Support the Kubernetes Metrics Server #319
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@abcdabcd987 thank you for sending this PR! Following the merge of #320, it now has conflicts which must be resolved. Could you please resolve them? |
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resolved. |
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Thanks a lot for your kind words and contributions, @abcdabcd987. The commit log shows that there is a merge commit. Can you rebase instead, so it's just one clean commit? |
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rebased. |
| @@ -146,6 +146,10 @@ Most aspects of your cluster setup can be customized with environment variables. | |||
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| Defaults to `false`. | |||
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| - **USE_METRICS_SERVER** defines whether to deploy or not the [Kubernetes Metrics Server](https://github.com/kubernetes-incubator/metrics-server) | |||
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| Defaults to `false`. | |||
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| Defaults to `false`. | |
| Defaults to `true`. |
This is required for the Horizontal Pod Autoscaler to work.
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I would say agree because HPA is my motivation for adding this feature. The reason why I put it to false by default is that I haven't tested it in Windows nor RBAC (and I probably won't because I don't have this kind of setup).
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I'm sure @bmcstdio can help here, right Bruno?
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Definitely. However, it seems to me that this PR needs some love. I checked out this branch and ran the following command:
$ NODES=1 USE_METRICS_SERVER=true vagrant up
Turns out the Kubernetes API can never be reachable:
$ kubectl get node
Unable to connect to the server: net/http: TLS handshake timeout
This does not happen in USE_METRICS_SERVER is set to false.
I also noticed high load on the system - far higher than usual. While I am not sure, part of what the root cause for this may be the fact that the following flag is not being defined:
--enable-aggregator-routing=true
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Yeah, definitely need more tests. I only tested it on macOS. Also, good catch on --enable-aggregator-routing=true.
First of all, thank you Mr. Pires, for this very handy Vagrant project.
I added the support of the Kubernetes Metrics Server.
plugins/metrics-server/is frommetrics-server/deploy/1.8+/. And I have to make some changes to themanifests/master-apiserver.yamlaccording to this comment.I've tested it on Mac. But I'm not sure if it works on Windows. And also not sure about RBAC.