Kubernetes使用yaml创建Deployment报v1版本无法处理语法问题求助

存在的3处语法/逻辑错误 #

• 缺省API版本声明：第一个Deployment资源未配置apiVersion: apps/v1字段，K8s无法识别资源所属的API组，直接触发解析异常。
• Labels格式非法：两处Pod模板的.spec.template.metadata.labels均被错误赋值为字符串test，K8s要求labels必须为键值对映射结构，这是报错信息中expect { or n, but found "的直接诱因。
• 标签匹配异常：spec.selector.matchLabels中键名拼写为enviroment，和上层metadata定义的environment、Pod模板标签拼写不一致，即使修复前两个问题，也会出现Deployment无法匹配Pod模板的错误。

修复后完整YAML #

apiVersion: apps/v1
kind: Deployment
metadata:
    labels:
      environment: test
    name: agentstubpod-deployment
spec:
  replicas: 3
  selector: 
    matchLabels: 
      environment: test
  minReadySeconds: 10
  strategy: 
    rollingUpdate: 
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template: 
    metadata:
      labels:
        environment: test
    spec: 
      containers:
      - name: agentstub
        image: some-repo:latest 
---
apiVersion: apps/v1
kind: Deployment
metadata:
    labels:
      environment: test
    name: proxystubpod-deployment
spec:
  replicas: 3
  selector: 
    matchLabels: 
      environment: test
  minReadySeconds: 10
  strategy: 
    rollingUpdate: 
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template: 
    metadata:
      labels:
        environment: test
    spec: 
      containers:
      - name: procyservice
        image: some-repo:latest

本地校验方法 #

你可以在提交到集群前，先执行本地校验命令提前发现问题：
kubectl apply -f deployment_test.yaml --dry-run=client

内容的提问来源于stack exchange，提问作者Manav Joshi