docker-publish-nightly.yml

name: Nightly Docker

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  schedule:
    - cron: '0 0 * * *'
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

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

jobs:
  build:

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Lint Dockerfile
        uses: hadolint/hadolint-action@master
        with:
          dockerfile: "Dockerfile"
          ignore: 'DL3008'
          #ignore: 'DL3006,DL3008' # DL3006: false positive, rust image has a tag

      # Login against a Docker registry except on PR
      # https://github.com/docker/#-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/#-action@v1
        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@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          labels: |
            org.opencontainers.image.title=Coupe
            org.opencontainers.image.description=Coupe Image
            org.opencontainers.image.vendor=CEA
          tags: |
            type=raw,value=nightly

      # Build and push Docker image with Buildx
      - name: Build and push nightly Docker image
        uses: docker/build-push-action@v5
        with:
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}