public void Agent_Checks_ServiceBound()
{
var c = ClientTest.MakeClient();
var serviceReg = new AgentServiceRegistration()
{
Name = "redis"
};
c.Agent.ServiceRegister(serviceReg);
var reg = new AgentCheckRegistration()
{
Name = "redischeck",
ServiceID = "redis",
TTL = TimeSpan.FromSeconds(15)
};
c.Agent.CheckRegister(reg);
var checks = c.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("redischeck"));
Assert.AreEqual(checks.Response["redischeck"].ServiceID, "redis");
c.Agent.CheckDeregister("redischeck");
c.Agent.ServiceDeregister("redis");
}
public async Task Agent_Services()
{
var client = new ConsulClient();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] { "bar", "baz" },
Port = 8000,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
await client.Agent.ServiceRegister(registration);
var services = await client.Agent.Services();
Assert.True(services.Response.ContainsKey("foo"));
var checks = await client.Agent.Checks();
Assert.True(checks.Response.ContainsKey("service:foo"));
Assert.Equal(CheckStatus.Critical, checks.Response["service:foo"].Status);
await client.Agent.ServiceDeregister("foo");
}
public async Task Health_Checks()
{
var client = new ConsulClient();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] { "bar", "baz" },
Port = 8000,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
try
{
await client.Agent.ServiceRegister(registration);
var checks = await client.Health.Checks("foo");
Assert.NotEqual((ulong)0, checks.LastIndex);
Assert.NotEqual(0, checks.Response.Length);
}
finally
{
await client.Agent.ServiceDeregister("foo");
}
}
public void Health_Checks()
{
var c = ClientTest.MakeClient();
var reg = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] {"bar", "baz"},
Port = 8000,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
try
{
c.Agent.ServiceRegister(reg);
var checks = c.Health.Checks("foo");
Assert.AreNotEqual(0, checks.LastIndex);
Assert.AreNotEqual(0, checks.Response.Length);
}
finally
{
c.Agent.ServiceDeregister("foo");
}
}
public AgentServiceRegistration CreateService()
{
AgentServiceRegistration serviceRegistration = new AgentServiceRegistration
{
Name = _appname
//Port = _apport,
//Address = _appadress
//Check = CheckTtl()
};
return serviceRegistration;
}
public Task Publish(string type, string data)
{
var client = GetConsulClient();
var registration = new AgentServiceRegistration()
{
ID = $"{owner}:{type}",
Name = ServiceName,
Tags = new[] { data}
};
client.Agent.ServiceRegister(registration);
return Task.FromResult(0);
}
/// <summary>
/// Registers the specified client.
/// </summary>
/// <param name="client">The client.</param>
public void Register(Client client)
{
var gatewayConfiguration = HttpGatewayConfiguration.GetConfiguration();
foreach (OrderAPIServerElement serverDefinition in gatewayConfiguration.OrderServiceConfiguration.Servers)
{
var registration = new AgentServiceRegistration()
{
ID =serverDefinition.Id,
Name = serverDefinition.Name,
Address = serverDefinition.Address,
Port = serverDefinition.Port,
Tags = new []{"Orders"}
};
//clear any old registration - we don't respond to services running/not running in this version
client.Agent.ServiceDeregister(registration.ID);
client.Agent.ServiceRegister(registration);
}
}
public AgentServiceRegistrationHostedService(IConsulClient consulClient, AgentServiceRegistration serviceRegistration, ILogger <AgentServiceRegistrationHostedService> logger)
{
_consulClient = consulClient;
_serviceRegistration = serviceRegistration;
_logger = logger;
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
// 获取主机生命周期管理接口
