先决条件
构建 IdentityServer 服务
添加 Config.cs 文件,并添加内容如下:
using System.Collections.Generic;
using IdentityServer4.Models;
using IdentityServer4.Test;
namespace IdentityServer
{
public sealed class Config
{
public static IEnumerable GetApiResources()
{
return new List
{
new ApiResource("ServiceA", "ServiceA API"),
new ApiResource("ServiceB", "ServiceB API")
};
}
public static IEnumerable GetClients()
{
return new List
{
new Client
{
ClientId = "ServiceAClient",
AllowedGrantTypes = GrantTypes.ResourceOwnerPassword,
ClientSecrets =
{
new Secret("ServiceAClient".Sha256())
},
AllowedScopes = new List {"ServiceA"},
AccessTokenLifetime = 60 * 60 * 1
},
new Client
{
ClientId = "ServiceBClient",
AllowedGrantTypes = GrantTypes.ResourceOwnerPassword,
ClientSecrets =
{
new Secret("ServiceBClient".Sha256())
},
AllowedScopes = new List {"ServiceB"},
AccessTokenLifetime = 60 * 60 * 1
}
};
}
public static List GetUsers()
{
return new List
{
new TestUser
{
Username = "test",
Password = "123456",
SubjectId = "1"
}
};
}
public static IEnumerable GetIdentityResources()
{
return new List();
}
}
}
注意:这里添加了两个 Client ,分别为 ServiceA、ServiceB ,因此接下来将构建这两个服务。
删掉StartUp.cs文件,在Program.cs中添加内容如下:
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
namespace IdentityServer
{
public class Program
{
public static void Main(string[] args)
{
CreateWebHostBuilder(args).Build().Run();
}
public static IWebHostBuilder CreateWebHostBuilder(string[] args)
{
return WebHost.CreateDefaultBuilder(args).ConfigureServices(services =>
{
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
services.AddIdentityServer()
.AddDeveloperSigningCredential()
.AddInMemoryIdentityResources(Config.GetIdentityResources())
.AddInMemoryApiResources(Config.GetApiResources())
.AddInMemoryClients(Config.GetClients())
.AddTestUsers(Config.GetUsers());
}).Configure(app =>
{
app.UseIdentityServer();
});
}
}
}
注意:AddDeveloperSigningCredential() 方法用于添加开发时使用的 Key material ,生产环境中不要使用该方法。在 .NET Core 2.2 中新建的 Web 项目文件 csproj 中包含了如下内容:csharp
这里更改csharp
为或直接删除该行,这么做的原因是当值为 InProcess 时,读写 tempkey.rsa 将产生权限问题。关于 AspNetCoreHostingModel 可参考 ASP.NET Core Module 。csharp
在浏览器中输入 http://localhost:38033/.well-known/openid-configuration ,得到以下内容
至此,一个包含两个服务认证的认证服务搭建完毕。
构建 ServiceA、ServiceB
在程序包管理控制台中运行
Install-Package IdentityModel
在 StartUp.cs 中添加内容如下:
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
namespace ServiceA
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
services.AddAuthentication("Bearer")
.AddJwtBearer("Bearer", options =>
{
options.Authority = "http://127.0.0.1:8021";
options.RequireHttpsMetadata = false;
options.Audience = "ServiceA";
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseAuthentication();
app.UseMvc();
}
}
}
添加 SessionController 用于用户登录,内容如下:
using System.ComponentModel.DataAnnotations;
using System.Net.Http;
using System.Threading.Tasks;
using IdentityModel.Client;
using Microsoft.AspNetCore.Mvc;
namespace ServiceA.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class SessionController : ControllerBase
{
public async Task Login(UserRequestModel userRequestModel)
{
// discover endpoints from metadata
var client = new HttpClient();
DiscoveryResponse disco = await client.GetDiscoveryDocumentAsync("http://127.0.0.1:8021");
if (disco.IsError)
{
return "认证服务器未启动";
}
TokenResponse tokenResponse = await client.RequestPasswordTokenAsync(new PasswordTokenRequest
{
Address = disco.TokenEndpoint,
ClientId = "ServiceAClient",
ClientSecret = "ServiceAClient",
UserName = userRequestModel.Name,
Password = userRequestModel.Password
});
return tokenResponse.IsError ? tokenResponse.Error : tokenResponse.AccessToken;
