test-on-pr.yaml

name: Test on PR

on:
  # For demo purposes only
  workflow_dispatch:
  pull_request:
    branches: [ "master" ]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  DOCKER_BUILD_RECORD_RETENTION_DAYS: 1
  VCLUSTER_VERSION: v0.21.2

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Authenticate on Google Cloud
        uses: google-github-actions/auth@v2
        with:
          workload_identity_provider: projects/49535911505/locations/global/workloadIdentityPools/github-actions/providers/github-provider
          service_account: github-actions@vcluster-pipeline.iam.gserviceaccount.com
      - name: Set up Google Cloud CLI
        uses: google-github-actions/setup-gcloud@v2
        with:
          version: latest
      - name: Set GKE credentials
        uses: google-github-actions/get-gke-credentials@v2
        with:
          cluster_name: minimal-cluster
          location: europe-west9
      - name: Install vCluster
        run: wget -O vcluster "https://github.com/loft-sh/vcluster/releases/download/${{ env.VCLUSTER_VERSION }}/vcluster-linux-amd64" && chmod u+x vcluster && mv vcluster /usr/local/bin
      - name: Create a vCluster
        run: vcluster create vcluster-pipeline-${{github.run_id}} && exit 0
      - name: Connect to the vCluster
        run: vcluster connect vcluster-pipeline-${{github.run_id}}
      - name: Schedule PostgreSQL
        run: |
          helm repo add bitnami https://charts.bitnami.com/bitnami
          helm dependency build kubernetes/helm
          helm install postgresql kubernetes/helm
      - name: Wait for PostgreSQL to be ready
        run: kubectl wait --for=condition=ready pod -l app.kubernetes.io/name=postgresql --timeout=300s
      - name: Set environment variables from values.yaml
        run: |
          echo "PG_HOST=$(yq .postgresql.fullnameOverride kubernetes/values.yaml)" >> $GITHUB_ENV
          echo "PG_USER=$(yq .postgresql.auth.user kubernetes/values.yaml)" >> $GITHUB_ENV
          echo "PG_PASSWORD=$(yq .postgresql.auth.password kubernetes/values.yaml)" >> $GITHUB_ENV
      - name: Install JRE
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: 21
          cache: maven
      - name: Cache build artifacts
        uses: actions/cache@v3
        with:
          path: target
          key: ${{ runner.os }}-build-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-build-
      - name: Run "unit" tests
        run: >
          ./mvnw -Dspring.r2dbc.username=${{ env.PG_USER }} \
            -Dspring.r2dbc.password=${{ env.PG_PASSWORD }} \
            -Dspring.r2dbc.url=jdbc:postgresql://${{ env.PG_HOST }}:5432/
            -Dspring.flyway.username=${{ env.PG_USER }} \
            -Dspring.flyway.password=${{ env.PG_PASSWORD }} \
            -Dspring.flyway.url=jdbc:postgresql://${{ env.PG_HOST }}:5432 test
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=${{github.run_id}}
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v6
        with:
          context: .
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          push: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
      - name: Set config map from values.yaml
        run: |
          kubectl create configmap postgres-config \
            --from-literal="SPRING_FLYWAY_URL=jdbc:postgresql://${{ env.PG_HOST }}:5432/" \
            --from-literal="SPRING_R2DBC_URL=r2dbc:postgresql://${{ env.PG_HOST }}:5432/" \
            --from-literal="SPRING_R2DBC_USERNAME=${{ env.PG_USER }}" \
            --from-literal="SPRING_R2DBC_PASSWORD=${{ env.PG_PASSWORD }}"
      - name: Create Docker Registry Secret
        run: |
          kubectl create secret docker-registry github-docker-registry \
            --docker-server=${{ env.REGISTRY }} --docker-email="noreply@github.com" \
            --docker-username="${GITHUB_USERNAME}" --docker-password="${GITHUB_TOKEN}" \
            --dry-run=client -o yaml | kubectl apply -f -
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_USERNAME: ${{ github.actor }}
      - name: Install kustomize
        run: |
          curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
          sudo mv kustomize /usr/local/bin
      - name: Edit image tag with GitHub Run ID
        run: (cd kubernetes && kustomize edit set image ghcr.io/ajavageek/vcluster-pipeline=:${{github.run_id}})
      - name: Deploy Kustomized manifest to Google Cloud
        run: |
          kustomize build kubernetes > manifest.yml
          kubectl apply -f manifest.yml
      - name: Run "unit" tests
        run: ./mvnw verify
      - name: Delete the vCluster
        run: vcluster delete vcluster-pipeline-${{github.run_id}}