test-e2e.yml

name: E2E Tests

on:
  push:
    branches:
      - 'release-*' # for main branch we have the merge queue
  pull_request:
  merge_group:

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test-e2e:
    name: E2E Tests (${{ matrix.builder }}/${{ matrix.deployer }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        builder: [pack, s2i]
        deployer: [knative, raw, keda]
    steps:
      - name: Free up disk space
        run: |
          # Remove large pre-installed toolchains not needed for K8s operator testing
          sudo rm -rf \
            /usr/share/dotnet \
            /usr/local/lib/android \
            /opt/ghc \
            /opt/hostedtoolcache \
            /usr/local/share/powershell \
            /usr/share/swift \
            /usr/local/.ghcup \
            /usr/local/share/chromium \
            /usr/local/lib/heroku
          # Clean up Docker to start fresh
          docker system prune -af --volumes
          df -h

      - name: Clone the code
        uses: actions/checkout@v7

      - name: Setup Go
        uses: actions/setup-go@v7
        with:
          go-version-file: go.mod

      - name: Install the latest version of kind
        run: |
          curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
          chmod +x ./kind
          sudo mv ./kind /usr/local/bin/kind

      - name: Verify kind installation
        run: kind version

      - name: Install helm
        uses: azure/setup-helm@v5.0.1

        # func CLI is needed in some e2e tests ATM
      - name: Install func cli
        uses: functions-dev/action@main
        with:
          version: nightly # use nightly as long as we use the latest in the operator too

      - name: Setup KinD cluster
        run: make create-kind-cluster

      - name: Install func-operator
        run: make docker-build docker-push deploy

      - name: Pre-pull builder images to avoid parallel pull contention
        run: |
          # Pre-pull builder images before tests run in parallel to avoid:
          # - Network bandwidth saturation (multiple 1-3GB pulls)
          # - Disk I/O contention
          # - Container runtime lock contention

          if [ "${{ matrix.builder }}" = "s2i" ]; then
            echo "Pre-pulling S2I builder images..."
            docker pull registry.access.redhat.com/ubi8/go-toolset:latest || true
            # for now we only download the go image, as we only use this in the e2e tests

            kind load docker-image registry.access.redhat.com/ubi8/go-toolset:latest || true
          elif [ "${{ matrix.builder }}" = "pack" ]; then
            echo "Pre-pulling pack builder images..."
            docker pull ghcr.io/knative/builder-jammy-base:v2 || true
            docker pull ghcr.io/knative/builder-jammy-tiny:v2 || true

            kind load docker-image ghcr.io/knative/builder-jammy-base:v2 || true
            kind load docker-image ghcr.io/knative/builder-jammy-tiny:v2 || true
          fi

          echo "Builder images cached in KinD cluster"

      - name: Running e2e Tests
        env:
          REGISTRY_INSECURE: true
          REGISTRY: kind-registry:5000
          DEFAULT_BUILDER: ${{ matrix.builder }}
          DEFAULT_DEPLOYER: ${{ matrix.deployer }}
        run: make test-e2e

      - name: Collect Kubernetes artifacts
        if: failure()
        run: |
          mkdir -p /tmp/k8s-artifacts
          kubectl logs -n func-operator-system -l control-plane=controller-manager --tail=-1 --all-containers --prefix --timestamps > /tmp/k8s-artifacts/func-operator.log || true
          for resource in functions deployments configmaps pipelineruns roles rolebindings; do
            kubectl get ${resource} -A -o yaml > /tmp/k8s-artifacts/${resource}.yaml || true
          done

          # Install Tekton CLI for better PipelineRun log collection
          curl -LO https://github.com/tektoncd/cli/releases/download/v0.44.1/tkn_0.44.1_Linux_x86_64.tar.gz
          tar xvzf tkn_0.44.1_Linux_x86_64.tar.gz -C /tmp
          chmod +x /tmp/tkn

          # Collect logs from all pipelineruns using Tekton CLI
          /tmp/tkn pipelinerun list -A > /tmp/k8s-artifacts/pipelinerun-list.txt 2>&1 || true
          kubectl get pipelineruns -A -o json | jq -r '.items[] | "\(.metadata.namespace) \(.metadata.name)"' | while read ns name; do
            /tmp/tkn pipelinerun logs $name -n $ns > /tmp/k8s-artifacts/pipelinerun-logs-${ns}-${name}.log 2>&1 || true
          done

      - name: Upload Kubernetes artifacts
        if: failure()
        uses: actions/upload-artifact@v7
        with:
          name: func-operator-logs-${{ matrix.builder }}-${{ matrix.deployer }}
          path: /tmp/k8s-artifacts/
          retention-days: 7