excludes metrics-server from CPUThrottling since it is inseanely high, but the CPU usage is fine

Author: NiklasJonssonYolean

kubernetes-mixin/alerts.yaml

@@ -360,9 +360,9 @@ spec:
         runbook_url: https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-cputhrottlinghigh
         summary: Processes experience elevated CPU throttling.
       expr: |
-        sum(increase(container_cpu_cfs_throttled_periods_total{container!="", }[5m])) by (container, pod, namespace)
+        sum(increase(container_cpu_cfs_throttled_periods_total{container!="", pod!~"metrics-server.*"}[5m])) by (container, pod, namespace)
           /
-        sum(increase(container_cpu_cfs_periods_total{}[5m])) by (container, pod, namespace)
+        sum(increase(container_cpu_cfs_periods_total{pod!~"metrics-server.*"}[5m])) by (container, pod, namespace)
           > ( 25 / 100 )
       for: 15m
       labels:

kubernetes-mixin/mixin.libsonnet

@@ -12,5 +12,6 @@ kubernetes {
     kubeStateMetricsSelector: 'job="kube-state-metrics"',
     nodeExporterSelector: 'job="node-exporter"',
     kubeletSelector: 'job="kubelet"',
+    cpuThrottlingSelector: 'pod!~"metrics-server.*"',
   },
 }