mirror of
https://github.com/lensapp/lens.git
synced 2025-05-20 05:10:56 +00:00
73 lines
1.8 KiB
Markdown
73 lines
1.8 KiB
Markdown
# Using Custom Prometheus
|
|
|
|
When using custom prometheus with Lens app, Lens expects certain things for prometheus rules and labels. Below is listed the changes required to see metrics properly.
|
|
|
|
## kube-prometheus
|
|
|
|
### Manual
|
|
|
|
1. To see node metrics properly, please add
|
|
|
|
```
|
|
- action: replace
|
|
regex: (.*)
|
|
replacement: $1
|
|
sourceLabels:
|
|
- __meta_kubernetes_pod_node_name
|
|
targetLabel: kubernetes_node
|
|
```
|
|
|
|
relabeling to `node-exporter` servicemonitor crd (for example `kubectl edit -n monitoring servicemonitors node-exporter`).
|
|
|
|
2. To see cluster's pod usage on cluster overview properly, please add `metricsRelabeling` to `kubelet` service monitor (`kubectl edit -n monitoring servicemonitors kubelet`)
|
|
|
|
```
|
|
metricRelabelings:
|
|
- action: replace
|
|
sourceLabels:
|
|
- node
|
|
targetLabel: instance
|
|
```
|
|
|
|
### Jsonnet
|
|
|
|
The required label replacements are bundled in [jsonnet/custom-prometheus](../jsonnet/custom-prometheus.jsonnet). To install it copy the file or use
|
|
[Jsonnet Bundler](https://github.com/jsonnet-bundler/jsonnet-bundler). For jsonnet bundler add the following dependency to your `jsonnetfile.json`:
|
|
|
|
```
|
|
{
|
|
"name": "lens",
|
|
"source": {
|
|
"git": {
|
|
"remote": "https://github.com/lensapp/lens",
|
|
"subdir": "jsonnet"
|
|
}
|
|
},
|
|
"version": "master"
|
|
}
|
|
```
|
|
|
|
and run `jb install`. When the installation was successful include it into your definitions. Using the [example](https://github.com/coreos/kube-prometheus#compiling)
|
|
of kube-prometheus, e.g.:
|
|
|
|
```
|
|
local kp =
|
|
(import 'kube-prometheus/kube-prometheus.libsonnet') +
|
|
(import 'lens/custom-prometheus.jsonnet') +
|
|
{
|
|
_config+:: {
|
|
namespace: 'monitoring',
|
|
},
|
|
};
|
|
...
|
|
```
|
|
|
|
## Helm chart
|
|
|
|
1. To see cpu metrics properly, please set value of `server.global.scrape_timeout` less than 1 minute, for example
|
|
|
|
```
|
|
helm upgrade --set server.global.scrape_interval=30s prometheus stable/prometheus
|
|
```
|
|
|