root@mth-k8s-01:/srv/kubernetes# ls -l
total 40
-rwxrwx--- 1 root root  1179 Feb 15 12:32 ca.crt
-rwxrwx--- 1 root root  4367 Feb 15 12:32 client.crt
-rwxrwx--- 1 root root  1703 Feb 15 12:32 client.key
-rw------- 1 root root 10023 Feb 15 12:33 config
-rwxrwx--- 1 root root  4637 Mar 15 10:11 server.crt
-rwxrwx--- 1 root root  1704 Mar 15 10:11 server.key