Docker release action

Author: peteski22

.github/workflows/release-docker.yaml

@@ -0,0 +1,87 @@
+name: Build and Publish Docker Image
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Release tag (e.g. v0.0.1)'
+        required: true
+  workflow_run:
+    workflows: ["Release Binary"]
+    types:
+      - completed
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    strategy:
+      matrix:
+        platform: [linux/amd64, linux/arm64]
+
+    steps:
+      - name: Set release tag
+        run: |
+          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+            echo "RELEASE_TAG=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
+          elif [[ "${{ github.event_name }}" == "workflow_run" ]]; then
+            echo "RELEASE_TAG=${{ github.event.workflow_run.head_branch }}" >> $GITHUB_ENV
+          else
+            echo "RELEASE_TAG=unknown" >> $GITHUB_ENV
+          fi
+
+      - name: Validate RELEASE_TAG
+        run: |
+          if [[ -z "$RELEASE_TAG" || "$RELEASE_TAG" == "unknown" ]]; then
+          echo "Missing or invalid RELEASE_TAG"
+          exit 1
+          fi
+
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+
+      - name: Login to DockerHub
+        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Transform platform for artifact name
+        run: |
+          OS="${{ matrix.platform%%/* }}"
+          ARCH="${{ matrix.platform##*/ }}"
+          # Capitalize OS first letter
+          OS="$(tr '[:lower:]' '[:upper:]' <<< ${OS:0:1})${OS:1}"
+          # Map arch amd64 → x86_64
+          if [ "$ARCH" = "amd64" ]; then ARCH="x86_64"; fi
+          SAFE_PLATFORM="${OS}_${ARCH}"
+          echo "SAFE_PLATFORM=$SAFE_PLATFORM" >> $GITHUB_ENV
+
+      - name: Download release artifact
+        run: |
+          TAG="${RELEASE_TAG}"
+          ARCHIVE="mcpd_${SAFE_PLATFORM}.tar.gz"
+          curl -L -o $ARCHIVE "https://github.com/${GITHUB_REPOSITORY}/releases/download/$TAG/$ARCHIVE"
+          tar -xf $ARCHIVE -C .
+
+      - name: Build & push Docker image
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          push: true
+          tags: |
+            mzdotai/mcpd:${{ env.RELEASE_TAG }}-${{ env.SAFE_PLATFORM }}
+            mzdotai/mcpd:latest
+          build-args: |
+            MCPD_VERSION=${{ env.RELEASE_TAG }}
+          file: ./Dockerfile

Dockerfile

@@ -11,12 +11,14 @@ FROM ghcr.io/astral-sh/uv:0.7.20 AS uv-builder
 # ==============================================================================
 FROM node:current-alpine3.22
 
+ARG MCPD_VERSION=unknown
+
 # --- Metadata ---
 # The version label should be dynamically overridden in a CI/CD pipeline
 # (e.g., --label "org.opencontainers.image.version=${GIT_TAG}").
 LABEL org.opencontainers.image.authors="Mozilla AI <[email protected]>"
 LABEL org.opencontainers.image.description="A container for the mcpd application."
-LABEL org.opencontainers.image.version="1.0.0"
+LABEL org.opencontainers.image.version=$MCPD_VERSION
 
 ARG MCPD_USER=mcpd
 ARG MCPD_HOME=/home/$MCPD_USER

internal/cmd/basecmd.go

@@ -23,7 +23,7 @@ var (
 
 // Version is used by other packages to retrieve the build version of mcpd.
 func Version() string {
-	return fmt.Sprintf("mcpd %s (%s), built %s", version, commit, date)
+	return fmt.Sprintf("mcpd v%s (%s), built %s", version, commit, date)
 }
 
 // AppName returns the name of the mcpd application.