build.yml

name: Docker

on:
  push:
    branches:
      - main

env:
  IMAGE_TAG: latest
  IMAGE_NAME: k8s-attack-simulation

jobs:
  build_and_push:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: export branch name
        run: echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
      
      - name: Login to GHCR
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GH_TOKEN }}
      
      - name: Build image and push
        uses: docker/build-push-action@v3
        with:
          file: Dockerfile
          push: true
          tags: |
            ghcr.io/${{ github.repository }}/${{ env.IMAGE_NAME }}:${{ env.BRANCH }}
            ghcr.io/${{ github.repository }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
          labels: 
            org.opencontainers.image.source=https://github.com/${{ github.repository }}