Enable morgan logging in azure deployed environments (#24066)

* enable morgan logging in azure deployed environments

* include note about heroku logging

Author: mikesurowiec

middleware/index.js

@@ -64,8 +64,9 @@ import next from './next.js'
 import renderPage from './render-page.js'
 import assetPreprocessing from './asset-preprocessing.js'
 
-const { NODE_ENV } = process.env
+const { DEPLOYMENT_ENV, NODE_ENV } = process.env
 const isDevelopment = NODE_ENV === 'development'
+const isAzureDeployment = DEPLOYMENT_ENV === 'azure'
 const isTest = NODE_ENV === 'test' || process.env.GITHUB_ACTIONS === 'true'
 
 // Catch unhandled promise rejections and passing them to Express's error handler
@@ -79,8 +80,14 @@ export default function (app) {
   if (!isTest) app.use(timeout)
   app.use(abort)
 
-  // *** Development tools ***
-  app.use(morgan('dev', { skip: (req, res) => !isDevelopment }))
+  // *** Request logging ***
+  // Enabled in development and azure deployed environments
+  // Not enabled in Heroku because the Heroku router + papertrail already logs the request information
+  app.use(
+    morgan(isAzureDeployment ? 'combined' : 'dev', {
+      skip: (req, res) => !(isDevelopment || isAzureDeployment),
+    })
+  )
 
   // *** Observability ***
   if (process.env.DD_API_KEY) {