Container Service for Kubernetes:Example on how to use ACK SDK for Java

Step 1: Read the API reference

Before you call the API, we recommend that you read Create an ACK managed cluster to learn about the API parameters and required parameters. For more information about the API parameters, see List of operations by function.

Step 2: Create a RAM user and grant permissions to the RAM user

You can call the API by using an Alibaba Cloud account, a RAM user, or a RAM role. For more information about the differences among these identities, see Identity.

1. Create a RAM user.

   1. Use your Alibaba Cloud account to log on to the RAM console.

   2. In the left-side navigation pane, choose Identities > Users.

   3. On the Users page, click Create User.

   4. On the Create User page, configure the Logon Name and Display Name parameters, and set the Access Mode parameter to Console Access.

   5. Click OK.

      After the RAM user is created, record the username and password of the RAM user. When you call the API, you need to use the RAM user to log on to the OpenAPI Explorer console.

2. Grant the AliyunCSFullAccess permission to the RAM user. For more information, see Grant permissions to a RAM user.

   Note

   AliyunCSFullAccess: provides full permissions on Container Service for Kubernetes.

   AliyunCSReadOnlyAccess: provide read permissions on Container Service for Kubernetes.

   For more information about how to create a custom policy, see RAM authorization.

3. You can also go to the user details page, click the Authentication tab, and then click Create AccessKey to create an AccessKey pair. For more information, see Create an AccessKey pair.

Step 3: Call the API

This example shows how to use the RAM user to call the CreateCluster API operation to create an ACK Pro cluster. ACK SDK for Java is used in this example. You can use SDKs for other programming languages in a similar way. For more information, see Container Service for Kubernetes. In addition to the ACK SDK, you can use other methods to call the API operation. For more information, see Call methods.

Configure environment variables

Before you call the API operation, you need to configure environment variables to obtain the credentials. For more information, see Configure environment variables in Linux, macOS, and Windows.

Download the SDK demo

1. Access CreateCluster.

2. On the Parameters tab, configure the parameters and click Initiate Call.

   • Sample value of name: test

   • Sample value of region_id: cn-beijing

   • Sample value of cluster_type: ManagedKubernetes

   • Sample value of cluster_spec: ack.pro.small

   • Sample value of cluster_version: 1.30.1-aliyun.1

   • Sample value of vpcid: vpc-2zedl8cyb7tnkaux1****

   • Sample value of container_cidr: 10.0.0.0/8

   • Sample value of service_cidr: 172.21.0.0/20

   • Sample value of vswitch_ids: vsw-2ze7hfp0ah8rk1nz9****

3. On the right-side SDK Sample Code tab, select version 2.0 and specify the language, and click Download Project to your on-premises machine and decompress the package.

   Note

   We recommend that you use the 2.0 version. For more information about the differences between version 1.0 and 2.0, see Alibaba Cloud SDK V1.0 and V2.0.

   

Run the SDK demo

1. Open IntelliJ IDEA, choose File->Open, select the folder of the project that you decompressed, and wait for Maven to install dependencies.

2. Run the sample code.

   Double-click Sample. Confirm that no error is thrown and run the sample code.

3. View the result.

   Search for statusCode in the lower part of the console. If "statusCode":202 is displayed, the API operation is called and ACK is creating the cluster. You can also log on to the ACK console and go to the Clusters page to view the newly created cluster.