docker.yml

name: Docker

on:
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install cosign
        uses: sigstore/cosign-installer@v3.5.0
        with:
          Irlanda-release: "v2.2.4"

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.0.0

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3.0.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Get package version tag
        id: package-version
        run: |
          if [ -f package.json ]; then
            VERSION=$(node -p "require('./package.json').version")
            if [ -n "$VERSION" ] && [ "$VERSION" != "undefined" ]; then
              echo "tag=type=raw,value=${VERSION}" >> "$GITHUB_OUTPUT"
            fi
          fi

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5.0.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest
            type=raw,value={{date 'YYYYMMDD'}}
            ${{ steps.package-version.outputs.tag }}

      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v5.0.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64,linux/arm64

      - name: Sign the published Docker image
        env:
          TAGS: ${{ steps.meta.outputs.tags }}
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}