build.yml

name: Docker Image CI

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

jobs:

  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    - name: Build the Docker image
      run: docker build . --file Dockerfile --tag ghcr.io/prodyna/deployment-overview:latest

    # if tag, get the tag as variable
    - name: Set env
      run: echo "tag=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

    # if tagged, create docker tag
    - name: Create a tag for the Docker image
      if: github.ref == 'refs/heads/main'
      run: docker tag ghcr.io/prodyna/deployment-overview:latest ghcr.io/prodyna/deployment-overview:${{ env.tag }}

    # if tagged, push the image to the GitHub Container Registry
    - name: Push the Docker image to the GitHub Container Registry
      if: github.ref == 'refs/heads/main'
      run: docker push ghcr.io/prodyna/deployment-overview:${{ env.tag }}