var lifetime = app.ApplicationServices.GetRequiredService <IHostApplicationLifetime>();
// 获取服务配置项
var serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ConsulServiceOptions> >().Value;
var config = app.ApplicationServices.GetRequiredService <IConfiguration>();
// 服务ID必须保证唯一
serviceOptions.ServiceId = Guid.NewGuid().ToString();
var consulClient = new ConsulClient(configuration =>
{
//服务注册的地址，集群中任意一个地址
configuration.Address = new Uri(serviceOptions.ConsulAddress);
});
// 使用参数配置服务注册地址
var address = config["address"];
if (string.IsNullOrEmpty(address))
{
// 获取当前服务地址和端口
var features = app.Properties["server.Features"] as FeatureCollection;
address = features?.Get <IServerAddressesFeature>().Addresses.First();
}
var uri = new Uri(address);
// 节点服务注册对象
var registration = new AgentServiceRegistration()
{
ID = serviceOptions.ServiceId,
Name = serviceOptions.ServiceName,// 服务名
Address = uri.Host,
Port = uri.Port, // 服务端口
Check = new AgentServiceCheck
{
// 注册超时
Timeout = TimeSpan.FromSeconds(5),
// 服务停止多久后注销服务
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
// 健康检查地址
HTTP = $"{uri.Scheme}://{uri.Host}:{uri.Port}{serviceOptions.HealthCheck}",
// 健康检查时间间隔
Interval = TimeSpan.FromSeconds(10),
}
};
// 注册服务
consulClient.Agent.ServiceRegister(registration).Wait();
// 应用程序终止时，注销服务
lifetime.ApplicationStopping.Register(() =>
{
consulClient.Agent.ServiceDeregister(serviceOptions.ServiceId).Wait();
});
return(app);
}
public async Task Agent_SetTTLStatus()
{
var client = new ConsulClient();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
await client.Agent.ServiceRegister(registration);
await client.Agent.WarnTTL("service:foo", "warning");
var checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Warning, checks.Response["service:foo"].Status);
Assert.Equal("warning", checks.Response["service:foo"].Output);
await client.Agent.PassTTL("service:foo", "passing");
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Passing, checks.Response["service:foo"].Status);
Assert.Equal("passing", checks.Response["service:foo"].Output);
await client.Agent.FailTTL("service:foo", "failing");
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Critical, checks.Response["service:foo"].Status);
Assert.Equal("failing", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo", TTLStatus.Pass);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Passing, checks.Response["service:foo"].Status);
Assert.Equal("foo", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo warning", TTLStatus.Warn);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Warning, checks.Response["service:foo"].Status);
Assert.Equal("foo warning", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo failing", TTLStatus.Critical);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Critical, checks.Response["service:foo"].Status);
Assert.Equal("foo failing", checks.Response["service:foo"].Output);
await client.Agent.ServiceDeregister("foo");
}
public void Agent_SetTTLStatus()
{
var c = ClientTest.MakeClient();
var reg = new AgentServiceRegistration()
{
Name = "foo",
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
c.Agent.ServiceRegister(reg);
c.Agent.WarnTTL("service:foo", "test");
var checks = c.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("service:foo"));
Assert.AreEqual(checks.Response["service:foo"].Status, CheckStatus.Warning);
c.Agent.ServiceDeregister("foo");
}
public void Agent_Services_CheckPassing()
{
var c = ClientTest.MakeClient();
var reg = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] { "bar", "baz" },
Port = 8000,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15),
