diff --git a/.gitignore b/.gitignore
index fc34423..5f36d58 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,9 +2,6 @@ no_push/
repsy.txt
gradle.properties
-.gradle
-build/
-!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
.kotlin
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 5659e75..650e1cf 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,7 @@
-
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 94a25f7..35eb1dd 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,6 +1,6 @@
-
+
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index 277c526..861a34d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -22,7 +22,10 @@ application {
tasks.named("run") {
environment("APP_PORT", project.findProperty("appPort")?.toString() ?: "42000")
+ environment("PAGE_ABSOLUTE_PATH", project.findProperty("recorder_full_path")?.toString() ?: "/chemin_manquant")
+
}
+
publishing {
publications {
create("maven") {
@@ -58,9 +61,6 @@ dependencies {
testImplementation(platform("org.junit:junit-bom:5.10.0"))
testImplementation("org.junit.jupiter:junit-jupiter")
testRuntimeOnly("org.junit.platform:junit-platform-launcher")
-
- // My own hello world dependencie
- implementation("org.example:hw_dependencie:1.0.0")
}
tasks.test {
diff --git a/code_review/REVIEW_PART1.md b/code_review/REVIEW_PART1.md
deleted file mode 100644
index dc29b74..0000000
--- a/code_review/REVIEW_PART1.md
+++ /dev/null
@@ -1,140 +0,0 @@
-# Review: Part 1, Minimal Java App
-
-## First, the headline
-
-You are further along than you think. Reading your submission top to bottom, the most valuable thing in the whole repo is not the code, it is your `logbook.md`. The habit of writing down what you observed, what you guessed, what you tried, and what changed your mind is the single highest leverage skill in this whole field, and most developers two or three years into their careers still do not do it. You did it on day one of an exercise nobody made you do. Hold on to that.
-
-The rest of this doc is going to focus on growth areas, because that is the point. But read the strengths section first and let it sink in, because it is real.
-
----
-
-## What worked well
-
-These are not throwaway compliments. Each one is a behavior worth keeping.
-
-**1. You built a working thing end to end.**
-A real HTTP server, a real logging stack, a real Gradle build. You picked a small library you had not used before (`fusionauth/java-http`) and got it serving traffic. That is a complete loop, and a lot of people get stuck before closing it.
-
-**2. You debugged a real problem with real evidence.**
-The `BindException: Permission denied` story is textbook good debugging. You read the actual error message, you formed a hypothesis (port permission), you confirmed it with a source, you understood the underlying reason (ports under 1024 are privileged), and you fixed it. You did not just change the port and shrug. That is the loop you want to repeat for every bug you ever see.
-
-**3. You noticed when something did not match your mental model and you stopped to investigate.**
-When the server shut down immediately, your logbook note was basically "no clue why this happened, going in with the debugger." That instinct is gold. Most juniors paper over surprises. You named yours, opened a debugger, asked for help when the debugger did not give you enough, and worked through the JVM lifecycle reasoning until it made sense. The Schrödinger thread framing made me laugh, and we will come back to it in the growth section, because the instinct is right even if the explanation is not quite.
-
-**4. You did not hide your dead ends.**
-You wrote down the wrong turns: the cache-clearing detour, the misplaced `application` block, the moment you dismissed a hypothesis. That honesty is the thing that lets future-you (and reviewers like me) actually help. Polished writeups that pretend everything was linear are far less useful than a messy log of what really happened.
-
-**5. You asked the right question about reproducibility, unprompted.**
-In the middle of the toolchain debugging mess, you stopped and asked how anyone can be sure the same JVM version is used across builds if it is not stated explicitly anywhere. That is not a junior question. That is the kind of thing that, in a real team, would make a senior nod and say "yes, exactly, that is why we pin our toolchains." It is also what led you to the actual fix (forcing Gradle to download a specific JDK). The lesson worth keeping: when something works "by accident" because of whatever is on your machine today, that is a signal to pin it down, not to move on.
-
----
-
-## Growth areas
-
-Each item below is structured the same way: what happened, why it matters, what to try next. None of these are deal breakers. They are the next layer of skill on top of what you already showed.
-
-### 1. Your `Thread.currentThread().join()` works, but for a different reason than you wrote down
-
-Your explanation in the logbook said the main thread is asked "to wait for the main thread to shut down" and called it a Schrödinger thread. The mental image is fun, but the actual mechanic is simpler and worth getting precise about: `Thread.join()` blocks the calling thread until the target thread terminates. When the calling thread and the target thread are the same thread, it can never terminate while it is waiting on itself, so it just blocks forever. Your code works because `main` hangs indefinitely, which keeps the JVM alive, which keeps the server running. It is a side effect, not a design.
-
-Why this matters: it works, but it is the kind of code a senior would flag in review. There are cleaner idioms for "keep the process alive until shutdown":
-- a `CountDownLatch` that is counted down by a JVM shutdown hook
-- a blocking call on the server itself, if the library exposes one
-- `Thread.sleep(Long.MAX_VALUE)` in a loop (also a hack, but a more honest one)
-
-The reason to care is not style. It is that when you actually need to coordinate shutdown (close DB connections, flush logs, stop accepting new requests), the latch pattern gives you a hook. `join()` on yourself does not.
-
-### 2. Log levels are part of the API
-
-Your 404 branch logs `logger.error("Not Found")`. A 404 is a normal response, not an error. In a real production system, every missed request would land in your error dashboard and on-call's pager. The habit to build:
-
-- `ERROR`: something went wrong that needs human attention
-- `WARN`: something unusual happened, you should look later
-- `INFO`: a normal event worth recording
-- `DEBUG`: detail useful when investigating
-
-A request hitting an unknown path is `INFO` at most, often nothing at all. Audit your own service the same way you would audit somebody else's: imagine you are on call at 2am and your phone is buzzing. Would you want this log line to wake you up?
-
-### 3. Read error messages literally, and do not reject a hypothesis you have not tested
-
-This is the most important note in the whole review, so I am going to spend more time on it.
-
-In the logbook you wrote that GPT said you did not have a proper JVM, and you replied "Ofc bullshit i have a proper JVM" because `javac --version` returned a result. But the original error said:
-
-> Toolchain installation '/usr/lib/jvm/java-21-openjdk-amd64' does not provide the required capabilities: [JAVA_COMPILER]
-
-The error is not "you do not have a JVM." It is much more specific: "this particular toolchain installation does not advertise a JAVA_COMPILER capability." That is a real thing. It usually means a JRE-style install (no `javac`), or a multi-package distribution where the compiler package is not present, or a symlink pointing somewhere weird. GPT was closer to the truth than you gave it credit for; you dismissed the hypothesis based on a different test (`javac --version`) that was not actually testing what Gradle was complaining about.
-
-The lesson is not "trust GPT more." The lesson is two things:
-
-1. **Read the error message word by word.** "does not provide the required capabilities" is a different claim than "is not a JVM." Errors are usually written carefully. When you skim them and substitute a paraphrase in your head, you start chasing the paraphrase instead of the actual problem.
-2. **Do not reject a hypothesis without a test that can actually disprove it.** `javac --version` works on your shell PATH; it does not test what Gradle's toolchain resolver sees. To actually test "is this Gradle toolchain install missing the compiler", the right move is to look at the contents of `/usr/lib/jvm/java-21-openjdk-amd64` and check whether `bin/javac` is there.
-
-You eventually got to a working answer (force Gradle to download its own JDK), but the path was longer than it needed to be because you ruled out the right answer too early. This is the single most common debugging anti-pattern, and noticing it in yourself is half the cure.
-
-### 4. Verify casual observations before they become beliefs
-
-Your bonus note said `/TEST` worked instead of `/test` and you concluded HTTP endpoints "are not case sensitive at all." This is worth double-checking, because:
-
-- HTTP paths are case sensitive per the spec.
-- Your code uses `path.equals("/test")`, and `String.equals` in Java is case sensitive.
-
-So if `/TEST` actually returned 200, something interesting is happening (the library might be normalizing the path, the browser might be doing something, or the test was not what you remember). The exercise: reproduce it with `curl -v http://localhost:42000/TEST` and `curl -v http://localhost:42000/test` and see what you actually get. Then look in the `fusionauth/java-http` source or docs for any path handling. You may find that your original observation was right but for a different reason than you thought, or that it was wrong, or that browsers do something subtle. Whichever it is, the value is in chasing the question to the end instead of leaving a half-formed conclusion in the logbook.
-
-This generalizes: every time you write down "I noticed X", ask yourself "do I actually know X is true, or did I see one example?" One example is a hypothesis, not a fact.
-
-### 5. The catch block is doing very little work
-
-```java
-} catch (InterruptedException e) {
- logger.info("It seem as something fucked up!");
- throw new RuntimeException(e);
-}
-```
-
-Three small things worth knowing:
-
-- Logging at `info` for what the message itself flags as a failure.
-- The message tells future-you nothing about what was happening (which server, which port, what was being awaited).
-- Wrapping a checked exception in a `RuntimeException` is sometimes the right call, but here you do not really need the catch at all; you could declare `throws InterruptedException` on `main` and let the JVM handle it.
-
-Compare to something like:
-
-```java
-} catch (InterruptedException e) {
- Thread.currentThread().interrupt();
- logger.warn("HTTP server main thread interrupted, shutting down", e);
-}
-```
-
-The `Thread.currentThread().interrupt()` line is the convention for restoring the interrupted state, the log message tells you what happened, and the exception object itself is passed in so the stack trace is preserved. Tiny details, but they are the difference between a log line that helps and one that wastes your time.
-
----
-
-## Suggested follow-up exercises
-
-Small, concrete, do them in any order:
-
-1. **Reproduce the case sensitivity claim with curl, not a browser, and document the result.** One paragraph in the logbook with your finding and your best explanation of why.
-2. **Replace `Thread.currentThread().join()` with a `CountDownLatch` plus a shutdown hook.** Write three lines explaining what each piece does.
-3. **Do a log-level audit on your service.** For each `logger.X(...)` call, ask "would I want this in production at this level?" Adjust as needed.
-4. **Write a three-line postmortem of the JVM toolchain debug.** What was the actual root cause, what did you try first, what would you do differently next time. This is a tiny exercise but it cements the lesson.
-
----
-
-## What to focus on in Part 2
-
-Part 2 is private repository authentication, which is mostly a debugging exercise dressed up as a configuration exercise. The two things that will most help you:
-
-1. **Keep the logbook discipline.** Same format, same honesty about dead ends.
-2. **When something fails, the error message is the primary source of truth.** GPT and Stack Overflow are second-tier sources at best, and you should always cross-check what they say against what the error actually says. The toolchain story above is the canonical example.
-
-If you build those two habits in Part 2, the rest of the parts (Docker, intentional failures, runbook) will go much faster, because they are all variations on the same skill.
-
----
-
-## A closing note
-
-Solo-learning without seniors who give you real feedback is genuinely hard. A lot of what makes someone "good" at this job is just having watched an experienced person debug in real time and absorbed their reflexes. Without that, you have to manufacture the loop yourself, and that is what this exercise (and your logbook) is doing. Trust that the discipline you are building right now compounds, even when the day-to-day feels slow.
-
-You are already doing the right things. The rest is reps.
diff --git a/code_review/REVIEW_PART1_FOLLOWUP.md b/code_review/REVIEW_PART1_FOLLOWUP.md
deleted file mode 100644
index 7763be0..0000000
--- a/code_review/REVIEW_PART1_FOLLOWUP.md
+++ /dev/null
@@ -1,77 +0,0 @@
-# Review: Part 1 follow-up
-
-## Headline
-
-This round is a real step up. Not flattery, calibration: the work you did on the four exercises is meaningfully better than the original Part 1 submission, and the reason it is better is not because the code got bigger or the topic got harder. It is because of how you investigated. Specifics below.
-
----
-
-## What was strong
-
-**1. The case sensitivity exercise: you went past the answer and found the actual cause.**
-You could have stopped at "I tested in three browsers and curl, paths are case sensitive, my original observation was wrong, done." That would have been a passing answer. Instead you went looking for why your original observation had seemed to show the opposite, even after the retest. You noticed that typing `/TEST` directly in Brave returned 404, but typing `/test` and then editing the URL to `/TEST` returned 200, and you traced that inconsistency to browser autocompletion silently rewriting `/TEST` into `/test` from your history. The conclusion you wrote, that you need to be careful about the difference between what you think you are sending as input and what you are actually sending, is the right lesson, and you arrived at it by yourself. That is the difference between memorizing a fact and understanding a phenomenon.
-
-**2. The CountDownLatch(2) experiment is the best thing in this submission.**
-After you got the count-1 version working, you deliberately changed it to count-2 to see if your mental model of how the latch worked was correct. When the program exited anyway, instead of shrugging and reverting, you investigated and corrected your own model: SIGINT is OS-level, it kills the JVM regardless of what your code is doing, and the shutdown hook is just a chance to run cleanup before that happens.
-
-I want to be very clear about why this matters. Most juniors, and a lot of mid-level engineers, treat working code as the end of the road. You treated it as a hypothesis and stress-tested it. That is the single behavior that separates engineers who keep growing from engineers who plateau. It is also a habit that is very hard to teach and you appear to have it natively. Hold on to it.
-
-**3. You used the review feedback as a tool, not as a verdict.**
-The line in your logbook ("It remind me the reviewer said each words of an error is important. We may think each word of reviewer is important as well") is exactly what I hoped for. You took the toolchain lesson and applied it to a different situation. That generalization step is where feedback actually becomes skill.
-
-**4. The shell-side validation of the shutdown hook.**
-Sending `SIGINT` from a separate shell, identifying the right PID with `ps aux | grep '[g]radlew'`, and then stopping to figure out the `[g]radlew` regex trick on your own. None of that was required. You did it because you were curious and slightly annoyed at yourself for not understanding it. That is exactly the right energy.
-
----
-
-## One real bug
-
-`Main.java:17` currently has `final CountDownLatch latch = new CountDownLatch(2);`. This is the experimental value from your "what if I set it to 2?" test. It needs to be `1`.
-
-Here is why it matters, even though the program "still exits":
-
-- With count `1`, the design works as intended: shutdown hook counts down, `latch.await()` returns, main thread runs to completion, try-with-resources closes the server cleanly, program exits.
-- With count `2`, the latch never reaches zero, so `latch.await()` blocks forever. The program still exits when you SIGINT it, but only because the JVM kills the main thread as part of shutdown. The graceful-shutdown path is dead. Nothing after `latch.await()` in main can ever run.
-
-Today that does not show up because there is nothing important between `latch.await()` and the end of `main`. The moment you add anything (close a database connection, flush a metrics buffer, write a goodbye log line), the bug bites you and the symptom will be confusing because the program looks like it works.
-
-The fix is one character. The habit to build is bigger: **before you commit, run the code one more time in its intended final state.** Experimental values are easy to leave behind. A quick "did I revert my probes?" pass before `git add` is the cheap way to catch them.
-
----
-
-## Two smaller notes
-
-**The catch block from growth area 5 is unchanged.**
-You addressed all four explicit exercises, which is fair, and growth area 5 was in the discussion section without a corresponding exercise. So this is not a miss, just a follow-up. The block currently logs at the wrong level, gives no context, and wraps a checked exception in a runtime one for no real reason. When you have ten minutes, take another look at it with the log-level habit you just built in exercise 3 and see what you want to change.
-
-**Lambda style note.**
-Your shutdown hook is written like this:
-
-```java
-Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
- @Override
- public void run() {
- latch.countDown();
- }
-}));
-```
-
-This is the pre-Java-8 style, which is what most older Stack Overflow answers will show you. Since Java 8 (you are on 21), the idiomatic version is:
-
-```java
-Runtime.getRuntime().addShutdownHook(new Thread(() -> latch.countDown()));
-```
-
-Same behavior, much less ceremony. Worth knowing because once you start spotting it, you will see opportunities for it everywhere. It is also a good signal when reading other people's code: if you see anonymous inner classes everywhere in modern Java, the codebase is probably copying patterns from before 2014.
-
----
-
-## Green light for Part 2
-
-You are ready. Part 2 (private repository auth) is going to test the same skills you just demonstrated, but with a class of error that is less specific than what you have seen so far. Auth failures often arrive as 401, 403, "could not resolve dependency", or just silence, and the work is figuring out which of network, credentials, scope, host, certificate, or config is actually the cause.
-
-Two things to carry forward into Part 2:
-1. Keep the logbook style. It is the most valuable artifact you produce.
-2. The "scope/context I am working into" frame you wrote in your toolchain postmortem is going to be directly useful again. When auth fails, the first question is always "auth from whose perspective, against what, with what credentials." That is the same shape of question.
-
-Good work this round.
diff --git a/code_review/REVIEW_PART2.md b/code_review/REVIEW_PART2.md
deleted file mode 100644
index 81f66e5..0000000
--- a/code_review/REVIEW_PART2.md
+++ /dev/null
@@ -1,115 +0,0 @@
-# Review: Part 2, Private Repository Authentication
-
-## Headline
-
-Part 2 was harder than Part 1 by a wide margin. The space of "things that can go wrong with private Maven auth" is much larger than the space of "things that can go wrong with a tiny HTTP server", and you spent a long evening (two evenings, by the timestamps) actually living inside that space rather than skipping past it. The work shows. So does one important miss, which we have already discussed separately and I will not re-litigate here. This review is about everything else.
-
----
-
-## What was strong
-
-**1. You isolated where auth fails, not just whether it fails.**
-This was the part of the submission I most wanted to see and you did it without being asked. You did not stop at "the build breaks with bad credentials." You ran three separate experiments, one per credential field, and discovered the layered behavior:
-- Wrong URL: fails at dependency fetch time, immediately.
-- Wrong username: fails only when a *new* dependency is introduced. Existing dependencies resolve from the local jar cache, so the build looks healthy.
-- Wrong password: same pattern, with the failure surfacing only when the cache is invalidated.
-
-That is real systems thinking. The "auth is partially broken but the symptoms are intermittent" scenario is one of the most expensive bugs in real engineering, because by the time someone notices, the code has been deployed and the actual cause is days behind in commit history. You found it on purpose, in a controlled exercise. That is exactly the right way to learn it.
-
-**2. The silent publish investigation.**
-This is the standout debugging episode in the whole submission. `./gradlew publish` was returning `BUILD SUCCESSFUL` while doing nothing, because the configuration cache was short-circuiting the entire task. The log line `Skipping task ':publish' as it has no actions` was right there, but the surface signal (BUILD SUCCESSFUL) was reassuring enough to mislead. You ran with `--debug`, tried Ctrl+F first, found nothing useful that way, then handed the full log to Claude, and the two of you found the truth together: the task was being skipped, no HTTP request was ever made, no auth failure was ever generated.
-
-The takeaway you saved into your logbook (Claude's articulation, but the *insight* is yours because you went looking for it) is worth keeping somewhere visible: when you see UP-TO-DATE on a task in Gradle, that means the task did not run at all, not that it ran successfully. BUILD SUCCESSFUL plus UP-TO-DATE plus silence equals "skipped", not "succeeded". That distinction is going to save you real time at some point in your career.
-
-**3. You refused to take the easy way out on Groovy vs Kotlin.**
-The Repsy docs only had Groovy DSL examples. You could have switched your project to Groovy DSL and called it done. You explicitly noticed that option and rejected it: *"Changin a stack for not using my brain is stupid."* That is the right call, and the kind of judgment that separates engineers who keep growing from engineers who optimize for finishing the ticket. The conversion work was painful but it was your work.
-
-**4. The Debian APT Gradle 4.4.1 detour.**
-Discovering that your system Gradle was from 2018 because that is what `apt install gradle` provides on Debian 13, and then learning that the wrapper is the right way to escape this trap, is a small but useful piece of professional knowledge. It is the kind of thing that takes most engineers years to encounter. You have it now. And yes, the elephant deserved every word. The Debian packaging situation is genuinely as absurd as your reaction made it sound.
-
-**5. Architectural decisions made on purpose.**
-You first wrote that you wanted to upload every dependency to your private repo for full independence. You discussed it with GPT, considered the duplication and maintenance cost, and revised your plan to a hybrid: Repsy as a proxy in front of Maven Central, plus your own published dependency for the part of the spec that requires it. The reasoning is in your logbook, with the article you read to support the change. That is what real architectural decision-making looks like: a position, a counterargument, a revised position with the source you used to update. Mr. Van der Rohe got told, and your *"More can less"* line is actually a real architectural principle in disguise: when two approaches each illuminate a different aspect of a problem, doing both is sometimes the right call, not the lazy one.
-
-**6. Self-naming your failure pattern.**
-The passage where you point back at the JDK toolchain debug from Part 1, then at the case sensitivity confusion, then at this round's Gradle 4.4 mix-up, and conclude *"I keep doing same big mistake : deep lack of stringency"* is meta-cognitive in a way that is rare at any level. Most engineers, when they make the same kind of mistake twice, treat each instance as a separate event. You named the class. That is the prerequisite for actually breaking the pattern, which is the next step.
-
-I want to be honest about that next step too: you noticed the pattern *after* making the mistake again. Naming it is great. Catching yourself before you make it for a third time is the test, and that test is not yet complete. Watch for it in Part 3. The most likely shape it takes for you, based on what I have seen, is "I will assume the environment matches what I expect rather than verifying."
-
----
-
-## What was missed
-
-**1. The credentials in `gradle.properties`.**
-We have already addressed this separately and you are working on the rotation. I am noting it here for completeness and to consolidate the actual lessons in one place, because once you see them the rest collapses.
-
-You did one part right and missed two.
-
-**What was right.** You used `property("repsyUsername")` in `build.gradle.kts` instead of hardcoded strings, and you set up the `no_push/` folder with a scoped access token to hand to me as the reviewer. Both are correct moves and worth saying so.
-
-**What was missed, part 1: location.** There are two files called `gradle.properties`, and the spec named one of them on purpose:
-
-- `~/.gradle/gradle.properties` lives in your user home (on your machine, `/home/ant/.gradle/gradle.properties`). It sits outside every project, so it never gets committed to any repo. This is the file the spec asked for.
