package-publish.yml

name: Build and Package

on:
  push:
    tags: '*'

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@v3

      - name: Install Cosign
        uses: sigstore/cosign-installer@v3

      - name: Lowercase the repo name
        run: echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}

      # Login against a Docker registry
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      #    tags: type=sha,format=long

      # Build and push Docker image
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      # Sign the Docker image (Using OIDC Token for "keyless signing")
      # https://github.com/sigstore/cosign-installer
      - name: Sign the images with GH OIDC Token
        run:
          COSIGN_REPOSITORY=ghcr.io/${{ env.REPO }}-signatures cosign sign -y
          ghcr.io/${{ env.REPO }}@${{ steps.build-and-push.outputs.DIGEST }}