ci-e2e-test.yaml

name: E2E Workflow
on:
  workflow_dispatch:
  pull_request:
    paths:
      - 'pkg/**'
      - 'e2e/**'
      - 'cmd/**'
      - 'Dockerfile*'
      - 'go.mod'
      - 'go.sum'

jobs:
  init:
    outputs:
      tests: ${{ steps.e2es.outputs.result }}
    runs-on: [ default ]
    name: "Prepare E2E Scenarios"
    steps:
      - name: "Checkout"
        uses: actions/checkout@v4

      # find all e2e scenarios in the e2e directory and generate an array of scenario names
      - name: "E2E Detection"
        id: e2es
        run: |
          scenarios=$(find ${GITHUB_WORKSPACE}/e2e -type f -name 'e2e_test.go' -exec dirname {} \; | xargs -n 1 basename | jq -R -s -c 'split("\n")[:-1]')
          echo $scenarios
          echo "result=$scenarios" >> $GITHUB_OUTPUT

  e2e:
    name: "Run ${{ matrix.e2es }}(${{ matrix.k8s-version}}) E2E"
    if: needs.init.outputs.tests != '[]'
    needs: [ init ]
    runs-on: [ default ]
    env:
      ADMIN_CLUSTER: greenhouse-admin
      REMOTE_CLUSTER: greenhouse-remote

    strategy:
      fail-fast: false
      matrix:
        k8s-version: [ "v1.29.8", "v1.30.4", "v1.31.0" ]
        e2es: ${{fromJson(needs.init.outputs.tests)}}
    steps:
      - name: "Checkout"
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: 'go.mod'
          token: ${{ secrets.GITHUB_TOKEN }}

      # Create the admin cluster with latest kubernetes version
      - name: Create Admin Cluster
        uses: helm/kind-action@v1.12.0
        with:
          cluster_name: ${{ env.ADMIN_CLUSTER }}
          node_image: 'kindest/node:v1.31.0'

      # Create the remote cluster with kubernetes version from the matrix
      - name: Create Remote Cluster
        uses: helm/kind-action@v1.12.0
        with:
          node_image: 'kindest/node:${{ matrix.k8s-version }}'
          cluster_name: ${{ env.REMOTE_CLUSTER }}
          config: ${{ github.workspace }}/e2e/kind-config.yaml

      # build CLI, setup e2e environment and prepare kubeconfigs
      - name: "Prepare E2E Config"
        id: config
        run: |
          make setup-e2e
          echo "admin_config=$GITHUB_WORKSPACE/bin/${{env.ADMIN_CLUSTER}}.kubeconfig" >> $GITHUB_OUTPUT
          echo "remote_config=$GITHUB_WORKSPACE/bin/${{env.REMOTE_CLUSTER}}.kubeconfig" >> $GITHUB_OUTPUT
          echo "remote_int_config=$GITHUB_WORKSPACE/bin/${{env.REMOTE_CLUSTER}}-int.kubeconfig" >> $GITHUB_OUTPUT

      # run the e2e tests with the scenario from the matrix
      - name: "E2E Run"
        id: e2e
        continue-on-error: true
        env:
          SCENARIO: ${{ matrix.e2es }}
          EXECUTION_ENV: gh-actions
          GREENHOUSE_ADMIN_KUBECONFIG: ${{ steps.config.outputs.admin_config }}
          GREENHOUSE_REMOTE_KUBECONFIG: ${{ steps.config.outputs.remote_config }}
          GREENHOUSE_REMOTE_INT_KUBECONFIG: ${{ steps.config.outputs.remote_int_config }}
          CONTROLLER_LOGS_PATH: ${{github.workspace}}/bin/${{matrix.e2es}}-${{matrix.k8s-version}}.txt
          E2E_REPORT_PATH: ${{github.workspace}}/bin/${{matrix.e2es}}-${{matrix.k8s-version}}.json
        run: |
          echo "result=$CONTROLLER_LOGS_PATH" >> $GITHUB_OUTPUT
          make e2e

      # v4 upload-artifact needs unique names for each artifact (see https://github.com/actions/upload-artifact/tree/main?tab=readme-ov-file#not-uploading-to-the-same-artifact)
      - name: "Upload E2E Logs"
        uses: actions/upload-artifact@v4
        if: ${{ steps.e2e.outputs.result != '' }} # skip if nothing needs to be uploaded
        with:
          name: e2e-logs-${{ matrix.e2es }}-${{ matrix.k8s-version }}
          path: ${{steps.e2e.outputs.result}}
          retention-days: 7
          if-no-files-found: ignore

  artifacts:
    name: "Merge Artifacts"
    runs-on: [ default ]
    needs: [ e2e ]
    steps:
      - name: "Merge Uploads"
        continue-on-error: true # If there are no artifacts available, the merge step will fail so we need to continue on error
        uses: actions/upload-artifact/merge@v4
        with:
          name: e2e-logs
          pattern: e2e-logs-*
          retention-days: 7
          delete-merged: true

  # check if the e2e tests passed for all scenarios
  checksOK:
    name: "E2E Check"
    needs: [ artifacts, e2e ]
    runs-on: [ default ]
    if: always()
    steps:
      - name: "Check if e2e passed"
        run: |
          if [ "${{ needs.e2e.result }}" == "success" ]; then
            echo "✅ E2E passed 🎉"
          else
            echo "❌ E2E failed 😭"
            exit 1
          fi