1、解析不到对应的主机
[WARNING Hostname]: hostname "k8s-master-01" could not be reached [WARNING Hostname]: hostname "k8s-master-01": lookup k8s-master-01 on 192.168.222.2:53: no such host
解决方式:
hostnamectl set-hostname k8s-master-01 [root@k8s-master-01 ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 k8s-master-01 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 k8s-master-01 192.168.222.153 k8s-master-01
2、docker的cgroup driver和kubelet的cgroup driver不一致
[WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/
解决方式:将docker和kubelet的cgroup driver都改成systemd
docker: [root@k8s-m-01 ~]# cat /etc/docker/daemon.json { "exec-opts": ["native.cgroupdriver=systemd"] } kubelet: [root@k8s-m-01 ~]# cat /etc/sysconfig/kubelet KUBELET_EXTRA_ARGS="--cgroup-driver=systemd" systemctl daemon-reload systemctl restart docker systemctl restart kubelet