Merge pull request #4612 from mozilla/MNTOR-3243

MNTOR-3243: rework release retag

.github/workflows/release_retag.yaml

@@ -0,0 +1,36 @@
+name: Retag and Push Docker Image on Release
+# GH release should always create a tag automatically
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  retag-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the repo
+      uses: actions/checkout@v4
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+
+    - name: Extract metadata (tags, labels) for Docker
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: mozilla/blurts-server
+        tags: type=sha,format=short,prefix=
+
+    - name: Pull Docker image with commit tag
+      run: docker pull ${{ steps.meta.outputs.tags }}
+
+    - name: Tag Docker image with release tag
+      run: docker tag ${{ steps.meta.outputs.tags }} mozilla/blurts-server:${{ github.ref_name }}
+
+    - name: Push Docker image with release tag
+      run: docker push mozilla/blurts-server:${{ github.ref_name }}