name: Docker Snapshot

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up docker tag
        id: vars
        run: echo ::set-output name=BUILD_DATE::$(date '+%Y%m%d')
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          file: Dockerfile
          context: .
          platforms: linux/amd64,linux/arm64/v8,linux/arm/v7,linux/arm/v6
          push: true
          tags:  |
            ${{ secrets.DOCKER_USERNAME }}/ezbookkeeping:SNAPSHOT-${{ steps.vars.outputs.BUILD_DATE }}
            ${{ secrets.DOCKER_USERNAME }}/ezbookkeeping:latest-snapshot