-- `gradle.properties` at the root of the project is the one you used. It sits next to `build.gradle.kts`, gets committed by default unless gitignored, and is shared with anyone who clones the repo.
-
-Both files are read by Gradle the same way, which is why your code worked. But location is what determines whether the file ends up in source control, and the spec was specific about location for exactly that reason. The clean workflow once you see this: real credentials go in `~/.gradle/gradle.properties` (which never touches Git), and the project ships a `gradle.example.properties` (the template file you added in your fix commit) so anyone cloning knows what variables to set without seeing any real values.
-
-**What was missed, part 2: scope of the credential itself.** Repsy gives you two kinds of credential, and they are not interchangeable:
-
-- **Account credentials** (your Repsy login: account username plus account password). These are the keys to your whole Repsy account. If they leak, an attacker can log into your dashboard, modify or delete any repo, change account settings, and see anything tied to the account.
-- **Scoped access tokens** (the kind in your `no_push/repsy.txt`, the `ant` / `rdt-...` pair). These are scoped to a specific repo and a specific permission level. If they leak, the blast radius is limited to that one repo, and they can be revoked individually without changing your account login.
-
-You used your *account credentials* for Gradle automation, and you used a *scoped token* only for handing to me. The instinct behind the token (this is the credential I can give to a reviewer) was exactly right, and it generalizes: scoped tokens are also the right credential for your own automation to use, for the same reason. If your Gradle config ever leaks (as it just did), you would much rather lose a scoped repo token than your whole account login. The earlier leak was so much worse than it needed to be specifically because Gradle was wired to your account password.
-
-The target state is: account password used only for logging into the Repsy dashboard manually. Every automated consumer (your Gradle build now, anyone you collaborate with later) uses its own scoped token, with only the permissions it needs. Different tokens for different consumers, each individually revocable.
-
-**The two principles worth carrying out of this incident:**
-
-1. **A credentials plan that protects one secret does not protect all of them.** You had a plan for the no_push token. The plan held for that credential and missed a different credential, with different scope, in a different file. The way teams enforce this in practice is with `.gitignore` defaults that exclude common credential file patterns, and pre-commit hooks that scan staged diffs for credential strings. Worth knowing those exist.
-
-2. **Credentials do not travel over normal communication channels.** Once you have decided a value is sensitive (which gitignoring it implies), then sending it over chat, email, screenshots, or pasting it into a doc is the same kind of leak as committing it. The category of tool for this is dedicated secret-sharing: Bitwarden Send, 1Password share links, encrypted notes that auto-delete. When you genuinely need to hand a credential to a person, those are the channels. The general rule of thumb: if a credential is worth gitignoring, it is worth not pasting into a chat window either.
-
-**One more thing, addressed to a question you asked.** In your logbook on Part 2 night you wrote:
-
-> *"I'm just thinking (late night thinking) ,I may probably have not only loaded credential from gradle properties to avoid having them hardcoded but also loaded them from a hash. to not have them in plain text anywhere.. . idk not very clear on my mind its maybe even note possible. Hope rewiever will have some insights"*
-
-You were right. That instinct, that "is there something more I should be doing about credentials sitting in plaintext" question, was the correct instinct. Everything in this section, the user-home file, the scoped tokens, the principle that credentials should not travel over chat, is what is on the other side of that question. If you had pushed on it at midnight instead of letting it go, you would probably have found the standard idioms before you committed, and the leak would not have happened.
-
-The literal thing you suggested (loading credentials from a hash) is not actually how this is solved, because Gradle needs the real credential to authenticate against Repsy and a hash cannot be reversed back into one. So your specific proposed fix would not have worked. But the *underlying unease* you felt, the sense that plaintext-in-a-file was not enough, was correct. The fix is not to obscure the credential, it is to keep the credential out of any file that gets shared with anyone (which is what `~/.gradle/gradle.properties` and scoped tokens give you).
-
-The lesson is not "stay up later." It is **trust your security intuitions and chase them down, especially when you are tired.** Tiredness is when the cost of pursuing the thought feels highest and the cost of skipping it is invisible. Both of those are illusions. The cost of pursuing it is one Google search. The cost of skipping it shows up later, sometimes much later, sometimes as a public commit that you have to clean up at 11am the next morning.
-
-**2. You almost forgot the documentation requirement.**
-The task spec for Part 2 said: *"Document what error you see when auth is wrong, how you identified the root cause, how you fixed it."* You caught yourself near the end of the session: *"Guess who missed an important thing about the tesk"*.
-
-Two things to take from this. First, you self-corrected, and that is good. Second, the reason you nearly missed it is that you were chasing the technical work and treating the documentation as an afterthought. In a real team, documentation is not an afterthought. It is half the deliverable. The mental model that helps is: when you read a task, before you start, list what the deliverable looks like. Then check it at the end. You are doing the second half of that loop already, you just need to do the first half too.
-
-**3. `mavenCentral()` is gone from `build.gradle.kts`.**
-You replaced it entirely with Repsy as the only repository, which Repsy proxies from Maven Central. This is defensible and you reasoned about it. Worth noting that in a team setting this is the kind of choice you would talk through with someone before merging, because if Repsy goes down or your token expires, your build is also down. The mitigation, if you keep this approach, is to make sure the team has a recovery plan: how do you build if Repsy is unreachable? Worth thinking about for next time.
-
----
-
-## Two smaller notes
-
-**The `_WRONG` credentials mechanism.**
-You introduced `repsyUrl_WRONG`, `repsyUsername_WRONG`, `repsyPassword_WRONG` as a way to swap broken values in for testing. The mechanism works, but the values themselves were the real values with `WRONG` appended, which means they reveal the real values to anyone reading the file. In the context of the credentials leak this is moot, but the principle is worth naming: **broken-on-purpose values for testing should be obviously, structurally broken**, not derivable from the working values. Use literal placeholders like `INTENTIONALLY_INVALID` or random strings.
-
-**Cache optimization rabbit hole.**
-You dove into `org.gradle.configuration-cache` and parallel configuration caching after you finished the main work. Then your benchmarks did not show meaningful speedup, and your own logbook called it: *"doesnt seem revelant : project may be too small"*. You noticed and stopped. That is the right instinct. Worth saying explicitly: **on small projects, build optimization is almost always a waste of time**, because the fixed cost of starting the JVM dwarfs the actual build work. Optimization is a real-world skill but it has a minimum project size where it stops being theater. You found that line yourself, which is good.
-
----
-
-## What this round tells me
-
-You are noticeably more comfortable with the shape of this work than you were in Part 1. The investigation is more disciplined, the architectural reasoning is more deliberate, and the meta-awareness is sharper. The "lack of stringency" pattern you named for yourself is real, and the fact that you can now point at it across multiple incidents (toolchain, case sensitivity, this round's Gradle 4.4 confusion) means you can start practicing the fix: **before you trust that an environment matches your expectation, run one cheap command to verify.**
-
-Concretely, the cheap commands that would have saved you time across these incidents:
-- `gradle -v` to check the actual Gradle version, not the one you assumed.
-- `java -version` and `javac -version` to check the actual toolchain.
-- `curl -v` to check the actual HTTP behavior, rather than relying on a browser.
-- `git status` to check what is actually staged and tracked, rather than trusting your `.gitignore` is doing what you think.
-
-These are the verification commands. They take seconds. They are the antidote to the stringency problem you named. Make them reflexive.
-
----
-
-Good work this round. Two evenings of grinding through real, varied debugging, with real lessons named at the end. That is what learning looks like.
diff --git a/code_review/REVIEW_PART3.md b/code_review/REVIEW_PART3.md
deleted file mode 100644
index a3de8d2..0000000
--- a/code_review/REVIEW_PART3.md
+++ /dev/null
@@ -1,127 +0,0 @@
-# Review: Part 3, Dockerize Properly
-
-## Headline
-
-This was the most ambitious round and it has a different shape from the others. The technical work is mid-level engineering, multi-stage builds, custom JREs via jlink, BuildKit secrets, and it works. But the *way* you got there has a question worth sitting with. Both go in this review.
-
-Before that, the part you do not always get credit for: between the Part 2 review and this round, you also went back and did the Part 2 follow-throughs. That deserves its own paragraph.
-
----
-
-## Part 2 follow-throughs you completed
-
-The "Post review follows ups" section in your logbook (lines 802 onwards) documents that you:
-
-- Switched Gradle from account credentials to repo-scoped credentials, exactly as we discussed.
-- Renamed the property keys to `repsyRepoUsername` / `repsyRepoPassword` so the scope is visible at the call site. This was your own addition, not in the review.
-- Replaced the `_WRONG` values with safe placeholders that do not derive from the working ones.
-- Added `mavenCentral()` back as a fallback alongside Repsy, addressing the single-point-of-failure concern.
-- Tested by wiping every Gradle cache directory and rebuilding from clean.
-
-Five concrete fixes, all from one review. Most people address the one thing that broke and move on. You worked through the whole list and added an improvement of your own (the rename) on top. Worth saying so out loud.
-
----
-
-## What was strong in Part 3 itself
-
-**1. The multi-stage architecture is correct.**
-Three stages (build, jre-build, runtime) with the final image starting from bare Alpine 3.23. The final image carries the fat JAR and a custom minimal JRE, nothing else. No Gradle, no JDK, no source code. That is the production-grade pattern, not the beginner pattern.
-
-**2. Credentials are handled correctly at the Docker layer.**
-`--mount=type=secret,id=gradle_props` injects `gradle.properties` only during the RUN step that needs it. The credentials are never written into any image layer. Even if the final image leaked publicly, the credentials would not be extractable from it. After the Part 2 incident, this matters more than the average code review point.
-
-**3. The jlink custom JRE is genuinely advanced work.**
-Using jdeps to identify which modules the app actually needs, then jlink to assemble a stripped JRE with only those modules, is mid-level engineering. Most engineers do not learn jlink for years.
-
-**4. The layer cache strategy is correctly ordered.**
-Copy build files first, run `gradle dependencies`, then copy source, then build. Source-only changes do not invalidate the dependency layer. The 36s to 8.7s rebuild speedup you measured (logbook line 1167) is real and earned.
-
-**5. The non-root user is created at build time, not at startup.**
-`addgroup -S appgroup && adduser -S appuser -G appgroup` followed by `USER appuser`. Exactly what the task asked for, with the user baked into the image rather than created on first launch.
-
-**6. You annotated the new Dockerfile line by line.**
-Every directive has a comment explaining what it does and often why. Some are perfunctory, most are useful. This is the right thing to do after vibecoding: document until you actually understand. We will talk about the order question shortly, but the documentation pass itself is correct work.
-
-**7. You created the `.dockerignore` yourself.**
-Logbook line 1348: *"Okay actually I think the reviewer will kill me. I just remember that .dockerignore right now"*. You caught it without prompting. The contents are sensible: secrets, build artifacts, `.git`, IDE files. No surprises.
-
-**8. You reasoned about command scope, late but correctly.**
-You first ran `docker system prune -a --volumes` as your version of "clean state." That command nukes every unused Docker resource on the entire machine. It was harmless on your install because you only have one project on it; on a setup with other work, it would have been catastrophic. Then you asked me for the right command, got `docker compose down -v --remove-orphans`, and instead of just adopting it and moving on, you compared the two in your logbook (line 1346): project-scoped vs system-wide, project-scoped is safer. The praise is not for the first command (which was risky). It is for the comparison you made afterward. The same reasoning applied *before* running anything destructive would have caught the issue earlier, and that is the version of this habit worth keeping.
-
-**9. You pushed back on Part 2 advice and you were right to do so.**
-Logbook line 1177 argues that build optimization on small Docker projects is different from build optimization on small Gradle projects, because Docker rebuild iterations are much slower and the cost of waiting compounds during debugging. That is a correct refinement of the Part 2 advice. The "optimization is theater on small projects" line was about Gradle specifically, and you accurately spotted that the same logic does not extend to Docker. This kind of independent thinking is the difference between absorbing feedback and actually internalizing it.
-
----
-
-## The process question
-
-Now the part that matters most.
-
-By your own admission (logbook line 1169): *"Okay I must completly admit from jlint it was mostly 'full' vibecoding. I just wanted an optimized stuff which build faster than my basic one."*
-
-You shipped code you did not fully understand, then went back and learned it. The annotation pass you did afterward is the right recovery, and the fact that you did the recovery at all puts you ahead of most people in the same situation. But the question worth sitting with is not "is vibecoding bad." It is **what order matters, and why.**
-
-The order you used: vibecode, push, understand.
-The order that costs less long-term: understand, push.
-
-Same final code, very different long-term cost. Three reasons:
-
-**1. Pushed-then-understood code becomes load-bearing before you can defend it.** When something breaks at midnight a month from now, you will be debugging code you did not write, in a state you do not remember choosing, against a problem you cannot fully describe. The annotation pass you do now is read-only. Pre-push, the same understanding pass could have caught real issues (you would have noticed if jlink picked the wrong modules, for instance) and you could have adjusted. Post-push, you are just describing what is there.
-
-**2. The vibecoded artifact subtly shapes what you ask next.** When you ask Claude "is this jlink config right?", the answer is constrained by what is already in the file. When you ask "what would the right jlink config be for an app like this?", the answer is freer and more useful. The first question is what most post-vibecode review looks like. The second is what pre-vibecode design looks like. The first one tends to confirm what you already pushed.
-
-**3. It is harder to reverse a decision once it is committed.** Sunk cost is a real thing for engineers too. If you pre-commit to a multi-stage jlink build and then realize a single-stage with a slim JRE base would have been sufficient and simpler, the path of least resistance is to keep what you have. If you have not committed yet, swapping is free.
-
-The fix is not "stop using LLMs to write code." LLMs are tools and they are useful. The fix is: **for any non-trivial code, the understanding step happens before the push, not after.** It does not have to be from scratch. It can be "Claude generates this, I read it line by line, I ask three 'why' questions, I test one assumption by changing a value and observing what happens." Maybe an hour on top of the generation. The cost of skipping that hour is what we just talked about.
-
-You wrote this in your own logbook (line 1175): *"This way i will either stop to feel guilty for vibecoding too much and take thoses new concepts as mine"*.
-
-The "or" you wrote (stop or take as mine) is actually an "and" in practice. Take them as yours, by understanding before the push. That is the discipline.
-
----
-
-## What is still broken
-
-These are a mix. The first two are leftovers from previous reviews, still pending. The other two are new this round, both arrived with the vibecoded Dockerfile, both easy fixes.
-
-**1. `Main.java` line 17: `final CountDownLatch latch = new CountDownLatch(2);`.** (Carryover from Part 1 follow-up.)
-This is the second review where I am noting this. The fix is one character. I see your `// test` on line 54 and yes, I read it as the self-aware "this file is still in test mode" wink it is. I appreciate the gesture. Now fix the bug. "I know about it" does not help the next person who maintains this code, and the bug is genuinely real: the moment you put anything between `latch.await()` and program exit, the count-2 version drops it on the floor. Change `2` to `1`. I am going to stop being polite about this one specifically.
-
-**2. `Dockerfile` line 173: `EXPOSE 43000`.** (Carryover from your earlier Part 3 checkpoint.)
-The app listens on 42000 (`Main.java` line 21). The compose file correctly maps `43000:42000`, so functionally it works. But EXPOSE is documentation, and documentation that does not match reality is worse than no documentation. Should be `EXPOSE 42000`.
-
-**3. The original Dockerfile commented out at the top of the new file (lines 1 to 44).** (New this round.)
-Useful for your own learning right now, not OK for any shared codebase. Comments are not version control. The right tool for "I want to remember the old version" is `git log`. The convention exists because once code lives commented in a shared repo, nobody else will ever clean it up; removing someone else's commented code feels presumptuous, so it accumulates forever. For this exercise, fine. In a real PR, kill it.
-
-**4. `Dockerfile` line 5: stray French text.** (New this round.)
-The line ends with *"dans ton docker-compose.yml."* This is a sentence fragment Claude wrote in mid-explanation that ended up pasted into the file. Quick cleanup pass. Small thing, but the kind of detail reviewers notice and read as "did not check the work."
-
----
-
-## Two smaller notes
-
-**`.dockerignore` has a duplicated line.** `*.ipr` appears on lines 32 and 33. Cosmetic.
-
-**`build.gradle.kts` has accumulated dead dependencies.** `lombok` was added during your Part 2 wrong-credentials investigation and the project does not actually use it. `junit-jupiter-api:6.0.3` is marked in your own comment as *"not used dependencies so far. just here for repo logic testing/understanding"*. Both should either be removed or have a comment explaining why they stay. Carrying unused dependencies is a small cost on a small project and a real one on a big project; the habit to build now is "if it is not used, it is not declared."
-
----
-
-## The arc across three reviews
-
-Reading the three reviews back to back, the picture is consistent. You are technically capable, fundamentally curious, and meta-aware in a way that is genuinely rare. The patterns that also recur are:
-
-- **You leave behind small unfixed things.** CountDownLatch(2) flagged in two reviews now without being fixed. EXPOSE 43000 has carried unchanged through multiple revisions of the Dockerfile, including the rewrite. Each one is trivial alone. The pattern is what is interesting: finishing-touches are the part of the work where your attention drops fastest. Worth knowing about yourself.
-- **You ship before you fully understand.** Twice now. The credentials in `gradle.properties` was the unintentional version. The vibecoded Dockerfile is the deliberate one. Same shape underneath: action precedes verification.
-- **You catch yourself, but only after.** You named the stringency pattern after the third instance. You named the vibecoding after the push. The catch is real and it counts. The next test, the test that is not yet complete, is catching yourself before, not after.
-
-That third bullet is the same advice from Part 2 and Part 1. It keeps recurring because the next level of skill, for you specifically, is not more knowledge. It is the *timing* of when you apply what you already know.
-
----
-
-## Closing
-
-You produced more good engineering in this round than in either of the previous two. The Part 2 follow-throughs alone would be a respectable week of work for a junior. The Docker work on top of that is mid-level for the techniques used (jlink, BuildKit secrets, multi-stage layer cache strategy), and you are now in a position to actually understand all of it because you spent the time to annotate it line by line.
-
-Three reviews in, the picture I keep landing on is: you have the instincts, you have the curiosity, you have the meta-awareness. What you do not yet have is the *timing* of those instincts. That is a learnable skill and you are partway through learning it.
-
-Good work. Now fix the CountDownLatch.
diff --git a/code_review/REVIEW_PART3_FOLLOWUP.md b/code_review/REVIEW_PART3_FOLLOWUP.md
deleted file mode 100644
index bf95997..0000000
--- a/code_review/REVIEW_PART3_FOLLOWUP.md
+++ /dev/null
@@ -1,80 +0,0 @@
-# Review: Part 3 follow-up
-
-You worked through the Part 3 review like a punch list and addressed every item, plus several things that were not on the list. The pre-push checklist you built is the most mature move you have made across this whole exercise. This note is short because most of what is here is praise. There is also one specific shift in framing worth talking about, and two small new issues that the shift would have caught.
-
----
-
-## What you fixed (and what you fixed without being asked)
-
-From the review:
-- `CountDownLatch(2)` to `1`. Finally.
-- `EXPOSE 43000` to `42000`, including the comment line above it.
-- The commented-out original Dockerfile is gone.
-- The stray French fragment is gone.
-- `.dockerignore` no longer has the duplicate `*.ipr`.
-- `lombok` and the unused `junit-jupiter-api:6.0.3` are removed from `build.gradle.kts`.
-
-Beyond the review:
-- You also removed `jackson-databind`, which was unused and not on the list. You caught it yourself.
-- After the dependency cleanup, you re-ran `jdeps` and discovered the module set had changed: `java.desktop` and `java.sql` were no longer needed, and `java.logging` and `java.xml` were now needed. You updated `--add-modules` accordingly. That is the kind of follow-on thinking that distinguishes mechanical fix-and-move-on from actually understanding what just changed.
-- You fact-checked Claude's claim that the new module set would be smaller. Ran `jlink --add-modules X --output /tmp/test` for each module, measured with `du -sh`, confirmed. That is the verification habit applied correctly, on a claim you had every reason to take on faith.
-- You added a `README.md` that explains the build and run paths, which was not asked for.
-- You bumped `jdk_version=21` to `25` in the HOME profile so both profiles work with the `static void main()` syntax.
-- You noticed `// test` on `Main.java` line 54 yourself while running through your own checklist, and removed it.
-
-That last one is the thing I want to point at specifically. The checklist worked. Right there, in real time, on a real artifact you would otherwise have shipped. That is what the tool is for.
-
----
-
-## The checklist itself
-
-The line in your `pre_push_checklist.md` that I think is the strongest is this one:
-
-> *If you can't check a box honestly, you're not done.*
-
-That sentence is the whole discipline compressed into eight words, and the choice of "honestly" is the right bar. Not "if everything is perfect" but "if you cannot honestly say you did the check."
-
-Across three reviews we kept naming a pattern (small things left undone, attention dropping on polishing, action before verification). All three reviews pointed at the pattern. None of them gave you a tool that addressed it directly. You built the tool yourself. That is meaningfully different from absorbing feedback. That is taking the criticism and converting it into an external scaffold for future-you to lean on.
-
----
-
-## What the checklist did not catch
-
-Two new issues this round, both falling exactly under the "internal consistency: ports, variable names, constants" category your own checklist names:
-
-**1. `gradle.example.properties` has stale property names.** During the Part 2 follow-throughs you renamed the credential keys in `build.gradle.kts` to `repsyRepoUsername` / `repsyRepoPassword`. The template file still has the old names: `repsyUsername` / `repsyPassword`. Anyone who follows your README workflow (copy the example, fill in values, build) will hit a build failure because Gradle looks for keys that do not exist in their file.
-
-**2. The Dockerfile jlink module comment is stale.** You correctly updated the `--add-modules` line to `java.base,java.logging,java.instrument,java.naming,java.xml,jdk.compiler,jdk.unsupported`. But the comment block above it (lines 70-77) still describes `java.desktop` (AWT/Swing) and `java.sql` (JDBC), which are no longer in the list, and does not describe `java.logging` or `java.xml`, which are. The code is right; the documentation is now wrong about what the code does.
