kubernetes - Kubernetes-为什么选择器字段无法验证部署？

Question

使用Kubernetes 1.2.4，为什么我的下面Deployment定义(redis.yaml)导致以下错误？

$ kubectl apply -f redis.yaml
error validating "redis.yaml": error validating data: found invalid field name for v1beta1.LabelSelector; if you choose to ignore these errors, turn validation off with --validate=false

redis.yaml:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: redis
spec:
  replicas: 3
  selector:
    name: redis
  template:
    metadata:
      labels:
        name: redis
    spec:
      containers:
      - name: redis
        image: kubernetes/redis:v1
        ports:
        - containerPort: 6379
        resources:
          limits:
            cpu: "0.1"
        volumeMounts:
        - mountPath: /redis-master-data
          name: data
      volumes:
        - name: data
          emptyDir: {}

Answer 1

在Deployments require中的选择器指令可以使用matchLabels或matchExpressions的子字段，因此在我的情况下，我需要使用matchLabels:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: redis
spec:
  replicas: 3
  selector:
    matchLabels:
      name: redis
  template:
    metadata:
      labels:
        name: redis
    spec:
      containers:
      - name: redis
        image: kubernetes/redis:v1
        ports:
        - containerPort: 6379
        resources:
          limits:
            cpu: "0.1"
        volumeMounts:
        - mountPath: /redis-master-data
          name: data
      volumes:
        - name: data
          emptyDir: {}