public List <string> ServiceDiscovery(string serviceName, bool isGreyTestServer = false, int greyTestFlag = 0)
{
try
{
ServiceEntity serviceEntity = new ServiceEntity();
serviceEntity.ServiceName = serviceName;
List <CatalogService> resultService = new List <CatalogService>();
var services = _consulClient.Catalog.Service(serviceEntity.ServiceName).Result.Response.ToList();
if (services == null || (!services.Any()))
{
LogService.Default.Fatal("consul:找不到服务实例");
return(null);
}
//灰度测试中
if (greyTestFlag == 1)
{
if (isGreyTestServer)
{
resultService = services.Where(x => x.ServiceTags.Contains(SysConstants.GreyTestTagStr)).ToList();
}
else
{
resultService = services.Where(x => !x.ServiceTags.Contains(SysConstants.GreyTestTagStr)).ToList();
}
}
else
{
resultService = services;
}
if (resultService == null || (!resultService.Any()))
{
LogService.Default.Fatal($"consul:找不到指定服务实例|{greyTestFlag}");
return(null);
}
return(resultService.Select(o => $"{ o.ServiceAddress}:{o.ServicePort}").ToList());
//return $"{service.Address}:{service.Port}";
}
catch (Exception ex)
{
if (ex.InnerException != null)
{
LogService.Default.Fatal("服务发现失败(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.InnerException.Message);
}
else
{
LogService.Default.Fatal("服务发现失败;(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.Message);
}
return(null);
}
}
/// <summary>
/// 注册服务
/// </summary>
/// <param name="serviceEntity"></param>
public void RegisterConsul(ServiceEntity serviceEntity)
{
//注册本地Client节点
try
{
var httpcheck = new AgentServiceCheck() //配置健康检查
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5), //服务启动多久后注册
Interval = TimeSpan.FromSeconds(10), //健康检查时间间隔，或者称为心跳间隔
HTTP = $"http://{serviceEntity.IP}:{serviceEntity.Port}/{serviceEntity.CheckUrl}", //健康检查地址
Timeout = TimeSpan.FromSeconds(20),
};
var registration = new AgentServiceRegistration()//配置服务注册参数
{
Checks = new[] { httpcheck },
ID = serviceEntity.ServiceID(),
Name = serviceEntity.ServiceName,
Address = serviceEntity.IP,
Port = serviceEntity.Port,
Tags = serviceEntity.Tags
//new[] { $"urlprefix-/{serviceEntity.ServiceName}" }//添加 urlprefix-/servicename 格式的 tag 标签，以便 Fabio 识别
};
//定义重试机制 5次重试 延时加载
var policy = Polly.Policy.HandleResult <List <CatalogService> >(r =>
{
return(r.Find(x => x.ServiceID == registration.ID && x.ServiceName == registration.Name) == null);
}).WaitAndRetry(5, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)));
List <CatalogService> findService = policy.Execute(() =>
{
_consulClient.Agent.ServiceRegister(registration).Wait();//服务注册
var services = _consulClient.Catalog.Service(registration.Name).Result.Response.ToList();
return(services);
});
}
catch (Exception ex)
{
if (ex.InnerException != null)
{
LogService.Default.Fatal("服务注册失败:(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.InnerException.Message);
}
else
{
LogService.Default.Fatal("服务注册失败:(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.Message);
}
}
}
/// <summary>
/// 取消服务注册
/// </summary>
/// <param name="serviceEntity"></param>
public void DisposeRegister(ServiceEntity serviceEntity)
{
try
{
_consulClient.Agent.ServiceDeregister(serviceEntity.ServiceID()).Wait();
}
catch (Exception ex)
{
if (ex.InnerException != null)
{
LogService.Default.Fatal("取消服务注册失败(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.InnerException.Message);
}
else
{
LogService.Default.Fatal("取消服务注册失败;(当前配置的服务写地址" + $"{_consulOption.Host}" + "):" + ex.Message);
}
}
}