Status = CheckStatus.Passing
}
};
c.Agent.ServiceRegister(reg);
var services = c.Agent.Services();
Assert.IsTrue(services.Response.ContainsKey("foo"));
var checks = c.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("service:foo"));
Assert.AreEqual(checks.Response["service:foo"].Status, CheckStatus.Passing);
c.Agent.ServiceDeregister("foo");
}
private void RegisterService()
{
var client = new Client();
var configuration = OrderServerConfiguration.GetConfiguration();
var registration = new AgentServiceRegistration()
{
ID = configuration.Server.Id,
Name = configuration.Server.Name,
Address = configuration.Server.Address,
Port = configuration.Server.Port,
Tags = new[] { "Orders" }
};
//clear any old registration - we don't respond to services running/not running in this version
client.Agent.ServiceDeregister(registration.ID);
client.Agent.ServiceRegister(registration);
}
/// <summary>
/// 使用consul
/// 默认的健康检查接口格式是 http://host:port/HealthCheck
/// </summary>
/// <param name="app"></param>
/// <returns></returns>
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
IConsulClient consul = app.ApplicationServices.GetRequiredService <IConsulClient>();
IApplicationLifetime appLife = app.ApplicationServices.GetRequiredService <IApplicationLifetime>();
IOptions <ServiceRegisterOptions> serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ServiceRegisterOptions> >();
//TODO: 这两句代码，必须使用Microsoft.NETCore.App 2.1 的程序集
//var features = app.Properties["server.Features"] as FeatureCollection;
//var port = new Uri(features.Get<IServerAddressesFeature>().Addresses.FirstOrDefault()).Port; //获取端口
var port = serviceOptions.Value.ServicePort; //获取配置文件的端口
var address = serviceOptions.Value.ServiceIpAddress; //获取配置文件的IP地址
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine($"application port is :{port}");
var addressIpv4Hosts = NetworkInterface.GetAllNetworkInterfaces()
.OrderByDescending(c => c.Speed)
.Where(c => c.NetworkInterfaceType != NetworkInterfaceType.Loopback && c.OperationalStatus == OperationalStatus.Up);
foreach (var item in addressIpv4Hosts)
{
if (string.IsNullOrEmpty(address))
{
//这是ipv4的ip地址
var firstIpV4Address = item.GetIPProperties().UnicastAddresses.Where(c => c.Address.AddressFamily == AddressFamily.InterNetwork).Select(c => c.Address).FirstOrDefault()?.ToString();
if (string.IsNullOrEmpty(firstIpV4Address))
{
continue;
}
if (firstIpV4Address.Contains("localhost"))
{
continue;
}
address = firstIpV4Address;
}
var serviceId = $"{serviceOptions.Value.ServiceName}_{address}:{port}";
var httpCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1),
Interval = TimeSpan.FromSeconds(10), //健康检查间隔10s，原来是30s
HTTP = $"{Uri.UriSchemeHttp}://{address}:{port}/HealthCheck" //这个是默认健康检查接口
};
var registration = new AgentServiceRegistration()
{
Checks = new[] { httpCheck },
Address = address,
ID = serviceId,
Name = serviceOptions.Value.ServiceName,
Port = port
};
bool retry = true;
while (retry)
{
try
{
consul.Agent.ServiceRegister(registration).GetAwaiter().GetResult();
retry = false;
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
Thread.Sleep(1000 * 5);
}
}
//当服务停止后想consul发送的请求
appLife.ApplicationStopping.Register(() =>
{
consul.Agent.ServiceDeregister(serviceId).GetAwaiter().GetResult();
});
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine($"health check service:{httpCheck.HTTP}");
}
return(app);
}
public async Task Agent_ServiceMaintenance()
{
var client = new ConsulClient();
var serviceReg = new AgentServiceRegistration()
{
Name = "redis"
};
await client.Agent.ServiceRegister(serviceReg);
