cleanup_pull_request.yaml

name: 'Cleanup Pull Request'
on:
  pull_request:
    types: [closed]

jobs:
  check-resources:
    name: "Check Resources"
    runs-on: ubuntu-latest
    outputs:
      helm_exists: ${{ steps.check_helm.outputs.exists }}
      namespace_exists: ${{ steps.check_namespace.outputs.exists }}

    steps:
      - name: Kubernetes login
        uses: azure/k8s-set-context@v4
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBE_CONFIG }}

      - name: Check Helm Chart
        id: check_helm
        run: |
          RELEASE_NAME=project-website-pr-${{ github.event.number }}
          if helm list --all --namespace $RELEASE_NAME | grep $RELEASE_NAME; then
            echo "::set-output name=exists::true"
          else
            echo Helm Chart $RELEASE_NAME does not exist
            echo "::set-output name=exists::false"
          fi

      - name: Check Namespace
        id: check_namespace
        run: |
          NAMESPACE=project-website-pr-${{ github.event.number }}
          if kubectl get namespace $NAMESPACE; then
            echo "::set-output name=exists::true"
          else
            echo Namespace $NAMESPACE does not exist
            echo "::set-output name=exists::false"
          fi

  cleanup-pr:
    name: "Cleanup Pull Request"
    runs-on: ubuntu-latest
    needs: check-resources
    if: needs.check-resources.outputs.helm_exists == 'true' || needs.check-resources.outputs.namespace_exists == 'true'
    continue-on-error: true
    permissions:
      contents: read
      packages: write
      actions: write
      pull-requests: write

    steps:
      - name: Kubernetes login
        uses: azure/k8s-set-context@v4
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBE_CONFIG }}

      - name: Delete Helm Chart
        if: needs.check-resources.outputs.helm_exists == 'true'
        run: |
          RELEASE_NAME=project-website-pr-${{ github.event.number }}
          helm delete $RELEASE_NAME --namespace $RELEASE_NAME

      - name: Delete Namespace
        if: needs.check-resources.outputs.namespace_exists == 'true'
        run: |
          NAMESPACE=project-website-pr-${{ github.event.number }}
          kubectl delete namespace $NAMESPACE