Add container build and publish to ghcr.io

.github/workflows/docker-publish.yaml

@@ -0,0 +1,49 @@
+name: Docker
+
+on:
+  push:
+    tags: ["*.*.*"]
+
+env:
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Retrieve tag name
+        id: tag
+        run: echo ::set-output name=TAG::${GITHUB_REF/refs\/tags\//}
+
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log into registry ghcr.io
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@v3
+        with:
+          tags: ${{ steps.tag.outputs.TAG }}
+          platforms: linux/amd64,linux/arm64
+          push: true
+          labels: ${{ steps.meta.outputs.labels }}