docker.yml for github build on release branch

.github/workflows/docker.yml

@@ -0,0 +1,51 @@
+name: Docker
+
+on:
+  push:
+    branches:
+      - release/bnb-1.x-fh3.0
+
+env:
+  IMAGE_NAME: bnb
+
+jobs:
+  # Push image to GitHub Packages.
+  push:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build image
+        run: |
+            docker build . \
+            --label "org.opencontainers.image.revision=$(git rev-parse HEAD)" \
+            --label "org.opencontainers.image.version=$(git describe --tags --abbrev=0)" \
+            --label "org.opencontainers.image.licenses=LGPL-3.0,GPL-3.0" \
+            -f ./Dockerfile -t "${IMAGE_NAME}"
+
+      - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository }}
+          
+          # Change all uppercase to lowercase
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+          # Strip "v" prefix from tag name
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+          [ "$VERSION" == "master" ] && VERSION=latest
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
+          docker tag $IMAGE_NAME $IMAGE_ID:latest
+          docker push $IMAGE_ID:$VERSION
+