在指定命名空间下创建Pod

[root@k8s-master ~]# kubectl create ns yztest-nginx
namespace/yztest-nginx created

[root@k8s-master ~]# cat pod-1.yaml 
apiVersion: v1
kind: Pod
metadata:
  namespace: yztest-nginx
  name: test-pod
  labels:
    app: test
    version: v2
spec:
  containers:
    - name: nginx
      imagePullPolicy: IfNotPresent
      image: nginx:1.17

[root@k8s-master ~]# kubectl apply -f pod-1.yaml 
pod/test-pod created

[root@k8s-master ~]# kubectl get pods
NAME                         READY   STATUS    RESTARTS   AGE
myapp-pod                    2/2     Running   0          117m
mysql-rc-jjsmp               1/1     Running   2          48d
mysql-rc-lc22m               1/1     Running   2          52d
mysql-rc-nkdrh               1/1     Running   2          48d
nginx-app-756ffb5cc8-52hdh   1/1     Running   0          4d18h
nginx-app-756ffb5cc8-bgcbh   1/1     Running   0          4d18h
nginx-app-756ffb5cc8-smztw   1/1     Running   0          4d18h

[root@k8s-master ~]# kubectl get pods -n yztest-nginx
NAME       READY   STATUS    RESTARTS   AGE
test-pod   1/1     Running   0          10s