查询k8s支持的对象

kubectl api-resources
# 查看当前版本支持的所有对象

kubectl explain pod 
kubectl explain pod.metadata
kubeclt explain pod.spec
kubeclt explain pod.containers
# k8s自带的文档，介绍对象字段

--dry-run=client # 空运行
-o yaml # 生成yaml

export out="--dry--run=client -o yaml"
kubectl run ngx --image=nginx:alpine $out
会生成一个绝对正确的YAML文件

apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: ngx
  name: ngx
spec:
  containers:
  - image: nginx:alpine
    name: ngx
    resources: {}
  dnsPolicy: ClusterFirst
  restartPolicy: Always
status: {}