Feature Request: 'kubeadm leave'

[mikedanese]

From @tonyclam on November 1, 2016 23:56

Is this a request for help? (If yes, you should use our troubleshooting guide and community support channels, see http://kubernetes.io/docs/troubleshooting/.):

No
What keywords did you search in Kubernetes issues before filing this one? (If you have found any duplicates, you should instead reply there.):

---

Is this a BUG REPORT or FEATURE REQUEST? (choose one):
Features Request

Kubernetes version (use kubectl version):
[root@localhost ~]# kubectl version
Client Version: version.Info{Major:"1", Minor:"4", GitVersion:"v1.4.0", GitCommit:"a16c0a7f71a6f93c7e0f222d961f4675cd97a46b", GitTreeState:"clean", BuildDate:"2016-09-26T18:16:57Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"5+", GitVersion:"v1.5.0-alpha.0.1877+3f4a66f3d6892b-dirty", GitCommit:"3f4a66f3d6892b8d8831a8a60b91fd1afbefee4d", GitTreeState:"dirty", BuildDate:"2016-10-31T20:47:46Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"}

[root@localhost ~]# kubeadm version
kubeadm version: version.Info{Major:"1", Minor:"5+", GitVersion:"v1.5.0-alpha.0.1534+cf7301f16c0363-dirty", GitCommit:"cf7301f16c036363c4fdcb5d4d0c867720214598", GitTreeState:"dirty", BuildDate:"2016-09-27T18:10:39Z", GoVersion:"go1.6.3", Compiler:"gc", Platform:"linux/amd64"}

Environment:

• Cloud provider or hardware configuration:x89_64
• OS (e.g. from /etc/os-release):Ubuntu 16.04
• Kernel (e.g. uname -a): Linux kubenode01 4.4.0-38-generic kubeadm shouldn't have to run as root #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
• Install tools:kubeadm
• Others:

What happened:

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else do we need to know:

Copied from original issue: kubernetes/kubernetes#36026

[mikedanese]

This is a duplicate of #42 which has more conversation so closing this as a dup.