ASP.NET Core：IConfigurationBuilder 不包含 AddAzureKeyVault 的定义

Question

我正在将我的 ASP.NET Core Web 应用程序升级到 .NET Core 2.1，但出现以下错误：

IConfigurationBuilder 不包含 AddAzureKeyVault 的定义

此代码适用于 .NET Core 2.0。 .NET Core 2.1 中似乎缺少一个库。

using System;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Azure.KeyVault;
using Microsoft.Azure.Services.AppAuthentication;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.AzureKeyVault;

namespace MyNamesace
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateWebHostBuilder(args).Build().Run();
        }

        public static IWebHostBuilder CreateWebHostBuilder(string[] args)
        {
            return WebHost.CreateDefaultBuilder(args)
                    .ConfigureAppConfiguration((ctx, builder) =>
                    {
                        var keyVaultEndpoint = GetKeyVaultEndpoint();
                        if (!string.IsNullOrEmpty(keyVaultEndpoint))
                        {
                            var azureServiceTokenProvider = new AzureServiceTokenProvider();
                            var keyVaultClient = new KeyVaultClient(new KeyVaultClient.AuthenticationCallback(azureServiceTokenProvider.KeyVaultTokenCallback));

                            builder.AddAzureKeyVault(keyVaultEndpoint, keyVaultClient, new DefaultKeyVaultSecretManager());
                        }
                    })
                    .UseStartup<Startup>();
        }

        static string GetKeyVaultEndpoint() => Environment.GetEnvironmentVariable("KeyVaultEndpoint");
    }
}

Answer 1

回答

安装Microsoft.Extensions.Configuration.AzureKeyVault NuGet 包。

无需更改代码。

更新： Microsoft.Extensions.Configuration.AzureKeyVault NuGet 包已被弃用。 新的 NuGet 包是Azure.Extensions.AspNetCore.Configuration.Secrets 。

解释

ASP.NET Core 2.0 模板使用Microsoft.AspNetCore.All NuGet 包，其中包括 IConfiguration 的 Azure Key Vault 扩展，但 ASP.NET Core 2.1 模板使用Microsoft.AspNetCore.App不包括扩展库。

代码

using System;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Azure.KeyVault;
using Microsoft.Azure.Services.AppAuthentication;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.AzureKeyVault;

namespace MyNamespace
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateWebHostBuilder(args).Build().Run();
        }

        public static IWebHostBuilder CreateWebHostBuilder(string[] args)
        {
            return WebHost.CreateDefaultBuilder(args)
                    .ConfigureAppConfiguration((ctx, builder) =>
                    {
                        var keyVaultEndpoint = GetKeyVaultEndpoint();
                        if (!string.IsNullOrEmpty(keyVaultEndpoint))
                        {
                            var azureServiceTokenProvider = new AzureServiceTokenProvider();
                            var keyVaultClient = new KeyVaultClient(new KeyVaultClient.AuthenticationCallback(azureServiceTokenProvider.KeyVaultTokenCallback));

                            builder.AddAzureKeyVault(keyVaultEndpoint, keyVaultClient, new DefaultKeyVaultSecretManager());
                        }
                    })
                    .UseStartup<Startup>();
        }

        static string GetKeyVaultEndpoint() => Environment.GetEnvironmentVariable("KeyVaultEndpoint");
    }
}