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Merge pull request #176 from justinsb/docs_7 

Add docs for master resize
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Justin Santa Barbara 2016-07-21 09:31:04 -04:00 committed by GitHub
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@ -130,6 +130,32 @@ So the procedure is:
* Rolling-update, only if you want to apply changes immediately: `kops rolling-update cluster`
## Resizing the master
(This procedure should be pretty familiar by now!)
Your master instance group will probably be called `master-us-west-1c` or something similar.
`kops edit ig master-us-west-1c`
Add or set the machineType:
```
spec:
machineType: m3.large
```
* Preview changes: `kops create cluster --name <clustername> --dryrun`
* Apply changes: `kops create cluster --name <clustername>`
* Rolling-update, only if you want to apply changes immediately: `kops rolling-update cluster`
If you want to minimize downtime, scale the master ASG up to size 2, then wait for that new master to
be Ready in `kubectl get nodes`, then delete the old master instance, and scale the ASG back down to size 1. (A
future of rolling-update will probably do this automatically)
## Deleting an instance group
If you decide you don't need an InstanceGroup any more, you delete it using: `kops delete ig <name>`