[root@k8s-master metrics-server]# kubectl describe apiservice v1beta1.metrics.k8s.io
Name:         v1beta1.metrics.k8s.io
Namespace:
Labels:       <none>
Annotations:  kubectl.kubernetes.io/last-applied-configuration:
                {"apiVersion":"apiregistration.k8s.io/v1beta1","kind":"APIService","metadata":{"annotations":{},"name":"v1beta1.metrics.k8s.io"},"spec":{"...
API Version:  apiregistration.k8s.io/v1
Kind:         APIService
Metadata:
  Creation Timestamp:  2021-02-18T06:53:58Z
  Resource Version:    22743
  Self Link:           /apis/apiregistration.k8s.io/v1/apiservices/v1beta1.metrics.k8s.io
  UID:                 21c0826c-5f0b-4a3b-aafa-ffa9d4b44e13
Spec:
  Group:                     metrics.k8s.io
  Group Priority Minimum:    100
  Insecure Skip TLS Verify:  true
  Service:
    Name:            metrics-server
    Namespace:       kube-system
    Port:            443
  Version:           v1beta1
  Version Priority:  100
Status:
  Conditions:
    Last Transition Time:  2021-02-18T06:53:58Z
    Message:               failing or missing response from https://10.96.66.96:443/apis/metrics.k8s.io/v1beta1: Get https://10.96.66.96:443/apis/metrics.k8s.io/v1beta1: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
    Reason:                FailedDiscoveryCheck
    Status:                False
    Type:                  Available
Events:                    <none>

v1beta1.metrics.k8s.io                 kube-system/metrics-server   False (FailedDiscoveryCheck)   11s

发现metrics一直起不来

尝试在/etc/kubernetes/manifests/kube-apiserver.yaml添加

- --enable-aggregator-routing=true