试验环境为 ubuntu 20.04

一、nfs 部署安装

• 安装 nfs

apt-get install nfs-kernel-server

• 创建共享目录

mkdir nfs_data

• 修改共享配置

root@master:~# vim /etc/exports

/root/nfs_data *(rw,no_root_squash)

• 重启 nfs

/etc/init.d/nfs-kernel-server restart

• 查看共享目录

showmount -e

二、安装 nfs provisioner

官方文档

• 创建 server account 用户

service_account.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: nfs-provisioner

• 启动 service account 并查看

kubectl apply -f service_account.yaml

kubectl get sa

• 创建 ServiceAccount

授权给 nfs 可以访问 k8s 内部一些功能

kubectl create clusterrolebinding nfs-provisioner-clusterrolebinding --clusterrole=cluster-admin --serviceaccount=default:nfs-provisioner

• 创建 nfs deployment

k8s.gcr.io/sig-storage/nfs-subdir-external-provisioner:v4.0.0 下载不下来可以考虑其他办法下载完成后传到节点上。使用 ctr -n=k8s.io images import nfs-subdir-external-provisioner.tar.gz

nfs-deployment.yaml

kind: Deployment
apiVersion: apps/v1
metadata:
  name: nfs-provisioner
spec:
  replicas: 1
  selector:
    matchLabels:
       app: nfs-provisioner
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: nfs-provisioner
    spec:
      serviceAccountName: nfs-provisioner  # ServiceAccount 的 name
      containers:
        - name: nfs-provisioner
          image: k8s.gcr.io/sig-storage/nfs-subdir-external-provisioner:v4.0.0
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - name: nfs-client-root
              mountPath: /persistentvolumes
          env:
            - name: PROVISIONER_NAME
              value: example.com/nfs
            - name: NFS_SERVER
              value: 192.168.17.130 # nfs 服务 ip
            - name: NFS_PATH
              value: /root/nfs_data/nfs_pro # nfs 共享的目录地址
      volumes:
        - name: nfs-client-root
          nfs:
            server: 192.168.17.130 # nfs 服务 ip
            path: /root/nfs_data/nfs_pro # nfs 共享的目录地址

• 启动 deployment 并查看

kubectl apply -f nfs-deployment.yaml

kubectl get pods