-
-I am noting these without making them the headline, because I do not think they are the most interesting part. The interesting part is the framing they point to.
-
----
-
-## The shift worth making
-
-Your own logbook captures the issue better than I can. Line 1460, in the middle of running the checklist on this very push:
-
-> *"Feel already as a pain in the ass to check with serious."*
-
-That is an honest description of what the task feels like. Walking through a diff hunting for inconsistency is *boring*. There is no novelty, no dopamine, no immediate feedback. It is exactly the kind of task that human attention struggles with, regardless of how disciplined someone is, and "summon more discipline" is not a real strategy. You are not unique in that. Most engineers feel the same way about the same kind of task. The ones who consistently catch these issues do not have better focus. They have better tools.
-
-The strategy that actually works: **for anything a computer can verify, the right tool is automation, not vigilance.** A checklist is a manual scaffold. A pre-commit hook, a CI check, or a script is the same scaffold, except the computer runs it for you, every time, without negotiation, regardless of how tired or distracted you are.
-
-Concrete examples that would have caught the two new issues this round, without any human attention required:
-
-- **A CI step that runs the build from a clean clone, using only what is in the repo.** If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails. CI fails. You see it before anyone reviews.
-- **A CI step that does `docker compose up --build` and hits the `/test` endpoint.** Catches the EXPOSE port mismatch we discussed in the Part 3 review. Catches network binding failures (relevant for Part 4 directly). Catches a whole class of "works on my machine" bugs.
-- **A pre-commit hook that fails if `gradle.properties` is staged.** Would have prevented the original credentials leak before any commit happened.
-- **A simple grep check, in the pre-commit hook or in CI, that flags `TODO`, `// test`, `// TEMP`, or large blocks of commented-out code.** Catches the kind of vestigial-code review your checklist asks you to do by hand.
-
-The framing shift: **the goal is not to be more vigilant. It is to remove vigilance as a requirement.** Your attention is a finite, expensive resource. Spend it on the parts of the work that genuinely need a human, jlink module selection, architectural decisions, code where there is no obvious right answer. Let the computer guard the boring perimeter.
-
----
-
-## Closing
-
-The pre-push checklist is a real artifact. Keep it. The next move is to take the items on it that a computer could verify and migrate them into actual automation, one at a time, as you go. You do not need to set it all up at once. One pre-commit hook that catches one specific class of mistake is a real win.
-
-For Part 4 specifically, since the task is about introducing and debugging operational failures: the network binding case (127.0.0.1 vs 0.0.0.0) is itself a great candidate for the kind of CI check described above. Build something that would catch it, *before* you build the failure. The act of building the check first will teach you more than fixing the failure afterward will.
-
-Good work this round. The trajectory is right.
diff --git a/documentation/logbook.md b/documentation/logbook.md
index 4dd4ab2..277c285 100644
--- a/documentation/logbook.md
+++ b/documentation/logbook.md
@@ -1,2310 +1,77 @@
-Part 1 – Minimal app
-
-• Create a small Java service (Spring Boot / plain Java / anything you’re comfortable with).
-- Creation of a java Hello world project powered by gradle with intelijii
-
-• One endpoint is enough (e.g. /health → ok).
-https://github.com/FusionAuth/java-http/https://fusionauth.io/blog/java-http-new-release
-Had previous experiences only with jetty. Chosed java-http cause minimalism plain java sound fun
-
-> Fuck off procrastination!
-1776446234472 Starting the HTTP server. Buckle up!
-1776446234494 Unable to start the HTTP server because one of the listeners threw an exception.
-java.net.BindException: Permission denied
-at java.base/sun.nio.ch.Net.bind0(Native Method)
-at java.base/sun.nio.ch.Net.bind(Net.java:565)
-at java.base/sun.nio.ch.Net.bind(Net.java:554)
-at java.base/sun.nio.ch.NioSocketImpl.bind(NioSocketImpl.java:636)
-at java.base/java.net.ServerSocket.bind(ServerSocket.java:391)
-at io.fusionauth.http.server.internal.HTTPServerThread.(HTTPServerThread.java:85)
-at io.fusionauth.http.server.HTTPServer.start(HTTPServer.java:96)
-at org.example.Main.main(Main.java:28)
-
-- Clearly a permission issue : java.net.BindException: Permission denied
-
-- You can't open a port below 1024, if you don't have root privileges https://stackoverflow.com/questions/25544849/java-net-bindexception-permission-denied-when-creating-a-serversocket-on-mac-os
-
-- Explaintaion : 0-1024 ports are privileged ports.
-
-- Fix : Use non privileged 4200 port instead. No 420 Weed server for now.
-
-- > Task :org.example.Main.main()
- Fuck off procrastination!
- 1776447559722 Starting the HTTP server. Buckle up!
- 1776447559743 HTTP server listening on port [4200]
- 1776447559743 HTTP server started successfully
- 1776447559743 HTTP server shutdown requested. Attempting to close each listener. Wait up to [10000] ms.
- 1776447559745 HTTP server shutdown successfully.
-
-- Absolutly no clue whth it shutdown automaticly. Probably stupid reason, I read again did'nt found. Lets go with debugger.
-Understanding nothing more. Thanks debugger.
-- Asked Free chatgpt without account
-- It seem to be a thread related problem : when the code is executed and we go until the end of main, server.close is called automaticaly. Normal JVM behaviour.
-
-Thread.currentThread().join(); : Ask the Main thread to wait for the main thread to shut down. A thread can't end up if he has to end up his own death to end. Schodinger Thread :)
-
-• Logging enabled
-
-- Went for the lazzy logback setup
-- copy/paste snipset from official configuration page : https://logback.qos.ch/manual/configuration.html
-- Strugle a bit to import the proper dependence from mavencentral. Finally goes for the rough solution, importing the largest all in one dependencie and not granular import one litle piece and one other.
-
-• App run locally (./gradlew run or equivalent)
-
-- Went to https://docs.gradle.org/current/userguide/application_plugin.html
-copy pasted
- application {
- mainClass = "org.gradle.sample.Main"
- }
-- Didn't catched i had to separate pluggin declaratiuion then usage so i copy pasted my wrong graddle in gp and get solution from there
--
-- ./gradlew run failed
-- > FAILURE: Build failed with an exception.
-
->What went wrong:
-Could not determine the dependencies of task ':run'.
-Could not resolve all dependencies for configuration ':runtimeClasspath'.
-Failed to calculate the value of task ':compileJava' property 'javaCompiler'.
-Toolchain installation '/usr/lib/jvm/java-21-openjdk-amd64' does not provide the required capabilities: [JAVA_COMPILER]
-
-- Ask my best friedn (AKA GPT)
-> Toolchain installation '/usr/lib/jvm/java-21-openjdk-amd64' does not provide the required capabilities: [JAVA_COMPILER]
-- He said I hadent a proper JVM installation (without compiler) so following command should return nothing. Ofc bullshit i have a proper JVM
-> javac --version
-- This graddle elephant is faulty
-- aded
-- > org.gradle.java.installations.auto-download=true
-- Download a fresh jdk to use for reproductable build
- > org.gradle.java.installations.auto-detect=false
- - Avoid using my own JDK broken setup
-
-> rm -rf ~/.gradle/caches
-rm -rf ~/.gradle/kotlin-dsl
-rm -rf ~/.gradle/daemon
-- Erase graddle cache. I leted GPT grab me by hand for the specific command. Just asked him how deleted entire cache.
-
- - Was trigered by GPT saying can do a reproductible build
- > org.gradle.java.installations.auto-download=true
-- How the hell can we be sure if a JVM version isnt explicitly told
-- GPT told me i was the most awesome God's creatire for pointing it out and proposed me to ad following code in seeting.gradle
-> java {
-toolchain {
-languageVersion.set(JavaLanguageVersion.of(21))
-}
-}
-
-- IT WORKED
-> > Task :run
-10:56:30.569 [main] INFO org.example.Main -- Fuck off procrastination!
-1776502590584 Starting the HTTP server. Buckle up!
-1776502590596 HTTP server listening on port [42000]
-1776502590596 HTTP server started successfully
-10:56:30.596 [main] INFO org.example.Main -- Server started on port 42000
-<==========---> 80% EXECUTING [10s]
-> :run
-
-- Bonus : Tried my endpoint http://localhost:42000/TEST instead of http://localhost:42000/test in firefow browser by mistake and discovered its not case sensitive at all
-
-
-_____________________________________________________________________________________________________________________________________________________________________________
-
-Suggested follow-up exercises
-
-1. **Reproduce the case sensitivity claim with curl, not a browser, and document the result.** One paragraph in the logbook with your finding and your best explanation of why.
-
-- First I thought I was probably when i thought i noticed it was probably crazzyness from half sleep cause it was impossible to reproduce the case sensitivity
-Testd http://localhost:42000/TEST on :
-brave v1.89.143 => 404 NOT FOUND
-firefox 140.7.0esr (64-bit) => NOT FOUND
-chrome 147.0.7727.116 (Official Build) (64-bit) => NOT FOUND
-
-then instead of typing directly on tab http://localhost:42000/TEST i typed http://localhost:42000/test and then correct manually with http://localhost:42000/TEST
-It gave me Successful HTTP request on brave v1.89.143
-
-- At this point I was like : shit wth is happening. And thought okay it may be cache or autocompletion. Breath deeply, Looked calm at what exactly happend when i sent request through browser tab.
-- It was autocompletion through browsr historic search suggestion who turned http://localhost:42000/TEST into http://localhost:42000/test without I paid attention to it.
-- I WRITED "/TEST" but was actually sending "/test" through autocompletion/suggestion
-
-As I'm a serious junior I did the test curl as suggested to go until enfd of the logic
-> curl -v http://localhost:42000/TEST
-Host localhost:42000 was resolved.
-IPv6: ::1
-IPv4: 127.0.0.1
-Trying [::1]:42000...
-Connected to localhost (::1) port 42000
-using HTTP/1.x
-GET /TEST HTTP/1.1
-Host: localhost:42000
-User-Agent: curl/8.14.1
-Accept: */*
-Request completely sent off
- < HTTP/1.1 404
-
-> curl -v http://localhost:42000/test
-Host localhost:42000 was resolved.
-IPv6: ::1
-IPv4: 127.0.0.1
-Trying [::1]:42000...
-Connected to localhost (::1) port 42000
-using HTTP/1.x
-GET /test HTTP/1.1
-Host: localhost:42000
-User-Agent: curl/8.14.1
-Accept: */*
-Request completely sent off
- < HTTP/1.1 200
-
-- Conclusion :
-- I need to be carefuk about what I THINK i send as imput and what I REALLY send as imput.
-- Even for small task using proper tools as insomnia and postman is a good idea as it offer a cleaner testing environemnt set up who may help avoiding small mistakes.
-
-2. **Replace `Thread.currentThread().join()` with a `CountDownLatch` plus a shutdown hook.** Write three lines explaining what each piece does.
-
-- Wanted to have a look at a medium article on CountDownLatch but finally decided that i'm not a pusssy and be brave enough to go for Oracle offcial documentation https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CountDownLatch.html
-- We will read Padjet articles who paraphrase offical doc if we are too stupid to understand the primary source.
-
-> A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.
-A CountDownLatch is initialized with a given count. The await methods block until the current count reaches zero due to invocations of the countDown() method, after which all waiting threads are released and any subsequent invocations of await return immediately. This is a one-shot phenomenon -- the count cannot be reset. If you need a version that resets the count, consider using a CyclicBarrier.
-
-- "plus a shutdown hook"
-
-- I want to clarify what a hook is. I know what hook up is, but i don't think the reviewer want us have sex with the JVM.
-- It seem as its related to fishing but i'm unsure reviewer like this activity
-
-- un hook est une opportunité laissée au programmeur ou à l'utilisateur de modifier le fonctionnement d'un code préexistant.
- https://french.stackexchange.com/questions/6698/traduction-de-hook-dans-un-contexte-de-programmation
-Allow people to ask translation of tech terminology by tech bros. It seem as an hook in this context is something who allow the user to interact dynamicaly with the software when the software is running.
-In our case I think it mean like : Shuting down the server dynamical through a keyboard shortcut as a good old "ctrl+c"
-
-- Struggle to find example, googleed "CountDownLatch to shut down server" nothing semt interesting, no example directly in doc neither. At least nothing i'm smart enough to adapt.
-- Cant go further than initialization : CountDownLatch latch = new CountDownLatch(1);
-- Started to be grumpy, doesnt wanted to pipe my current code to GPT and ask him to correct me so fast.
-- Didn't now what to do, was stuck. Read again the question. It remind me the reviewer said each words of an error is important. We may think each word of reviewer is important as well
-- Copy pasted task 2 : "CountDownLatch` plus a shutdown hook" => https://stackoverflow.com/questions/8897643/setup-shutdownhook-and-exit-application this stuff look promising
-
-- Seem to work. ctrl+c kill the server
-+ Lets try if it work too with a SIGNINT cause its pointless if we cant kill the server from an another Sell
-> ps aux | grep 'java'
-- Retuned too much process
-- ps aux | grep '[g]radlew'
-> ant 3626441 0.6 0.3 3290696 127140 pts/26 Sl+ 18:35 0:04 java -Xmx64m -Xms64m -Dorg.gradle.appname=gradlew -classpath /home/ant/IdeaProjects/1task/gradle/wrapper/gradle-wrapper.jar org.gradle.wrapper.GradleWrapperMain clean run
-- way better : PID is 3626441
-- Checked if our change introduced a regression : /test OK 200 && /TEST NOT FOUND 400. No regression
-> kill -SIGINT 3626441
-- Worked like a charm :)
-
-- BUUUTT used ps aux | grep '[g]radlew' instead of ps aux | grep 'gradlew' I understand is to not having grep process itself in output but even with explaination of regular expression i'm in a frog.
-- Will try to dig until I fully understand cause it anoy me (both taking time to get it AND drifted from initial exercice and get lost with this "distraction")
-- I think i understand [g] mean expression must start with "g" so 'gradlwev' start with "'" not "g" and will not be outputed
-
-EXPLAINATIONS
-
-final CountDownLatch latch = new CountDownLatch(1);
-//
-
-Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
-@Override
-public void run() {
-latch.countDown();
-}
-}));
-
-try (HTTPServer server = new HTTPServer().withHandler(handler)
-.withListener(new HTTPListenerConfiguration(port))) {
-server.start();
-logger.info("Server started on port {} ", port);
-latch.await();
-
-- I take a break cause Nuggets are ready and I need a break :)
-
-- Okay something piss me of run() method has an usage but I don't see where. And it trigger me cause i can't explain the code properly as asked if I don't find this answer.
-> @FunctionalInterface
-public interface Runnable
-Represents an operation that does not return a result.
-This is a functional interface whose functional method is run().
-
-- I ADORE when I undertsand nothing :)
-
-- Okay I think I get it
->final CountDownLatch latch = new CountDownLatch(1);
-// logout or shutdown event
-Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
-- Initialise CountDownLatch + the thread with a shutdownHook
-> latch.await();
-- Stop the thread
-
-- Run() is called ?
-- Cause SIGINT sent by ctrl+C is a POSIX standard who make jvm execute Runtime.getRuntime().addShutdownHook(...) and run() is in the scope so the code ito the scope is executed
-- latch is decreased and fall to 0 so the main is not blocked anymore and end gracefuly
-
-- Just to check if what we read so far is true, lets try to put
->inal CountDownLatch latch = new CountDownLatch(2)
-- We except the program not stop as 2-1 = 1>0
-- Shit. It stop the server anyway. I may have missed something.
-- Okay I mixed : countDown() lock a thread if > 0 but a SIGINT come from OS. The order come from the OS so the porcess >MUST STOP. The addShutdownHook just allow to clean or execute some code before the shutdown ordered by OS but cant ignore the order
-
-3. **Do a log-level audit on your service.** For each `logger.X(...)` call, ask "would I want this in production at this level?" Adjust as needed.
-
-Turned logger.error("Not Found"); into logger.info("Not Found"); As discussed cause 404 is a common issue and a path error doesnt need human attention / to wake you up at 2AM. Reviewer said on side she only eventualy put Errors 5XX as error
-Other log level stay info as I dont have external monitoring or log system. But I noted they wouldnt even probably be info level in a real production context, just ignored
-
-4. **Write a three-line postmortem of the JVM toolchain debug.** What was the actual root cause, what did you try first, what would you do differently next time. This is a tiny exercise but it cements the lesson.
-
-- The root cause was the toolchain the gradle build system saw does not advertise a JAVA_COMPILER capability
-- I puted myself from shell perspective with javac command and as I saw there was a proper jvm with compilation tool installed I drawed conclusions too fast
-
-- 1) Next Time I must read message properly the error message and be humble toward him. NOT REJECTING HYPOTHESIS I HAVEN4T TESTED
-- 2) I need to keep in mind the context/scope i'm working into ( Here : Gradle scope and what Gradle "see")
-
-
-_____________________________________________________________________________________________________________________________________________________________________________
-
-Part 2 – Gradle + repository authentication
-• Configure Gradle to fetch a dependency from:
-• a real private Maven repository or
-• a locally simulated one that requires authentication.
-• No hardcoded secrets in the repository.
-• Use environment variables or ~/.gradle/gradle.properties.
-
-Document:
-• what error you see when auth is wrong,
-• how you identified the root cause,
-• how you fixed it.
-
-- Lets google it!
-> set up maven private repo
-- Well browsing few results but feel as if I start reading what each techs solutions tell about themeself they will kidding me by all saying they are THE marvellous 3 legs unicorns out there.
-- Goodl old dear stack : https://stackoverflow.com/questions/12410423/how-do-i-setup-a-private-remotely-accessible-maven-repository
-- Post from one year ago. Should still be a up to date solution : https://repsy.io/
-- ITS FREE; (very important as we are rats) - Anyway the scope of the exercice is about finding a tool and properly seted up. So, no problem to go "dirty", right ?
-- Started set up : seem quite simple with few click through a GUI. Private repo seed up
-- Get an access token. create a folder no_push/ and a repsy.txt inside to store it . Exclude both from Git
-- Aded both the repo and file to .gitignore. Probably overkill/ redundant but who know it may avoid a typo or a single "ligne of failure" erased by an LLM in the futur. That why i call the directory no_push btw.
-
-
-_____________________________________________________________________________________________________________________________________________________________________________
-
-Part 2 – Gradle + repository authentication
-• Configure Gradle to fetch a dependency from:
-• a real private Maven repository or
-• a locally simulated one that requires authentication.
-• No hardcoded secrets in the repository.
-• Use environment variables or ~/.gradle/gradle.properties.
-
-Document:
-• what error you see when auth is wrong,
-• how you identified the root cause,
-• how you fixed it.
-
-- Lets google it!
-> set up maven private repo
-- Well browsing few results but feel as if I start reading what each techs solutions tell about themeself they will kidding me by all saying they are THE marvellous 3 legs unicorns out there.
-- Goodl old dear stack : https://stackoverflow.com/questions/12410423/how-do-i-setup-a-private-remotely-accessible-maven-repository
-- Post from one year ago. Should still be a up to date solution : https://repsy.io/
-- ITS FREE; (very important as we are rats) - Anyway the scope of the exercice is about finding a tool and properly seted up. So, no problem to go "dirty", right ?
-- Started set up : seem quite simple with few click through a GUI. Private repo seed up
-- Get an access token. create a folder no_push/ and a repsy.txt inside to store it . Exclude both from Git
-- Aded both the repo and file to .gitignore. Probably overkill/ redundant but who know it may avoid a typo or a single "ligne of failure" erased by an LLM in the futur
-
-- Walked a bit around the website and found something interesting : Using Repository with Gradle
-- Well..well..well. Here the kind of problem I hate. Foud a good documentation, matching my tool... but half.
-
-> publishing {
-publications {
-maven(MavenPublication) {
-from components.java
-}
-}
-
- repositories {
- maven {
- url 'https://repo.repsy.io/{MY REPSY USERNAME}/{MY REPOSITORY NAME}'
- credentials {
- username 'MY REPSY USERNAME'
- password 'MY REPSY PASSWORD'
- }
- }
- }
-- That seem as groovy syntax, which is legacy. We should use Kotlin.
-- I was like.. well its easy I give my current gradle file to GPT and the groovy snipset, tell him i'm on graddle 9 + kotlin and he will do some magic.
-- Fail. It just circled in an error hello loop. Had some hope with Claude. Same ki,d of output.
-- I tried to cope few seconds like.. well maybe we can go for obviously depreciated groovy.. So i just have to copy pasta the snipset (okay we are all cowards sometime)
-- jacklackofsurprise for Reddit just puted me back on hearth : https://www.reddit.com/r/groovy/comments/1e0t4ip/is_groovy_usage_growing_or_declining_now_what_is/
-> 2y ago
- I mean, this Subreddit has 3.2k members and the last post before you was 22 days ago.... do the math.
-
-- Anyway the reviewer would probably have noticed I changed the stack. Or not, may have been a good test.. BUT we have to stay honest. Changin a stack for not using my brain is stupid.
