Refactor image building to use committed source and a release workflow

.gitattributes

@@ -1,2 +1,20 @@
 # Patches are applied on files extracted from a downloaded zip file. All these files use LF line endings.
 *.patch text eol=lf
+
+# Spring Initializr generates source files with LF line endings (Linux server).
+# Explicit rules here prevent unexpected diffs when update-project.ps1 regenerates source on Windows,
+# where core.autocrlf would otherwise convert committed files to CRLF on checkout.
+**/source/**/*.java     text eol=lf
+**/source/**/*.gradle   text eol=lf
+**/source/**/*.properties text eol=lf
+**/source/**/*.md       text eol=lf
+**/source/**/*.txt      text eol=lf
+**/source/**/*.xml      text eol=lf
+**/source/**/gradlew    text eol=lf
+**/source/**/gradlew.bat text eol=crlf
+**/source/**/*.jar      binary
+
+# Customizations are appended/overlaid onto the generated (LF) source by update-project.ps1,
+# so keep them LF to avoid introducing CRLF when regenerating on Windows.
+**/customizations/build.gradle.append text eol=lf
+**/customizations/overlay/**/*.java   text eol=lf

.github/workflows/build-image.yaml

@@ -0,0 +1,97 @@
+name: Build Image
+
+on:
+  workflow_call:
+    inputs:
+      image:
+        description: 'Image name (for example: config-server)'
+        required: true
+        type: string
+      description:
+        description: 'Human-readable image description for PR comments'
+        required: true
+        type: string
+
+jobs:
+  build-push:
+    name: Build and push image
+    runs-on: ubuntu-latest
+    env:
+      TAG: ${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.number) || 'edge' }}
+      REGISTRY: ${{ vars.DOCKER_REGISTRY }}
+
+    steps:
+    - name: Git checkout
+      uses: actions/checkout@v6
+      with:
+        persist-credentials: false
+
+    - name: Read image config
+      id: config
+      shell: bash
+      run: echo "port=$(cat '${{ inputs.image }}/metadata/PORT' | tr -d '[:space:]')" >> $GITHUB_OUTPUT
+
+    - name: Set up JDK 25
+      if: inputs.image != 'uaa-server'
+      uses: actions/setup-java@v5
+      with:
+        distribution: temurin
+        java-version: '25'
+        cache: gradle
+
+    - name: Build image
+      shell: pwsh
+      run: ./build.ps1 -Name '${{ inputs.image }}' -Registry '${{ env.REGISTRY }}' -Tag '${{ env.TAG }}'
+
+    - name: Smoke test image
+      shell: pwsh
+      run: ./smoke-test.ps1 -Name '${{ inputs.image }}' -Registry '${{ env.REGISTRY }}' -Tag '${{ env.TAG }}'
+
+    - name: Login to container registry
+      uses: docker/login-action@v4
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - name: Push image
+      run: docker push ${{ env.REGISTRY }}/${{ inputs.image }}:${{ env.TAG }}
+
+    - name: Post or update PR comment with image run instructions
+      uses: actions/github-script@v9
+      if: ${{ github.event_name == 'pull_request' }}
+      with:
+        script: |
+          const marker = '<!-- IMAGE_INSTRUCTIONS_${{ inputs.image }} -->';
+          const body = `${marker}
+          To run the ${{ inputs.description }} image built for this pull request:
+          \`\`\`bash
+          docker run --rm -d --pull=always -p ${{ steps.config.outputs.port }}:${{ steps.config.outputs.port }} --name ${{ inputs.image }}-pr ${{ env.REGISTRY }}/${{ inputs.image }}:${{ env.TAG }}
+          \`\`\``;
+
+          const { data: comments } = await github.rest.issues.listComments({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            issue_number: context.issue.number,
+            per_page: 100,
+          });
+
+          const existingComment = comments.find(comment =>
+            comment.user.login === 'github-actions[bot]' && comment.body.startsWith(marker)
+          );
+
+          if (existingComment) {
+            await github.rest.issues.updateComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              comment_id: existingComment.id,
+              body: body,
+            });
+          } else {
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: body,
+            });
+          }

.github/workflows/build_config_server.yaml

@@ -4,16 +4,18 @@ on:
   pull_request:
     paths:
     - '.github/workflows/build_config_server.yaml'
-    - 'config-server/metadata/*'
-    - 'config-server/patches/*'
+    - '.github/workflows/build-image.yaml'
+    - 'config-server/**'
+    - '!config-server/README.md'
     - 'build.ps1'
   push:
     branches:
     - main
     paths:
     - '.github/workflows/build_config_server.yaml'
-    - 'config-server/metadata/*'
-    - 'config-server/patches/*'
+    - '.github/workflows/build-image.yaml'
+    - 'config-server/**'
+    - '!config-server/README.md'
     - 'build.ps1'
 
 concurrency:
@@ -22,70 +24,12 @@ concurrency:
 
