kubernetes利用yaml配置文件创建pod出错！

apiVersion: v1
kind: Pod
metadata:
  name: nginx
  namespace: dev
spec:
  containers:
  - image: nginx:1.17.1
    name: pod
    ports:
    - name: nginx-port
    containerPort: 80
    protocol: TCP

上面是pod-nginx.yaml的代码块；
[root@master ~]# kubectl create -f pod-nginx.yaml
error: error validating "pod-nginx.yaml": error validating data: [ValidationError(Pod.spec.containers[0]): unknown field "containerPort" in io.k8s.api.core.v1.Container, ValidationError(Pod.spec.containers[0].ports[0]): missing required field "containerPort" in io.k8s.api.core.v1.ContainerPort, ValidationError(Pod.spec.containers[0]): unknown field "protocol" in io.k8s.api.core.v1.Container]; if you choose to ignore these errors, turn validation off with --validate=false

已经解决，是空格缩进问题；