docker.yml

name: Docker Image
on:
  release:
    types: [published]
  push:
    branches:
      - master
jobs:
  docker:
    name: Docker publishing
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Get git sha
        id: git_sha
        run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
      - name: Check outputs
        run: echo ${{ steps.git_sha.outputs.sha_short }}
      - name: Fail if no git sha
        run: exit 1
        if: ${{ steps.git_sha.outputs.sha_short == 0 }}
      - 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: ${{ secrets.DOCKER_PASSWORD }}    
      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: textile/powergate:latest,textile/powergate:sha-${{ steps.git_sha.outputs.sha_short }}