Add publish-workflow.yaml

.github/workflows/publish-workflow.yaml

@@ -0,0 +1,33 @@
+name: Publish Docker image
+
+on:
+  push:
+    tags:
+      - '**'
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Get metadata for Docker
+        id: metadata
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.metadata.outputs.tags }}
+          labels: ${{ steps.metadata.outputs.labels }}