关于解决K8S部署mysql报错chown: changing ownership of ‘/var/lib/mysql/‘: Operation not permitted的问题

1、现象

[root@master mysql]# kubectl get pods -o wide
NAME                     READY   STATUS             RESTARTS   AGE     IP            NODE    NOMINATED NODE   READINESS GATES
mysql-6c759bf84c-6jj6v   0/1     CrashLoopBackOff   6          7m18s   10.244.1.36   node1   <none>           <none>

2、日志分析

[root@master mysql]# kubectl logs -f mysql-6c759bf84c-6jj6v
[Entrypoint] MySQL Docker Image 5.7.31-1.1.17
chown: changing ownership of '/var/lib/mysql/': Operation not permitted

3、解决办法

K8S环境 NFS做持久化，在NFS做共享时，添加no_root_squash权限

[root@master mysql]# cat /etc/exports
/home/nfsdata/ *(rw,sync,no_all_squash)
[root@master mysql]# cat /etc/exports
/home/nfsdata/ *(rw,sync,no_root_squash)
[root@master mysql]# systemctl restart rpcbind
[root@master mysql]# systemctl restart nfs