}
}
public class UserRequestModel
{
[Required(ErrorMessage = "用户名称不可以为空")]
public string Name { get; set; }
[Required(ErrorMessage = "用户密码不可以为空")]
public string Password { get; set; }
}
}
添加 HealthController 用于 Consul 进行服务健康检查,内容如下:
using Microsoft.AspNetCore.Mvc;
namespace ServiceA.Controllers
{
[Route("api/[controller]"), ApiController]
public class HealthController : ControllerBase
{
///
/// 健康检查
///
///
[HttpGet]
public IActionResult Get()
{
return Ok();
}
}
}
更改 ValuesController.cs 内容如下:
using System.Collections.Generic;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
namespace ServiceA.Controllers
{
[Authorize] //添加 Authorize Attribute 以使该控制器启用认证
[Route("api/[controller]")]
[ApiController]
public class ValuesController : ControllerBase
{
// GET api/values
[HttpGet]
public ActionResult> Get()
{
return new[] { "value1", "value2" };
}
}
}
注意,以上基本完成了 ServiceA 的服务构建,但在实际应用中应做一些修改,例如:IdentityServer 地址应在 appsettings.json 中进行配置,不应把地址分散于项目中各处;认证服务启用最好在全局启用,以防止漏写等等。ServiceB 的内容与 ServiceA 大致相似,因此文章中将不再展示 ServiceB 的构建过程。
Gateway 构建
csharp install-package Ocelot //添加 Ocelot
csharp install-package Ocelot.Provider.Consul // 添加 Consul 服务发现
添加 ocelot.json 文件,内容如下
{
"ReRoutes": [
{
"DownstreamPathTemplate": "/api/{everything}",
"DownstreamScheme": "http",
"UpstreamPathTemplate": "/ServiceA/{everything}",
"UpstreamHttpMethod": [ "GET", "POST", "DELETE", "PUT" ],
"ServiceName": "ServiceA", //consul 服务中 ServiceA 的名称
"LoadBalancerOptions": {
"Type": "LeastConnection"
}
},
{
"DownstreamPathTemplate": "/api/{everything}",
"DownstreamScheme": "http",
"UpstreamPathTemplate": "/ServiceB/{everything}",
"UpstreamHttpMethod": [ "GET", "POST", "DELETE", "PUT" ],
"ServiceName": "ServiceB", //consul 服务中 ServiceB 的名称
"LoadBalancerOptions": {
"Type": "LeastConnection"
}
}
],
"GlobalConfiguration": {
"ServiceDiscoveryProvider": { // Consul 服务发现配置
"Host": "localhost", // Consul 地址
"Port": 8500,
"Type": "Consul"
}
}
}
删除 StartUp.cs 文件,在 Program.cs 文件中添加如下内容
using System.IO;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Ocelot.Provider.Consul;
namespace ApiGateway
{
public class Program
{
public static void Main(string[] args)
{
new WebHostBuilder()
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.ConfigureAppConfiguration((hostingContext, config) =>
{
config
.SetBasePath(hostingContext.HostingEnvironment.ContentRootPath)
.AddJsonFile("appsettings.json", true, true)
.AddJsonFile($"appsettings.{hostingContext.HostingEnvironment.EnvironmentName}.json", true, true)
.AddJsonFile("ocelot.json")
.AddEnvironmentVariables();
})
.ConfigureServices(services =>
{
services.AddOcelot().AddConsul();
})
.ConfigureLogging((hostingContext, logging) =>
{
//add your logging
})
.UseIISIntegration()
.Configure(app =>
{
app.UseOcelot().Wait();
})
.Build()
.Run();
}
}
}
注意:打开 Gateway.csproj 文件,更改
netcoreapp2.2
InProcess
为
netcoreapp2.2
OutOfProcess
至此,一个基础网关基本构建完成。
构建 Consul 服务
使用 Chocoletey 安装 Consul,
choco install consul
在 consul.d 文件夹中添加配置文件,内容如下:
{
"services": [{
"ID": "ServiceA",
"Name": "ServiceA",
"Tags": [
"ServiceAWebApi", "Api"
],
"Address": "127.0.0.1",
"Port": 8010,
"Check": {
"HTTP": "http://127.0.0.1:8010/Api/health",
"Interval": "10s"
}
}, {
"id": "ServiceB",
"name": "ServiceB",
"tags": [
"ServiceBWebApi","Api"
],
"Address": "127.0.0.1",
"Port": 8011,
"Check": [{
"HTTP": "http://127.0.0.1:8011/Api/health",
"Interval": "10s"
}
]
}
]
}
启动 consul 服务
consul agent -dev -config-dir=./consul.d
Postman 验证
总结
至此,一个由 .NET Core、IdentityServer4、Ocelot、Consul实现的基础架构搭建完毕。源码地址
转自:https://www.cnblogs.com/Zhang-Xiang/p/10437488.html