-- Lets try using brain
-- Tired
-- Tried last desesperate moove : https://www.codeconvert.ai/groovy-to-kotlin-converter
-- Same output. Silently cried
-- CTRL +f "kotlin" on https://docs.repsy.io/maven/using-repository-with-gradle/ => 0 occurence
-
-- Okay let be honest at this point i'm a bit lost :
-Was my maven repo choice a stupid one ? Liike.. maybe I chosed the first solution who seem free + okay and my mistake is there : mostly the tool choice
-- Maybe its fine and i'm a bit affraid of facing the idea to really understand graddle => kotlin conversion
-
-- Found nothing revelant to my problem
-- Asked GPT something as : OKay, calm down I'm lost let get back to basics, logicaly
-- Checked gradle version
- > gradle -v
- openjdk version "21.0.10" 2026-01-20
- OpenJDK Runtime Environment (build 21.0.10+7-Debian-1deb13u1)
- OpenJDK 64-Bit Server VM (build 21.0.10+7-Debian-1deb13u1, mixed mode, sharing)
-
-------------------------------------------------------------
-Gradle 4.4.1
-------------------------------------------------------------
-
-Build time: 2012-12-21 00:00:00 UTC
-Revision: none
-
-Groovy: 2.4.21
-Ant: Apache Ant(TM) version 1.10.15 compiled on September 29 2024
-JVM: 21.0.10 (Debian 21.0.10+7-Debian-1deb13u1)
-OS: Linux 6.12.73+deb13-amd64 amd64
-
-- 4.4.1... I think we found something :)
-- last version : 9.4.1 (18 Mar 2026) https://endoflife.date/gradle
-- 4.4.1 : (04 Dec 2018) Ended 7 years ago (26 Nov 2018)
-> update gradle linux debian 13
-- Guess what ! https://unix.stackexchange.com/questions/805289/apt-get-install-gradle-puts-a-4-4-1-version-2012-for-java-8-which-cannot-be-i
-> The reason Debian doesn’t ship a newer version of gradle is that packaging Gradle 4.5 or newer requires Kotlin, as well as removing some proprietary dependencies that newer versions of Gradle rely on to build, and doing all of that with properly-aligned versions of all the dependencies is an enormous amount of work. There was progress last year but that seems to have stalled for the time being.
-- Here we go : https://docs.gradle.org/current/userguide/installation.html
-- found something interesting on the gradle website
-> ./gradlew wrapper --gradle-version latest
-
-> ./gradlew wrapper --gradle-version latest
-openjdk version "21.0.10" 2026-01-20
-OpenJDK Runtime Environment (build 21.0.10+7-Debian-1deb13u1)
-OpenJDK 64-Bit Server VM (build 21.0.10+7-Debian-1deb13u1, mixed mode, sharing)
-Downloading https://services.gradle.org/distributions/gradle-4.4.1-bin.zip
-........................................................................
-Unzipping /home/ant/.gradle/wrapper/dists/gradle-4.4.1-bin/46gopw3g8i1v3zqqx4q949t2x/gradle-4.4.1-bin.zip to /home/ant/.gradle/wrapper/dists/gradle-4.4.1-bin/46gopw3g8i1v3zqqx4q949t2x
-Set executable permissions for: /home/ant/.gradle/wrapper/dists/gradle-4.4.1-bin/46gopw3g8i1v3zqqx4q949t2x/gradle-4.4.1/bin/gradle
-FAILURE: Build failed with an exception.
-
-- FUCK YOU STUPID ELEPHANT. I hope your specie will colapse
-- Why the hell latest still 4.1, I guess they just go hit the official debian 13 repo so it change nothing and i'm facing same problem
-
-- Okay i found https://snapcraft.io/gradle
-- But my understanding of flat sandboxing is very low ifk even if its a good path. Kepp calm. Lets keep it simple, stupid : Instal gradle 9 at system vide level
-
-- Sumarize all to GPT and simply get back to KISS : installing graddle 9 through graddle wrapper in my debian 13
-> gradle wrapper --gradle-version 9.5.0
-BUILD SUCCESSFUL in 0s
-
-> ./gradlew build
-> ./gradlew --version : Gradle 9.5.0
-- it start to smell good :)
-
-
-BUILD SUCCESSFUL in 3s
-5 actionable tasks: 5 executed
-Consider enabling configuration cache to speed up this build: https://docs.gradle.org/9.5.0/userguide/configuration_cache_enabling.html
-
-- Finally, now we can follow the Repsy documentation, and adpat the groovy syntax with GPT to adpat to Kotlin
-> CONFIGURE SUCCESSFUL in 42ms
-Task :prepareKotlinBuildScriptModel UP-TO-DATE
-BUILD SUCCESSFUL in 1s
-- YES ! :)
-> ./gradlew publish
-BUILD SUCCESSFUL in 14s
-- !!!!!! :)
-
-> BUILD SUCCESSFUL in 678ms
- 5 actionable tasks: 5 up-to-date
- Consider enabling configuration cache to speed up this build: https://docs.gradle.org/9.5.0/userguide/configuration_cache_enabling.html
-- Lets dig this cache optimzation. It seem funny
-
-- Still I have the feeling, confirmed by GPT that my current build doesnt really download the dependencies from my private repo as requested by the exercice
-- For now its a fail. too bad
-- I wanted firstly to upload every dependencies of the project to my private repo and be 100% independant from Maven central
-- GPT explained it would miss the phylosophy of the exercice. create duplication and make it very weak as it would supose every dependencies maintained by myself. May make sense.
-- I asked him for a minimal Hello World dependencie to validate the exercice
-
-- Its almost midnight and an half so I will slee
-
-For me tomorrow :
-1) read again the two last review. Check if you respected the advices for this 2nd part of logbook. Finally check if mains concepts are understood
-2) Do, publish to the private repo and fetch the Hello World dependencie
-3) Have a look at this potential optimization : ./gradlew publish
-Consider enabling configuration cache to speed up this build: https://docs.gradle.org/9.5.0/userguide/configuration_cache_enabling.html
-
-- Well, the idea of non privately hoesting all the dependencies doesn't please me at all.
-- This article seem to be ok, with me https://dev.to/sumstrm/time-for-secure-dependencies-private-maven-repository-for-java-kotlin-scala-5afl
-
-The two main reasons to use private Maven repositories for your JVM packages:
-
- 1) Secure source for open source dependencies. With 1300+ public repositories and over 24 million Java artifacts, organizations need to control the code they are using - and not allow free entry of untrusted components.
- 2) Distribute internal components. With a wide range of applications that depend on each other, organizations require private repositories to share code between services while keeping artifacts private and secure.
-
-- New plan : We will privately fetch all the dependencies, AND THEN create and fetch privately a homemade dependencie as both aproach make sense in a professional context. More can less (Take that Mr. Van der Rohe)
-
-> 1task:main: Could not find io.fusionauth:java-http:1.4.0.
-Searched in the following locations:
-https://repo.repsy.io/user92137778/project1/io/fusionauth/java-http/1.4.0/java-http-1.4.0.pom
-Required by:
-root project '1task'
-Possible solution:
-Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html
-
-- Pleasant error, we get ride of MavenCentral public repo
-- GPT told directly by itself that i needed to configure repsy ipstream by ading maven proxy to my Repsy repo setting : https://repo1.maven.org/maven2/
-- Worked
-> Download https://repo.repsy.io/user92137778/project1/org/junit/platform/junit-platform-engine/1.10.0/junit-platform-engine-1.10.0.module, took 157 ms
-BUILD SUCCESSFUL in 13s
-
-- From my understanding its a basic proxy who fetch from maven then store on my own private repo so when i build i dont go throught maven server anymore but only my own private repsy
-- Lets read a bit more on it to make the concept fully ours : https://docs.repsy.io/maven/using-repsy-as-proxy/
-- My insight was right
-
-- Well : What I want to test now is : Let say I have a bunch of dependencies, publish them with
-> ./gradlew publish
-- If I ad later another dependencie and do a build without publish again before it should fail as I intentionaly didnt specified any Maven direct fetch as failback
-- Interesting
-> Download https://repo.repsy.io/user92137778/project1/org/junit/platform/junit-platform-engine/6.0.3/junit-platform-engine-6.0.3-sources.jar, took 476 ms
-- It just builed succefully. Well the actual behavior is silthly different from my first mental representation
-- Refreshing My gradle does : Task :prepareKotlinBuildScriptModel wich seem a more complex task than running only
-- Figured out that its an internal task at plugin Kotlin DSL level wich can be read from source code of IDE only. I'm too lazzy to dig that deep now. Maybe later https://github.com/JetBrains/intellij-community
-
-- Well since i refreshed graddle with the litle elephant button I just want to check if ./gradlwev build woukd work same.
-
-> Failed to calculate the value of task ':compileJava' property 'javaCompiler'.
-> Cannot find a Java installation on your machine (Windows 11 10.0 amd64) matching: {languageVersion=21, vendor=any vendor, implementation=vendor-specific, nativeImageCapable=false}. Toolchain download repositories have not been configured.
-- Make sense. I'm at work and my toolchain is Java 25 on my windows machine as its the last LTS
-- I commented in my build.gradle and made a copy/paste with 25 to switch easily. If i notice other change between both machine I would have to create HOME and WORK graddle properties
-// HOME
- //java {
- // toolchain {
- // languageVersion.set(JavaLanguageVersion.of(21))
- // }
- //}
-- Build Passed. endpoint 200 and 404 as esxpected. No regression. Obviously one nexts step would be to learn to automate those unitary testing as its redundant
-
-- Well no.. it was a cached build who passed as the elephant gradle button, keep going to happend.
-- Tweaked a bit my gradle.propertie so I can switch easily to work profile and JDK 25 in two click
-# HOME
-# org.gradle.java.installations.auto-detect=false
-
-# WORK
-org.gradle.java.installations.auto-detect=true
-
-- But we will do it one click instead of 2 by
-- Now we dinamicaly change the version by commenting/uncomenting one area only on code
-> java {
-toolchain {
- languageVersion.set(JavaLanguageVersion.of(property("jdk_version").toString().toInt()))
- }
- }
-- I think its the kind of litles things who seem nothing but avoid shooting your own leg later by keeping clear config
-
-- NOW we have a working project who comile and run + dynamic simple configuration + no regression
-
-- Time to go back to creating my own hello world java dependencie to ad to my Repsy
-- Minimal "hw_dependencie" project done and publish with ./gradlew publish from
-- aded import to the main project
-> implementation("org.example:hw_dependencie:1.0.0")
-- Something went wrong.. but seriously we are so close to a success :
-> Could not find org.example:hw_dependencie:1.0.0.
-Searched in the following locations:
-https://repo.repsy.io/user92137778/project1/org/example/hw_dependencie/1.0.0/hw_dependencie-1.0.0.pom
-If the artifact you are trying to retrieve can be found in the repository but without metadata in 'Maven POM' format, you need to adjust the 'metadataSources { ... }' of the repository declaration.
-- I'm glad I went for trying two solutions for private repository cause it lead to an error i wouldnt even know just with public dependencies pushed in my private repsy
-
->// Publishing only repositories
-repositories {
-maven {
-url = uri(property("repsyUrl") as String)
-credentials {
-username = property("repsyUsername") as String
-password = property("repsyPassword") as String
-}
-}
-}
-}
-
-> // Downloading only repository
-repositories {
-mavenCentral()
-}
-- I puted Repsy in the dowload Repository section of my graddle and not in my upload one. I wasn't clearly aware of the architecture so I copy pasted a bit too fast the Repsy set up from the main project
-- My guts told me about : "It must probably be an indetation / bracket/ Section delimitation issue but it was blur as hell.. Anyway that one of my favorite use case with LLM. Saying you think the logic of your file is only "aproximatly correct" but failed + provide error message
-
-- Server endpoint Work just like a charm.
-
-IMPORTANT PERSONAL NOTE :
-
-- I made a similar mistake as with the JDK version when testing with javac --version and whith the Case sensitivy.
-- I mixed the environement I have at work (gradle 9.3 through wrappler) with the 4.1 who come packaged with APT and Debian 13
-- In a way I'm disapointed of myself cause I keep doing same big mistake : deep lack of stringency
-- But I solved it, and the more I pay lack of stringency by losing time the most i will remember the importance of it
-- Still I think the hability to understand I was wrong (it wasnt only a groovy > kotlin syntax difference issue) and to change my attack angle is a good point.
-- I didn't gave up. Here is the point
-- I then applied it to my graddle.propertie. Being sttrict and using gradle properties for JVM version instead of hardcoded allow to switch easily between Windows and Unix developement environement context
-- I'm glad docker is the next part as its the logical follow up when it come to cross-platfoirm standardized runtime environement. The monkey is coming, dear whale
-
-Bonus : Cache optimization for ./gradlew publish
-
-- https://docs.gradle.org/9.5.0/userguide/configuration_cache_enabling.html
-- 655ms without any optimzation
-- Doc goes straight to the point
-- ad to gradle.properties
-> org.gradle.configuration-cache=true
-- BUILD SUCCESSFUL in 641ms
-- Tried again : 605 ms/ 655 ms.. doesnt seem revelant : project may be too small
-
-- Found something else who look funny to go even faster : Enabling Parallel Configuration Caching
-- Just aded directly to gradle.properties either
-> org.gradle.configuration-cache.parallel=true
-- BUILD SUCCESSFUL in 641ms/ 622 ms, 593 ms, 613 ms
-- even if the message showed up as excepted
->configuration cache entry reused.
-
-- Claude sugested few other ways to go, it seem interesting but I think for now its better to close the task, go for a review and then task 3. Or maybe as a follow up exercice sure
-- Hierarchisation of priorities is important.
-- Still I keep thinking about Maybe I can maybe simulate a big repo with a fake ull of 0101010 10GO dependencie or something
-- Not gona lie i'm a bit frustrated to not see even a litle improve, I wanted to feel as the guys on youtube who say "blablabla my build gies 42% faster now"
-
-
-- Shit I completly forget this part of the REVIEW_PART1_FOLLOWUP.md
-
-## Two smaller notes
-
-**The catch block from growth area 5 is unchanged.**
-You addressed all four explicit exercises, which is fair, and growth area 5 was in the discussion section without a corresponding exercise. So this is not a miss, just a follow-up. The block currently logs at the wrong level, gives no context, and wraps a checked exception in a runtime one for no real reason. When you have ten minutes, take another look at it with the log-level habit you just built in exercise 3 and see what you want to change.
-
-**Lambda style note.**
-Your shutdown hook is written like this:
-
```java
-Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
- @Override
- public void run() {
- latch.countDown();
- }
-}));
+ else if (path.equals("/recorderwebpage")) {
+ Path filePath = Path.of("/home/ant/IdeaProjects/RecorderWebPage/src/www/index.html");
+ byte[] content = Files.readAllBytes(filePath);
+ res.setStatus(200);
+ res.setContentType("text/html");
+ res.getOutputStream().write(content);
+ logger.info("Successful HTTP request");
+ }
```
-
-This is the pre-Java-8 style, which is what most older Stack Overflow answers will show you. Since Java 8 (you are on 21), the idiomatic version is:
-
+Ne fonctionne qu'avec un chemin absolu, pas avec
```java
-Runtime.getRuntime().addShutdownHook(new Thread(() -> latch.countDown()));
-```
-
-Same behavior, much less ceremony. Worth knowing because once you start spotting it, you will see opportunities for it everywhere. It is also a good signal when reading other people's code: if you see anonymous inner classes everywhere in modern Java, the codebase is probably copying patterns from before 2014.
-
----
-1) The catch block from growth area 5 is unchanged
-
-A) The block currently logs at the wrong level
- - Changed log level from info to error as
- - I thought Info was fine as in my case an interuption would have no difference with a graceful latc hook trigger.
- - If i have understood well, its an error level cause in production context the rough interuption can lead to a cascade of problem (request pending in pool causing a timeout, a framework responding weirdly and lead to a crash.)
-
-B) The log give no context
-- Sure, here my mistake was to look for something funny to write. I get myself distracted a bit
-- Thought a bit about what the hell i can put there. Well we cat a catch (InterruptedException e)
-- So the goal is to know thanks to the error that server wasn't shut down gracefully. As said above, will be important to investigate an issue in a real (and complex) context
-> Server interrupted while waiting for shutdown latch
-
-C) The catch block wraps a checked exception in a runtime one for no real reason
-
-- This one will ask me a bit of thought. Lets be fully honest so far I didn't really dig try catch and exception handling. Inteliji proposed autocmplete and i approved.
-- Better late than nothing. Today we will dig the subject. I started to discuss a bit with Claude to have a good understanding through question/ ask for criticize reformulation of my understanding
-
-- The caller of a fonction and the function itself sign a contract. The contract say what are autorized imput and expected output
-- "throws" clause depict says that a given type of exception isnt handled there directly and transfe the responsability of error handling to the caller (propagation). The main throw driectly error to JVM who kills the process
-- "Catch" stops the error propagation and handle the error right there
-
-- SHIT I compiled the test dependencie with a jvm 25 at work :)
-> 1task:main: Dependency resolution is looking for a library compatible with JVM runtime version 21, but 'org.example:hw_dependencie:1.0.0' is only compatible with JVM runtime version 25 or newer.
-- Of course a java program compiled in JVM X can't be compiled later in a previous JVM version
-- I downloaded a JVM 25 for this project through intelijii > Project structure > SDK. Went for Amazon koreto just cause I remmeber my colleague said they fix fast and are very active int devlopment
-- Complied just fine
-
-- Lets go back to our java gestion of errors
-- Try/Catch block act as a kind of watchdog where you monitor a block of code surrounded by "if" and take action accordingly if an error occur. You describe the handle erro logic into the "catch"
-
-> } catch (InterruptedException e) {
-logger.info("It seem as something fucked up!");
-throw new RuntimeException(e); // ← ici
-}
-- The problme is by Wrapping an InterruptedException (specific) exception into a more general exception RuntimeException we only make error less specific/revelant fro debugging
-- In Java each exceptions are class herithing from each others. they can be unchecked or checked
-- InterruptedException is checked and RuntimeException is unchecked, so the code will compile even if we dont do something to handle the exception. That why the IDE suggested this trick, to simplify and avoid botherring with the exception
-- Note that wrapping exception may make sense in cas of lambda expression (heheheh the next topic..) or in case of an interface who doesnt allows to throws exception
-- As public static void main(String[] args) throws InterruptedException declare throws InterruptedException we can completly let the error propagation going
-- Last but not list we avoiding overlooggin as the fix turn
-> java.lang.RuntimeException: java.lang.InterruptedException
-at org.example.Main.main(Main.java:47)
-Caused by: java.lang.InterruptedException
-at ...
-- Into...
-> java.lang.InterruptedException
-at org.example.Main.main(Main.java:47)
-- Seem nothing, but once again in a big scale production context it can save yoir mental health at 3.AM
-
-- GOOOD : We have a good and a bad new : Good is the cache seem to work !
-> Parallel Configuration Cache is an incubating feature.
-Calculating task graph as no cached configuration is available for tasks: build
-BUILD SUCCESSFUL in 8s
-
-VS, while compiling again right after :
-> Reusing configuration cache.
-BUILD SUCCESSFUL in 659ms
-
-- The bad new was once again my lack of stringency. I read log too fast. Well, at least we get the """big brain""" optimization satisfaction feeling :)
-
-2) Lambda style note
-- Changed shutdown hook for lambda expression syntax
-> Runtime.getRuntime().addShutdownHook(new Thread(() -> latch.countDown()));
-
-- Fine, the name is cool, but why ?
-- Lambda allow way more concise code
-- In Java everything excepting instructions and primitives tyoes are objects
-- So you cant define a methode outside a class or pass this function as method parameter withouth anonymous inner classes. A whole class for a single behaviour
-- Was boilerplate
-- Lambdas expressions (also named enclosures or anonymous functions, allow to pass as parameters a set of instructions
-- A lambda always implemnt a fonctional interface with only one abstract method
-> https://www.jmdoudoux.fr/java/dej/chap-lambdas.htm
-
-- Everything compile fine. I'm happy as I was able to do task 2 from A to Z in a not too long time. Obviously speed isn't the much important at all but still
-- Note for reviewer ; Don't hesit to force me showing deep understanding of concepts used, explaining them etc. I'm a bit affraid of my own lazyness if I'm not push to :(
-
-- Final check. Server work as a charm
-
-- Well, in any cases.. Midnight and half.. Good night ! :)
-
-- I'm just thinking (late night thinking) ,I may probably have not only loaded credential from gradle properties to avoid having them hardcoded but also loaded them from a hash. to not have them in plain text anywhere.. . idk not very clear on my mind its maybe even note possible. Hope rewiever will have some insights
-
-
-- Guess who missed an important thing about the tesk :
- Document:
- • what error you see when auth is wrong,
- • how you identified the root cause,
- • how you fixed it.
-
-- As its just worked fine from firrst time i sisnt produce auth going wrong
-- Lets add some properties in gradle.properties to cover all the case properly and see if we got fifferents messages by replacing the correct properties ones by one
-> repsyUrl_WRONG
->FAILURE: Build failed with an exception.
-
-* What went wrong:
->Configuration cache state could not be cached: field `classpath` of task `:compileJava` of type `org.gradle.api.tasks.compile.JavaCompile`: error writing value of type 'org.gradle.api.internal.artifacts.configurations.DefaultResolvableConfiguration'
-Could not resolve all files for configuration ':compileClasspath'.
-Could not find io.fusionauth:java-http:1.4.0.
-Searched in the following locations:
-https://repo.repsy.io/user92137778/project1WRONG/io/fusionauth/java-http/1.4.0/java-http-1.4.0.pom
-- The build fail cause the wrong repo URL lead to try to fetch the dependcies from a repo who doesnt exist / where those dependencies arent reachable
-- Without required dependencies build fail
-> repsyUsername_WRONG
->BUILD SUCCESSFUL in 737ms
-- Interesting, with the correct url but wrong username.. the project build succefully
-> Task :run
-10:18:21.385 [main] INFO org.example.Main -- Fuck off procrastination!
-1777537101409 Starting the HTTP server. Buckle up!
-1777537101419 HTTP server listening on port [42000]
-1777537101419 HTTP server started successfully
-10:18:21.419 [main] INFO org.example.Main -- Server started on port 42000
-[###########....] 75% EXECUTING [24s]
-- Wait..it buiuld and run.. it surpised me first
-- But ad an idea : Probably whhen you fetch dependencies from a maven repository you are on read only with no write access. so fetching dependencies is fine cause username is used to authentificate only and publish some
-- Lets dig the hypotesis
-> Could not get resource 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'.
-Could not GET 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'. Received status code 401 from server:
-- Here we go. After changing the username auth and added a dependencie then to the build.gradle build fail.
