Container Service for Kubernetes:Create an ACK Serverless cluster by using Alibaba Cloud CLI

Install and set up Alibaba Cloud CLI and kubectl

Install and set up a kubectl client. For more information, see Install and Set Up kubectl.

Create an ACK Serverless cluster

1. Create a working directory and a file named create.json in the directory.

   The following template is an example of the create.json file:

   {
       "cluster_type": "Ask",
       "name": "test-serverless-k8s",
       "region_id": "cn-beijing",
       "zoneid": "cn-beijing-h",
       "nat_gateway": true,
       "private_zone": false,
       "tags": [
           {"key": "env", "value": "test"}
       ]
   }
                           

   The preceding sample template describes the configurations that are used to create an ACK Serverless cluster. For more information, see Create an ACK Serverless cluster.

2. Run the following command to create an ACK Serverless cluster:

   aliyun cs  POST /clusters --header "Content-Type=application/json" --body "$(cat create.json)"                       

   {
       "cluster_id": "************************",
       "instanceId": "************************",
       "request_id": "**********-****-****-****-************",
       "task_id": "*-************"
   }

3. After the ACK Serverless cluster is created, run the following command to query information about the cluster:

   aliyun cs GET /clusters/<YOUR-CLUSTER-ID>                    

   Expected output:

     {
         "-": "PayByTraffic",
         "cluster_healthy": "",
         "cluster_id": "************************",
         "cluster_spec": "",
         "cluster_type": "Ask",
         "created": "2020-07-23T10:02:18+08:00",
         "current_version": "v1.16.6-aliyun.1",
         "data_disk_category": "cloud",
         "data_disk_size": 0,
         "deletion_protection": false,
         "docker_version": "",
         "enabled_migration": false,
         "external_loadbalancer_id": "lb-*********",
         "gw_bridge": "",
         "init_version": "v1.16.6-aliyun.1",
         "instance_type": "",
         "name": "test-serverless-k8s",
         "need_update_agent": false,
         "network_mode": "vpc",
         "node_status": "",
         "private_zone": false,
         "profile": "ask.v2",
         "region_id": "cn-beijing",
         "resource_group_id": "rg-*********",
         "security_group_id": "sg-*********",
         "size": 0,
         "state": "running",
         "subnet_cidr": "172.16.0.0/16",
         "swarm_mode": false,
         "tags": [
             {
                 "key": "env",
                 "value": "test"
             }
         ],
         "updated": "2020-07-23T10:05:11+08:00",
         "vpc_id": "vpc-*********",
         "vswitch_cidr": "",
         "vswitch_id": "vsw-*********",
         "worker_ram_role_name": ""
     }   

4. Run the following command to query the cluster configurations:

   KUBECONFIG=<YOUR-LOCAL-KUBECONFIG-PATH>
   aliyun cs GET /k8s/$cluster_id/user_config | jq -r '.config' > $KUBECONFIG

   Expected output:

   NAME              STATUS   AGE
   default           Active   7m43s
   kube-node-lease   Active   7m45s
   kube-public       Active   7m45s
   kube-system       Active   7m45s

Test the ACK Serverless cluster

1. Run the following command to deploy an NGINX application in the ACK Serverless cluster:

   kubectl run nginx --image=registry-vpc.cn-shenzhen.aliyuncs.com/acs-sample/nginx:latest

   Expected output:

   deployment.apps/nginx created

2. Run the following command to query the state of the NGINX application:

   kubectl get deploy nginx

   Expected output:

    NAME    READY   UP-TO-DATE   AVAILABLE   AGE
    nginx   1/1     1            1           58s

Delete and release resources

• Run the following command to delete the NGINX application:

  kubectl delete deploy nginx

  Expected output:

  deployment.extensions "nginx" deleted

• You can also run the following command to delete the ACK Serverless cluster and release the relevant resources, such as the virtual private cloud (VPC) where the cluster is deployed:

  aliyun cs DELETE /clusters/************