[kubernetes] component statuses 에러

kubectl get componentstatuses 에러

$ kubectl get componentstatuses                              
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME                 STATUS      MESSAGE                                                                                       ERROR
scheduler            Unhealthy   Get "http://127.0.0.1:10251/healthz": dial tcp 127.0.0.1:10251: connect: connection refused   
controller-manager   Unhealthy   Get "http://127.0.0.1:10252/healthz": dial tcp 127.0.0.1:10252: connect: connection refused   
etcd-0               Healthy     {"health":"true"}

 

kube-controller-manager.yaml

27번 줄 (--port=0) 주석

$ vim /etc/kubernetes/manifests/kube-controller-manager.yaml
  1 apiVersion: v1
  2 kind: Pod
  3 metadata:
  4   creationTimestamp: null
  5   labels:
  6     component: kube-controller-manager
  7     tier: control-plane
  8   name: kube-controller-manager
  9   namespace: kube-system
 10 spec:
 11   containers:
 12   - command:
 13     - kube-controller-manager
 14     - --allocate-node-cidrs=true
 15     - --authentication-kubeconfig=/etc/kubernetes/controller-manager.conf
 16     - --authorization-kubeconfig=/etc/kubernetes/controller-manager.conf
 17     - --bind-address=127.0.0.1
 18     - --client-ca-file=/etc/kubernetes/pki/ca.crt
 19     - --cluster-cidr=10.244.0.0/16
 20     - --cluster-name=kubernetes
 21     - --cluster-signing-cert-file=/etc/kubernetes/pki/ca.crt
 22     - --cluster-signing-key-file=/etc/kubernetes/pki/ca.key
 23     - --controllers=*,bootstrapsigner,tokencleaner
 24     - --kubeconfig=/etc/kubernetes/controller-manager.conf
 25     - --leader-elect=true
 26     - --node-cidr-mask-size=24
 27     #- --port=0
 28     - --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt
 29     - --root-ca-file=/etc/kubernetes/pki/ca.crt
 30     - --service-account-private-key-file=/etc/kubernetes/pki/sa.key
 31     - --service-cluster-ip-range=10.96.0.0/12
 32     - --use-service-account-credentials=true

 

kube-scheduler.yaml

19번 줄 (--port=0) 주석

  $ vim /etc/kubernetes/manifests/kube-scheduler.yaml
  1 apiVersion: v1
  2 kind: Pod
  3 metadata:
  4   creationTimestamp: null
  5   labels:
  6     component: kube-scheduler
  7     tier: control-plane
  8   name: kube-scheduler
  9   namespace: kube-system
 10 spec:
 11   containers:
 12   - command:
 13     - kube-scheduler
 14     - --authentication-kubeconfig=/etc/kubernetes/scheduler.conf
 15     - --authorization-kubeconfig=/etc/kubernetes/scheduler.conf
 16     - --bind-address=127.0.0.1
 17     - --kubeconfig=/etc/kubernetes/scheduler.conf
 18     - --leader-elect=true
 19     #- --port=0

 

kubelet 재기동

$ systemctl restart kubelet.service

 

component statuses 확인

$ kubectl get componentstatuses
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME                 STATUS    MESSAGE             ERROR
scheduler            Healthy   ok                  
controller-manager   Healthy   ok                  
etcd-0               Healthy   {"health":"true"}