k8s 安装启动不了kubelet

错误信息
“Failed to run kubelet” err=“failed to run Kubelet: misconfiguration: kubelet cgroup driver: “systemd” is different from dock…er: “cgroupfs””

docker和kubernetes所使用的cgroup不一致导致   （因为提前安装了docker）

修改docker配置文件
cat > /etc/docker/daemon.json <<EOF
{"exec-opts": ["native.cgroupdriver=systemd"]}
EOF

重启docker
systemctl restart docker