Scaling In a Logical Cluster

package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.dws.v2.region.DwsRegion;
import com.huaweicloud.sdk.dws.v2.*;
import com.huaweicloud.sdk.dws.v2.model.*;

import java.util.List;
import java.util.ArrayList;

public class ShrinkLogicalClusterSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        DwsClient client = DwsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DwsRegion.valueOf("<YOUR REGION>"))
                .build();
        ShrinkLogicalClusterRequest request = new ShrinkLogicalClusterRequest();
        request.withClusterId("{cluster_id}");
        request.withLogicalClusterId("{logical_cluster_id}");
        ShrinkLogicalClusterRequestBody body = new ShrinkLogicalClusterRequestBody();
        List<RingHost> listClusterRingsRingHosts = new ArrayList<>();
        listClusterRingsRingHosts.add(
            new RingHost()
                .withHostName("host-192-168-37-200")
                .withBackIp("192.168.88.41")
                .withCpuCores(4)
                .withMemory((double)16)
                .withDiskSize((double)110)
        );
        listClusterRingsRingHosts.add(
            new RingHost()
                .withHostName("host-192-168-6-50")
                .withBackIp("192.168.72.33")
                .withCpuCores(4)
                .withMemory((double)16)
                .withDiskSize((double)110)
        );
        listClusterRingsRingHosts.add(
            new RingHost()
                .withHostName("host-192-168-8-183")
                .withBackIp("192.168.90.60")
                .withCpuCores(4)
                .withMemory((double)16)
                .withDiskSize((double)110)
        );
        List<ClusterRing> listbodyClusterRings = new ArrayList<>();
        listbodyClusterRings.add(
            new ClusterRing()
                .withRingHosts(listClusterRingsRingHosts)
        );
        body.withClusterRings(listbodyClusterRings);
        request.withBody(body);
        try {
            ShrinkLogicalClusterResponse response = client.shrinkLogicalCluster(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdws.v2.region.dws_region import DwsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdws.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = DwsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DwsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShrinkLogicalClusterRequest()
        request.cluster_id = "{cluster_id}"
        request.logical_cluster_id = "{logical_cluster_id}"
        listRingHostsClusterRings = [
            RingHost(
                host_name="host-192-168-37-200",
                back_ip="192.168.88.41",
                cpu_cores=4,
                memory=16,
                disk_size=110
            ),
            RingHost(
                host_name="host-192-168-6-50",
                back_ip="192.168.72.33",
                cpu_cores=4,
                memory=16,
                disk_size=110
            ),
            RingHost(
                host_name="host-192-168-8-183",
                back_ip="192.168.90.60",
                cpu_cores=4,
                memory=16,
                disk_size=110
            )
        ]
        listClusterRingsbody = [
            ClusterRing(
                ring_hosts=listRingHostsClusterRings
            )
        ]
        request.body = ShrinkLogicalClusterRequestBody(
            cluster_rings=listClusterRingsbody
        )
        response = client.shrink_logical_cluster(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dws "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := dws.DwsClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := dws.NewDwsClient(hcClient)

    request := &model.ShrinkLogicalClusterRequest{}
	request.ClusterId = "{cluster_id}"
	request.LogicalClusterId = "{logical_cluster_id}"
	var listRingHostsClusterRings = []model.RingHost{
        {
            HostName: "host-192-168-37-200",
            BackIp: "192.168.88.41",
            CpuCores: int32(4),
            Memory: float64(16),
            DiskSize: float64(110),
        },
        {
            HostName: "host-192-168-6-50",
            BackIp: "192.168.72.33",
            CpuCores: int32(4),
            Memory: float64(16),
            DiskSize: float64(110),
        },
        {
            HostName: "host-192-168-8-183",
            BackIp: "192.168.90.60",
            CpuCores: int32(4),
            Memory: float64(16),
            DiskSize: float64(110),
        },
    }
	var listClusterRingsbody = []model.ClusterRing{
        {
            RingHosts: listRingHostsClusterRings,
        },
    }
	request.Body = &model.ShrinkLogicalClusterRequestBody{
		ClusterRings: &listClusterRingsbody,
	}
	response, err := client.ShrinkLogicalCluster(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}