less than 1 minute read

之前搭建了K8s集群以及NFS,接下来介绍如何在K8s集群中使用NFS。即将NFS挂载到POD中。

参考官网对NFS的说明 以及博客

创建PV

kubectl apply -f pv-nfs.yaml

pv-nfs.yaml内容如下

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-nfs
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteMany 
  nfs:
    # NFS挂载文件路径
    path: /mnt/nfs1
    # NFS服务端地址
    server: 172.16.5.4

创建PVC

kubectl apply -f pvc-nfs.yaml

pvc-nfs.yaml内容如下

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: pvc-nfs
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi

检查PV与PVC是否绑定

执行如下两项命令,检查status状态,如果是Bound状态,可以继续往下进行

kubectl get pvc
kubectl get pv

创建一个Deployment使用PVC

apiVersion: apps/v1
kind: Deployment
metadata:
  name: busybox
  labels:
    app: busybox
spec:
  replicas: 1
  selector:
    matchLabels:
      app: busybox
  template:
    metadata:
      labels:
        app: busybox
    spec:
      containers:
      - name: busybox
        image: busybox
        command: ['sh', '-c', 'echo "Hello, Kubernetes!" && sleep 3600']
        volumeMounts:
        - name: data
          mountPath: /data
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: pvc-nfs

创建好Deployment,进入pod,/data目录内的内容是和NFS服务端同步的

如在服务端NFS路径下添加hello.txt,进入pod,ls /data能看到hello.txt