pod

pod是k8s里的最小原子单元。

pod可以简写为po。

使用run命令创建一个pod

  • 通过最简单的方式创建一个pod
[root@k8s1 ~]# kubectl run nginx --image=nginx
deployment.apps/nginx created
[root@k8s1 ~]# kubectl get deployments
NAME      DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
nginx     1         1         1            1           2m
[root@k8s1 ~]# kubectl get pod -o wide
NAME                     READY     STATUS    RESTARTS   AGE       IP           NODE               NOMINATED NODE
busybox                  1/1       Running   0          40m       10.244.1.2   k8s2.shenmin.com   <none>
nginx-64f497f8fd-mk2vr   1/1       Running   0          3m        10.244.1.3   k8s2.shenmin.com   <none>
[root@k8s1 ~]# curl 10.244.1.3
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

删除pod