查看状态
sudo systemctl status kubelet
sudo systemctl status kubelet
sudo systemctl status kubelet
会发现是exit 异常退出，查看日志
journalctl -u kubelet
journalctl -u kubelet
journalctl -u kubelet
发现如下报错
Failed to run kubelet" err="failed to run Kubelet: misconfiguration: kubelet cgroup driver: \"systemd\" is different from docker
cgroup driver: \"cgroupfs\"
Failed to run kubelet" err="failed to run Kubelet: misconfiguration: kubelet cgroup driver: \"systemd\" is different from docker
cgroup driver: \"cgroupfs\"
Failed to run kubelet" err="failed to run Kubelet: misconfiguration: kubelet cgroup driver: \"systemd\" is different from docker cgroup driver: \"cgroupfs\"
这是cgroup的驱动不必配导致的，本地docker使用的是cgroupfs，然而kubelet使用的是systemd
确认当前使用的驱动版本：
docker info |grep -i cgroup
WARNING: No swap limit support
Cgroup Driver: cgroupfs
Cgroup Version: 1
docker info |grep -i cgroup
WARNING: No swap limit support
Cgroup Driver: cgroupfs
Cgroup Version: 1
docker info |grep -i cgroup WARNING: No swap limit support Cgroup Driver: cgroupfs Cgroup Version: 1
修改：
sudo vim /etc/docker/daemon.json
sudo vim /etc/docker/daemon.json
sudo vim /etc/docker/daemon.json
添加
{"exec-opts": ["native.cgroupdriver=systemd"]}
{"exec-opts": ["native.cgroupdriver=systemd"]}
{"exec-opts": ["native.cgroupdriver=systemd"]}
重启，搞定
sudo systemctl restart docker
sudo systemctl restart docker
sudo systemctl restart docker