Manage applications from the command line

Prerequisites

Before you begin, ensure that you have:

• An ACK Serverless cluster

• kubectl installed and configured to connect to your cluster. For more information, see Connect to an ACK cluster by using kubectl

Deploy an NGINX application

1. Create a Deployment with an NGINX container image.

   kubectl run nginx --image=registry.cn-hangzhou.aliyuncs.com/spacexnice/netdia:latest

2. Expose the Deployment as a LoadBalancer service. The --type=LoadBalancer flag provisions a Server Load Balancer (SLB) instance and routes external traffic to the NGINX container on port 80.

   kubectl expose deployment nginx --port=80 --target-port=80 --type=LoadBalancer

Verify the deployment

List all pods in the default namespace to confirm the application is running.

kubectl get pods

The output is similar to:

NAME                                   READY     STATUS    RESTARTS   AGE
nginx-2721357637-d****                 1/1       Running   1          9h

A pod with STATUS: Running and READY: 1/1 indicates the deployment succeeded. The pod name suffix is auto-generated by Kubernetes.

What's next

• Scale your application by adjusting the number of replicas

• Update the container image to deploy a new version

• Delete the application when it is no longer needed