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cv-csi-test

Testing & Quality
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End-to-end Curvine CSI driver testing guide for Kubernetes deployment, StorageClass and MountPod setup, resilience scenarios, volume expansion, and scripted test suites. Use when validating CSI code changes, running integration tests, debugging mount failures, or verifying MountPod recovery after node or CSI restarts.

QUICK START

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cv-csi-test

This skill provides comprehensive guidance for testing Curvine CSI driver, including component deployment, test pod configuration, and complete testing workflows.

Quick Start

1. Deploy Components

Deploy in order:

kubectl apply -f curvine-csi/deploy/namespace.yaml
kubectl apply -f curvine-csi/deploy/serviceaccount.yaml
kubectl apply -f curvine-csi/deploy/clusterrole.yaml
kubectl apply -f curvine-csi/deploy/clusterrolebinding.yaml
kubectl apply -f curvine-csi/deploy/csidriver.yaml
kubectl apply -f curvine-csi/deploy/daemonset-mountpod.yaml  # MountPod mode (recommended)
kubectl apply -f curvine-csi/examples/storage-class.yaml

2. Verify Deployment

kubectl get pods -n curvine-system -l app=curvine-csi-node
kubectl get csidriver curvine
kubectl get storageclass curvine-sc

3. Run Basic Test

kubectl apply -f curvine-csi/examples/pvc-curvine.yaml
kubectl apply -f curvine-csi/examples/pod-curvine.yaml
kubectl exec curvine-test-pod -n curvine-system -- sh -c 'echo "Test" > /usr/share/nginx/html/test.txt'
kubectl exec curvine-test-pod -n curvine-system -- cat /usr/share/nginx/html/test.txt

Core Workflow

Phase 1: Build and Deploy

  1. Build CSI Binary

    cd curvine-csi
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o bin/csi .

  2. Build Docker Image

    mkdir -p /tmp/csi-build && cp bin/csi /tmp/csi-build/
cat > /tmp/csi-build/Dockerfile << 'EOF'
FROM ghcr.io/curvineio/curvine-csi:latest
COPY csi /opt/curvine/csi
RUN chmod +x /opt/curvine/csi
EOF
cd /tmp/csi-build && docker build -t curvine-csi:latest .
docker tag curvine-csi:latest 10.119.43.210:5000/curvine-csi:latest
docker push 10.119.43.210:5000/curvine-csi:latest

  3. Deploy Components (see Quick Start)

Phase 2: Basic Functionality Tests

Test 1: Create PVC and Pod

kubectl apply -f curvine-csi/examples/pvc-curvine.yaml
kubectl wait --for=condition=Bound pvc/curvine-pvc -n curvine-system --timeout=60s
kubectl apply -f curvine-csi/examples/pod-curvine.yaml
kubectl wait --for=condition=Ready pod/curvine-test-pod -n curvine-system --timeout=60s

Test 2: Write and Read Data

kubectl exec curvine-test-pod -n curvine-system -- \
  sh -c 'echo "Hello Curvine CSI" > /usr/share/nginx/html/test.txt'
kubectl exec curvine-test-pod -n curvine-system -- \
  cat /usr/share/nginx/html/test.txt

Test 3: Multi-Pod Shared Access

kubectl apply -f curvine-csi/examples/deployment-curvine.yaml
kubectl wait --for=condition=Ready pod -l app=curvine-test -n curvine-system --timeout=60s
# Write from pod 1, read from pod 2

Phase 3: Resilience Tests

Test 4: CSI Node Pod Restart (MountPod Mode)

# Write data before restart
kubectl exec curvine-test-pod -n curvine-system -- \
  sh -c 'echo "Before restart: $(date)" > /usr/share/nginx/html/restart-test.txt'

# Restart CSI Node Pod
kubectl delete pod -l app=curvine-csi-node -n curvine-system
kubectl wait --for=condition=Ready pod -l app=curvine-csi-node -n curvine-system --timeout=60s

# Verify MountPod still exists
kubectl get pods -n curvine-system | grep curvine-mountpod

# Read data after restart (should still be accessible)
kubectl exec curvine-test-pod -n curvine-system -- \
  cat /usr/share/nginx/html/restart-test.txt

Test 5: MountPod Recovery

kubectl get pods -n curvine-system | grep curvine-mountpod
kubectl logs -n curvine-system -l app=curvine-mountpod --tail=50

Test 6: Pod Deletion and Cleanup

kubectl delete pod curvine-test-pod -n curvine-system
kubectl wait --for=delete pod/curvine-test-pod -n curvine-system --timeout=30s
kubectl delete pvc curvine-pvc -n curvine-system

Test Pods

Simple Test Pod

  • File: curvine-csi/examples/pod-curvine.yaml
  • Single pod with nginx, mounts PVC

Multi-Pod Deployment

  • File: curvine-csi/examples/deployment-curvine.yaml
  • 3 replicas sharing same PVC

StatefulSet

  • File: curvine-csi/examples/statefulset-curvine.yaml
  • For stateful workloads

Components Reference

See references/components.md for detailed component descriptions:

  • Namespace, ServiceAccounts, RBAC
  • CSIDriver, Controller, Node Plugin
  • StorageClass configuration

Troubleshooting

Common Issues

PVC Stuck in Pending

kubectl describe pvc curvine-pvc -n curvine-system
kubectl logs -n curvine-system -l app=curvine-csi-controller --tail=100

Pod Cannot Mount Volume

kubectl logs -n curvine-system -l app=curvine-csi-node --tail=100
kubectl get pods -n curvine-system | grep curvine-mountpod
kubectl logs -n curvine-system -l app=curvine-mountpod --tail=100

MountPod Not Created

kubectl logs -n curvine-system -l app=curvine-csi-node --tail=100 | grep -i mountpod
kubectl auth can-i create pods --as=system:serviceaccount:curvine-system:curvine-csi-node-sa
kubectl get configmap -n curvine-system | grep curvine-mountpod

Pod Deletion Hangs

kubectl get pv -o json | jq '.items[] | select(.spec.csi.driver=="curvine") | {name: .metadata.name, finalizers: .metadata.finalizers}'
# Manual cleanup if needed:
kubectl patch pv <pv-name> -p '{"metadata":{"finalizers":[]}}' --type=merge

Test Scripts

See scripts/test-suite.sh for automated test script template.

Verification Checklist

  • CSI Node Pods running on all nodes
  • MountPods created for each Curvine cluster
  • CSIDriver registered
  • StorageClass available
  • PVC creation succeeds
  • Pod can mount volume
  • Data write/read works
  • Multiple pods can share same volume
  • CSI restart doesn't affect mounted volumes (MountPod mode)

注意事项

如果遇到Pod Terminating，最多等待2min，就要停止等待，并仔细检查pod删除卡主的原因，如果无法修复，可以采用--force的方式确保安全删除。

  • 测试集群的master addr为10.119.43.210:8995, 且只有一个。
  • 测试之前需要将gchr镜像替换为10.119.43.210:5000/curvine-csi, 测试完成后总是要恢复为原始镜像。