--
-- WAITTT. The insight on read/write permission may be wrong cause I just noticed a folder named "extternal libraries" in my inteliji. So with already fetched dependencies, graddle just grab them from the local copy he made previously
-- Once fetched the .jar are copied locally
-- Lets test it by viiolently erase few jar from the folder
-
-
- > Could not get resource 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'.
-Could not GET 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'. Received status code 401 from server:
-- It still works, only the new dependencie cause the same error
-- Hum maybe i'm wrong and the jar in external library folder isnt a fallback for already feyched dependency. Or maybe.. maybe it is but same message come cause something is weirdly cached somewhere
-- Lets try to be violent again : Invalidate casche and restart + all boxes checked
-
- > Could not download logback-classic-1.5.32.jar (ch.qos.logback:logback-classic:1.5.32)
-Could not get resource 'https://repo.repsy.io/user92137778/project1/ch/qos/logback/logback-classic/1.5.32/logback-classic-1.5.32.jar'.
-Could not GET 'https://repo.repsy.io/user92137778/project1/ch/qos/logback/logback-classic/1.5.32/logback-classic-1.5.32.jar'. Received status code 401 from server:
-Could not download jackson-annotations-2.21.jar (com.fasterxml.jackson.core:jackson-annotations:2.21)
-Could not get resource 'https://repo.repsy.io/user92137778/project1/com/fasterxml/jackson/core/jackson-annotations/2.21/jackson-annotations-2.21.jar'. Could not GET 'https://repo.repsy.io/user92137778/project1/com/fasterxml/jackson/core/jackson-annotations/2.21/jackson-annotations-2.21.jar'. Received status code 401 from server:
-- YESSS it was cause of cache. Erased .jar locally destroyed the fallback
-- but the weird thing is I did a ./gradlew publish who was writed as success before rebuilding. So the new dependencie failed silently to be uploaded on repo
-- Same after invalidate cache. I may probably be fool.. Like.. no access to repo to upload, the build fail as expected but the ./gradlew publish JUST SUCCESS/FAILL SILENTLY ?!
-- Asked Claude. He said its possible. okay.. Gave me some good idea : testing with ./gradlew publish --info or --debug flags
-- Honestly.. ./gradlew publish --debug was just too long to read. I ctrl+f "error, not found,notfound" 0 iteration for each of the.
-- I gave the entire log to Claude
-- He pointed somethin
-> Task :publish UP-TO-DATE
-2026-04-30T10:59:25.418+0200 [INFO] [org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter] Skipping task ':publish' as it has no actions.
-- No halucination its indeed in logs
-- He said : Gradle never attempted to publish anything. The configuration cache had stored a previous successful build state and simply reused it, skipping the task entirely. No HTTP request was made to Repsy — no auth failure, no success, just nothing.
- Key takeaway: the silence wasn't a Maven Publish plugin error-handling issue. It was the configuration cache short-circuiting the whole task. Before concluding an error is "silent", always check whether the task actually ran — UP-TO-DATE in the logs means Gradle skipped it entirely.
-- I protested and said i invalidated cache and restart?.. but it was inteliji cache and not gradle cache. Imixed both :(
-- EVEN ./gradlew publish --no-configuration-cache --info
-- GAVE ME : Skipping task ':publish' as it has no actions.
-- ./gradlew publishMavenPublicationToMavenRepository --no-configuration-cache
-- Finally failed. At this point I was very pissed off but was only the begining
-- ./gradlew tasks --no-configuration-cache found only 2 things :
-> publishMavenPublicationToMavenLocal
-publishToMavenLocal
-
-- Tired i gave to Claude my gradle. And guess what ?
-- I forget to puth credential in publishing block. They was only in reprository. All this time lost cause i didn't verified step by step and logicaly
-- did again ./gradlew publish and finally failed as expected
-> Could not resolve org.projectlombok:lombok:1.18.46.
-Could not get resource 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'.
-Could not GET 'https://repo.repsy.io/user92137778/project1/org/projectlombok/lombok/1.18.46/lombok-1.18.46.pom'. Received status code 401 from server:
-- And worked succefuly with the corrct username
-> BUILD SUCCESSFUL in 13s
-
-> repsyPassword_WRONG
-- Build and run success cause dependencies was fetched from preious build. As excepted
-- Erase some localy previously fetched jar
-> Exception in thread "main" java.lang.NoClassDefFoundError: ch/qos/logback/core/joran/spi/JoranException
-at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
-at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:2985)
-- Failed as expected as there is no local fallback anymore and repo password wrong doesnt allow to go for the classic way
-- The important thing is when you run, log primarily only say : dependency X, Y, Z, not found. Which is true BUT you have no imediate clue about the auth root cause problem
-
-- The fix was always same : put the correct propertie back by clicking on te litle elephant to resync and build again
-
-Some last words to ad after this task
-
-- I must be logical, review where it can fail. From simple cause to more tricky ones
-- I went too fast exploring cache when it was all about a misundertsanding on how gradle Repo and publish task works
-- I need to be careful, calm down when I'm excited and take a step back to see the whole picture. Maybe a schema had helped
-
-- I can be proud of myself cause despite clearly under optimized way.. i manage to find one way
-
-- VERY CRITICAL NOTE (Follow up v0)
-
-- Reviewer saw i pushed my gradle.properties. that a huge mistake everything was leaked
-- Here we see the lack of production experience
-- THE WORST PART IS I THOUGHT ABOUT IT :(
-- - I'm just thinking (late night thinking) ,I may probably have not only loaded credential from gradle properties to avoid having them hardcoded but also loaded them from a hash. to not have them in plain text anywhere.. . idk not very clear on my mind its maybe even note possible. Hope rewiever will have some insights
-- Its loged above..
-- Wasnt until the end of thought provcess. I'm faulty here cause i get that something was strange
- Edited5m
-And It clicked only when i saw your message, senior told me, its fine its not real prod but in real life push a gradle.example.properties only
-- So.. erased gradle.propertie. recreated excluded from git and pushed a sample
-- Changed my Repsy credentials
-
-- I'm too h&appy, too excited to do my best, I must calm down to avoid stupid mistakes? Its important :)
-
-
-
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-
-Post review follows ups :
-
-1) Security
-
-- Changed repsyUrl_WRONG, repsyUsername_WRONG and repsyPassword_WRONG values to safes placeholder
-- Changed repsyUsername and repsyUsername from Repsy account credential scope to specific repsy reprository scope
-- changed names from repsyUsername and repsyPassword to repsyRepoUsername and repsyRepoPassword for better scope clarity
-- Tested by erasing all graddle cache
-> rm -rf ~/.gradle/caches
-rm -rf ~/.gradle/daemon
-rm -rf ~/.gradle/native
-rm -rf ~/.gradle/wrapper
-- Went fine
-
-2) Robustness
-
-- added mavenCentral() back as a fallback option to fetch dependencies
-> > rm -rf ~/.gradle/caches
-rm -rf ~/.gradle/daemon
-rm -rf ~/.gradle/native
-rm -rf ~/.gradle/wrapper
-- - Went fine
-
-
-
---------------------------------------------------------------------------------------------------------------------------------
-
-Part 3 – Dockerize properly
-• Write a Dockerfile that:
-• builds the app,
-• runs it as a non-root user,
-• does not create OS users at container startup.
-• Use docker compose to run the app.
-
-Deliverable:
-• docker compose up --build works from a clean state.
--
-- Went At the project root
-> docker init
-> docker compose up --build
--
-> #11 ERROR: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::sgh1qtzfbrodfm26ntodg31vn: "/pom.xml": not found
-#12 [deps 3/5] COPY --chmod=0755 mvnw mvnw
-#12 ERROR: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::sgh1qtzfbrodfm26ntodg31vn: "/mvnw": not found
-#15 ERROR: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::sgh1qtzfbrodfm26ntodg31vn: "/pom.xml": not found
-#16 [deps 4/5] COPY .mvn/ .mvn/
-#16 ERROR: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::sgh1qtzfbrodfm26ntodg31vn: "/.mvn": not found
-failed to solve: failed to compute cache key: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::sgh1qtzfbrodfm26ntodg31vn: "/pom.xml": not found
-- "/pom.xml": not found "/mvnw": not found "/.mvn": not found
-- Files arent into the docker context
-- Strange cause i builded at the root of project
-- Shit, "pom.xml": not found "/mvnw": not found "/.mvn": not found" ... the docker init is for maven build not gradle :)
-- No option for graddle with docker.. we will have to use brain :)
-- I remmeber blurrly that I heard about build stage and optimization but I dont mind for now lets just make something working
-- Stack. home sweet home https://stackoverflow.com/questions/61108021/gradle-and-docker-how-to-run-a-gradle-build-within-docker-container
-- I found this as a template to begin with
-- # Source - https://stackoverflow.com/a/61131308
-# Posted by java12399900, modified by community. See post 'Timeline' for change history
-# Retrieved 2026-05-02, License - CC BY-SA 4.0
-
-# using multistage docker build
-# ref: https://docs.docker.com/develop/develop-images/multistage-build/
-
-# temp container to build using gradle
-FROM gradle:5.3.0-jdk-alpine AS TEMP_BUILD_IMAGE
-ENV APP_HOME=/usr/app/
-WORKDIR $APP_HOME
-COPY build.gradle settings.gradle $APP_HOME
-
-COPY gradle $APP_HOME/gradle
-COPY --chown=gradle:gradle . /home/gradle/src
-USER root
-RUN chown -R gradle /home/gradle/src
-
-RUN gradle build || return 0
-COPY . .
-RUN gradle clean build
-
-# actual container
-FROM adoptopenjdk/openjdk11:alpine-jre
-ENV ARTIFACT_NAME=pokerstats-0.0.1-SNAPSHOT.jar
-ENV APP_HOME=/usr/app/
-
-WORKDIR $APP_HOME
-COPY --from=TEMP_BUILD_IMAGE $APP_HOME/build/libs/$ARTIFACT_NAME .
-
-EXPOSE 8080
-ENTRYPOINT exec java -jar ${ARTIFACT_NAME}
-
-- Exercice says : runs it as a non-root user, does not create OS users at container startup.
-- Unfortunately the current one run as root
-- Lets try to make it work as root first, then we will improve
-- Moved from openjdk for koretto as open JDK doesnt provide JDK 25. Stayed with alpine as its suposed to be light +fast
-- At this point I had a basic Dockerfile working but Root user and all. Sent the Dockerfile. GPT said it was bullshit: redundant build, run as root.. and proposed a better version
-> failed to solve: failed to compute cache key: failed to calculate checksum of ref o3mleuczvsuvlhg4001owiqmx::vmipy2cda3d6cz1tevw6mqosd: "/settings.gradle": not found
-- Changed COPY build.gradle settings.gradle for $APP_HOME/ COPY build.gradle.kts settings.gradle.kts $APP_HOME/ to match the file name
-> ✔ Image project1-server Built 53.1s
-✔ Network project1_default Created 0.0s
-✔ Container project1-server-1 Created 0.1s
-Attaching to server-1
-server-1 | no main manifest attribute, in app.jar
-server-1 exited with code 1
-- Weird cause I have both
-plugins
-{
- id("java")
- id("application")
- id("maven-publish")
- }
-- AND
-application {
- mainClass.set("org.example.Main")
- }
-- Docker should find the entry point then
-- Oh shit yes I remmember about this. My jar isnt a Fat/uber Jar so we are missing few things at compilation time
-- My concentration level started droped so hard
-
-- WE ARE BACK
-- Added shadow plugging to my build.gradle.kts will allow me to compile my fat jar. This is necessary for two reasons :
-1) A fat jar is a jar who contain all dependencies needed at runtime. It allow to run the application then in one line
-> java -jar myapplication.jar
-
-> When Not to Use Uber-JAR?
-There are some situations where it is not advantageous to use an Uber-JAR, especially in containerised environments. When developing a web application using the Uber-WAR solution of Spring Boot,for example, a single change in your application code results in the build of the Uber-WAR file that is placed inside a Docker image and transferred to the Container repository so that the cloud environment can pick up the change. This means that a single change results in the recreation of a file that is typically around 50 to 100 Mb and that needs to be transferred over the network. And in almost all situations, there is no change to the application runtime and thus there was no need to repackage that.
-- Okay I googled a bit ( and wanted a critical external point of view as i'm paranoîac when it come to potential LLM misslead
-- seem as its not optimized at all
-- Layered jar will be a think to look at, maybe as a follow up. I will leave it for later or reviewer diescretion cause i feel as if I try now i will lost myself. Let keep it simple first
-- shadow also read
-application {
- mainClass.set("org.example.Main")
- }
-- Shadow not only import necessary dependencies at runtime but also create the MANIFEST.MF wich contain metadata. Especially the entry point of the java program
-- Thanks to this when java -jar app.jar is performed, the JVM open the Jar and find the Main-Class and call it main()
-- To do so we just need on command
-> ./gradlew shadowJar
-- Went fine and fat jar was created
-> BUILD SUCCESSFUL in 8s
-2 actionable tasks: 2 executed
-Configuration cache entry stored.
-- Let test locally
-> java -jar build/libs/1task-1.0-SNAPSHOT-all.jar
-- Shit JRE missmatch version
-> Error: LinkageError occurred while loading main class org.example.Main
-java.lang.UnsupportedClassVersionError: org/example/Main has been compiled by a more recent version of the Java Runtime (class file version 69.0), this version of the Java Runtime only recognizes class file versions up to 65.0
-- Lets install the last 25 LTS koretto system wide, anyway 21 will be depreciated soon, better to go for last LTS : https://docs.aws.amazon.com/corretto/latest/corretto-25-ug/generic-linux-install.html
-> 1task-1.0-SNAPSHOT-all.jar
-> 23:13:26.603 [main] INFO org.example.Main -- Fuck off procrastination!
-1777583606620 Starting the HTTP server. Buckle up!
-1777583606629 HTTP server listening on port [42000]
-1777583606630 HTTP server started successfully
-23:13:26.630 [main] INFO org.example.Main -- Server started on port 42000
-- Worked + tested endpoint
-
-> docker build -t project1 .
-- -t = give a tag /name to image to avoid having only an idea/ "." indicate position of Dockerfile. the current directory in our case
-- Build O.K
-- lets check
-> docker images
-> project1:latest 9c6fb5fbf08b 376MB 0B
-- Now that we have a image who doesnt use root anymore, lets try to run it
-> docker run -p 43000:43000 project1
-docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: unable to retrieve OCI runtime error (open /run/containerd/io.containerd.runtime.v2.task/moby/e0034c1efecc2c0413842168b0250f472df585a2a205c1c01263636b140d688a/log.json: no such file or directory): exec: "nvidia-container-runtime": executable file not found in $PATH
-- Shit i probably fucked my nvidia drivers long time ago and run on intel CPU for a while without noticing
-- Lets check
-> nvidia-smi
-> -bash: nvidia-smi: command not found
-- Here we go lets try to install again properly
-- Didnt worked and i'm a bit too exausted to go deep there
-> echo $XDG_SESSION_TYPE
-- I'm using Wayland as display server, not X11 and the config of nvidia seem to be a pain in ass. I remember now. I switched a while ago from X11 cause blablabla i read it was more modern etc.. then saw nvidia doesnt worked anylore an switched to cpu
-- In some way I breaked the rule as I should learn to set up wayland and nvidia runtime together, BUT GPU isnt needed for this container...so
-- i switched back default docker runtime from nvidia to runc
-> sudo nano /etc/docker/daemon.json
-- restart docker daemon
-> sudo systemctl restart docker
-
-> docker run -p 43000:43000 project1
-22:01:28.266 [main] INFO org.example.Main -- Fuck off procrastination!
-1777586488287 Starting the HTTP server. Buckle up!
-1777586488307 HTTP server listening on port [42000]
-1777586488307 HTTP server started successfully
-22:01:28.307 [main] INFO org.example.Main -- Server started on port 42000
-- IT WORKED :) Hum wait lets check if it really does..
-- Tested.. wait it doesnt when i try to hit the api endpoint as i have an error in browser tab
-> This site can’t be reached
-- I'm fool i mapped port as following : -p 43000:43000
-- But inside my app port is 42000
-- :
-- So i need to go for : 43000:42000Fixed Part2
-- added back mavenCentral() as fallback
-> docker run -p 43000:42000 project1
-- WORKED.. FOR REALLL !!
-- Worked same with compose
-> docker compose up
-- Added : image: project1:latest in compose as a matter of clarity so no need to read all the Dockerfile to get name of image builded
->docker ps -a
-CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
-972316f48fdd project1:latest "java -jar app.jar" 26 seconds ago Up 25 seconds 43000/tcp, 0.0.0.0:43000->42000/tcp, [::]:43000->42000/tcp 1task-app-1
-
-- Lets break down docker core concepts
-- Dockerfile is used to build a Docker image, which can then be launched with docker run. compose.yaml allows you to configure and launch multiple Docker images in a single command, making it the standard tool for multi-container projects and scaling.
-
-- We will understand and explain each word of our Current Dockerfile to be sure everything is clear
-
-# ===== BUILD STAGE =====
-# Defines the first stage of the multi-stage build, named "build".
-# Uses the official Gradle 9.5.0 image with JDK on Alpine (lightweight Linux).
-FROM gradle:9.5.0-jdk-alpine AS build
-
-# Declares an environment variable APP_HOME pointing to the app's working directory.
-ENV APP_HOME=/usr/app
-
-# Sets / create if not exist /usr/app and make it as the current working directory for all subsequent instructions.
-WORKDIR $APP_HOME
-
-# Copies only the Gradle configuration files from the host machine into the container.
-# Doing this first allows Docker to cache this layer and avoid re-downloading
-# dependencies if these files have not changed.
-COPY build.gradle.kts settings.gradle.kts $APP_HOME/
-
-# Copies the gradle/ folder (containing the Gradle wrapper) into the container.
-COPY gradle $APP_HOME/gradle
-
-# Copies the rest of the project (sources, resources, etc.) into the container.
-COPY . .
-
-# Runs the Gradle task that cleans old artifacts, then compiles and packages
-# the application into a fat/uber JAR (shadowJar bundles all dependencies).
-# --no-daemon avoids starting the Gradle daemon, suitable for CI/container environments.
-RUN gradle clean shadowJar --no-daemon
-
-
-# ===== RUNTIME STAGE =====
-# Defines the second stage, the final runtime image.
-# Starts fresh from Amazon Corretto 25 (Amazon's JDK distribution) on Alpine.
-# This image is lighter because it contains neither Gradle nor the source code.
-FROM amazoncorretto:25-alpine-jdk
-
-# Re-declares the APP_HOME environment variable (ENV values do not carry over between stages).
-ENV APP_HOME=/usr/app
-
-# Sets /usr/app as the current working directory again.
-WORKDIR $APP_HOME
-
-# Copies only the JAR produced by the "build" stage into the final image,
-# renaming it app.jar. The *.jar wildcard matches the shadowJar output file.
-COPY --from=build /usr/app/build/libs/*.jar app.jar
-
-# Creates a system group "appgroup" and a system user "appuser" belonging to that group.
-# Done in the Dockerfile (not at startup) so the user exists inside the image itself.
-# The -S flag marks the user/group as a system entity rather than a human user. Without it, adduser creates a full user with a password, a home directory in /home/appuser, and a login shell. With -S, Alpine automatically strips all of that down to the bare minimum — no password, no real home directory, no login shell, no SSH access — just enough for a process to run under its identity.
-RUN addgroup -S appgroup && adduser -S appuser -G appgroup
-
-# Switches the current user to "appuser" for all subsequent instructions.
-# The container will therefore run without root privileges.
-USER appuser
-
-# Documents that the application listens on port 43000.
-# This is an indication for Docker and third-party tools — it does not open the port by itself.
-EXPOSE 43000
-
-# Defines the default command executed when the container starts:
-# runs the JAR with the JVM via "java -jar app.jar".
-# ENTRYPOINT (unlike CMD) cannot be easily overridden,
-# making it suitable as the fixed and primary entry point of the application. Its an architecture decision who bring clarity about the container exact usecase
-ENTRYPOINT ["java", "-jar", "app.jar"]
-
-- - Almost 1 AM, lets sleep a bit we will build optimization tomorrow :)
-
-- Finally we go to discuss with Claude a bit to know if some optimisation can be done to speed up the amount of time taked by our docker build
-
-- First lets check how much time our build take now
->#5 FROM gradle:9.5.0-jdk-alpine DONE 0.0s
-#6 FROM amazoncorretto:25-alpine-jdk DONE 0.0s
-#7 WORKDIR /usr/app (build) CACHED
-#8 WORKDIR /usr/app (stage-1) CACHED
-#10 COPY build.gradle.kts settings... DONE 0.0s
-#11 COPY gradle DONE 0.0s
-#12 COPY . . DONE 0.1s
-#13 RUN gradle clean shadowJar DONE 34.4s ⬅️ 96% of time
-#14 COPY --from=build *.jar DONE 0.0s
-#15 RUN addgroup && adduser DONE 0.2s
-#16 exporting image DONE 0.0s
-
-real 0m35.612s
-
-> docker ps -a
-> docker rmi
-> docker system prune -a --volumes
-
+ Path filePath = Path.of("/home/ant/IdeaProjects/RecorderWebPage/src/www/index.html");
+ ```
+Passer par gradle.properties et build.gradle.kts pour rendre au moins le chemin absolu paramétrable ne mitige pas le problême
-- wWthout any cache, so it mean from my unde
-> #5 FROM gradle:9.5.0-jdk-alpine DONE 6.0s ← image pull
-#7 WORKDIR /usr/app (build) DONE 0.2s
-#8 COPY build.gradle.kts settings... DONE 0.0s
-#9 COPY gradle DONE 0.0s
-#10 COPY . . DONE 0.1s
-#11 RUN gradle clean shadowJar DONE 35.0s ← 80% of total time
-#12 FROM amazoncorretto:25-alpine-jdk DONE 7.7s ← image pull
-#13 WORKDIR /usr/app (stage-1) DONE 0.1s
-#14 COPY --from=build *.jar DONE 0.0s
-#15 RUN addgroup && adduser DONE 0.2s
-#16 exporting image DONE 0.0s
+ //environment("PAGE_ABSOLUTE_PATH", project.findProperty("recorder_full_path")?.toString() ?: "/chemin_manquant")
+ recorder_full_path=/home/ant/IdeaProjects/RecorderWebPage/src/www/index.html
-real 0m43.683s
-
-- I don't use a full JDK, a JRE would be enough but amazon only provide JDK images on docker hub
-- Claude suggested jlink, I already hearded about is. Colleague said its powerful once
-- Jlink is basically a tool taht allow to create a fully tailored JRE, taking only dependencies needed by a project to get smallest possible runtime
-- lets try to go for jlink
-
-> jdeps --multi-release 25 \
---ignore-missing-deps \
---print-module-deps \
-build/libs/*.jar
-- Analyzes the JAR and outputs exactly the list to paste into --add-modules
-- Wondered why we have to specify Java version
-- A JAR can contain multiple versions of the same code for different Java versions.
