build-image-signed-cosign-static.yml

name: image-signed-cosign(static)
on:
  workflow_dispatch:

env:
  REGISTRY: ghcr.io

jobs:
  build:

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744

      - name: Install Cosign
        uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 #v3.1.1
        with:
          cosign-release: 'v2.1.1'

      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - id: lower-repo
        run: |
         echo "IMAGE_NAME=$(echo '${{ github.repository }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV

      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a
        with:
          push: true
          tags: ghcr.io/${{ env.IMAGE_NAME }}:static
          context: .
          file : Dockerfile.static


      - name: Sign the published Docker image
        env:
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        run: |
          echo "ghcr.io/${{ env.IMAGE_NAME }}:static" | xargs -I {} cosign sign --yes {}@${DIGEST}