docker.yml

name: Build and Publish Docker Images
on:
  push:

jobs:
  buildmatrix:
    name: Create Build Matrix
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - name: Set up matrix
        id: set-matrix
        run: |
          echo "matrix=$(curl https://download.dokuwiki.org/version | jq -c 'del(.master) | {release: [.[]]}')" >> $GITHUB_OUTPUT

  build:
    needs: buildmatrix
    name: Build Docker Image ${{ matrix.release.date }}
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{fromJson(needs.buildmatrix.outputs.matrix)}}
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: splitbrain
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push
        uses: docker/build-push-action@v5
        with:
          platforms: linux/amd64,linux/arm64,linux/386
          push: true
          cache-from: type=gha, scope=${{ github.workflow }}
          cache-to: type=gha, scope=${{ github.workflow }}
          tags: |
            dokuwiki/dokuwiki:${{ matrix.release.date }}
            dokuwiki/dokuwiki:${{ matrix.release.type }}
          build-args: |
             BRANCH=${{ env.BRANCH }}