# Docker Hub CI/CD for Multi Arch Images...
name: buildx

on:
  pull_request:
    branches:
      - master
      - releases/*
      - actions
  push:
    branches:
      - master
      - releases/*
      - actions
    tags:

jobs:
  buildx:
    runs-on: ubuntu-latest
    steps:
      -
        name: Prepare
        id: prepare
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo ::set-output name=version::${GITHUB_REF#refs/tags/v}
          else
            echo ::set-output name=version::snapshot
          fi
          echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          echo ::set-output name=docker_platforms::linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/386
      -
        name: Checkout
        uses: actions/checkout@v1
      -
        name: Set up Docker Buildx
        id: buildx
        uses: crazy-max/ghaction-docker-buildx@v1
        with:
          version: latest
      -
        name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}
      -
        name: Run Buildx (Build only - Won't push if build fails...)
        run: |
          docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=false" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --build-arg "VCS_REF=${GITHUB_SHA::8}" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --file Dockerfile .
      -
        name: Docker Login
        if: success()
        env:
          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
        run: |
          echo "${DOCKER_PASSWORD}" | docker login --username "${DOCKER_USERNAME}" --password-stdin
      -
        name: Run Buildx (Push to Docker Hub)
        run: |
          docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=true" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --build-arg "VCS_REF=${GITHUB_SHA::8}" \
            --build-arg "VERSION=${{ steps.prepare.outputs.version }}" \
            --file Dockerfile .
      -
        name: Clear
        if: always()
        run: |
          rm -f ${HOME}/.docker/config.json