Add github action for publishing image

.github/workflows/publishImage.yml

@@ -0,0 +1,81 @@
+name: Publish Docker image to Dockerhub
+
+on:
+  workflow_dispatch:
+  push:
+# uncomment to auto build when commits are pushed to listed branches
+#    branches:
+#      - 'master'
+    tags:
+      - '*.*.*'
+    # don't trigger if just updating docs
+    paths-ignore:
+      - 'README.md'
+      - '.github/**'
+
+jobs:
+  push_to_registry:
+    name: Build and push container images
+    if: ${{ github.event_name != 'pull_request' && (vars.GHCR_IMAGE_NAME != '' || vars.DOCKERHUB_IMAGE_NAME != '' ) }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - dockerfile: ./Dockerfile
+            suffix: ''
+            platforms: 'linux/amd64,linux/arm64'
+    # https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+# uncomment to enable dockerhub
+      
+#      - name: Log in to Docker Hub
+#        uses: docker/login-action@v3
+#        with:
+#          username: ${{ secrets.DOCKER_USERNAME }}
+#          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          # add to images list to enable dockerhub ${{ vars.DOCKERHUB_IMAGE_NAME }}
+          images: |
+            ${{ vars.GHCR_IMAGE_NAME }}
+          # generate Docker tags based on the following events/attributes
+          # https://github.com/docker/metadata-action/issues/247#issuecomment-1511259674 for NOT is default branch, eventually
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}},suffix=${{ matrix.suffix }}
+            type=ref,event=branch,enable=${{ !endsWith(github.ref, 'master') }},suffix=${{ matrix.suffix }}
+            type=semver,pattern={{version}},suffix=${{ matrix.suffix }}
+          flavor: |
+            latest=false
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ${{ matrix.dockerfile }}
+          push: ${{ !env.ACT}}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ matrix.platforms }}