milvus/.github/workflows/pod-failure-chaos-test.yaml

name: Pod Failure Chaos Test

on:
  workflow_dispatch:
  schedule:
    - cron: "30 19 * * *"
jobs:
  
  test-pod-failure-chaos:
   
    runs-on: ubuntu-latest
    timeout-minutes: 40
    strategy:
      fail-fast: false
      matrix:
        pod: [querynode, datanode, indexnode, proxy]
    
    steps:
      - name: Set env param
        run: |
          echo "RELEASE=test-${{ matrix.pod }}-pod-failure" >> $GITHUB_ENV          

      - name: Creating kind cluster
        uses: helm/kind-action@v1.2.0
      
      - name: Print cluster information
        run: |
          kubectl config view
          kubectl cluster-info
          kubectl get nodes
          kubectl get pods -n kube-system
          helm version
          kubectl version          
      
      - uses: actions/checkout@v2

      - name: Set up Python
        uses: actions/setup-python@v2
        with:
          python-version: 3.8

      - name: Install dependency
        uses: nick-invision/retry@v2
        with:
          timeout_minutes: 5
          max_attempts: 3
          retry_on: error
          shell: bash
          command: |
            pip install -r tests/python_client/requirements.txt
            pip install --upgrade protobuf            
      
      - name: Deploy Chaos Mesh
        shell: bash
        run: |
          helm repo add chaos-mesh https://charts.chaos-mesh.org
          helm search repo chaos-mesh
          kubectl create ns chaos-testing
          helm install chaos-mesh chaos-mesh/chaos-mesh --namespace=chaos-testing --version v2.0.2 --set chaosDaemon.runtime=containerd --set chaosDaemon.socketPath=/run/containerd/containerd.sock
          sleep 60s
          kubectl get po -n chaos-testing          
      
      - name: Deploy Milvus
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          declare -A pod_map=( ["querynode"]="queryNode" ["indexnode"]="indexNode" ["datanode"]="dataNode" ["proxy"]="proxy")
          helm repo add milvus https://milvus-io.github.io/milvus-helm
          helm repo update
          helm install --wait --timeout 720s ${{ env.RELEASE }} milvus/milvus --set ${pod_map[${{ matrix.pod }}]}.replicas=2 -f cluster-values.yaml  -n=chaos-testing
          kubectl get pods -n chaos-testing
          sleep 20s
          kubectl get pods -n chaos-testing
          kubectl port-forward service/${{ env.RELEASE }}-milvus 19530 -n chaos-testing >/dev/null 2>&1 &
          sleep 20s
          # check whether port-forward success
          nc -vz 127.0.0.1 19530
          # check whether milvus server is healthy
          python scripts/hello_milvus.py          

      
      - name: Chaos Test
        timeout-minutes: 15
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          # replace chaos object
          sed -i "s/TESTS_CONFIG_LOCATION =.*/TESTS_CONFIG_LOCATION = \'chaos_objects\/pod_failure\/'/g" constants.py
          sed -i "s/ALL_CHAOS_YAMLS =.*/ALL_CHAOS_YAMLS = \'chaos_${{ matrix.pod }}_pod_failure.yaml\'/g" constants.py
          sed -i "s/CHAOS_DURATION =.*/CHAOS_DURATION = 80/g" constants.py
          cat constants.py
          pytest -s -v test_chaos.py --host 127.0.0.1 --log-cli-level=INFO          

      - name: Milvus E2E Test
        timeout-minutes: 5
        if: ${{ always() }}
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          kubectl get pod -n chaos-testing
          kubectl wait --for=condition=Ready pod -l app.kubernetes.io/instance=${{ env.RELEASE }} -n chaos-testing --timeout=360s
          kubectl wait --for=condition=Ready pod -l release=${{ env.RELEASE }} -n chaos-testing --timeout=360s
          python scripts/hello_milvus.py          

      - name: Data Consist Test
        timeout-minutes: 5
        if: ${{ always() }}
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          pytest -s -v test_chaos_data_consist.py --host 127.0.0.1 --log-cli-level=INFO || echo "data consist chaos test failed"          

      - name: Milvus E2E Test
        timeout-minutes: 5
        if: ${{ always() }}
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          kubectl get pod -n chaos-testing
          kubectl wait --for=condition=Ready pod -l app.kubernetes.io/instance=${{ env.RELEASE }} -n chaos-testing --timeout=360s
          kubectl wait --for=condition=Ready pod -l release=${{ env.RELEASE }} -n chaos-testing --timeout=360s
          python scripts/hello_milvus.py          

      - name: Export logs
        if: ${{ always() }}
        shell: bash
        working-directory: tests/python_client/chaos
        run: |
          #in this step, verify whether pod has been killed by pod's age
          kubectl get po -n chaos-testing
          # export k8s log for chaos mesh and milvus
          bash ../../scripts/export_log_k8s.sh chaos-testing ${{ env.RELEASE }}
          bash ../../scripts/export_log_k8s.sh chaos-testing chaos-daemon          
      
      - name: Upload logs
        if: ${{ always() }}
        uses: actions/upload-artifact@v2
        with:
          name: logs-${{ matrix.pod }}
          path: tests/python_client/chaos/k8s_logs