.github/workflows/docker-build-push.yaml

name: Docker Build and Push ghcr.io

on:
  push:
    branches:
        - main
        - release/*

jobs:
  build-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    env:
      REGISTRY: ghcr.io
      REPOSITORY: lokumai/openai-openapi-template
      UID: 1000
      USER: chameleon
    steps:
      - name: Checkout
        uses: actions/checkout@v3
    
      - name: Login to ghcr.io
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Determine image tag
        id: determine_tag
        run: |
          BRANCH_NAME=${{ github.ref_name }}
          echo "BRANCH_NAME=${BRANCH_NAME}" >> $GITHUB_ENV

          if [[ "$BRANCH_NAME" == "main" ]]; then
            echo "TAG=latest" >> $GITHUB_ENV
          elif [[ "$BRANCH_NAME" =~ ^release/v([0-9]+\.[0-9]+\.[0-9]+)$ ]]; then
            echo "TAG=${BASH_REMATCH[1]}" >> $GITHUB_ENV
          else
            echo "Invalid branch name format for release (expected: release/vX.Y.Z)"
            exit 1
          fi



      - name: Build docker image
        run: |
          docker build \
            --tag app:latest \
            --build-arg UID=${{ env.UID }} \
            --build-arg USER=${{ env.USER }} \
            .

          docker tag app:latest ${REGISTRY}/${REPOSITORY}:${TAG}
          docker tag app:latest ${REGISTRY}/${REPOSITORY}:latest

      - name: Push docker image
        run: |
          docker push ${REGISTRY}/${REPOSITORY}:${TAG}
          docker push ${REGISTRY}/${REPOSITORY}:latest

      - name: Clean up docker images
        run: |
          docker rmi -f app:latest
          docker rmi -f ${REGISTRY}/${REPOSITORY}:${TAG}
          docker rmi -f ${REGISTRY}/${REPOSITORY}:latest