---multi-release 25 tells jdeps : "analyze this JAR as if it runs on Java 25". Then we are sure see the real dependencies of our app as it will actually run in production
-- Without this flag, jdeps would analyze an older version of the code and could miss required modules
-
-> 12:45Claude responded: Key observation — gradle shadowJar dropped from 34s → 11s because dependencies were already cached by the previous step.#8 FROM gradle:9.5.0-jdk-alpine DONE 0.0s (cached locally)
-#9 FROM alpine:3.23 DONE 0.0s (cached locally)
-#10 WORKDIR /usr/app (build) CACHED
-#11 FROM amazoncorretto:25-alpine-jdk CACHED
-#12 WORKDIR /usr/app (stage-2) CACHED
-#14 COPY build.gradle.kts settings... DONE 0.0s
-#15 COPY gradle DONE 0.0s
-#16 RUN gradle dependencies DONE 34.7s ← deps download
-#17 RUN apk add binutils DONE 1.1s
-#18 RUN jlink DONE 9.9s
-#19 COPY --from=jre-build /jre-custom DONE 0.1s
-#20 COPY src DONE 0.0s
-#21 RUN gradle shadowJar DONE 11.3s ← compile only
-#22 COPY --from=build *.jar DONE 0.0s
-#23 RUN addgroup && adduser DONE 0.2s
-#24 exporting image DONE 0.2s
-
-real 0m48.492s
-
-- Lets simulate a change in source code
-> echo "// test" >> src/main/java/org/example/Main.java
-
-> #8 FROM gradle:9.5.0-jdk-alpine DONE 0.0s (cached locally)
-#9 FROM amazoncorretto:25-alpine-jdk DONE 0.0s (cached locally)
-#10 FROM alpine:3.23 DONE 0.0s (cached locally)
-#12 WORKDIR /usr/app (build) CACHED
-#13 COPY gradle CACHED
-#14 COPY build.gradle.kts settings... CACHED
-#15 RUN gradle dependencies CACHED ← deps untouched
-#16 COPY src DONE 0.0s ← code changed
-#17 RUN gradle shadowJar DONE 7.4s ← compile only
-#18 WORKDIR /usr/app (stage-2) CACHED
-#19 RUN apk add binutils CACHED
-#20 COPY --from=build *.jar CACHED
-#21 RUN jlink CACHED
-#22 COPY --from=jre-build /jre-custom CACHED
-#23 RUN addgroup && adduser CACHED
-#24 exporting image DONE 0.0s
-
-real 0m8.667s
-
-- OPTIMIZATION RESULT
-
-From scratch (no cache) : 48s → unchanged (first build always costs)
-Code change rebuild : 36s → 8.7s (-76%)
-
-- Okay I must completly admit from jlint it was mostly "full" vibecoding. I just wanted an optimized stuff which build faster than my basic one.
-- There was a bit of error as Claude miss that alpine didnt endebed some tools. Its something I already saw on the past
-- Was solved in a few iteration
-- I also said to him to not pass credentials to the image as clear text
-- But I mixed what a secret mean, cause secret seem to be in clear inside RAM, the purpose is to not write them at anytime into image layers or final image
-- Now that the build works and that the server serve as expected i will break down the new Dockerfile lines by lines as I did for the previous one
-- This way i will either stop to feel guilty for vibecoding too much and take thoses new concepts as mine
-- I keep first Dockerfile but comment it, will be easier to keep track than only have it into logbook
-- Aditional thought about reviewer comment on task2 about optimization : I think for Docker build, optimization is important faster than for java build/gradle itself. It fastly save minutes and my zoomers brain hates minutes break so its better to shorten then while debugging
-
-- I maybe not have vibcoded that much the optimization part :(
-- I catch the main idea of multi stage Dockerfile
-- A bit like a rocket who go to space release one stage after one other when they are not needed. Only last FROM is kept for final image
-- This way we can use heavy tool WHILE having the minimal size image for runtime / payload reach orbit
-
-# ===== BUILD STAGE =====
-# Defines the first stage named "build".
-# Uses the official Gradle 9.5.0 image with JDK on Alpine Linux.
-# This stage is responsible for compiling the application and producing the JAR.
-# A stage start with FROM and contain layers (a bit as objects contains fields)
-FROM gradle:9.5.0-jdk-alpine AS build
-
-# Declares an environment variable APP_HOME pointing to the app's working directory.
-ENV APP_HOME=/usr/app
-
-# Sets /usr/app as the current working directory for all subsequent instructions in this stage.
-WORKDIR $APP_HOME
-
-# Copies only the Gradle configuration files into the container.
-# Done before copying source code to create a separate Docker layer for dependency resolution.
-# If these files don't change, Docker reuses this cached layer on rebuild.
-COPY build.gradle.kts settings.gradle.kts $APP_HOME/
-
-# Copies the Gradle wrapper folder into the container.
-# Also isolated in its own layer for caching purposes.
-COPY gradle $APP_HOME/gradle
-
-# Downloads all project dependencies and caches them.
-# --mount=type=secret: injects gradle.properties at build time only — it is never written
-# into any image layer, so credentials (repo URL, username, password) are never extractable
-# from the final image even with docker history or docker inspect.
-# Mount secret named gradle_props at /usr/app/gradle.properties. Secret exist only during RUN command execution
-
-
-# --mount=type=cache: mounts /root/.gradle as a persistent cache volume on the host machine.
-# On subsequent builds, Gradle finds its dependencies already downloaded and skips the download.
-# gradle dependencies: resolves and downloads all dependencies without compiling any code.
-# Creates a dedicated Docker layer — if build.gradle.kts doesn't change, this entire
-# step is skipped on rebuild via Docker layer cache.
-RUN --mount=type=secret,id=gradle_props,target=/usr/app/gradle.properties \
---mount=type=cache,target=/root/.gradle \
-gradle dependencies --no-daemon
-
-# Copies only the source code into the container.
-# Placed after the dependency download step intentionally — modifying source code only
-# invalidates this layer and the ones after it, leaving the dependency layer cached.
-COPY src $APP_HOME/src
-
-# Compiles the source code and packages the application into a fat JAR (shadowJar).
-# Same secret and cache mounts as above:
-# - gradle.properties is injected securely for repo credentials
-# - /root/.gradle cache is reused so dependencies are not re-downloaded
-# gradle shadowJar: compiles Java sources and bundles all dependencies into a single JAR.
-# --no-daemon: prevents Gradle from starting a background daemon, suitable for containers.
-RUN --mount=type=secret,id=gradle_props,target=/usr/app/gradle.properties \
---mount=type=cache,target=/root/.gradle \
-gradle shadowJar --no-daemon
-
-> --mount=type=cache,target=/root/.gradle \
-# Appear two times and i'm not able to say how/if its useful or not
-- It is obviously. cause as wwe comment, each run command is an isolated process
-
-- Okay got it the image worked fine cause the mavenCentral() fallback, once commented, build failed
-> secrets:
- gradle_props:
- file: ./gradle.properties was needed in compose to success
-- Was needed in compose, to tell explicitely that the secret exist and where to find it
-
-# ===== JLINK STAGE =====
-# Defines the second stage named "jre-build".
-# Uses the full Corretto 25 JDK image solely to run jlink and produce a custom JRE.
-# This stage is discarded after the runtime stage copies its output.
-FROM amazoncorretto:25-alpine-jdk AS jre-build
-
-# Installs binutils which provides objcopy, required by jlink's --strip-debug option on Alpine.
-# Without this, jlink fails with "Cannot run program objcopy".
-# --no-cache: does not cache the apk index locally, keeping the layer smaller.
-RUN apk add --no-cache binutils
-
-# Builds a minimal custom JRE containing only the modules the application actually needs,
-# as determined by running jdeps on the fat JAR.
-# --add-modules: explicitly lists the required Java modules identified by jdeps.
-# java.base — core Java classes, always required
-# java.desktop — AWT/Swing and related classes
-# java.instrument — Java instrumentation API
-# java.naming — JNDI naming and directory services
-# java.sql — JDBC database access
-# jdk.compiler — Java compiler API
-# jdk.unsupported — sun.misc.Unsafe and other unofficial APIs used by many libraries
-# --strip-debug: removes debug symbols from the JRE, reducing its size.
-# --no-man-pages: excludes man page documentation files.
-# --no-header-files: excludes C header files used for native development.
-# --compress=zip-6: compresses the JRE resources using ZIP level 6 compression.
-# --output /jre-custom: writes the resulting custom JRE to /jre-custom inside this stage.
-RUN jlink \
---add-modules java.base,java.desktop,java.instrument,java.naming,java.sql,jdk.compiler,jdk.unsupported \
---strip-debug \
---no-man-pages \
---no-header-files \
---compress=zip-6 \
---output /jre-custom
-
-# ===== RUNTIME STAGE =====
-# Defines the final stage — the actual image that will be deployed.
-# Starts from bare Alpine 3.23 (~5MB) with no Java installed.
-# Only artifacts explicitly copied from previous stages are included.
-FROM alpine:3.23
-
-# Redeclares APP_HOME — environment variables do not carry over between stages.
-ENV APP_HOME=/usr/app
-
-# Sets /usr/app as the working directory for the runtime container.
-WORKDIR $APP_HOME
-
-# Copies the custom JRE produced by jlink into /opt/jre.
-# This is the only Java runtime in the final image — no full JDK, no unused modules.
-COPY --from=jre-build /jre-custom /opt/jre
-
-# Copies the fat JAR produced by the build stage into the working directory.
-# The wildcard *.jar matches the shadowJar output file regardless of its exact name.
-COPY --from=build /usr/app/build/libs/*.jar app.jar
-
-# Adds /opt/jre/bin to the PATH so the java command is available without its full path.
-ENV PATH="/opt/jre/bin:$PATH"
-
-# Creates a system group and a system user with no password, no home directory,
-# and no login shell — the container will run as this unprivileged user.
-RUN addgroup -S appgroup && adduser -S appuser -G appgroup
-
-# Switches to appuser for all subsequent instructions including ENTRYPOINT.
-# The application runs without root privileges, limiting the impact of any security breach.
-USER appuser
-
-# Documents that the application listens on port 43000.
-# Does not open the port by itself — requires -p flag at docker run time.
-EXPOSE 43000
-
-# Defines the fixed startup command for the container.
-# Exec form (JSON array) passes arguments directly to the OS without a shell, its possible only cause we aded Java to path
-# making java the PID 1 process so it correctly receives signals like SIGTERM.
-ENTRYPOINT ["java", "-jar", "app.jar"]
-
-- No clue how the hell I will remember to build one other like this from scratch but at least now it doesnt seem to much as chinese if I have to read a dockerfile
-- • builds the app, O.K
- • runs it as a non-root user, O.K
-> USER appuser
-
- • does not create OS users at container startup.
-- User created at build. Avoid being root even for a blink of eye
-
- • Use docker compose to run the app O.K
-- docker compose up --build works from a clean state. OK
-- Cause it worked right after
-> docker system prune -a --volumes
-- Removes all stopped containers, unused networks, every image (tagged or not),
- build cache, and volumes. Leaves only resources attached to running containers.
-while following command showed no running container
-> docker ps -a
-
-- Asked the reviewer about --build from clean state
-- Gave me something11
-> docker compose down -v --remove-orphans
-- Erase volumes, and containers not define in docker compose
-> docker compose up –build
-- Contenair gracefully started and reachable
-
-> docker system prune -a --volumes
-- The scope of command is not fine, it act as a docker level and woulk act a bit as a catastrophiic "rm * INSIDE my docker install" (wich wasnt a problem as my install is new BUT the command gaved by reviewer is project scope, so what I will use for now)
-
-- Okay actually I think the reviewer will kill me. I just remember that .dockerignore right now
-- What .dockerignore actually does : It make the image a bit smaller avoiding unecessary COPY to the docker build context
-- It avoid passing secret and senstitives data to the build context with COPY
-
-
-__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
-Part 3 FOLLOW UPS
-
-- The part 3 review raises important ways to improve myself
-
-1) My attention level drop when it come to polishing
-2) I act before I check
-3) I fix, eventually, but after, once i already acted brainless
-
-- Those are deeps habits, way deeper than, only issues relatives to IT scope. But theses habits are bad.
-- I Discussed the review of part 3 with Claude, with a clear goal : Building together a kind of reproducible patch to address the issues we listed just above
-- I think It must be set up as the highest priority
-- Added a pre_push_checklist.md inside code_review/ folder : The idea is to have a small checklist highlighting critical points before any work can be pushed / considered done
-
-## What is still broken
-
-**1. `Main.java` line 17: `final CountDownLatch latch = new CountDownLatch(2);`.** (Carryover from Part 1 follow-up.)
-- Change the value used for test : `final CountDownLatch latch = new CountDownLatch(2)` to `final CountDownLatch latch = new CountDownLatch(1)`
-- This way the hook work as intended by stoping the Java program gracefully when an even as a ctrl+c or a manual kill of process is send to the JVM
-- From there i wanted to dig a bit the difference between ctrl+c (SIGINT)) and a manual kill command (SIGTERM)
-- Went to Reddit : https://www.reddit.com/r/linuxadmin/comments/h9bzcc/what_is_the_difference_between_sigint_and_sigterm/?tl=fr
-- It seem as SIGINT interrupt the current operation but doesn't quit the current context. For example Claude gave me the example aof a Python program interrupted by ctrl+c : You stop the Python script but don't kill the python process itself
-- SIGTERM kills process itself gracefully. SIGKILL kill the process immediately. All programs don't bother themselves with the shades of different signals.
-
-**2. `Dockerfile` line 173: `EXPOSE 43000`.** (Carryover from your earlier Part 3 checkpoint.)
-
-- Fixed `EXPOSE 43000` to `EXPOSE 42000`
-- Fixed also the linked commentary
-# Documents that the application listens on port 43000.
-- Is now :
-# Documents that the application listens on port 42000.
-
-**3. The original Dockerfile commented out at the top of the new file (lines 1 to 44).** (New this round.)
-- Erased the commented old Dockerfile version in my Dockerfile
-
-**4. `Dockerfile` line 5: stray French text.** (New this round.)
-- Erased
-
-**`.dockerignore` has a duplicated line.** `*.ipr` appears on lines 32 and 33. Cosmetic.
-- Duplicated line erased
-
-**`build.gradle.kts` has accumulated dead dependencies.** `lombok` was added during your Part 2 wrong-credentials investigation and the project does not actually use it. `junit-jupiter-api:6.0.3` is marked in your own comment as *"not used dependencies so far. just here for repo logic testing/understanding"*. Both should either be removed or have a comment explaining why they stay. Carrying unused dependencies is a small cost on a small project and a real one on a big project; the habit to build now is "if it is not used, it is not declared."
-- `org.junit.jupiter:junit-jupiter-api:6.0.3` and `org.projectlombok:lombok:1.18.46` erased from build.gradle.kts
-- noticed `tools.jackson.core:jackson-databind:3.1.2` was on the same case and erased it as well from build.gradle.kts
-
-- I erased some dependencies it mean as maybe my Docker image can be a tiny bit lighter now
-> rm -rf ~/.gradle/caches
-rm -rf ~/.gradle/kotlin-dsl
-rm -rf ~/.gradle/daemon
-./gradlew build
-- Lets now redo a fat jar without the erased dependencies
-> ./gradlew shadowJar
-- let see what changed when it come to jdeps output and if me can erase some jave modules from Dockerfile to make the JRE lighter
-> jdeps --multi-release 25 \
---ignore-missing-deps \
---print-module-deps \
-build/libs/*.jar
-java.base,java.instrument,java.logging,java.naming,java.xml,jdk.compiler,jdk.unsupported
-
-- java.base,java.instrument,java.logging,java.naming,java.xml,jdk.compiler,jdk.unsupported
-Instead of :
-- java.base,java.desktop,java.instrument,java.naming,java.sql,jdk.compiler,jdk.unsupported
-
-- java.sql and java.desktop erased to Dockerfile
-- java.xml and java.logging added to Dockerfile
-- Was surprised some module was added cause we only erased some dependencies but talking about my doubts to Claude, and he explained how more tailored and small was the new module compared to the previously embedded
-- asked a way to prove what he says
-> jlink --add-modules java. Desktop --output /tmp/jre-desktop
-du -sh /tmp/jre-desktop
-99M /tmp/jre-desktop
-> jlink --add-modules java.sql --output /tmp/jre-sql
-du -sh /tmp/jre-sql
-72M /tmp/jre-sql
-
-> jlink --add-modules java.logging --output /tmp/jre-logging
-du -sh /tmp/jre-logging
-59M /tmp/jre-logging
-> jlink --add-modules java.xml --output /tmp/jre-xml
-du -sh /tmp/jre-xml
-71M /tmp/jre-xml
-- Fact checked
-
-- Lets build the final docker image from clean state
-> docker compose down -v --remove-orphans
-> docker compose up --build
-- Build and run as a charm
-
-- Fine, now we have done
-- By "done" I mean : addressed a fix to all broken things referenced into REWIEW_PART3.md :
-## What is still broken
-## Two smaller notes
-
-- We will now check the pre_push_checklist.md
-- ## 1. Re-read the spec
-
-- [x ] Read every requirement **word for word** — not diagonally
-- [x ] Check previous review carryovers — is every pending fix actually applied?
-- Requirement was fixes asked by ## What is still broken (see ## What is still broken and ## Two smaller notes)
-- - They include new needed fixes and previous review carryovers
-- Forget to erase `// test` on line 54. Now erased.
-
-## 2. Re-read your code
-
-- [x ] Read every modified file **line by line** — you are actively looking for problems
-- [x ] Remove everything vestigial: commented-out code, test lines, accidental paste fragments
-- [x ] Check internal consistency: ports, variable names, constants — do they match across all files?
-
-- Feel already as a pain in the ass to check with serious.
-- Hopefully through git we can just look easily at what changed on files since last commit. Okay doable
-- Done
-
-## 3. If you used an LLM to generate code
-
-- [ ] You can explain every non-trivial block out loud
-- [ ] You asked at least one "why" question and tested one assumption by changing a value and observing what happens
-
-- No LLM Generation in this commit
-
-## 4. Final check
-
-- [X ] Read your full diff once — everything the reviewer will see, you saw first
-
-- Read again the full diff
-- Read again logbook part. try to catch up typo and grammar mistakes. Checking autocorrect suggestion
-
-------------------------------------------------------------------------------------------------------------------------
-
-**PREPARATION** Part 4 – Intentional failure mode
-
-(important clarification)
-
-You must **intentionally introduce at least one failure, then debug and fix it.**
-
-⚠️ This **does NOT mean adding a try/catch in the code.**
-**Do not artificially handle exceptions** just to create an error.
-
-What “intentional failure mode” means
-
-It means **misconfiguring the environment or runtime, like real production issues.**
-
-Examples (pick at least one):
-**• App binds to 127.0.0.1 inside Docker and is unreachable from the host.
-• Container runs as non-root but a required directory is owned by root.
-• Gradle fails to resolve dependencies due to missing/wrong repo credentials.
-• Container uses too much memory and becomes slow or unstable.**
-
-What I want you to practice
-• Reading logs and error messages
-• Using tools like docker logs, docker stats, ps, curl
-• Forming hypotheses (“this looks like a permission issue”)
-• Testing and confirming the cause
-• Applying a correct fix
-• Writing down why you thought it was the issue and how you verified it
-
-What I do NOT want
-• Adding try/catch blocks just to “handle” an error
-• Swallowing exceptions
-• Modifying business logic to fake a failure
-
-Rule of thumb:
-• If the fix is in Docker config, environment variables, permissions, memory limits, or networking, you’re doing it right.
-• If the fix is adding try/catch, you’re missing the point.
-
-- Before going any further, I think that a standardized checklist would be important before starting any kind of code. I rediscussed it with Claude
-- The main goal is to keep it concise. Its important cause I want to build an habit there, as for the pre push checklist
-- I hate this idea, but I feel it as same pain as when you run for first time in a while. Fire inside lungs and throat but absolutely needed
-- From now, we are trying to iterate on creating professional habits. I want to turn from a slightly chaotic to become a strictly well organized brain
-
-## On receiving a new task
-
-- [X ] Read the entire brief **once, slowly** — including the last lines
-- - [ ] Read it a **second time**, this time underlining every deliverable and every constraint
-- everything will end up highlithed..not realistic/useful
-
-- [X ] Write down in your own words: **what is the actual goal of this part?**
-- The goal is to create REALS bug on the project and documenting them carefully through the different steps (Documenting the creation of issue, then the way to diagnostic by debug it and finally the way to fix it)
-- The issues must be real, not faked (as a try catch only there to mimic for example)
-
-- [X ] List every explicit deliverable — nothing implied, only what is written
-- The goal is to create REALS bug on the project and documenting them carefully through the different steps (Documenting the creation of issue, then the way to diagnostic by debug it and finally the way to fix it)
-- The issues must be real, not faked (as a try catch only there to mimic for example)
-- Do this for each of the following issues
-
-- App binds to 127.0.0.1 inside Docker and is unreachable from the host.
