feat: add quay.expires-after label and unify build workflow

- Add QUAY_IMAGE_EXPIRY build arg and quay.expires-after label to Dockerfile
- Expiry set to 'never' for main branch and release tags
- Expiry set to '3w' for all other refs (e.g. manual workflow dispatch)
- Remove dev-build.yaml and release-build.yaml
- Add build-push.yaml to handle pushes, releases, and workflow dispatch

Signed-off-by: Arpit Tripathi <arpittripathiayo@gmail.com>

Author: nexpectArpit

.github/workflows/build-push.yaml

@@ -52,6 +52,17 @@ jobs:
             # Manual: git sha as fallback
             type=raw,value=${{ github.sha }},enable=${{ github.event_name == 'workflow_dispatch' }}
 
+      - name: Read quay image expiry
+        id: quay-expiry
+        run: |
+          if [[ "${{ github.ref_name }}" == "main" || "${{ github.ref_type }}" == "tag" && "${{ github.ref_name }}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-.*)?$ ]]; then
+            echo "expiry=never" >> $GITHUB_OUTPUT
+            echo "Setting expiry to 'never' for ref ${{ github.ref_name }}"
+          else
+            echo "expiry=3w" >> $GITHUB_OUTPUT
+            echo "Setting expiry to '3w' for ref ${{ github.ref_name }}"
+          fi
+
       - name: Build and Push Image
         if: github.repository_owner == 'kuadrant'
         uses: docker/build-push-action@v5
@@ -62,6 +73,8 @@ jobs:
           push: true
           provenance: false
           tags: ${{ steps.meta.outputs.tags }}
+          build-args: |
+            QUAY_IMAGE_EXPIRY=${{ steps.quay-expiry.outputs.expiry }}
 
       - name: Print Image URL
         run: |

Dockerfile

@@ -41,5 +41,8 @@ RUN mkdir -p /var/cache/nginx /var/log/nginx /run && \
 COPY --from=builder /usr/src/app/dist/ /usr/share/nginx/html/
 COPY entrypoint.sh /usr/share/nginx/html/entrypoint.sh
 
+ARG QUAY_IMAGE_EXPIRY="never"
+LABEL quay.expires-after=${QUAY_IMAGE_EXPIRY}
+
 USER 1001
 ENTRYPOINT ["/usr/share/nginx/html/entrypoint.sh"]