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Resource config now in config.kubeStateMetrics

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As requested, this updates the resource specification to live directly in config.kubeStateMetrics

It also clarifies the config variables. These names are what google uses in some of their tooling.

(And a slight tweak to the way collectors are specified)
This commit is contained in:
seph
2018-07-17 09:52:30 -04:00
parent b6e7d708c5
commit 358c8477ea
2 changed files with 21 additions and 28 deletions
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15
README.md
View File

@@ -369,24 +369,23 @@ The Prometheus `/targets` page will show the kubelet job with the error `403 Una
#### Authorization problem
The Prometheus `/targets` page will show the kubelet job with the error `401 Unauthorized`, when token authorization is not enabled. Ensure that the `--authorization-mode=Webhook` flag is enabled on all kubelet configurations.
### kube-state-metrics resource usaged
### kube-state-metrics resource usage
In some environments, kube-state-metrics may need additional
resources. One driver for more resource needs, is a high number of
namespaces. There may be others.
kube-state-metrics has it's resources using an
kube-state-metrics resource allocation is managed by
[addon-resizer](https://github.com/kubernetes/autoscaler/tree/master/addon-resizer/nanny)
You can control it's parameters by setting variables in the
config. They default to:
``` jsonnet
resizer+:: {
kubeStateMetrics+:: {
cpu: '100m',
extraCpu: '2m',
memory: '150Mi',
extraMemory: '30Mi',
},
baseCPU: '100m',
cpuPerNode: '2m',
baseMemory: '150Mi',
memoryPerNode: '30Mi',
}
```

32
jsonnet/kube-prometheus/kube-state-metrics/kube-state-metrics.libsonnet
View File

@@ -5,19 +5,14 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
namespace: 'default',
kubeStateMetrics+:: {
// when this is an empty string, you get the default set
collectors: '',
scrapeTimeout: '',
collectors: '', // empty string gets a default set
scrapeInterval: '30s',
},
scrapeTimeout: '',
resizer+:: {
kubeStateMetrics+:: {
cpu: '100m',
extraCpu: '2m',
memory: '150Mi',
extraMemory: '30Mi',
},
baseCPU: '100m',
baseMemory: '150Mi',
cpuPerNode: '2m',
memoryPerNode: '30Mi',
},
versions+:: {
@@ -153,20 +148,19 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
'--port=8081',
'--telemetry-host=127.0.0.1',
'--telemetry-port=8082',
'--collectors=' + $._config.kubeStateMetrics.collectors,
]) +
container.mixin.resources.withRequests({ cpu: $._config.resizer.kubeStateMetrics.cpu, memory: $._config.resizer.kubeStateMetrics.memory }) +
container.mixin.resources.withLimits({ cpu: $._config.resizer.kubeStateMetrics.cpu, memory: $._config.resizer.kubeStateMetrics.memory });
] + if $._config.kubeStateMetrics.collectors != '' then ['--collectors=' + $._config.kubeStateMetrics.collectors] else []) +
container.mixin.resources.withRequests({ cpu: $._config.kubeStateMetrics.baseCPU, memory: $._config.kubeStateMetrics.baseMemory }) +
container.mixin.resources.withLimits({ cpu: $._config.kubeStateMetrics.baseCPU, memory: $._config.kubeStateMetrics.baseMemory });
local addonResizer =
container.new('addon-resizer', $._config.imageRepos.addonResizer + ':' + $._config.versions.addonResizer) +
container.withCommand([
'/pod_nanny',
'--container=kube-state-metrics',
'--cpu=' + $._config.resizer.kubeStateMetrics.cpu,
'--extra-cpu=' + $._config.resizer.kubeStateMetrics.extraCpu,
'--memory=' + $._config.resizer.kubeStateMetrics.memory,
'--extra-memory=' + $._config.resizer.kubeStateMetrics.extraMemory,
'--cpu=' + $._config.kubeStateMetrics.baseCPU,
'--extra-cpu=' + $._config.kubeStateMetrics.cpuPerNode,
'--memory=' + $._config.kubeStateMetrics.baseMemory,
'--extra-memory=' + $._config.kubeStateMetrics.memoryPerNode,
'--threshold=5',
'--deployment=kube-state-metrics',
]) +