name: Build RacketCI Docker Image

on:
  push:
    branches:
      - master
    paths:
      - '.github/images/Dockerfile'
      - '.github/workflows/docker-racketci.yml'

jobs:
  build-image:
    runs-on: ubuntu-18.04

    env:
      IMAGE_NAME: racket-ci
      VERSION: ${{ github.sha }}
      
    steps:
      - uses: actions/checkout@v2
      - name: Build image
        working-directory: ./.github/images
        run: docker build --tag image .
      - name: Log into registry
        run: echo "${{ secrets.DOCKER_TOKEN }}" | docker login -u pmatos --password-stdin
      - name: Push image
        run: |
          IMAGE_ID=racket/$IMAGE_NAME
          docker tag image $IMAGE_ID:$VERSION
          docker push $IMAGE_ID:$VERSION
          docker tag image $IMAGE_ID:latest
          docker push $IMAGE_ID:latest