- • Container runs as non-root but a required directory is owned by root.
- • Gradle fails to resolve dependencies due to missing/wrong repo credentials.
- • Container uses too much memory and becomes slow or unstable.**
-
-- [X ] Identify any **warnings, rules, or "do NOT"** sections — treat them as hard constraints
-- No artificially faked issues
-- Explain every step. Process logically. Don't run
-
-- [ ] If something is ambiguous, **ask before starting** — not halfway through
-
-- App binds to 127.0.0.1 inside Docker and is unreachable from the host.
-- Does it mean App expose 127.0.0.1 when running inside docker and that make it unreachable cause localhost from a docker container cant be reached from outside ?
-- Claude confirmed I understood well
-- Container runs as non-root but a required directory is owned by root.
-- As an example there is a COPY layer BUT the directory involved by the copy instruction is owned by root. right ?
-- It seem a bit more complex than it. Can you elaborate ?
-
-- Asked Clarifications to reviewer
-- Quick aside before answering: asking now, before you start, is exactly the timing we have been pushing for three reviews. Good move. Now the answers.
-
- Q1. You have it right. Container has its own network namespace, 127.0.0.1 inside it is only reachable from inside the container. Docker's -p 43000:42000 forwards host traffic to the container's bridge
- interface, not to loopback, so a 127.0.0.1-bound app gets nothing.
-
- For your code: new HTTPListenerConfiguration(port) defaults to all interfaces, which is why your app currently works through Docker. To introduce the failure for Part 4, use the constructor variant
- that takes a bind address and pass "127.0.0.1" (check the class for a (String, int) or (InetAddress, int) signature). To fix it back, drop the address argument or pass "0.0.0.0".
-
- Q2. Broader than COPY. Everything created in the Dockerfile before the USER directive is owned by root: WORKDIR, COPY destinations, files from RUN commands, all of it. When the process switches to
- appuser, it inherits no ownership of any of that. It can usually read root-owned files (default permissions are world-readable). It cannot write to root-owned directories.
-
- For your app specifically: this failure does not happen naturally because your app does not write to disk anywhere. Logback is using its default console appender, your handler returns HTTP responses
- without persisting anything. To create the failure for Part 4, the cleanest path is to add src/main/resources/logback.xml with a FileAppender writing to something like /usr/app/logs/server.log. The
- app will fail at startup trying to create the file because /usr/app/ is root-owned (your WORKDIR /usr/app runs before USER appuser). To fix it back: in the Dockerfile, before USER appus0er, run mkdir
- -p /usr/app/logs && chown -R appuser:appgroup /usr/app/logs.
-
- The mental model worth keeping: USER switches who runs the process. It does not change who owns the files the process touches. Permission failures inside containers are almost always those two layers being out of step.
-
-
-------------------------------------------------------------------------------------------------------------------
-
-PART 3 FOLLOW UPS
-
-- I read the whole review twice as noted int the pre_start_checklist
-- Too excited to start
--
-
-- [X ] Write down in your own words: **what is the actual goal of this part?**
-- Small fixes + understanding what are git hooks, then implementing some to address the listed issues
-
-- [X ] List every explicit deliverable — nothing implied, only what is written
-
-- **1. Fix two arguments into the gradle.example.properties file to match changes I made in gradle.properties `repsyUsername` to `repsyRepoUsername` and `repsyPassword` to `repsyRepoPassword`
-- **2. The Dockerfile jlink module comment is stale.** You correctly updated the `--add-modules` line to `java.base,java.logging,java.instrument,java.naming,java.xml,jdk.compiler,jdk.unsupported`. But the comment block above it (lines 70-77) still describes `java.desktop` (AWT/Swing) and `java.sql` (JDBC), which are no longer in the list, and does not describe `java.logging` or `java.xml`, which are. The code is right; the documentation is now wrong about what the code does.
-
-- **3. Set up all the automatic verifications listed as example by reviewer
-- **A CI step that runs the build from a clean clone, using only what is in the repo.** If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails. CI fails. You see it before anyone reviews.
-- **A CI step that does `docker compose up --build` and hits the `/test` endpoint.** Catches the EXPOSE port mismatch we discussed in the Part 3 review. Catches network binding failures (relevant for Part 4 directly). Catches a whole class of "works on my machine" bugs.
-- **A pre-commit hook that fails if `gradle.properties` is staged.** Would have prevented the original credentials leak before any commit happened.
-- **A simple grep check, in the pre-commit hook or in CI, that flags `TODO`, `// test`, `// TEMP`, or large blocks of commented-out code.** Catches the kind of vestigial-code review your checklist asks you to do by hand.
-
-- You do not need to set it all up at once. One pre-commit hook that catches one specific class of mistake is a real win.
-- LOL :)
-- You give me a list, I implement a list. Deal with that.
-- [X ] Identify any **warnings, rules, or "do NOT"** sections — treat them as hard constraints
-- Nothing special
-- [X ] If something is ambiguous, **ask before starting** — not halfway through
-- - **A CI step that runs the build from a clean clone, using only what is in the repo.** If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails. CI fails. You see it before anyone reviews.
-- Does it mean literally, cloning the repos is the first part of the CI ?
-- Confirmed by Claude
-- Answer From reviewer :
-> Conceptually correct
-But it’s not literally git clone as a step you write. Every CI provider (GitHub Actions, GitLab CI, etc.) does the checkout for you as the first thing (usually a build in action)
-the runner is a clean VM/container that only has what the repo provides + what the CI config installs
-So if sth works in your computer but not CI it will be probably because of a file/env var/tool the repo doesn’t declare (here eg your local gradle.properties)
-
-- **A CI step that runs the build from a clean clone, using only what is in the repo.** If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails. CI fails. You see it before anyone reviews.
-- Okay, so far my understanding of CI (Continuous Integration) Is about how we can automate build of a program, it comes along the second side which is CD (continuous deployment)
-- Explained to Claude that concepts was a bit too blurry to implement and asked for some keyword to begin my searches
-- He gave me ; CI/CD
- GitHub Actions
- Pipeline / Workflow
-- Let's start by the GitHub Action documentation
-
-- GitHub Actions is a continuous integration and continuous delivery (CI/CD) platform that allows you to automate your build, test, and deployment pipeline.
-- You can create workflows that run tests whenever you push a change to your repository, or that deploy merged pull requests to production.
-- Now we have a clear definition of CI/CD from documentation
-
-- using only what is in the repo.** If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails.
-- Hum but what in our case cause some of the keys on Gradle have some secrets values for private repo authentification. So, now (apart from you as reviewer) a standard user on gh wouldn't be able to build (Maven Central act as fallback but my private hw dependencies cant be fetched without credential.
-- Or, I should add a larger scope credential for the repo (like a public shared credential) ?
-- I think it wouldn't make sense cause in real life case if you have to provide repo access to everyone it seems as a security hole. and nothing is "private" anymore
-- Claude said it was correct and hint me to google a bit about GitHub Secrets. I will keep going read the doc it will probably be one of the chapter of CI/CD
-- Read a bit, saw a basic example, then went to action page on gh
-- Found a template : Build a Docker image to deploy, run, or push to a registry.
-- Wait ; "A CI step that runs the build from a clean clone" seem a bit ambiguous, Gradle build, docker image build ? both ?
-- We will consider here that we need to do the more complete task so kets say : fuild build Gradle + docker image
-
-- GH give us this template to start with
-
-> name: Docker Image CI
-
-on:
-push:
-branches: [ "master" ]
-pull_request:
-branches: [ "master" ]
-
-jobs:
-
-build:
-
- runs-on: ubuntu-latest
-
- steps:
- - uses: actions/checkout@v4
- - name: Build the Docker image
- run: docker build . --file Dockerfile --tag my-image-name:$(date +%s)
-
-- It seems to run docker build . --file Dockerfile --tag my-image-name:$(date +%s) for every push on master branch
-- I said to Claude that we need to adapt : If `gradle.example.properties` keys do not match what `build.gradle.kts` expects, the build fails
-- For building the image we need to provide important information (in our case the credentials ) to GitHub secrets
-- I added the content of my gradle.properties to a newly created secret repository
-
-```yaml
-name: Docker Image CI
-
-on:
- push:
- branches: [ "master" ]
- pull_request:
- branches: [ "master" ]
-
-jobs:
- build:
- runs-on: ubuntu-latest
- steps:
- - uses: actions/checkout@v6
- # This action checks-out your repository under $GITHUB_WORKSPACE, so your workflow can access it.
-
-
- # STEP 1 : Coherence check (No secret needed)
- # Basically we copy the example file to the gradle.properties. If name of properties doesnt match => fail
- # It works even without values, build.gradle.kts only checks the key match, not the value
- - name: Check gradle.example.properties is valid
- run: |
- cp gradle.example.properties gradle.properties
- ./gradlew help --no-daemon
-
- # STEP 2 : Docker build (Using GH Secrets)
- # We put the content of the GH secret GRADLE_PROPERTIES into gradle.properties
- - name: Create gradle.properties from secret
- run: echo "${{ secrets.GRADLE_PROPERTIES }}" > gradle.properties
-
- # Finally we build the image with the secret from the GH secrets repository
- - name: Build Docker image
- run: |
- docker build . \
- --secret id=gradle_props,src=gradle.properties \
- --file Dockerfile \
- --tag my-image-name:$(date +%s)
-```
-- Didn’t understand exactly uses: actions/checkout@v4
-- Went to the repo, it's an import of an action already coded by GitHub who checkout the repo. commented in the YAML just above, and noticed v6 was last available, so I updated
-- Note : actions must be under .GitHub/workflows folder
-
-- It same to make sense, lets test
-
-- GH action failed
-> Cannot convert '' to URI.
-- Claude was wrong
-- Basically we copy the example file to the gradle.properties. If name of properties doesn't match => fail
- It works even without values, build.gradle.kts only checks the key match, not the value
-- This comment is wrong. Gradle try immediately to convert the value into an uri
-- Right comment would be :
-# If a key is missing OR if a value has an invalid format (e.g. empty string for a URI) => fail
-- Lets put the value in gradle.exemple.properties at "https://example.com", other blank values will be set up at : "example_" + "key"
-
-- CI worked
-We will now make CI fail in purpose to check if it really works as expected
-
-1) commenting a key in gradle.example.properties
-- #repsyRepoUsername=example_repsyRepoUsername
-- fail as expected
-> Build file '/home/runner/work/Project1/Project1/build.gradle.kts' line: 33
-* What went wrong:
- Could not get unknown property 'repsyRepoUsername' for root project '1task' of type org.gradle.api.Project.
-* Try:
-> Run with --stacktrace option to get the stack trace.
-> Run with --info or --debug option to get more log output.
-> Run with --scan to get full insights from a Build Scan (powered by Develocity).
-> Get more help at https://help.gradle.org.
-BUILD FAILED in 32s
-Error: Process completed with exit code 1.
-
-2) Modifying a value of gh secrets to make step 2 fail
-- Erasing some value in GH secrets repository
-- Push
-> > [build 5/7] RUN --mount=type=secret,id=gradle_props,target=/usr/app/gradle.properties --mount=type=cache,target=/root/.gradle gradle dependencies --no-daemon:
-33.53 Could not get unknown property 'repsyUrl' for root project '1task' of type org.gradle.api.Project.
-33.53
-33.53 * Try:
-33.53 > Run with Configuration cache entry stored.
-33.53 --stacktrace option to get the stack trace.
-33.53 > Run with --info or --debug option to get more log output.
-33.53 > Run with --scan to get full insights from a Build Scan (powered by Develocity).
-33.53 > Get more help at https://help.gradle.org.
-33.53
-33.53 BUILD FAILED in 33s
-------
-Dockerfile:35
---------------------
-34 | # step is skipped on rebuild via Docker layer cache.
-35 | >>> RUN --mount=type=secret,id=gradle_props,target=/usr/app/gradle.properties \
-36 | >>> --mount=type=cache,target=/root/.gradle \
-37 | >>> Gradle dependencies --no-daemon
-38 |
---------------------
-ERROR: failed to build: failed to solve: process "/bin/sh -c gradle dependencies --no-daemon" did not complete successfully: exit code: 1
-Error: Process completed with exit code 1.
-- Failed as expected
-- Let's fix back the GH secrets repository with all proper values
-- Worked
-
-- **A CI step that does `docker compose up --build` and hits the `/test` endpoint.** Catches the EXPOSE port mismatch we discussed in the Part 3 review. Catches network binding failures (relevant for Part 4 directly). Catches a whole class of "works on my machine" bugs.
-
-- Asked Claude what would be a proper name for this GA
-- He told about smoke test
-- I found it fun and googled, it seems something who match what we are doing
-> a subset of test cases that cover the most important functionality of a component or system.
-Used to aid assessment of whether main functions of the software appear to work correctly.
-
-- Discussed a bit with Claude
-- His first version wasn't fine on my opinion as there wasn't retry on curl command, the CI just test endpoint once after 5 seconds.
-- I set up retry and delay to a reasonable amount so docker container can setup properly
-- The port in the curl command was hardcoded
-- I proposed to add a appPort properties in gradle.properties to make the port choice dynamic. It parses the properties value passed just before by GH secrets
-- It also makes me think I should make the Dockerfile dynamic when it comes to port choice. So we will use this new properties
-- We will also use this new propertie in our main at .withListener(new HTTPListenerConfiguration(42000)) so the dynamic choice is consistant, and we get rid of hardcoded value
-- Added in build.gradle.kts. I described the need of an environment variable and asked Syntax to Claude
-> tasks.named("run") {
- environment("APP_PORT", project.findProperty("appPort")?.toString() ?: "42000")
- }
-- So we will be able to test build only ./gradlew run with dynamic syntax
-- Inside my main I define dynamically the port where java HTTP server run
->int port = Integer.parseInt(System.getenv().getOrDefault("APP_PORT", "42000"));
-- Change EXPOSE 42000 to
-># Documents that the application listens on port $EXPOSED_PORT
-# Does not open the port by itself — requires -p flag at docker run time.
-ARG EXPOSED_PORT=43000
-EXPOSE $EXPOSED_PORT
-- Cosmetic
-- Had a long discussion with Claude about making both ports (inside and outside container) fully dynamic. gamely for local java+gradle only test and for full docker use case
-
-```yaml
-name: Docker Image CI
-
-# Append on every push on master branch
-on:
- push:
- branches: [ "master" ]
- pull_request:
- branches: [ "master" ]
-
-jobs:
- build:
- runs-on: ubuntu-latest
- steps:
- - uses: actions/checkout@v6
-
- # STEP 1 : Create gradle.properties from GH Secret
- - name: Create gradle.properties from secret
- run: echo "${{ secrets.GRADLE_PROPERTIES }}" > gradle.properties
-
- # STEP 2 : Build image via compose (secrets handled in docker-compose.yml) and smoke test
- - name: Check /test endpoint to catch eventual port mismatch
- run: |
- export EXPOSED_PORT=$(grep "exposedPort" gradle.properties | cut -d'=' -f2)
- docker compose up -d --build
- curl --fail --retry 10 --retry-delay 8 --retry-connrefused http://localhost:$EXPOSED_PORT/test
- docker compose down
-```
-- And our updated compose
-```yaml
-services:
- app:
- build:
- context: .
- secrets:
- - gradle_props
- image: project1:latest
- environment:
- - APP_PORT=${APP_PORT:-42000}
- ports:
- - "${EXPOSED_PORT:-43000}:${APP_PORT:-42000}"
-
-secrets:
- gradle_props:
- file: ./gradle.properties
-```
-- Let's update our GH secrets and then commit & push to test how it goes
-- Failed
-> 1s
-Run export EXPOSED_PORT=$(grep "exposedPort" gradle.properties | cut -d'=' -f2)
-invalid hostPort: 43000
-Error: Process completed with exit code 1
-- I put a space in my port name, leaded to the error
-- Fix & Try again
-
-> 27 resolving provenance for metadata file
-#27 DONE 0.0s
-Network project1_default Creating
-Network project1_default Created
-Container project1-app-1 Creating
-Container project1-app-1 Created
-Container project1-app-1 Starting
-Container project1-app-1 Started
-% Total % Received % Xferd Average Speed Time Time Time Current
-Dload Upload Total Spent Left Speed
-
-0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
-0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
-curl: (56) Rev failure: Connection reset by peer
-Error: Process completed with exit code 56.
-
-- Checked with Claude
-- --retry-connrefused → retries when port is not open yet.
- --retry-all-errors → retries on any error, including Connection reset by peer (JVM started but app not ready yet).
-- Let's try again
-- BTW all this flag seem dirty I wonder if there is more classy way to do. We will see then
-
-- Worked
-> Container project1-app-1 Stopping
-Container project1-app-1 Stopped
-Container project1-app-1 Removing
-Container project1-app-1 Removed
-Network project1_default Removing
-Network project1_default Removed
-Successful HTTP request
-
-- Let's eat, and then we will edit the action with ton of comment. I used Claude quite a lot but little step after little step and I feel as I understood everything who append clearly by discussing actively with him
-
-```yaml
-name: Smoke Test CI
-
-# Append on every push or pull_request on master branch
-on:
- push:
- branches: [ "master" ]
- pull_request:
- branches: [ "master" ]
-
-jobs:
- build:
- runs-on: ubuntu-latest
- # The CI run on a ubuntu-latest image container
- steps:
- - uses: actions/checkout@v6
- # Checkout the repo to the container
-
- # STEP 1 : Create gradle.properties from GH Secret
- - name: Create gradle.properties from secret
- run: echo "${{ secrets.GRADLE_PROPERTIES }}" > gradle.properties
-
- # STEP 2 : Build image via compose (secrets handled in docker-compose.yml) and smoke test
- - name: Check /test endpoint to catch eventual port mismatch
- run: |
- export EXPOSED_PORT=$(grep "exposedPort" gradle.properties | cut -d'=' -f2)
- # Parse exposedPort value from gradle.properties and set this value to EXPOSED_PORT
- # export EXPOSED_PORT makes the value the variable available to child processes of the current shell. including Docker compose
- docker compose up -d --build
- # Start container in detached mode (returns prompt immediately instead of blocking on logs)
- curl --fail --retry 10 --retry-delay 8 --retry-connrefused --retry-all-errors http://localhost:$EXPOSED_PORT/test
- docker compose down
+ String url = (System.getenv().getOrDefault("PAGE_ABSOLUTE_PATH", "CHEMIN_FAUX"));
+ booleanboolean
+```java
+ else if (path.equals("/recorderwebpage")) {
+ Path filePath = Path.of(url);
+ byte[] content = Files.readAllBytes(filePath);
+ res.setStatus(200);
+ res.setContentType("text/html");
+ res.getOutputStream().write(content);
+ logger.info("Successful HTTP request");
+ }
```
-- curl --retry 10 --retry-delay 8 --retry-all-errors http://localhost:$EXPOSED_PORT/test
-- instead of
-- curl --fail --retry 10 --retry-delay 8 --retry-connrefused --retry-all-errors http://localhost:$EXPOSED_PORT/test
-
-- Added instruction in README.md for : Override Docker compose port values / Export variable instruction
-> APP_PORT=46000 EXPOSED_PORT=47000 docker compose up
-
-> 1777984908315 Starting the HTTP server. Buckle up!
- app-1 | 1777984908334 HTTP server listening on port [42000]
- app-1 | 1777984908334 HTTP server started successfully
- app-1 | 12:41:48.334 [main] INFO org.example.Main -- Server started on port 46000
-- I forget to put the dynamic value. I remove it now
-> pp-1 | 13:24:52.623 [main] INFO org.example.Main -- Fuck off procrastination!
-app-1 | 1777987492650 Starting the HTTP server. Buckle up!
-app-1 | 1777987492659 HTTP server listening on port [46000]
-app-1 | 1777987492659 HTTP server started successfully
-app-1 | 13:24:52.659 [main] INFO org.example.Main -- Server started on port 46000
-- Perfect
-- Now lets check if ./gradlew run work fine too
-- appPort=48000 in gradle.propertie
- > 1777987998881 HTTP server listening on port [48000]
- 1777987998881 HTTP server started successfully
- 15:33:18.881 [main] INFO org.example.Main -- Server started on port 48000
-- Both direct gradlew build and Docker Compose port configuration work. Nothing hardcoded anymore. Resilient since there is fallback values set up
+Cause une erreur 500
-- Just realized how It's difficult to keep focus while doing phone customer support on the meantime
-- Anyway, it's fine. Let's commit & push we are half of the way
+Je ne vois pas comment utiliser un chemin relatif
-- **A pre-commit hook that fails if `gradle.properties` is staged.** Would have prevented the original credentials leak before any commit happened.
+Je comprends bien que cela veut dire que le chemin relatif que je crois passer à mon programme n'est pas celui qu'il lit en réalité, d'ou le fait que le chmin absolu fonctionne
-- Git Hook are different from GitHub actions, they aren't linked to GitHub
-- - A bit more, directly from the documentation of git :
+Je place donc
-The pre-commit hook is run first, before you even type in a commit message. It’s used to inspect the snapshot that’s about to be committed
-To see if you’ve forgotten something, to make sure tests run, or to examine whatever you need to inspect in the code.
-Exiting non-zero from this hook aborts the commit, although you can bypass it with git commit --no-verify. You can do things like check for code style (run lint or something equivalent), check for trailing whitespace (the default hook does exactly this), or check for appropriate documentation on new methods.
-
-- Asked Claude a tutorial source : https://adamj.eu/tech/2024/01/24/pre-commit-fail-hook/
-- I think I like this way : more active, less copy and paste than when he does himself
-- Grab the tutorial example
-
-```yaml
-repos:
-- repo: local
- hooks:
- - id: check-fixture-types
- name: Check fixture types
- language: fail
- entry: Please convert non-YAML fixtures to YAML.
