put external ip and to api server certSANs

[huxiaoliang]

[huxiaoliang]

workaround is : kubernetes/kubeadm#1447 (comment)

[huxiaoliang]

@TomatoAres， please take a look this.

[TomatoAres]

We need to know VM's external IP, but tke can not get this IP.

Some public cloud scenarios are not appropriate，such as:

1. VM without external IP
2. VM with a elastic external IP

@huxiaoliang

[TomatoAres]

Close this issue.@huxiaoliang

[huxiaoliang]

just handle the global cluster console external ip and domain is ok for me

[TomatoAres]

I got it