/// <summary>
/// Fabio是一个快速、现代、zero-conf负载均衡HTTP(S)路由器,用于部署Consul管理的微服务
/// 添加urlprefix-/servicename格式的tag标签，可以方便Fabio识别
/// </summary>
/// <param name="serviceinfo">The serviceinfo.</param>
/// <param name="address">The address.</param>
/// <param name="httpScheme">The HTTP scheme.</param>
/// <returns></returns>
private static AgentServiceRegistration BuildServiceRegistration(ServiceRegisterInfo serviceinfo, string address, string httpScheme)
{
serviceinfo.HealthCheck.HTTP = $"{httpScheme}{address}:{serviceinfo.ServicePort}/{serviceinfo.HealthCheck.HTTP}";
return(new AgentServiceRegistration
{
Checks = new[] { serviceinfo.HealthCheck },
ID = Guid.NewGuid().ToString(),
Name = serviceinfo.ServiceName,
Address = $"{httpScheme}{address}",
Port = serviceinfo.ServicePort,
Tags = new[] { $"urlprefix-/{serviceinfo.ServiceName}" }
});
}
private static string GetAddress(ServiceRegisterInfo serviceInfo)
{
Expression <Func <IPAddress, bool> > expression;
if (serviceInfo.IsIPV6)
{
expression = p => p.AddressFamily == AddressFamily.InterNetworkV6;
}
else
{
expression = p => p.AddressFamily == AddressFamily.InterNetwork;
}
return(Dns.GetHostEntry(Dns.GetHostName()).AddressList.AsQueryable().FirstOrDefault(expression).ToString());
}
internal static void Register(IApplicationLifetime lifetime)
{
ServiceRegisterInfo serviceInfo = AppConfigUtility.Get <ServiceRegisterInfo>("ServiceRegisterEntity");
using (var consulClient = new ConsulClient(x => x.Address = new Uri(serviceInfo.ConsulServer)))
{
string address = GetAddress(serviceInfo);
string httpScheme = serviceInfo.IsHttps ? "https://" : "http://";
AgentServiceRegistration registration = BuildServiceRegistration(serviceInfo, "localhost", httpScheme);
consulClient.Agent.ServiceRegister(registration).Wait();
lifetime.ApplicationStopping.Register(() =>
{
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
});
var result = consulClient.Agent.Services().ConfigureAwait(false).GetAwaiter().GetResult();
}
}
public ServiceDiscovery(IOptions <ServiceRegisterInfo> options)
{
this.serviceInfo = options.Value;
}