Improve missing Terraform config errors#12070
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Pull request overview
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This PR tightens Terraform module inspection by detecting missing Terraform configuration files up front and improving test coverage for missing/invalid module scenarios.
Changes:
- Added a pre-check for presence of
.tf/.tf.jsonfiles before callingtfconfig.LoadModule. - Introduced a standardized error message for missing module configuration.
- Expanded unit tests to cover missing submodules, missing config, and invalid config cases with optional exact error matching.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| pkg/recipes/terraform/module.go | Adds hasTerraformConfigFiles and returns a clearer “config not found” error before attempting module load. |
| pkg/recipes/terraform/module_test.go | Extends table-driven tests with setup hooks and exact error assertions for new failure modes. |
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| moduleDir := filepath.Join(workingDir, moduleRootDir, "test-module-no-config") | ||
| require.NoError(t, os.MkdirAll(filepath.Join(moduleDir, "main.tf"), 0755)) | ||
| require.NoError(t, os.WriteFile(filepath.Join(moduleDir, "README.md"), []byte("no terraform configuration"), 0644)) |
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| entries, err := os.ReadDir(moduleDir) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| for _, entry := range entries { | ||
| info, err := entry.Info() | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| if !info.Mode().IsRegular() { | ||
| continue | ||
| } | ||
|
|
||
| name := entry.Name() | ||
| if strings.HasSuffix(name, ".tf") || strings.HasSuffix(name, ".tf.json") { | ||
| return true, nil | ||
| } | ||
| } |
Signed-off-by: preko-p <278021202+preko-p@users.noreply.github.com>
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Thanks, addressed both review comments in a follow-up push. What changed:
Verification run locally through the Go 1.26.4 Docker image:
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Signed-off-by: preko-p <278021202+preko-p@users.noreply.github.com>
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DariuszPorowski
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good, targeted fix! thank you
@willtsai @zachcasper @nicolejms The hardcoded .terraform/modules breaks if TF_DATA_DIR is set (tfexec inherits the pod env). Pre-existing, out of scope here, but flagging as latent tech debt.
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Description
This improves Terraform recipe inspection so a missing downloaded module directory, missing subdirectory, or module directory without Terraform configuration files returns an actionable error:
The Terraform configuration in location <templatePath> is not found.Malformed Terraform configuration still flows through the existing
tfconfig.LoadModulediagnostics aserror loading the module: ....Type of change
Fixes: #9477
Contributor checklist
Please verify that the PR meets the following requirements, where applicable:
eng/design-notes/in this repository, if new APIs are being introduced.Verification
git diff --checkdocker run --rm golang:1.26.4 go versiondocker run --rm --user "$(id -u):$(id -g)" -v "$PWD":/repo -w /repo golang:1.26.4 gofmt -w pkg/recipes/terraform/module.go pkg/recipes/terraform/module_test.godocker run --rm --user "$(id -u):$(id -g)" -v "$PWD":/repo -w /repo -e HOME=/tmp -e GOCACHE=/tmp/gocache -e GOMODCACHE=/tmp/gomodcache golang:1.26.4 go test ./pkg/recipes/terraform -run Test_InspectTFModuleConfigdocker run --rm --user "$(id -u):$(id -g)" -v "$PWD":/repo -w /repo -e HOME=/tmp -e GOCACHE=/tmp/gocache -e GOMODCACHE=/tmp/gomodcache golang:1.26.4 go test ./pkg/recipes/terraform ./pkg/recipes/driver/terraformAI assistance disclosure
This PR was prepared with AI assistance and reviewed locally before submission.