Create publish.yml

.github/workflows/publish.yml

@@ -0,0 +1,70 @@
+# ref: https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions#upgrading-a-workflow-that-accesses-a-registry-using-a-personal-access-token
+name: Create and publish a Docker image
+
+# Configures this workflow to run every time a change is pushed to the branch called `release-*`.
+# This aligns with the release branching change coming in v1.0.0 for hot fixes.
+on:
+  push:
+    branches: ["release-*"]
+  workflow_dispatch:
+
+# Defines two custom environment variables for the workflow. These are used for the Container
+# registry domain, and a name for the Docker image that this workflow builds.
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # Add support for more platforms with QEMU (optional)
+      # https://github.com/docker/setup-qemu-action
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Uses the `docker/login-action` action to log in to the Container registry registry
+      # using the account and password that will publish the packages. Once published, the
+      # packages are scoped to the account defined here.
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about)
+      # to extract tags and labels that will be applied to the specified image. The `id` "meta"
+      # allows the output of this step to be referenced in a subsequent step. The `images` value
+      # provides the base name for the tags and labels.
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      # This step uses the `docker/build-push-action` action to build the image, based on your
+      # repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages.
+      # It uses the `context` parameter to define the build's context as the set of files located
+      # in the specified path. For more information,
+      # see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the
+      # `docker/build-push-action` repository. It uses the `tags` and `labels` parameters to tag
+      # and label the image with the output from the "meta" step.
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}