kubeadm

What would you like to be documented:

Fix wait for ingress script in https://kind.sigs.k8s.io/docs/user/ingress/#ingress-nginx

Why is this needed:

This is needed because with a slow internet connection and a slow computer
ingress-nginx-admission-create and ingress-nginx-admission-patch jobs take some time to complete.

While they are not completed the wait command provid

sealos init 安装多节点集群，三个master节点(ubtk8s0, ubtk8s1, ubtk8s2)和4个node节点(ubtk8s3, ubtk8s4, ubtk8s5, ubtk8s6)，确认一切ok后，将ubtk8s2和ubtk8s4关机，1分钟左右kubectl get nodes 则会得到这两个节点处于 NotReady 状态。

然而等待数小时后，仍然为NotReady状态而不是Unknow。这个NotReady状态不驱逐pod，所以 kubectl get pods -A -o wide | grep 'ubtk8s2|ubtk8s4' 仍然显示之前的pod在这两个节点处于running状态。

![image](https://user-images.githubusercontent.com/3319979/106545970-564d7e00-6

https://medium.com/free-code-camp/how-to-set-up-a-serious-kubernetes-terminal-dd07cab51cd4

When I finished the cluster creating task via kk create cluster --with-kubesphere --with-kubernetes v1.17.9

I try to execute a simple command which is kubectl get ns. But errors happend. You can see the output below:

Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate au

OS running on Ansible host:

NA

Ansible Version (ansible --version):

NA

Uploaded logs showing errors(`rak8s/.log/ansi