Kubernetes Metrics Server (KMS)

wikipedia:Kubernetes Metrics Server collects resource metrics from Kubelets and exposes them in Kubernetes apiserver through Metrics API for use by Horizontal Pod Autoscaler HPA, Vertical Pod Autoscaler (VPA) and kubectl top.

• https://github.com/kubernetes-sigs/metrics-server

Installation

• helm repo add metrics-server https://kubernetes-sigs.github.io/metrics-server/
• helm upgrade --install metrics-server metrics-server/metrics-server

• kubectl get deployment metrics-server -n kube-system

Related

• CPU, https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/#resource-units-in-kubernetes
• kubectl top
• Kubernetes dashboard
• Kubernetes API Server
• kubectl get pods
• Kube-state-metrics (KSM)
• Prometheus

See also

• Kubernetes Metrics Server, Kubernetes autoscaling, kubectl top
• K8s troubleshooting: kubectl logs, kubectl top, kubectl get events -A, kubectl describe pod, Liveness, Readiness, Kubernetes events, Pulling image, OOMKilled, ProbeWarning, Reason, FailedScheduling, errImagePull, ImagePullBackOff, Kubelet conditions: MemoryPressure, DiskPressure, KubeletHasSufficientPID, KubeletReady, kubectl [ debug | attach | exec ] kubectl cluster-info dump, SimKube, KWOK