build docker image via jib

.github/workflows/mfdzbuild.yml

@@ -38,32 +38,44 @@ jobs:
           mvn --batch-mode jacoco:prepare-agent test jacoco:report -P prettierCheck -Dprettier.nodePath=node -Dprettier.npmPath=npm
           mvn --batch-mode package -Dmaven.test.skip -P prettierSkip
 
-      - name: set up Docker buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: log into the GitHub Container Registry
-        uses: docker/login-action@v3
+  container-image:
+    if: github.repository_owner == 'mfdz' && github.event_name == 'push' && (github.ref == 'refs/heads/aachen')
+    runs-on: ubuntu-latest
+    needs:
+      - build-linux
+    steps:
+      - uses: actions/checkout@v4
         with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ github.token }}
-
-      - name: set env vars for repo, branch and image tag
-        run: |
-          echo "DATE_TAG=$(date +%Y-%m-%dT%H-%M)" >> $GITHUB_ENV
-          echo "BRANCH=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_ENV
-          echo "REPO=${GITHUB_REPOSITORY@L}" >> $GITHUB_ENV
-      
-
-      - name: build and push Docker image
-        if: github.event_name == 'push' && (github.ref == 'refs/heads/aachen')
-        uses: docker/build-push-action@v6
+          fetch-depth: 0
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: temurin
+          cache: maven
+      - uses: actions/setup-node@v4
         with:
-          push: true
-          tags: |
-            ghcr.io/${{ env.REPO }}:${{ env.BRANCH }}
-            ghcr.io/${{ env.REPO }}:${{ env.BRANCH }}-${{ env.DATE_TAG }}
-          platforms: linux/amd64,linux/arm64
-          # https://docs.docker.com/build/ci/github-actions/cache/#cache-backend-api
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          node-version: 18
+      - name: Build container image with Jib, push to Dockerhub
+        env:
+          CONTAINER_REPO: docker.io/mfdz/opentripplanner
+          CONTAINER_REGISTRY_USER: ${{ secrets.DOCKER_USER }}
+          CONTAINER_REGISTRY_PASSWORD: ${{ secrets.DOCKER_AUTH }}
+        run: |
+          # we give the container two tags
+          #   - "aachen-latest"
+          #   - a string like "aachen-2.3_2022-12-12T21-38"
+          
+          version_with_snapshot=`mvn -q help:evaluate -Dexpression=project.version -q -DforceStdout`
+          version=${version_with_snapshot/-SNAPSHOT/}
+          
+          image_version=${version}
+          
+          ## if the Maven version contains SNAPSHOT, then add date to tag
+          if [[ $version_with_snapshot == *"SNAPSHOT"* ]]; then
+            image_date=`date +%Y-%m-%dT%H-%M`
+            image_version="${version}_${image_date}"
+            echo "Maven version ${version_with_snapshot} contains SNAPSHOT, adding date to container image tag"
+          fi
+          
+          mvn --batch-mode -P prettierSkip compile com.google.cloud.tools:jib-maven-plugin:build -Djib.to.tags=aachen-latest,aachen-$image_version