build-docker-image-automatic.yml

# This workflow builds an OpenFAST docker image for the linux/amd64 and linux/aarch64 architectures on merge into
# `main` from a release candidate branch. The image is tagged both with "latest" and the version extracted from the
# release candidate branch's name (e.g. "rc-3.5.3") before being pushed to the `nrel/openfast` repository. The build
# cache is stored in GitHub actions.
name: build-docker-image-automatic

on:
  release:
    types:
      - released

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    timeout-minutes: 300
    env:
      DOCKERFILE_PATH: share/docker/Dockerfile
      DOCKERHUB_REPOSITORY: nrel/openfast
      GH_REGISTRY: ghcr.io/OpenFAST/openfast
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      # Commenting out until we get the NREL DockerHub credentials
      # - name: Log in to DockerHub
      #   uses: docker/login-action@v3
      #   with:
      #     username: ${{ secrets.DOCKERHUB_USERNAME }}
      #     password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.GH_REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract tag from release candidate branch name
        id: extract-tag
        run: echo "openfast-tag=$(expr substr "${{ github.head_ref }}" 4 100)" >> $GITHUB_OUTPUT

      - name: Build and push to registry
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ${{ env.DOCKERFILE_PATH }}
          platforms: linux/aarch64
          tags: |
            ${{ env.GH_REGISTRY }}:${{ steps.extract-tag.outputs.openfast-tag }},${{ env.DOCKERHUB_REPOSITORY }}:latest
# ${{ env.DOCKERHUB_REPOSITORY }}:${{ steps.extract-tag.outputs.openfast-tag }},${{ env.DOCKERHUB_REPOSITORY }}:latest
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max