await client.Agent.EnableServiceMaintenance("redis", "broken");
var checks = await client.Agent.Checks();
var found = false;
foreach (var check in checks.Response)
{
if (check.Value.CheckID.Contains("maintenance"))
{
found = true;
Assert.Equal(CheckStatus.Critical, check.Value.Status);
Assert.Equal("broken", check.Value.Notes);
}
}
Assert.True(found);
await client.Agent.DisableServiceMaintenance("redis");
checks = await client.Agent.Checks();
foreach (var check in checks.Response)
{
Assert.False(check.Value.CheckID.Contains("maintenance"));
}
await client.Agent.ServiceDeregister("redis");
}
/// <summary>
/// use Consul
/// 使用consul
/// The default health check interface format is http://host:port/HealthCheck
/// 默认的健康检查接口格式是 http://host:port/HealthCheck
/// </summary>
/// <param name="app"></param>
/// <returns></returns>
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
IConsulClient consul = app.ApplicationServices.GetRequiredService <IConsulClient>();
IApplicationLifetime appLife = app.ApplicationServices.GetRequiredService <IApplicationLifetime>();
IOptions <ServiceDiscoveryOptions> serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ServiceDiscoveryOptions> >();
var features = app.Properties["server.Features"] as FeatureCollection;
var aa = features.Get <IServerAddressesFeature>();
//var port = new Uri(features.Get<IServerAddressesFeature>()
// .Addresses
// .FirstOrDefault()).Port;
var port = new Uri(Configuration.GetValue(typeof(string), "Host").ToString()).Port;
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine($"application port is :{port}");
var addressIpv4Hosts = NetworkInterface.GetAllNetworkInterfaces()
.OrderByDescending(c => c.Speed)
.Where(c => c.NetworkInterfaceType != NetworkInterfaceType.Loopback && c.OperationalStatus == OperationalStatus.Up);
foreach (var item in addressIpv4Hosts)
{
var props = item.GetIPProperties();
//this is ip for ipv4
//这是ipv4的ip地址
var firstIpV4Address = props.UnicastAddresses
.Where(c => c.Address.AddressFamily == AddressFamily.InterNetwork)
.Select(c => c.Address)
.FirstOrDefault().ToString();
var serviceId = $"{serviceOptions.Value.ServiceName}_{firstIpV4Address}:{port}";
var httpCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1),
Interval = TimeSpan.FromSeconds(10),
//this is default health check interface
//这个是默认健康检查接口
HTTP = $"{Uri.UriSchemeHttp}://{firstIpV4Address}:{port}/HealthCheck",
};
var registration = new AgentServiceRegistration()
{
Checks = new[] { httpCheck },
Address = firstIpV4Address.ToString(),
ID = serviceId,
Name = serviceOptions.Value.ServiceName,
Port = port,
Tags = new string[] { serviceOptions.Value.ServiceName }
};
consul.Agent.ServiceRegister(registration).GetAwaiter().GetResult();
//send consul request after service stop
//当服务停止后想consul发送的请求
appLife.ApplicationStopping.Register(() =>
{
consul.Agent.ServiceDeregister(serviceId).GetAwaiter().GetResult();
});
Console.ForegroundColor = ConsoleColor.Blue;
Console.WriteLine($"health check service:{httpCheck.HTTP}");
}
#region 注册本地地址
////register localhost address
////注册本地地址
//var localhostregistration = new AgentServiceRegistration()
//{
// Checks = new[] { new AgentServiceCheck()
// {
// DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1),
// Interval = TimeSpan.FromSeconds(15),
// HTTP = $"{Uri.UriSchemeHttp}://localhost:{port}/HealthCheck",
// } },
// Address = "localhost",
// ID = $"{serviceOptions.Value.ServiceName}_localhost:{port}",
// Name = serviceOptions.Value.ServiceName,
// Port = port
//};
//consul.Agent.ServiceRegister(localhostregistration).GetAwaiter().GetResult();
////send consul request after service stop
