docker-image.yml

name: Build and publish Docker image

on:
  push:
    branches:    
      - "build"
  workflow_dispatch:

env:
  IMAGE_NAME: "ghcr.io/cssuob/society-voting"

concurrency:
  group: build-docker-image
  cancel-in-progress: true

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3
      
    - name: Make image tags
      id: make_tags
      run: |
        echo "::set-output name=LATEST::$IMAGE_NAME:latest"
        echo "::set-output name=VERSIONED::$IMAGE_NAME:$(git rev-parse --short HEAD)"
      
    - name: Build Docker image
      run: docker build . --file Dockerfile --tag ${{ steps.make_tags.outputs.LATEST }} --tag ${{ steps.make_tags.outputs.VERSIONED }}
      
    - name: Login to ghcr.io
      run: echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io --username cssuob --password-stdin
      
    - name: Push image
      run: docker push --all-tags $IMAGE_NAME