Kubernetes Metrics Server Operations: Difference between revisions

From NovaOrdis Knowledge Base
Jump to navigation Jump to search
Line 32: Line 32:
It is deployed in the 'kube-system' namespace.
It is deployed in the 'kube-system' namespace.
===Configuration===
===Configuration===
For Docker Desktop Kubernetes, add "--kubelet-insecure-tls":
<syntaxhighlight lang='yaml'>
<syntaxhighlight lang='yaml'>
kind: Deployment
kind: Deployment
Line 42: Line 43:
       - name: metrics-server
       - name: metrics-server
         args:
         args:
          - --kubelet-insecure-tls
           - --cert-dir=/tmp
           - --cert-dir=/tmp
           - --secure-port=4443
           - --secure-port=4443

Revision as of 01:47, 6 October 2020

External

Internal

Help

docker run --rm k8s.gcr.io/metrics-server/metrics-server:v0.3.7 --help

Installation

https://github.com/kubernetes-sigs/metrics-server#requirements

Docker Desktop Kubernetes

Install

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.3.7/components.yaml

If configuration needs to be changed, pull the file locally and install it with:

kubectl apply -f ./components.yaml

clusterrole.rbac.authorization.k8s.io/system:aggregated-metrics-reader created
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator created
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader created
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io created
serviceaccount/metrics-server created
deployment.apps/metrics-server created
service/metrics-server created
clusterrole.rbac.authorization.k8s.io/system:metrics-server created
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server created

It is deployed in the 'kube-system' namespace.

Configuration

For Docker Desktop Kubernetes, add "--kubelet-insecure-tls":

kind: Deployment
metadata:
  name: metrics-server
spec:
  template:
    spec:
      containers:
      - name: metrics-server
        args:
          - --kubelet-insecure-tls
          - --cert-dir=/tmp
          - --secure-port=4443

Uninstall

EKS

https://docs.aws.amazon.com/eks/latest/userguide/horizontal-pod-autoscaler.html

Installation Validation

kubectl top