k8s endpoints 原理

 

 

 验证：

启动一个nginx

apiVersion: apps/v1
kind: Deployment
metadata:  
  name: nginx-deployment   
  labels:
    app: nginx
spec: 
  replicas: 1 
  selector: 
    matchLabels: 
      app: nginx
  template:
    metadata: 
      labels: 
        app: nginx
    spec:  
      containers:  
　　　   - name: nginx  
　　　　 imagePullPolicy: Always
        image: nginx:1.8.0   

---
apiVersion: v1  
kind: Service  
metadata:
  name: nginx-service
  labels:
    app: nginx
spec:
  ports:
  - port: 80            ##内部端口
    targetPort: 80   ##映射端口
  selector:       ##选择器/
    app: nginx

 

关联svc

apiVersion: v1
kind: Endpoints
metadata:
  name: nginx-service
subsets:
  - addresses:
      - ip: 192.0.2.42
    ports:
      - port: 9376