docker.yml

name: Docker

on: [push, pull_request]
#   push:
#     branches:
#       - master
#       - 'v[0-9]+*'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Build Image
        run: ./script/build.sh latest

  publish:
    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/v'))
    name: Publish
    needs: [ build ]
    runs-on: ubuntu-latest
    steps:
      -
        name: Check Branch
        id: check-branch
        run: |
          if [[ ${{ github.ref }} =~ ^refs/heads/(master|v[0-9]+\.[0-9]+.*)$ ]]; then
              echo ::set-output name=match::true
          fi  # See: https://stackoverflow.com/a/58869470/1123955
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
        with:
          platforms: all
      -
        # https://github.com/docker/setup-buildx-action
        name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          install: true
          version: latest
      -
        name: Builder instance name
        run: echo ${{ steps.buildx.outputs.name }}
      -
        name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}
      -
        name: Login to DockerHub Registry
        run: echo ${{ secrets.DOCKER_PERSONAL_ACCESS_TOKEN }} | docker login -u zixia --password-stdin
        env:
          DOCKER_PERSONAL_ACCESS_TOKEN: ${{ secrets.DOCKER_PERSONAL_ACCESS_TOKEN }}
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Is A Publish Branch
        if: steps.check-branch.outputs.match == 'true'
        run: |
          version=$(cat VERSION)
          majorVer=$(echo "$version" | cut -d. -f1)
          minorVer=$(echo "$version" | cut -d. -f2)
          tag="${majorVer}.${minorVer}"
          docker build \
            --platform linux/386,linux/amd64,linux/arm/v7,linux/arm/v6,linux/arm64 \
            --tag zixia/simple-mail-forwarder:"$tag" \
            --tag zixia/simple-mail-forwarder:latest \
            --push \
            .
      -
        name: Is Not A Publish Branch
        if: steps.check-branch.outputs.match != 'true'
        run: echo 'Not A Publish Branch'