[k8s]detected "cgroupfs" as the Docker cgroup driver.

1. 查看当前Cgroup状态

[root@master1 cluster]# docker info | grep Cgrou
 Cgroup Driver: cgroupfs
 Cgroup Version: 1

2. 修改Cgroup状态

vi /etc/docker/daemon.json 
{
 "exec-opts":["native.cgroupdriver=systemd"]
}

3. 重启Docker服务

systemctl restart docker

4. 修改Cgroup状态

[root@master1 cluster]# docker info | grep Cgrou
 Cgroup Driver: systemd
 Cgroup Version: 1

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