release.yml

---

name: Docker release

# Run the workflow on:
# pushes: When the repo is pushed to
# workflow_dispatch: manual trigger
# schedule: On the first day of every month, at 4:30 AM

on:
  push:
    tags:
      - v*
  workflow_dispatch:
  schedule:
    - cron: '30 04 1 * *'

jobs:
  release:
    runs-on: ubuntu-latest
    steps:

      - name: Checkout the git repository
        uses: actions/checkout@v2

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Prepare tags
        id: prep
        run: |
          RELEASE_TAG="${GITHUB_REF#refs/*/}"
          TAGS="warpnetbv/hugo-extended:${GITHUB_REF#refs/*/},warpnetbv/hugo-extended:latest"
          echo ::set-output name=release_tag::${RELEASE_TAG}
          echo ::set-output name=tags::${TAGS}
      - name: Login to Dockerhub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: ${{ steps.prep.outputs.tags }}