 permissions:
   contents: read
-  pull-requests: 'write'
-
-env:
-  IMAGE_NAME: config-server
-  REGISTRY: ${{ vars.DOCKER_REGISTRY }}
+  pull-requests: write
 
 jobs:
-  build-push:
-    name: Build and push image
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Build Image
-      run: ./build.ps1 -Name '${{ env.IMAGE_NAME }}' -Registry '${{ env.REGISTRY }}' -Tag '${{ env.TAG }}'
-      shell: pwsh
-      env:
-        TAG: ${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.number) || '' }}
-
-    - name: Login to container registry
-      uses: docker/login-action@v3
-      with:
-        registry: ${{ vars.DOCKER_REGISTRY }}
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-
-    - name: Push image
-      run: docker push --all-tags ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-
-    - name: Post or update PR comment with image run instructions
-      uses: actions/github-script@v7
-      if: ${{ github.event_name == 'pull_request' }}
-      with:
-        script: |
-          const marker = '<!-- IMAGE_INSTRUCTIONS_CONFIG_SERVER -->';
-          const body = `${marker}
-          To run the Spring Cloud Config Server image built for this pull request:
-          \`\`\`bash
-          docker run --rm -d --pull=always -p 8888:8888 --name config-pr steeltoe.azurecr.io/config-server:pr-${{ github.event.number }}
-          \`\`\``;
-
-          const { data: comments } = await github.rest.issues.listComments({
-            owner: context.repo.owner,
-            repo: context.repo.repo,
-            issue_number: context.issue.number,
-            per_page: 100,
-          });
-
-          const existingComment = comments.find(comment =>
-            comment.user.login === 'github-actions[bot]' && comment.body.startsWith(marker)
-          );
-
-          if (existingComment) {
-            await github.rest.issues.updateComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              comment_id: existingComment.id,
-              body: body,
-            });
-          } else {
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: body,
-            });
-          }
+  build:
+    uses: ./.github/workflows/build-image.yaml
+    with:
+      image: config-server
+      description: Spring Cloud Config Server
+    secrets: inherit

.github/workflows/build_eureka_server.yaml

@@ -4,16 +4,18 @@ on:
   pull_request:
     paths:
     - '.github/workflows/build_eureka_server.yaml'
-    - 'eureka-server/metadata/*'
-    - 'eureka-server/patches/*'
+    - '.github/workflows/build-image.yaml'
+    - 'eureka-server/**'
+    - '!eureka-server/README.md'
     - 'build.ps1'
   push:
     branches:
     - main
     paths:
     - '.github/workflows/build_eureka_server.yaml'
-    - 'eureka-server/metadata/*'
-    - 'eureka-server/patches/*'
+    - '.github/workflows/build-image.yaml'
+    - 'eureka-server/**'
+    - '!eureka-server/README.md'
     - 'build.ps1'
 
 concurrency:
@@ -22,70 +24,12 @@ concurrency:
 
 permissions:
   contents: read
-  pull-requests: 'write'
-
-env:
-  IMAGE_NAME: eureka-server
-  REGISTRY: ${{ vars.DOCKER_REGISTRY }}
+  pull-requests: write
 
 jobs:
-  build-push:
-    name: Build and push image
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Build Image
-      run: ./build.ps1 -Name '${{ env.IMAGE_NAME }}' -Registry '${{ env.REGISTRY }}' -Tag '${{ env.TAG }}'
-      shell: pwsh
-      env:
-        TAG: ${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.number) || '' }}
-
-    - name: Login to container registry
-      uses: docker/login-action@v3
-      with:
-        registry: ${{ vars.DOCKER_REGISTRY }}
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-
-    - name: Push image
-      run: docker push --all-tags ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-
-    - name: Post or update PR comment with image run instructions
-      uses: actions/github-script@v7
-      if: ${{ github.event_name == 'pull_request' }}
-      with:
-        script: |
-          const marker = '<!-- IMAGE_INSTRUCTIONS_EUREKA_SERVER -->';
-          const body = `${marker}
-          To run the Eureka server image built for this pull request:
-          \`\`\`bash
-          docker run --rm -d --pull=always -p 8761:8761 --name eureka-pr steeltoe.azurecr.io/eureka-server:pr-${{ github.event.number }}
-          \`\`\``;
-
-          const { data: comments } = await github.rest.issues.listComments({
-            owner: context.repo.owner,
-            repo: context.repo.repo,
-            issue_number: context.issue.number,
-            per_page: 100,
-          });
-
-          const existingComment = comments.find(comment =>
-            comment.user.login === 'github-actions[bot]' && comment.body.startsWith(marker)
-          );
-
-          if (existingComment) {
-            await github.rest.issues.updateComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              comment_id: existingComment.id,
-              body: body,
-            });
-          } else {
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: body,
-            });
-          }
+  build:
+    uses: ./.github/workflows/build-image.yaml
+    with:
+      image: eureka-server
+      description: Spring Cloud Netflix Eureka Server
+    secrets: inherit