////当服务停止后想consul发送的请求
//appLife.ApplicationStopping.Register(() =>
//{
// consul.Agent.ServiceDeregister(localhostregistration.ID).GetAwaiter().GetResult();
//});
#endregion
app.Map("/HealthCheck", s =>
{
s.Run(async context =>
{
await context.Response.WriteAsync("ok");
});
});
return(app);
}
public ConsulServiceRegistrar(ILoggerFactory log, IConsulClient client, AgentServiceRegistration serviceRegistration)
{
_log = log.CreateLogger(nameof(ConsulServiceRegistrar));
_client = client;
_serviceRegistration = serviceRegistration;
}
protected override Func <CancellationToken, Task> CreateRegisterJob()
{
var id = GetId();
if (!_addressService.TryGetAddress(out Uri uri))
{
return(null);
}
var registration = new AgentServiceRegistration
{
ID = id,
Name = _appName,
Address = uri.Host,
Port = uri.Port,
Meta = new Dictionary <string, string> {
{ "scheme", uri.Scheme }
},
Check = new AgentServiceCheck
{
TCP = $"{uri.Host}:{uri.Port}",
Interval = new TimeSpan(0, 0, 10),
Timeout = new TimeSpan(0, 0, 3),
DeregisterCriticalServiceAfter = new TimeSpan(0, 0, 20),
}
};
AgentServiceRegistration registrationMetrics = null;
if (_withMetricsPort)
{
registrationMetrics = new AgentServiceRegistration
{
ID = $"{id}-metrics",
Name = _appName,
Address = uri.Host,
Port = uri.Port * 10,
Meta = new Dictionary <string, string> {
{ "scheme", uri.Scheme }
},
Tags = new[] { "metrics" },
Check = new AgentServiceCheck
{
TCP = $"{uri.Host}:{uri.Port}",
Interval = new TimeSpan(0, 0, 10),
Timeout = new TimeSpan(0, 0, 3),
DeregisterCriticalServiceAfter = new TimeSpan(0, 0, 20),
}
}
}
;
return(async cancellationToken =>
{
await _consul.Agent.ServiceRegister(registration, cancellationToken);
_logger.LogInformation(
$"Register service [{registration.Name}] at [{registration.Address}:{registration.Port}] as [{registration.ID}]");
if (registrationMetrics == null)
{
return;
}
await _consul.Agent.ServiceRegister(registrationMetrics, cancellationToken);
_logger.LogInformation(
$"Register service metrics [{registration.Name}] at [{registration.Address}:{registration.Port}] as [{registration.ID}]");
});
}
}
public static void Registor(AgentServiceRegistration agentService)
{
AgentServices.Add(agentService);
ConsulClientInstance.Agent.ServiceRegister(agentService);
}
public void Agent_Services_CheckTTLNote()
{
var client = new Client();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] { "bar", "baz" },
Port = 8000,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15),
Status = CheckStatus.Critical
}
};
client.Agent.ServiceRegister(registration);
var services = client.Agent.Services();
Assert.IsTrue(services.Response.ContainsKey("foo"));
var checks = client.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("service:foo"));
Assert.AreEqual(CheckStatus.Critical, checks.Response["service:foo"].Status);
client.Agent.PassTTL("service:foo", "ok");
checks = client.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("service:foo"));
Assert.AreEqual(CheckStatus.Passing, checks.Response["service:foo"].Status);
Assert.AreEqual("ok", checks.Response["service:foo"].Output);
client.Agent.ServiceDeregister("foo");
}
#pragma warning disable CS1998
private async ValueTask <AgentServiceRegistration> BuildRegisterationRequestAsync()
#pragma warning restore CS1998
{
if (registration != null)
{
return(registration);
}
var serviceId = _serviceHelper.GetRunningServiceId();
var serviceName = _serviceHelper.GetRunningServiceName();
var serviceTags = _serviceHelper.GetRunningServiceTags().ToArray();
var address = "http://localhost:5000";
IPAddress addr = null;
