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examples: add anti-affinity example and include it in readme

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paulfantom
2021-04-23 09:38:23 +02:00
parent dd1b9d00e3
commit cd755f2487
2 changed files with 33 additions and 2 deletions
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19
README.md
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@@ -639,9 +639,24 @@ In order to configure a static etcd cluster to scrape there is a simple [kube-pr
To prevent `Prometheus` and `Alertmanager` instances from being deployed onto the same node when
possible, one can include the [kube-prometheus-anti-affinity.libsonnet](jsonnet/kube-prometheus/addons/anti-affinity.libsonnet) mixin:
[embedmd]:# (examples/anti-affinity.jsonnet)
```jsonnet
(import 'kube-prometheus/kube-prometheus.libsonnet') +
(import 'kube-prometheus/addons/anti-affinity.libsonnet')
local kp = (import 'kube-prometheus/main.libsonnet') +
(import 'kube-prometheus/addons/anti-affinity.libsonnet') + {
values+:: {
common+: {
namespace: 'monitoring',
},
},
};
{ ['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) }
```
### Stripping container resource limits

16
examples/anti-affinity.jsonnet Normal file
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@@ -0,0 +1,16 @@
local kp = (import 'kube-prometheus/main.libsonnet') +
(import 'kube-prometheus/addons/anti-affinity.libsonnet') + {
values+:: {
common+: {
namespace: 'monitoring',
},
},
};
{ ['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) }