Create a basic Hadoop cluster in HDInsight

CreateCluster.cs

using System;
using System.Security.Cryptography.X509Certificates;
using Microsoft.WindowsAzure.Management.HDInsight;

namespace Hdinsight
{
	public static class Helpers
	{
		private static readonly Guid SubscriptionId = new Guid("<subscription id>");
		private const string CertThumbprint = "<certificate thumbprint>";
		private const string ClusterName = "<cluster name>";
		private const string ClusterLocation = "<cluster location>"; // should be the same as the storage account below
		private const string StorageAccountName = "<storage account name>.blob.core.windows.net";
		private const string StorageAccountKey = "<storage account key>";
		private const string StorageContainer = "<container name>";
		private const string AdminUserName = "<cluster admin name>";
		private const string AdminPassword = "<cluster admin password>";
		private const int NodeCount = <node count>;

		public static void CreateCluster()
		{
			var cert = GetCertificateFromStore(CertThumbprint, StoreLocation.CurrentUser);
			var creds = new HDInsightCertificateCredential(SubscriptionId, cert);
			var client = HDInsightClient.Connect(creds);

			var clusterInfo = new ClusterCreateParametersV2
			{
				Name = ClusterName,
				Location = ClusterLocation,
				DefaultStorageAccountName = StorageAccountName,
				DefaultStorageAccountKey = StorageAccountKey,
				DefaultStorageContainer = StorageContainer,
				UserName = AdminUserName,
				Password = AdminPassword,
				ClusterSizeInNodes = NodeCount,
				Version = "3.1" // default
			};

			client.CreateCluster(clusterInfo);
		}

		private static X509Certificate2 GetCertificateFromStore(string thumbprint, StoreLocation storeLocation)
		{
			var store = new X509Store(StoreName.My, storeLocation);
			try
			{
				store.Open(OpenFlags.ReadOnly);
				var certCollection = store.Certificates;
				var currentCerts = certCollection.Find(X509FindType.FindByTimeValid, DateTime.Now, false);
				var signingCert = currentCerts.Find(X509FindType.FindByThumbprint, thumbprint, false);
				return signingCert.Count != 0 ? signingCert[0] : null;
			}
			finally
			{
				store.Close();
			}
		}
	}
}