Virtual Machines - List Hosts

Reference

Service:: HDInsight

API Version:: 2021-06-01

Lists the HDInsight clusters hosts

POST https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.HDInsight/clusters/{clusterName}/listHosts?api-version=2021-06-01

URI Parameters

Name	In	Required	Type	Description
clusterName	path	True	string	The name of the cluster.
resourceGroupName	path	True	string	The name of the resource group.
subscriptionId	path	True	string	The subscription credentials which uniquely identify Microsoft Azure subscription. The subscription ID forms part of the URI for every service call.
api-version	query	True	string	The HDInsight client API Version.

Responses

Name	Type	Description
200 OK	HostInfo[]	OK response definition.
Other Status Codes	ErrorResponse	Error response describing why the operation failed.

Security

azure_auth

Azure Active Directory OAuth2 Flow

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

Get All hosts in the cluster

Sample request

POST https://management.azure.com/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.HDInsight/clusters/cluster1/listHosts?api-version=2021-06-01

import com.azure.core.util.Context;

/** Samples for VirtualMachines ListHosts. */
public final class Main {
    /*
     * x-ms-original-file: specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2021-06-01/examples/GetClusterVirtualMachines.json
     */
    /**
     * Sample code: Get All hosts in the cluster.
     *
     * @param manager Entry point to HDInsightManager.
     */
    public static void getAllHostsInTheCluster(com.azure.resourcemanager.hdinsight.HDInsightManager manager) {
        manager.virtualMachines().listHostsWithResponse("rg1", "cluster1", Context.NONE);
    }
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

from azure.identity import DefaultAzureCredential
from azure.mgmt.hdinsight import HDInsightManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-hdinsight
# USAGE
    python get_cluster_virtual_machines.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = HDInsightManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="subid",
    )

    response = client.virtual_machines.list_hosts(
        resource_group_name="rg1",
        cluster_name="cluster1",
    )
    print(response)


# x-ms-original-file: specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2021-06-01/examples/GetClusterVirtualMachines.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

package armhdinsight_test

import (
	"context"
	"log"

	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/hdinsight/armhdinsight"
)

// Generated from example definition: https://github.com/Azure/azure-rest-api-specs/blob/7a2ac91de424f271cf91cc8009f3fe9ee8249086/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2021-06-01/examples/GetClusterVirtualMachines.json
func ExampleVirtualMachinesClient_ListHosts() {
	cred, err := azidentity.NewDefaultAzureCredential(nil)
	if err != nil {
		log.Fatalf("failed to obtain a credential: %v", err)
	}
	ctx := context.Background()
	clientFactory, err := armhdinsight.NewClientFactory("<subscription-id>", cred, nil)
	if err != nil {
		log.Fatalf("failed to create client: %v", err)
	}
	res, err := clientFactory.NewVirtualMachinesClient().ListHosts(ctx, "rg1", "cluster1", nil)
	if err != nil {
		log.Fatalf("failed to finish the request: %v", err)
	}
	// You could use response here. We use blank identifier for just demo purposes.
	_ = res
	// If the HTTP response code is 200 as defined in example definition, your response structure would look as follows. Please pay attention that all the values in the output are fake values for just demo purposes.
	// res.HostInfoArray = []*armhdinsight.HostInfo{
	// 	{
	// 		Name: to.Ptr("gateway1"),
	// 	},
	// 	{
	// 		Name: to.Ptr("gateway3"),
	// 	},
	// 	{
	// 		Name: to.Ptr("headnode0"),
	// 	},
	// 	{
	// 		Name: to.Ptr("headnode3"),
	// 	},
	// 	{
	// 		Name: to.Ptr("workernode0"),
	// 	},
	// 	{
	// 		Name: to.Ptr("workernode1"),
	// 	},
	// 	{
	// 		Name: to.Ptr("zookeepernode0"),
	// 	},
	// 	{
	// 		Name: to.Ptr("zookeepernode2"),
	// 	},
	// 	{
	// 		Name: to.Ptr("zookeepernode3"),
	// }}
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

const { HDInsightManagementClient } = require("@azure/arm-hdinsight");
const { DefaultAzureCredential } = require("@azure/identity");

/**
 * This sample demonstrates how to Lists the HDInsight clusters hosts
 *
 * @summary Lists the HDInsight clusters hosts
 * x-ms-original-file: specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2021-06-01/examples/GetClusterVirtualMachines.json
 */
async function getAllHostsInTheCluster() {
  const subscriptionId = process.env["HDINSIGHT_SUBSCRIPTION_ID"] || "subid";
  const resourceGroupName = process.env["HDINSIGHT_RESOURCE_GROUP"] || "rg1";
  const clusterName = "cluster1";
  const credential = new DefaultAzureCredential();
  const client = new HDInsightManagementClient(credential, subscriptionId);
  const result = await client.virtualMachines.listHosts(resourceGroupName, clusterName);
  console.log(result);
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Azure;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager;
using Azure.ResourceManager.HDInsight;
using Azure.ResourceManager.HDInsight.Models;
using Azure.ResourceManager.Resources;

// Generated from example definition: specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2021-06-01/examples/GetClusterVirtualMachines.json
// this example is just showing the usage of "VirtualMachines_ListHosts" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://video2.skills-academy.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this HDInsightClusterResource created on azure
// for more information of creating HDInsightClusterResource, please refer to the document of HDInsightClusterResource
string subscriptionId = "subid";
string resourceGroupName = "rg1";
string clusterName = "cluster1";
ResourceIdentifier hdInsightClusterResourceId = HDInsightClusterResource.CreateResourceIdentifier(subscriptionId, resourceGroupName, clusterName);
HDInsightClusterResource hdInsightCluster = client.GetHDInsightClusterResource(hdInsightClusterResourceId);

// invoke the operation and iterate over the result
await foreach (HDInsightClusterHostInfo item in hdInsightCluster.GetVirtualMachineHostsAsync())
{
    Console.WriteLine($"Succeeded: {item}");
}

Console.WriteLine($"Succeeded");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:: 200

[
  {
    "name": "gateway1"
  },
  {
    "name": "gateway3"
  },
  {
    "name": "headnode0"
  },
  {
    "name": "headnode3"
  },
  {
    "name": "workernode0"
  },
  {
    "name": "workernode1"
  },
  {
    "name": "zookeepernode0"
  },
  {
    "name": "zookeepernode2"
  },
  {
    "name": "zookeepernode3"
  }
]

Definitions

Name	Description
ErrorResponse	Describes the format of Error response.
HostInfo	The cluster host information.

ErrorResponse

Describes the format of Error response.

Name	Type	Description
code	string	Error code
message	string	Error message indicating why the operation failed.

HostInfo

The cluster host information.

Name	Type	Description
effectiveDiskEncryptionKeyUrl	string	The effective disk encryption key URL used by the host
fqdn	string	The Fully Qualified Domain Name of host
name	string	The host name