无法发现kube-controller-manager 问题

原资源定义prometheus-serviceMonitorKubeControllerManager.yaml(k8s:1.18.2)

与kubescheduler问题相同，需要一个Service资源,所以我们需要手动创建一个 Service：（prometheus-KubeControllerManager.yaml）

apiVersion: v1
kind: Service
metadata:
  namespace: kube-system
  name: kube-controller-manager
  labels:
    k8s-app: kube-controller-manager
spec:
  selector:
    component: kube-controller-manager
  type: ClusterIP
  clusterIP: None
  ports:
  - name: http-metrics
    port: 10252
    targetPort: 10252
    protocol: TCP
---
apiVersion: v1
kind: Endpoints
metadata:
  labels:
    k8s-app: kube-controller-manager
  name: kube-controller-manager
  namespace: kube-system
subsets:
- addresses:
  - ip: 10.0.0.5
  - ip: 10.0.0.15
  - ip: 10.0.0.20
  ports:
  - name: http-metrics
    port: 10252
    protocol: TCP