feat(docker): publish release images on stable tags

.github/workflows/docker-release.yml

@@ -0,0 +1,74 @@
+name: Publish Docker Image
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+concurrency:
+  group: docker-release-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  publish:
+    if: startsWith(github.ref, 'refs/tags/v') && !contains(github.ref_name, '-')
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout release tag
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Derive image metadata
+        id: meta
+        run: |
+          VERSION="${GITHUB_REF_NAME#v}"
+          MINOR="${VERSION%.*}"
+          MAJOR="${VERSION%%.*}"
+          OWNER_LOWER=$(echo "${GITHUB_REPOSITORY_OWNER}" | tr '[:upper:]' '[:lower:]')
+          IMAGE="ghcr.io/${OWNER_LOWER}/ccs-dashboard"
+
+          {
+            echo "version=${VERSION}"
+            echo "minor=${MINOR}"
+            echo "major=${MAJOR}"
+            echo "image=${IMAGE}"
+          } >> "$GITHUB_OUTPUT"
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push release image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.version }}
+            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.minor }}
+            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.major }}
+            ${{ steps.meta.outputs.image }}:latest
+          labels: |
+            org.opencontainers.image.title=ccs-dashboard
+            org.opencontainers.image.description=CCS Dashboard container image
+            org.opencontainers.image.url=https://github.com/${{ github.repository }}
+            org.opencontainers.image.source=https://github.com/${{ github.repository }}
+            org.opencontainers.image.version=${{ steps.meta.outputs.version }}
+            org.opencontainers.image.revision=${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

README.md

@@ -55,7 +55,7 @@ ccs config
 
 Dashboard updates hub: `http://localhost:3000/updates`
 
-Want to run the dashboard in Docker? See `docker/README.md`.
+Want to run the dashboard in Docker or pull the prebuilt image? See `docker/README.md`.
 
 ### 3. Configure Your Accounts
 

docker/README.md

@@ -13,7 +13,24 @@ Persistent config, restart on reboot.
 
 <br>
 
-## Quick Start (Docker Run)
+## Quick Start (Prebuilt Image)
+
+Pull the latest stable release image from GitHub Container Registry:
+
+```bash
+docker run -d \
+  --name ccs-dashboard \
+  --restart unless-stopped \
+  -p 3000:3000 \
+  -p 8317:8317 \
+  -e CCS_PORT=3000 \
+  -v ccs_home:/home/node/.ccs \
+  ghcr.io/kaitranntt/ccs-dashboard:latest
+```
+
+Release-tag images are also published as `ghcr.io/kaitranntt/ccs-dashboard:<version>`.
+
+## Build Locally
 
 ```bash
 docker build -f docker/Dockerfile -t ccs-dashboard:latest .