journalctl -xeu kubelet 执行后的日志如下：

--

-- The process' exit code is 'exited' and its exit status is 1.

Jan 02 14:20:06 iv-ydipyqxfr4wuxjsij0bd systemd[1]: kubelet.service: Failed with result 'exit-code'.

-- Subject: Unit failed

-- Defined-By: systemd

-- Support: http://www.ubuntu.com/support

--

-- The unit kubelet.service has entered the 'failed' state with result 'exit-code'.

Jan 02 14:20:16 iv-ydipyqxfr4wuxjsij0bd systemd[1]: kubelet.service: Scheduled restart job, restart counter is at 952.

-- Subject: Automatic restarting of a unit has been scheduled

-- Defined-By: systemd

-- Support: http://www.ubuntu.com/support

--

-- Automatic re