Create AzureCredntials for Azure SDK for .NET

AzureCredntials.cs

using Microsoft.Azure.Management.PostgreSQL.FlexibleServers;
using Microsoft.Azure.Management.ResourceManager.Fluent;
using Microsoft.Azure.Management.ResourceManager.Fluent.Authentication;
using System.Threading.Tasks;

// SdkContext から生成する場合
// var cred = SdkContext.AzureCredentialsFactory.FromMSI(new MSILoginInformation(MSIResourceType.AppService), AzureEnvironment.AzureGlobalCloud);
// var cred = SdkContext.AzureCredentialsFactory.FromServicePrincipal("<clientId>", "<clientSecret>", "<tenantId>", AzureEnvironment.AzureGlobalCloud);

// new AzureCredentials でインスタンスを渡して生成する場合
var cred = new AzureCredentials(new ServicePrincipalLoginInformation
{
    ClientId = "<clientid>",
    ClientSecret = "<clientSecret>",
}, "<tenantid>", AzureEnvironment.AzureGlobalCloud);