我在 Centos 7 机器上设置 kubernetes 集群,kubeadm init
命令给了我以下警告消息。
[init] Using Kubernetes version: v1.9.0
[init] Using Authorization modes: [Node RBAC]
[preflight] Running pre-flight checks.
[WARNING SystemVerification]: docker version is greater than the most recently validated version. Docker version: 17.09.1-ce. Max validated version: 17.03
[WARNING FileExisting-crictl]: crictl not found in system path
我该如何解决这个crictl not found in system path
警告?我需要安装任何其他软件吗?