docs: Add autoscale recommendations docs #7617
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Signed-off-by: Spike Curtis <spike@coder.com>
johnstcn
approved these changes
May 22, 2023
docs/admin/scale.md
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| We recommend you plan to run enough coderd replicas to comfortably meet your weekly high-water-mark load, and monitor | ||
| coderd peak CPU & memory utilization over the long term, reevaluating periodically. When scaling down (or performing | ||
| upgrades), schedule these on off hours to minimize user interruptions. |
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nit: "on off hours" reads funny, suggest
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| upgrades), schedule these on off hours to minimize user interruptions. | |
| upgrades), schedule these outside normal working hours to minimize user interruptions. |
docs/admin/scale.md
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| When running on Kubernetes on cloud infrastructure (i.e. not bare metal), many operators choose to employ a _cluster_ | ||
| autoscaler that adds and removes Kubernetes _nodes_ according to load. Coder can coexist with such cluster autoscalers, | ||
| but we recommend you take steps to prevent the autoscaler from evicting coderd pods, as an eviction will cause the same | ||
| interruptions as described above. |
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Might be no harm to add an example:
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| interruptions as described above. | |
| interruptions as described above. For example, if you are using the [Kubernetes cluster | |
| autoscaler](https://kubernetes.io/docs/reference/labels-annotations-taints/#cluster-autoscaler-kubernetes-io-safe-to-evict), you may wish to set | |
| `cluster-autoscaler.kubernetes.io/safe-to-evict: "false"` as an annotation | |
| on the coderd deployment. |
bpmct
approved these changes
May 22, 2023
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This is really helpful, thanks for doing this! |
Signed-off-by: Spike Curtis <spike@coder.com>
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We get asked about this enough, e.g. https://github.com/coder/v2-customers/issues/173 that we should have a place in the docs we can just point people to.