1.题目

There is a persistent volume name dev-pv in the cluster, create a persistent volume claim name dev-pvc, make sure this persistent volume claim will bound the persistent volume, and then create a pod name test-pvc that mount this pvc at path /tmp/data, use nginx image.

2.解析

本题目考测pv, pvc。

3.答案

1. 查看已存在pv dev-pv的信息

   kubectl get pv dev-pv -oyaml
   kubectl describe pv dev-pv

2. 拷贝官方文档pvc.yaml，根据已存在pv信息accessModes=ReadWriteOnce, capacity.storage=1Gi修改后创建

   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
   name: dev-pvc
   spec:
   accessModes:
    - ReadWriteOnce
   resources:
    requests:
      storage: 1Gi
   

   # 创建pvc
   kubectl apply -f pvc.yaml
   # 查看该pvc是否绑定
   kubectl get pvc
   

3. 创建pod，拷贝官方文档test-pvc.yaml，根据题意修改yaml

   apiVersion: v1
   kind: Pod
   metadata:
   name: test-pvc
   spec:
   containers:
    - name: nginx
      image: nginx
      volumeMounts:
      - mountPath: "/tmp/data"
        name: dev-pvc
   volumes:
    - name: dev-pvc
      persistentVolumeClaim:
        claimName: dev-pvc
   

   # 创建pod
   kubectl apply -f test-pvc.yaml
   

   https://kubernetes.io/zh/docs/concepts/storage/persistent-volumes/