Creating a multi master Kubernetes cluster on GKE

[kris...@elder.org]

Hi,

When creating a new Kubernetes cluster on GKE (with a Google hosted Kubernetes master), there is an option for selecting additional zones for nodes. However, as I understand it, this only creates _nodes_ in those zones, it doesn't create additional master instances, meaning the cluster will continue to run "as is" if the zone the master is running in has an outage, but won't be able to schedule new pods etc.

1) Is this understanding correct?
2) Is there a way of creating a multi master deployment on GKE (without having to revert to creating your own master nodes) or plans to support this?

Cheers,
Kristian

[Tim Hockin]

This is not supported yet. We're looking at how best to support this.

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[Mike Johnson]

So initially what you'd have to do is do multiple clusters and federate them to have multiple masters running (albeit for diff clusters) but GKE just added a multi-master feature to 1.8 as an Alpha feature you can request. Not sure how far out it is, I'd love to have this so I can federate less

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[Filip Grzadkowski]

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Filip

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