container_description.yml

---
name: Push README to Docker Hub
on:
  push:
    paths:
      - "README.md"
      - "README-containers.md"
      - ".github/workflows/container_description.yml"
    branches: [ main, master ]

permissions:
  contents: read

jobs:
  PushDockerHubReadme:
    runs-on: ubuntu-latest
    name: Push README to Docker Hub
    if: github.repository_owner == 'prometheus' || github.repository_owner == 'prometheus-community' # Don't run this workflow on forks.
    steps:
      - name: git checkout
        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
      - name: Set docker hub repo name
        run: echo "DOCKER_REPO_NAME=$(make docker-repo-name)" >> $GITHUB_ENV
      - name: Push README to Dockerhub
        uses: christian-korneck/update-container-description-action@d36005551adeaba9698d8d67a296bd16fa91f8e8 # v1
        env:
          DOCKER_USER: ${{ secrets.DOCKER_HUB_LOGIN }}
          DOCKER_PASS: ${{ secrets.DOCKER_HUB_PASSWORD }}
        with:
          destination_container_repo: ${{ env.DOCKER_REPO_NAME }}
          provider: dockerhub
          short_description: ${{ env.DOCKER_REPO_NAME }}
          # Empty string results in README-containers.md being pushed if it
          # exists. Otherwise, README.md is pushed.
          readme_file: ''