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kube-prometheus: Add kube-prometheus mixin to configure static etcd

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Frederic Branczyk
2018-06-26 14:12:49 +02:00
parent 2a96d77dd9
commit ad748858e3
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README.md
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@@ -285,6 +285,37 @@ In the above example the configuration has been inlined, but can just as well be
},
}).alertmanager.secret
```
### Static etcd configuration
In order to configure a static etcd cluster to scrape there is a simple mixin prepared, so only the IPs and certificate information need to be configured. Simply append the `kube-prometheus/kube-prometheus-static-etcd.libsonnet` mixin to the rest of the configuration, and configure the `ips` to be the IPs to scrape, and the `clientCA`, `clientKey` and `clientCert` to values that are valid to scrape etcd metrics with.
Most likely these certificates are generated somewhere in an infrastructure repository, so using the jsonnet `importstr` function can be useful here. All the sensitive information on the certificates will end up in a Kubernetes Secret.
[embedmd]:# (examples/etcd.jsonnet)
```jsonnet
local kp = (import 'kube-prometheus/kube-prometheus.libsonnet') +
(import 'kube-prometheus/kube-prometheus-static-etcd.libsonnet') + {
_config+:: {
namespace: 'monitoring',
etcd+:: {
ips: ['127.0.0.1'],
clientCA: importstr 'etcd-client-ca.crt',
clientKey: importstr 'etcd-client.key',
clientCert: importstr 'etcd-client.crt',
serverName: 'etcd.my-cluster.local',
},
},
};
{ ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) } +
{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) } +
{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) } +
{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) } +
{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) }
```
### Customizing Prometheus alerting/recording rules and Grafana dashboards