docker-build.yml

name: Docker Image Build

on:
  pull_request:
    types:
      - opened
      - closed
      - edited
      - reopened
      - synchronize

env:
  ORG: opentelekomcloud
  PROJECT: backstage

jobs:
  build:
    if: github.event.pull_request.merged == false
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            "${{ secrets.REGISTRY }}/${{ env.ORG }}/${{ env.PROJECT }}"
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          push: false

  push_if_merged:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            "${{ secrets.REGISTRY }}/${{ env.ORG }}/${{ env.PROJECT }}"
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ secrets.REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          push: true