build.yml

name: Build

on:
  pull_request:
  push:
    branches:
      - main
  schedule:
    - cron: '0 0 * * 1-6'
    - cron: '0 0 * * 0' # runs with no-cache
  workflow_dispatch:
    inputs:
      no-cache:
        description: 'Skip Docker cache'
        type: boolean
        default: false

jobs:
  setup:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Find Dockerfiles
        id: scan
        run: echo "dockerfiles=$(find . -name Dockerfile | cut -c3- | jq -R -s -c 'split("\n")[:-1]')" >> "$GITHUB_OUTPUT"
    outputs:
      dockerfiles: ${{ steps.scan.outputs.dockerfiles }}
  build:
    runs-on: ubuntu-latest
    needs: setup
    strategy:
      fail-fast: false
      matrix:
        dockerfile: ${{ fromJSON(needs.setup.outputs.dockerfiles) }}
    steps:
      - uses: actions/checkout@v3
      - name: Get image metadata
        id: meta
        run: |
          tags=$(grep "tags=" ${{ matrix.dockerfile }} | cut -d "=" -f 2)
          echo "context=$(dirname "${{ matrix.dockerfile }}")" >> "$GITHUB_OUTPUT"
          echo "tags=${tags}" >> "$GITHUB_OUTPUT"
          echo "cache=$(echo "$tags" | cut -d "," -f 1)" >> "$GITHUB_OUTPUT"
      - uses: docker/setup-qemu-action@v2
      - uses: docker/setup-buildx-action@v2
      - uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - uses: docker/build-push-action@v4
        with:
          context: ${{ steps.meta.outputs.context }}
          pull: ${{ github.event_name != 'pull_request' }}
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          platforms: linux/amd64,linux/arm64/v8
          cache-from: type=registry,ref=${{ steps.meta.outputs.cache }}
          cache-to: type=inline
          no-cache: ${{ github.event.schedule == '0 0 * * 0' || (github.event_name == 'workflow_dispatch' && inputs.no-cache) }}
  dockerhub:
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name != 'pull_request'
    steps:
      - uses: actions/checkout@v4
      - uses: peter-evans/dockerhub-description@e98e4d1628a5f3be2be7c231e50981aee98723ae # pin@v4
        with:
          repository: articulate/elixir
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          short-description: ${{ github.event.repository.description }}
  notify:
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name != 'pull_request'
    steps:
      - run: curl ${{ secrets.DMS_URL }}