16.NFS

1.创建nfs的pod

cat > nfs-server-pod.yaml <<"EOF"
apiVersion: v1
kind: Pod
metadata:
  name: nfs-server
  labels:
    role: nfs-server
spec:
  containers:
    - name: nfs-server
      image: jsafrane/nfs-data:latest
      ports:
        - name: nfs
          containerPort: 2049
      securityContext:
        privileged: true
EOF

2.创建nfs的service

cat > nfs-service.yaml <<"EOF"
kind: Service
apiVersion: v1
metadata:
  name: nfs-server
spec:
  clusterIP: 10.254.234.223
  ports:
    - port: 2049
  selector:
    role: nfs-server
EOF

3.使用

apiVersion: v1
kind: Pod
metadata:
  name: nfs-web
spec:
  containers:
    - name: my-nginx
        image: nginx:1.7.9
      ports:
        - name: nfs
          containerPort: 80
      volumeMounts:
          # name must match the volume name below
          - name: nfs
            mountPath: "/usr/share/nginx/html"
  volumes:
    - name: nfs
      nfs:
        # FIXME: use the right hostname
        server: 10.254.234.223
        path: "/"

4.配置nfs
a.安装
#在k8s的master安装

yum install -y nfs-utils rpcbind

#在每个node安装

yum install -y nfs-utils 

b.启动及查看状态

systemctl start rpcbind
systemctl status rpcbind
systemctl start nfs
systemctl status nfs

c.配置文件
#NFS服务的配置文件 /etc/exports
vim /etc/exports加入以下配置 ip段根据kubectl get svc查询nfs-server的ip决定10.254.234.223

/nfs/prometheus/data/ 10.254.234.0/24(rw,no_root_squash,no_all_squash,sync)

d.创建文件并授权
#exports中的配置的内容，需要创建下/nfs/prometheus/data/

mkdir -p  /nfs/prometheus/data/

#修改权限

chmod -R 777 /nfs/prometheus/data/

e.验证
#验证配置的/nfs/prometheus/data/是否正确

exportfs -r

查看

showmount -e 10.254.234.223

输出

Export list for 10.254.234.223:
/nfs/prometheus/data 10.254.234.0/24

https://blog.youkuaiyun.com/shenhonglei1234/article/details/80827570
https://www.cnblogs.com/zihanxing/articles/6004202.html
https://www.cnblogs.com/liuyansheng/p/6108952.html