Consul的服务注册与发现

1.下载

https://www.consul.io/downloads.html

2.解压并在Path中增加目录的环境变量

3.在目录下输入consul agent -dev 启动

4.启动成功后在 浏览器中输入http://localhost:8500/ui/dc1/services 

 

 有以上界面表示 启动成功

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在项目中添加包Consul

添加Consul帮助类

    public static class ConsulHelp
    {
        public static void ConsulRegist (this IConfiguration configuration)
        {
            string ip = configuration["ip"];
            int port = int.Parse(configuration["port"]);
            using (ConsulClient client = new ConsulClient(operation =>
             {
                 operation.Address = new Uri("http://localhost:8500/");
                 operation.Datacenter = "dcl";
             }))
            {
                //添加ConsulClient
                var age = new AgentServiceRegistration()
                {
                    ID = "service" + Guid.NewGuid(), //唯一名
                    Name = "WuJinHuaService",//组名
                    Address = ip,
                    Port = port,
                    Check = new AgentServiceCheck() //配置心跳检查
                    {
                        Interval = TimeSpan.FromSeconds(20),
                        HTTP = $"http://{ip}:{port}/api/v1/ConsulCheck/CheckConsul",
                        Timeout = TimeSpan.FromSeconds(5),
                        DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(90),//服务检测失败的时 多久注销服务
                    }
                };
                client.Agent.ServiceRegister(age).Wait();
                Console.WriteLine(age.Check.HTTP);
            }
            Console.WriteLine($"{ip}:{port}注册成功");
        }
    }

在Configure 中注册 this.Configuration.ConsulRegist();

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结合ocelot

新增一个WebApi工程 引入以下包

 

 增加ocelot.json 配置文件

{
 "Routes": [
    {
      "DownstreamPathTemplate": "/api/v1/{url}", //下游
      "DownstreamScheme": "http",
      "UpstreamPathTemplate": "/WuJinHua/{url}", //上游
      "UpstreamHttpMethod": [ "Get", "Post" ],
      "ServiceName": "WuJinHuaService", //Consul服务名
      "LoadBalancerOptions": {
        "Type": "RoundRobin"
      }
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "http://localhost:6299",
    "ServiceDiscoveryProvider": {
      "Scheme": "http",
      "Host": "localhost",
      "Port": 8500,
      "Type": "Consul"
    }
  }
}

ConfigureServices 中增加            services.AddOcelot().AddConsul();

Configure中增加 app.UseOcelot().Wait();