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kubernetes-system-kubelet — alerts

Alert Severity Summary Runbook
KubeNodeNotReady warning Node is not ready. runbook
KubeNodePressure info Node has as active Condition. upstream ↗
KubeNodeUnreachable warning Node is unreachable. runbook
KubeletTooManyPods info Kubelet is running at capacity. runbook
KubeNodeReadinessFlapping warning Node readiness status is flapping. runbook
KubeNodeEviction info Node is evicting pods. upstream ↗
KubeletPlegDurationHigh warning Kubelet Pod Lifecycle Event Generator is taking too long to relist. runbook
KubeletPodStartUpLatencyHigh warning Kubelet Pod startup latency is too high. runbook
KubeletClientCertificateExpiration warning Kubelet client certificate is about to expire. runbook
KubeletClientCertificateExpiration critical Kubelet client certificate is about to expire. runbook
KubeletServerCertificateExpiration warning Kubelet server certificate is about to expire. runbook
KubeletServerCertificateExpiration critical Kubelet server certificate is about to expire. runbook
KubeletClientCertificateRenewalErrors warning Kubelet has failed to renew its client certificate. runbook
KubeletServerCertificateRenewalErrors warning Kubelet has failed to renew its server certificate. runbook
KubeletInstanceUnreachable warning Kubelet instance is unreachable. upstream ↗
KubeletDown critical Target disappeared from Prometheus target discovery. runbook