在主节点解析问题上部署Pod的问题

Question

我正在测试将两个Pod分别部署在主节点和一个工作节点上，以进行学习。

我有以下yaml文件，用于在主节点上的群集上部署Pod。

apiVersion: v1 
kind: Pod
metadata:
name: edge-server
labels: 
    app: edge-server
spec:
 containers:
  - name:  tensor-keras
    image: tensor-keras:latest
    command: ["sleep"]
    args: ["infinity"]
    imagePullPolicy: Never
    ports:
    - containerPort: 31700
   nodeSelector:
       node_type: "kmaster" #also tried without quotes 

我已将主节点标记为node_type kmaster，正在检索以下错误
“错误分析行15找不到预期的密钥”

非常感谢您的帮助

Answer 1

它可能不喜欢您的缩进。这有点不合时宜。一个文档中有多个缩进级别。我看到单，双和4空格缩进。 YAML缩进非常重要，否则会生成错误的JSON。试试这个：

apiVersion: v1 
kind: Pod
metadata:
  name: edge-server
  labels: 
    app: edge-server
spec:
  containers:
    - name:  tensor-keras
      image: tensor-keras:latest
      command: ["sleep"]
      args: ["infinity"]
      imagePullPolicy: Never
      ports:
      - containerPort: 31700
  nodeSelector:
    node_type: kmaster

Answer 2

尝试一下，也在http://www.yamllint.com/中进行验证

apiVersion: v1 
kind: Pod
metadata:
name: edge-server
labels: 
    app: edge-server
spec:
    containers:
     - name:  tensor-keras
       image: tensor-keras:latest
       command: ["sleep"]
       args: ["infinity"]
       imagePullPolicy: Never
       ports:
        - containerPort: 31700
       nodeSelector:
          node_type: "kmaster"

Answer 3

nodeSelector应该与containers处于同一级别。我们可以始终使用this K8s API reference来确认结构。

apiVersion: v1 
kind: Pod
metadata:
name: edge-server
labels: 
  app: edge-server
spec:
    containers:
    - name:  tensor-keras
      image: tensor-keras:latest
      command: ["sleep"]
      args: ["infinity"]
      imagePullPolicy: Never
      ports:
      - containerPort: 31700
    nodeSelector:
      node_type: "kmaster" #also tried without quotes