build-ci-docker.yml

name: Create and publish a Docker CI image

on:
  push:
    paths:
      - .circleci/Dockerfile
      - bin/**
    branches:
      - main
  pull_request:
    paths:
      - .circleci/Dockerfile
      - bin/**
    branches:
      - main
  workflow_dispatch:

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

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=sha
        env:
          DOCKER_METADATA_PR_HEAD_SHA: true

      - name: Build and push Docker image
        if: (github.event_name == 'workflow_dispatch' || github.event_name == 'push') && github.ref == 'refs/heads/main'
        uses: docker/build-push-action@v6
        with:
          context: "${{ github.workspace }}"
          file: "${{ github.workspace }}/.circleci/Dockerfile"
          push: true
          tags: ghcr.io/pulibrary/figgy:ci
          labels: ${{ steps.meta.outputs.labels }}

      - name: Build and push Docker image
        if: (github.event_name == 'workflow_dispatch' || github.event_name == 'pull_request') && github.ref != 'refs/heads/main'
        uses: docker/build-push-action@v6
        with:
          context: "${{ github.workspace }}"
          file: "${{ github.workspace }}/.circleci/Dockerfile"
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}