Kubernetes：编辑部署时服务器出错

Question

我有Deployment：

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: app-deployment
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: app
    spec:
      containers:
      - name: app
        image: 172.20.34.206:5000/myapp_img:1.0
        ports:
    - containerPort: 8080

现在，我想将图像从1.0升级到2.0，所以我这样做：

$ kubectl patch deployment app-deployment -p '{"spec":{"containers":[{"name":"myapp","image":"172.20.34.206:5000/myapp_img:2.0"}]}}'

但是我收到了这个错误：

  

服务器出错：服务器拒绝了我们的未知请求   原因（patch deployments.extensions app-deployment）

如果我通过Deployment修改kubectl edit deployment/app-deployment，它就可以正常使用。