publish-images.yaml

name: Build and Push Container Images

on:
  push:
    branches:
      - main
      - release-**
    tags:
      - v*

env:
  REGISTRY: ghcr.io
  REGISTRY_USER: ${{ github.repository_owner }}
  REGISTRY_PATH: ${{ github.repository }}

jobs:
  build-and-publish-images:
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Build images
        run: make images

      - name: Log in to registry
        run: |
          echo "${{ secrets.GITHUB_TOKEN }}" | \
              docker login ${{ env.REGISTRY }} -u ${{ env.REGISTRY_USER }} --password-stdin

      - name: Push images
        run: |
          GITREF=${{ github.ref }}
          IMAGE_LOCATION=${{ env.REGISTRY }}/${{ env.REGISTRY_PATH }}
          cd build/images
          for tarball in *.tar; do
              echo "- Publishing image for tarball $tarball..."
              docker load -i $tarball
              img=${tarball#nri-}; img=${img%-image*}
              sha=${tarball##*-image-}; sha=${sha%.tar}
              echo "  - image:  $img"
              echo "  - digest: $sha"
              echo "  - digging out tag from git ref $GITREF..."
              case $GITREF in
                  refs/tags/v*)
                      tag="${GITREF#refs/tags/v}"
                      ;;
                  refs/heads/main)
                      tag=unstable
                      ;;
                  refs/heads/release-*)
                      tag="${GITREF#refs/heads/release-}-unstable"
                      ;;
                  *)
                      echo "error: can't determine tag."
                      exit 1
                      ;;
              esac
              echo "  - tag: $tag"
              docker tag $sha $IMAGE_LOCATION/nri-$img:$tag
              docker push $IMAGE_LOCATION/nri-$img:$tag
          done