kubernetes常用资源——RC/RS

RC/RS副本控制器

Replication Controller:副本控制器（selector = !=）#第一代pod副本控制器

[root@haproxy1 case3-controller]# cat rc.yml 
apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: ng-rc
spec:  
  replicas: 2
  selector:  
    app: ng-rc-80 
    #app1: ng-rc-81
  template:   
    metadata:  
      labels:  
        app: ng-rc-80
        #app1: ng-rc-81
    spec:  
      containers:  
      - name: ng-rc-80 
        image: nginx  
        ports:  
        - containerPort: 80 

Replication Set: rs 支持matchlabels，可以支持labels In 或者NotIn

[root@haproxy1 case3-controller]# cat rs.yml 
#apiVersion: extensions/v1beta1
apiVersion: apps/v1 
kind: ReplicaSet
metadata:
  name: frontend
spec:
  replicas: 2
  selector:
    matchLabels:
      app: ng-rs-80
    #matchExpressions:
    #  - {key: app, operator: In, values: [ng-rs-80,ng-rs-81]}
  template:
    metadata:
      labels:
        app: ng-rs-80
    spec:  
      containers:  
      - name: ng-rs-80 
        image: nginx  
        ports:  
        - containerPort: 80