- files: /fixtures/
- exclude_types: [yaml]
-```
-- Adapted with a regular expression
-
-```yaml
-repos:
-- repo: local
- hooks:
- - id: block-gradle-properties
- name: Block gradle.properties from being committed
- language: fail
- entry: "gradle.properties must not be committed — use gradle.example.properties instead"
- files: /fixtures/
- exclude_types: ^gradle\.properties$
+```java
+Path filePath = Path.of("/www/index.html");
```
-> sudo apt install pre-commit
-- This command creates the .git/hooks/pre-commit file, which will be executed automatically on every git commit
-- Without it, the .pre-commit-config.yaml file exists but does nothing
-> pre-commit run --all-files
-An error has occurred: InvalidConfigError:
-==> File .pre-commit-config.yaml
-==> At Config()
-==> At key: repos• If the fix is in Docker config, environment variables, permissions, memory limits, or networking, you’re doing it right.
+un peu plus tôt dans le programme, avant l'erreur 500 pour lire le contenu réel
-==> At Repository(repo='local')
-==> At key: hooks
-==> At Hook(id='block-gradle-properties')
-==> At key: exclude_types
-=====> Expected array but got 'str'
-Check the log at /home/agschwind/.cache/pre-commit/pre-commit.log
-
-- Claude Said : The error is clear — there's no exclude_types in our config, so you must have an older version. Replace with exactly this:
-
-```yaml
-repos:
- - repo: local
- hooks:
- - id: block-gradle-properties
- name: Block gradle.properties from being committed
- language: fail
- entry: "gradle.properties must not be committed — use gradle.example.properties instead"
- files: ^gradle\.properties$
+Je log avec :
+```java
+ logger.info("Valeur du chemin relatif du point de vu du programme : {}", filePath );
```
-- It works. Failure, as expected
-> pre-commit run --all-files
-Block gradle.properties from being committed.............................Failed
-
-- Let's try for real
-- Commit Fail. Done
-- Let's remove gradle.properties from staged
-> git restore --staged gradle.properties
-> git status
-- modified build.gradle.kts
-- Should work. Let's try
-- TEST
-- WORKED
--
-
-- **A simple grep check, in the pre-commit hook or in CI, that flags `TODO`, `// test`, `// TEMP`, or large blocks of commented-out code.** Catches the kind of vestigial-code review your checklist asks you to do by hand.
-
-- Will probably be a regular expression with a TODO OR // test OR // TEMP
-- I found a nice website to check easily regex Claude give : https://regex101.com/
-- But how to discriminate the end of big commented out code section properly ?
-- Claude said something funny : My advice: leave it to code review rather than over-engineering the hook.
-- Well okay I will be a pussy here. I know I should learn basic shell scrip for these kind of tasks seem a mountain tbh
-- I mean probably after gew hours I will understand what the snippet does but tomorrow I will forget
-- I should maybe take a whole day just paper and GNU doc, but I will forget the day after. as always :(
-- Let's shut up and focus on project for now
-
-- Added `//TEMP` inside Main.java to test the pre-commit hook
-- Failed. The commit pass, (?i) flag and pygrep seem to work a bit differently despite the regex101 check
-- Switch from
-> entry: "(?i)TODO|FIXME|HACK|//\s*test|//\s*TEMP|XXX"
-
-To
-> entry: "TODO|todo|FIXME|fixme|HACK|hack|XXX|//\s*[Tt][Ee][Ss][Tt]|//\s*[Tt][Ee][Mm][Pp]"
-- commit passed again. Shit
-- Okay I'm too tired. Even by checking the regular expression it fail. I'm too tired.
-- Tomorrow this must be polished + commited last delay and I must have started Part 4 : Rhythm isn't good :(
-- Read a bit searched some already done similar pre commit hook i can just import and use
-- Finally browsed here : https://pre-commit.com/hooks.html
-- pre-commit configurations in popular projects: file:^\.pre-commit-config\.yaml$
-- Ofc I will just check some big SOTA open source java project and find what they have as pre commit hook. I can neither use nor fork
-- Hum it seem as big projects (at least looked springboot repo, make most of the verifications without pre-commit
-- Lets back to something simple
-- Tried another syntax with Claude
-- Same issue
-- OMG..
-- I didnt installed on this machine
-> sudo apt install pre-commit
-> entry: "(?i)(TODO|FIXME|HACK|XXX|//\\s*(test|temp))"
-> entry: "(?i)(TODO|FIXME|HACK|XXX|//\\s*(test|temp))"
-- SAME
-- Just fuck you regular expression
-- Maybe bash script
-
--OMFFG
-> home/ant/IdeaProjects/1task] git /usr/bin/git -c credential.helper= -c core.quotepath=false -c log.showSignature=false add --ignore-errors -A -f -- .pre-commit-config.yaml documentation/logbook.md src/main/java/org/example/Main.java
-01:05:42.199: [/home/ant/IdeaProjects/1task] git /usr/bin/git -c credential.helper= -c core.quotepath=false -c log.showSignature=false commit -F /tmp/git-commit-msg-5020869790962771.txt --
-An error has occurred: InvalidConfigError:
-==> File .pre-commit-config.yaml
-==> At Config()
-==> At key: repos
-==> At Repository(repo='local')
-==> At key: hooks
-==> At Hook(id='block-gradle-properties')
-==> At key: exclude_types
-=====> Expected array but got 'str'
-Check the log at /home/ant/.cache/pre-commit/pre-commit.log
-
-
-> pre-commit install --overwrite
-- Worked. I spent so many hours. Stupid slow brain & memory :(
-- Fuck.. I did shit the other day installing and then moved on
-- The .git/hooks/pre-commit file was owned by git-secrets. Running pre-commit install --overwrite replaced it with the pre-commit framework runner
- (Claude said, i'm not really sure what happen. My understanding stop at : there was a conflict between gi-secret installed few days before and git precommit hook )
-- Which now executes all hooks defined in .pre-commit-config.yaml on every commit.
-- But the version of pre-commit will have to be consistent among computers are use or it will be a mess
-> pre_comit --version
-- pre-commit 4.2.0
-
-- README.md update needed.
-## Optional
-- pre-commit hooks 4.20
-```bash
-pip install pre-commit==4.2.0
-pre-commit install --overwrite
+J'obtiens :
+```java
+23:31:23.334 [main] INFO org.example.Main -- Valeur du chemin relatif du point de vu du programme : /www/index.html
```
-> git restore --staged .pre-commit-config.yaml README.md documentation/logbook.md src/main/java/org/example/Main.java
-- unstaged everything and checked with gits status
-- erased //TEMP from Main.java
-- Commit and push worked
-- Same when tested again to block push when gradle.properties was staged
+Et je ne comprends pas du tout :)
-- Well well well. Lost sooo much time on this
-> pre-commit install --overwrite
-- At least I'm a bit proud of the fact all CI and git hook asked works
-- Will read the whole logbook part again, correct typos, read again about the concepts once again. everything seem clear now but better come back on it
-- As expect on work machine
-> pre-commit --version
-pre-commit 3.6.2
-- Updated to pre-commit 4.2.0
+NB : Sorry the previous are in french I hope you dont mind It should be okay to Claude translate
+Few additionals thinks :
-- Morning though on this :
-> Well okay I will be a pussy here. I know I should learn basic shell scrip for these kind of tasks seem a mountain tbh
-- With a fresh brain, learning along the way some expression, pattern, syntax, it looks a bit less as 1000% ununderstandable traditional Chinese
+I think I fucked my Git Project1
-- Looking back at what I did; it doesn't seem as dark/catastrophic as what I thought yesterday
+- I wanted to use what I had already to keep going on an independant repo and serving the html file and maybe more then
+- I cp -r my IdeaProject and edited name
+- It cause a ./gradlew issue cause gradlle wrappler wasnt copied to the "new project
+- I "fixed" as following
+ ```bash
+ cp ~/IdeaProjects/1task/gradle/wrapper/gradle-wrapper.jar gradle/wrapper/
+ ```
+ gradlew build worked localy..BUUUT my CI
+ Docker Image CI / build (pull_request) failed
-
-- We have one iteration again of this fucking : What you think is running and what Run for real
-- Command you type on a terminal days before can have a very bad silent impact
-
-- It made me think in the morning about an idea
-- Since we learnt in follow-ups part 3 that good engineers are good cause they can focus on the thing who matter
-- For example my overcomment of pre-commit hook and GA actions give me a deep feeling of roundness. I read them as natural language
-- They can focus on what matter cause they have good tools
-- If we do same mistake again, and again we need a tool.. but IT STILL VERY DIFFICULT TO GET AN ENVIRONMENT PROBLEM WHEN YOU DONT HAVE A CLUE ITS ONE. I wonder if its a "get caught one time and then you have exprerience for life or if I may have done otherwise"
-- The idea would be a bash script who check version of a given set of tools locally (gradle wrapper, javac, JVM version, git pre-commit version and currently active hook)
-- The script match them against a requirement.txt inside the repo and output in a requirement_check. txt file if anything is missing
-- So when we debug and the problem seem non-trivial we run this script, let say ./realrun and have a simple aggregator to investigate and no blind spots
-- Will not be perfect but will allow project tailored checklist AND to never do same mistake twice
-
-- Would be a cool think to do as a bash side project
-
-- Some YAML syntax error (the way I deal with comments for example ) seems silenced inside IDE and only show up when GA are run
-- The issue is that YAML comments (#) break the run: | block. In YAML, a literal block | ends as soon as a line returns to an indentation level equal or lower than the block's — which is exactly what my comments did
-- I moved the shell comments (#) inside the run block, at the same indentation level as the commands
-
-- I raised a question to reviewer about the proper algorithm to learn something new
-
-1) New thing for you: Official > examples in repo (if present) > ver changelog > closed GitHub issues > source/tests > human social content
-
-2) Debugging: error msg > closed issues > human content > source
-
-- I felt as a click to have a standardized pattern. Those meta-advice seems to make the difference. No specific stuff, more transversal building habits
-
-- WTH is this sometime my CI fail sometime with no change between two tries
-
->Plugin [id: 'com.gradleup.shadow', version: '9.4.1'] was not found in any of the following sources:
- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Included Builds (No included builds contain this plugin)
- Plugin Repositories (could not resolve plugin artifact 'com.gradleup.shadow:com.gradleup.shadow.gradle.plugin:9.4.1')
- Searched in the following repositories:
- Gradle Central Plugin Repository
-
-- Is it a GH infra problem ?!
-
-BUILD FAILED in 36s
-Error: Process completed with exit code 1.
-)
-- Failed twice. Worked one
-
-PART 4
-
-- We are going to start this part by implementing the first issue
-
-- App binds to 127.0.0.1 inside Docker and is unreachable from the host.
-
-- following the reviewer answer about Q1 we should switch new HTTPListenerConfiguration which take a int as argument
-- I wasn't very sure about what is a constructor variant, I asked Claude how it was different from using one another methode of the library
-- Claude showed me an example saying HTTPListenerConfiguration has not only one constructor
-> HTTPListenerConfiguration
-> new HTTPListenerConfiguration("127.0.0.1", port)
-- I wondered how to find the list of theses différents available constructors, I erased the actual argument in my code
-- IDE highlighted in red and I moved my mouse on it
-- A pop-up appear : Cannot resolve constructor 'HTTPListenerConfiguration()'
-- The pop-up showed all the available constructor
->Candidates for new HTTPListenerConfiguration() are:
- HTTPListenerConfiguration(int port)
- HTTPListenerConfiguration(int port, String certificate, String privateKey)
- HTTPListenerConfiguration(int port, Certificate certificate, PrivateKey privateKey)
- HTTPListenerConfiguration(int port, Certificate[] certificateChain, PrivateKey privateKey)
- HTTPListenerConfiguration(InetAddress bindAddress, int port)
- HTTPListenerConfiguration(InetAddress bindAddress, int port, String certificate, String privateKey)
- HTTPListenerConfiguration(InetAddress bindAddress, int port, Certificate certificate, PrivateKey privateKey)
-
-> HTTPListenerConfiguration(InetAddress bindAddress, int port)
-- It smells good, It's what we are looking for
-> InetAddress inetAddress = InetAddress.getByName("127.0.0.1");
-- http://localhost:43000/ : unreachable with curl
-
-- Fix
-> InetAddress inetAddress = InetAddress.getByName("0.0.0.0");
-- Request successful with curl
-- Problem involved network interface it was a network problem. The application inside docker need to listen in the right interface to catch the network traffic going to the container and route it to the program.
-
- • Container runs as non-root but a required directory is owned by root.
-
-Q2. Broader than COPY. Everything created in the Dockerfile before the USER directive is owned by root: WORKDIR, COPY destinations, files from RUN commands, all of it. When the process switches to
-appuser, it inherits no ownership of any of that. It can usually read root-owned files (default permissions are world-readable). It cannot write to root-owned directories
-
-- Starting from there I guess we will have to create a file "crashroot.txt" with root only permission
-- Then we will switch to our apps and ask him to write "fail" into the crashroot.txt file to make the build fail
-- Let's google it. Maybe there is other trick
-- Offcial documentation : https://docs.docker.com/build/building/best-practices/
-> Did the first fail in purpose of part 4 but I think I need clarification for the 2th
-Container run as non-root but a required directory is owned by root
-
-> By default image variants intended for runtime, run as the nonroot user.
-> Ensure that necessary files and directories are accessible to the nonroot user.
-> You may need to copy files to different directories or change permissions so your application running as the nonroot user can access them.
-- source Docker hardened images repository https://github.com/docker-hardened-images/catalog/blob/main/image/docker/guides.md
-- Said same as Q2 answer
-- During first step (build) we do
-> COPY src $APP_HOME/src
-- Lets add crashroot/ folder with crashroot.txt intp /src
-> sudo mkdir crashroot
-> sudo touch crashroot/crashroot.txt
-- Lets verify ownership inside src/
-> ls -l crashroot/crashroot.txt
--rw-r--r-- 1 root root 0 May 7 00:39 crashroot/crashroot.txt
-ant@127:~/IdeaProjects/1task/src$ ls -l crashroot
-total 0
--rw-r--r-- 1 root root 0 May 7 00:39 crashroot.txt
-- both folder and file are owned by root
-> COPY src $APP_HOME/src
-RUN addgroup -S crashgroup && adduser -S crashuser -G crashgroup
-USER crashuser
-RUN echo "foo" > $APP_HOME/src/crashroot/crashroot.txt
-- Failed as expect cause we try to write in a file owned by root with a non-root user
-> 57 | RUN addgroup -S crashgroup && adduser -S crashuser -G crashgroup
-58 | USER crashuser
-59 | >>> RUN echo "foo" > $APP_HOME/src/crashroot/crashroot.txt
-60 |
-61 | # ===== JLINK STAGE =====
-failed to solve: process "/bin/sh -c echo \"foo\" > $APP_HOME/src/crashroot/crashroot.txt" did not complete successfully: exit code: 1
-
-- Lets copy recursively the root owned directory and give ownership of this copied directory to the non roo user
-- Then we can write into the copied file of the copied folder and perform any action on it without root permissions
-> RUN addgroup -S crashgroup && adduser -S crashuser -G crashgroup
-RUN cp -r $APP_HOME/src/crashroot $APP_HOME/src/avoid_crashroot \
-&& chown -R crashuser:crashgroup $APP_HOME/src/avoid_crashroot
-USER crashuser
-RUN echo "foo" > $APP_HOME/src/avoid_crashroot/crashroot.txt
-- Run successfully
-> [+] up 3/3
-✔ Image project1:latest Built 2.8s
-✔ Network 1task_default Created 0.0s
-✔ Container 1task-app-1 Created
-- It was a permission issue as non root user didnt ad the right to write on a root owned directory. Copying the directory and giving non root write permission on it is a comon turn around
-
-• Gradle fails to resolve dependencies due to missing/wrong repo credentials.
-
-- Let's use again one of the properties we created earlier in the exercice
-- switch password = property("repsyRepoPassword") as String TO password = property("repsyPassword_WRONG") as String
-
-> Caused by: org.gradle.api.resources.ResourceException: Could not get resource 'https://repo.repsy.io/mvn/user92137778/project1/org/example/hw_dependencie/1.0.0/hw_dependencie-1.0.0.jar'.
-at org.gradle.internal.resource.ResourceExceptions.failure(ResourceExceptions.java:74)
-at org.gradle.internal.resource.ResourceExceptions.getFailed(ResourceExceptions.java:57)
-at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.downloadByUrl(DefaultExternalResourceArtifactResolver.java:114)
-at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.downloadStaticResource(DefaultExternalResourceArtifactResolver.java:92)
-at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.resolveArtifact(DefaultExternalResourceArtifactResolver.java:62)
-at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveArtifact(ExternalResourceResolver.java:487)
-... 39 more
-Caused by: org.gradle.internal.resource.transport.http.HttpErrorStatusCodeException: Could not GET 'https://repo.repsy.io/mvn/user92137778/project1/org/example/hw_dependencie/1.0.0/hw_dependencie-1.0.0.jar'. Received status code 401 from server:
-
-- The wrong credential password for the repsy repository lead to a build fail cause a needed dependencies cant be fetch and is needed at build time
-- Switch the variable value to default fix the problem
-- Its misconfiguration who lead to a permission problem cause we dont have the right to access and fetch from the repo when password is wrong
-
-- Container uses too much memory and becomes slow or unstable
-
-- We will have to find a way to limitate drasticaly the computer ram usage
- https://docs.docker.com/engine/containers/resource_constraints/
-- The maximum amount of memory the container can use. If you set this option, the minimum allowed value is 6m (6 megabytes).
-- That is, you must set the value to at least 6 megabytes.
-- This way we will easily achieve a situation where we mimic docker container using too much memory/took all mmeory available for him
-- -m or --memory=
-
-- Constraint can be also be set up into compose
-- https://docs.docker.com/reference/compose-file/deploy/#resources
-- added
-> deploy:
- resources:
- limits:
- memory: 6m
-- Content cant be reached when curl request
-> curl localhost:43000/test
-curl: (56) Recv failure: Connection reset by peer
-- end up with an error and finally exit
-> app-1 exited with code 137
-- remove the constraint from compose
-> curl localhost:43000/test
-Successful HTTP request
-- I give error 137 to Claude to get official docker documentation page
-- Its likely OOMKILLED error as with 6 mo of ram as maximum allowed usage, container ran out of memory
-- Claude give command to check
-> docker inspect docker ps -a
-> dbfcbf5e2be0 project1:latest "java -jar app.jar" 30 seconds ago Exited (137) 30 seconds ago 1task-app-1
-> docker inspect dbfcbf5e2be0 | grep OOMKilled
-# → "OOMKilled": true
- "OOMKilled": true,
-- Exit code 137 is one of the most common container failures, and it almost always means one thing: something killed the process with SIGKILL (signal 9). The math is simple: 128 + 9 = 137
-- In Linux, when a process is killed by a signal, its exit code is 128 plus the signal number. Signal 9 (SIGKILL) cannot be caught or handled by the process. It is an immediate, unconditional termination.
-- https://oneuptime.com/blog/post/2026-02-08-how-to-fix-docker-container-immediately-exiting-with-code-137/view
-- Remove constraint from Compose make container work again as expected
-
-
----------------------------------------------------------------------------------------------------------------------------------------------
-
-PART 5
-
-RUNBOOK.md done
-
-Project Done, waiting for follow up :)
+- (and despite i erased gradle/wrapper/ from gitignore then just to test, it failed again)
+- So now at least I puted it into a distinct branch
+ test_serve_html
+- No idea how to clean the shit I did with git.. but I guess I would have used the fork feature to do a clean copy
-THANKS A LOOOT !
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
deleted file mode 100644
index 4844ffe..0000000
Binary files a/gradle/wrapper/gradle-wrapper.jar and /dev/null differ
diff --git a/settings.gradle.kts b/settings.gradle.kts
index faf82cc..d7923f9 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1 +1 @@
-rootProject.name = "1task"
\ No newline at end of file
+rootProject.name = "RecorderWebPage"
\ No newline at end of file
diff --git a/src/crashroot/crashroot.txt b/src/crashroot/crashroot.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/src/main/java/org/example/Main.java b/src/main/java/org/example/Main.java
index 1fbfbce..08cd99f 100644
--- a/src/main/java/org/example/Main.java
+++ b/src/main/java/org/example/Main.java
@@ -9,6 +9,8 @@
import java.net.InetAddress;
import java.net.UnknownHostException;
+import java.nio.file.Files;
+import java.nio.file.Path;
import java.util.concurrent.CountDownLatch;
public class Main {
@@ -21,9 +23,12 @@ static void main() throws InterruptedException, UnknownHostException {
Runtime.getRuntime().addShutdownHook(new Thread(() -> latch.countDown()));
int port = Integer.parseInt(System.getenv().getOrDefault("APP_PORT", "42000"));
+ // String url = (System.getenv().getOrDefault("PAGE_ABSOLUTE_PATH", "CHEMIN_FAUX"));
InetAddress inetAddress = InetAddress.getByName("0.0.0.0");
+ Path filePath = Path.of("/www/index.html");
+
+ logger.info("Valeur du chemin relatif du point de vu du programme : {}", filePath );
- logger.info("Fuck off procrastination!");
HTTPHandler handler = (req, res) -> {
// Handler code goes here
String path = req.getPath();
@@ -33,6 +38,15 @@ static void main() throws InterruptedException, UnknownHostException {
res.getWriter().write("Successful HTTP request");
logger.info("Successful HTTP request");
}
+
+ else if (path.equals("/recorderwebpage")) {
+ //Path filePath = Path.of("/www/index.html");
+ //byte[] content = Files.readAllBytes(filePath);
+ res.setStatus(200);
+ res.setContentType("text/html");
+ //res.getOutputStream().write(content);
+ logger.info("Successful HTTP request");
+ }
else {
res.setStatus(404);
res.setContentType("text/plain");
diff --git a/src/www/index.html b/src/www/index.html
new file mode 100644
index 0000000..b7a222e
--- /dev/null
+++ b/src/www/index.html
@@ -0,0 +1,10 @@
+
+
+
+
+ Test
+
+
+Test
+
+
\ No newline at end of file