misc: build & publish images

.github/workflows/docker-publish.yml

@@ -0,0 +1,38 @@
+name: Docker Image CI
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: [actions/checkout](https://github.com)@v4
+
+      - name: Log in to GHCR
+        uses: [docker/login-action](https://github.com)@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: [docker/metadata-action](https://github.com)@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
+      - name: Build and push Docker image
+        uses: [docker/build-push-action](https://github.com/docker/build-push-action)@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}