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hjacobs / kube-ops-view

Kubernetes Operational View - read-only system dashboard for multiple K8s clusters
https://kubernetes-operational-view.readthedocs.io/
GNU General Public License v3.0
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Separate nodes by availability zone #167

Open puco opened 6 years ago

puco commented 6 years ago

It would be nice to have nodes separated into failure zones so I can clearly see where each nodes/pods live

hjacobs commented 6 years ago

Sounds good, ideas and contributions (PR) are welcome!

morsik commented 6 years ago

AZ-s are nice, but easier would be split that per regions.

OpenShift doesn't use master=true label (I've added it manually right now to test isMaster that actually works). OpenShift uses region label. Maybe the best idea is to make it configurable by which label it should group that?

There are also regions in pure Kube: failure-domain.beta.kubernetes.io/region

hjacobs commented 6 years ago

@morsik honestly "region" does not sound so useful as multi-region clusters should be the exception and not the default (because of latencies). I don't know many people running multi-region Kubernetes (and the cloud providers also don't have this as a managed service AFAIK).

morsik commented 6 years ago

@hjacobs: I don't know about basic Kube, but region in OpenShift doesn't necessary means long distance. In OO, there is region=infra for infrastructure nodes, and region=default for default nodes. This is very useful to group by in Ops View GUI.

hjacobs commented 6 years ago

@morsik ok, this was a misunderstanding. You mentioned failure-domain.beta.kubernetes.io/region which is the AWS region when running on AWS, so I assumed it's similar for OpenShift.

morsik commented 6 years ago

@hjacobs: oh right. This is my bad with example.

failure-domain.beta.kubernetes.io/region is indeed used by Cloud Providers in Kubernetes. I forgot about it - you're right.

But making it fully configurable ("By which label GUI should group nodes?") would be useful and address all of those problems. For me grouping by region is ok, for @puco (requestor) something about availability zone is ok - so user can choose.