foreach (var addressString in _serverAddressesFeature.Addresses)
{
Logger.LogTrace($"Service discovery:Found address:{addressString}");
if (addr != null)
{
break;
}
address = addressString;
if (address == null)
{
continue;
}
if (address.StartsWith("http://+:") || address.StartsWith("https://+:"))
{
address = address.Replace("+", "[::]");
}
if (!Uri.TryCreate(address, UriKind.Absolute, out var uri))
{
continue;
}
if (IPAddress.TryParse(uri.DnsSafeHost, out addr))
{
if (IPAddress.Loopback.Equals(addr) || IPAddress.IPv6Loopback.Equals(addr))
{
addr = null;
continue;
}
if (IPAddress.Any.Equals(addr) || IPAddress.IPv6Any.Equals(addr))
{
addr = IPAddress.Loopback;
break;
}
}
else
{
addr = null;
}
}
Logger.LogTrace($"Service discovery:Current IP address is : {addr}");
Logger.LogTrace($"Service discovery:Nearest address:{address}");
if (addr == null)
{
Logger.LogCritical($"Service discovery:No usable IP address.(0)");
return(null);
}
if (!Uri.TryCreate(address, UriKind.Absolute, out var addressUri))
{
Logger.LogCritical($"Service discovery:Cannot build a usable URI.");
return(null);
}
var hostNameOrAddress = string.Empty;
if (IPAddress.Loopback.Equals(addr) || IPAddress.IPv6Loopback.Equals(addr))
{
//// lo(v6)
hostNameOrAddress = Dns.GetHostName();
}
else
{
hostNameOrAddress = addr.ToString();
}
Logger.LogTrace($"Service discovery:Current host name is : {hostNameOrAddress}");
Logger.LogTrace($"Service discovery:Current address uri is : {addressUri}");
var ipEntry = await Dns.GetHostEntryAsync(hostNameOrAddress);
Logger.LogTrace($"Service discovery:Found host name is : {ipEntry.HostName}");
var addressListString = ipEntry.AddressList.Aggregate(new StringBuilder(), (sb, s) => sb.Append(s).Append(","));
Logger.LogTrace($"Service discovery:Found all addresses are : {addressListString}");
bool isIpv6 = false;
var ipAddress = ipEntry.AddressList
.Where(ip => ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
.Where(ip => !IPAddress.Any.Equals(ip))
.Where(ip => !IPAddress.Loopback.Equals(ip))
.Where(ip => !IPAddress.None.Equals(ip))
.FirstOrDefault();
if (ipAddress == null)
{
isIpv6 = true;
ipAddress = ipEntry.AddressList
.Where(ip => ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
.Where(ip => !IPAddress.IPv6Any.Equals(ip))
.Where(ip => !IPAddress.IPv6Loopback.Equals(ip))
.Where(ip => !IPAddress.IPv6None.Equals(ip))
.FirstOrDefault();
}
if (ipAddress == null)
{
Logger.LogCritical($"Service discovery:No usable IP address.(1)");
return(null);
}
var host = ipAddress.ToString();
if (isIpv6)
{
host = $"[{host}]";
}
address = $"{addressUri.Scheme}://{host}:{addressUri.Port}";
Logger.LogTrace($"Service discovery:Try resolving address:{address}");
if (!Uri.TryCreate(address, UriKind.Absolute, out addressUri))
{
Logger.LogCritical($"Service discovery:No usable IP address.(2)");
return(null);
}
Logger.LogTrace($"Service discovery:The new address uri is :{addressUri}");
var checks = _healthCheckHelper.GetHeathCheckInfo()
.Select(info => new AgentServiceCheck
{
HTTP = address + info.Path,
Interval = TimeSpan.FromSeconds(info.Interval),
Status = HealthStatus.Passing
})
.ToArray();
var request = registration = new AgentServiceRegistration
{
ID = serviceId,
Name = serviceName,
Address = addressUri.DnsSafeHost,
Port = addressUri.Port,
Tags = serviceTags,
Checks = checks
};
return(request);
}
public static IApplicationBuilder RegisterWithConsul(
this IApplicationBuilder app,
IHostApplicationLifetime lifetime,
Action <ServiceRegistrationConfiguration, IServiceProvider> configurator = null
)
{
if (lifetime == null)
{
throw new ArgumentNullException(nameof(lifetime));
}
// Retrieve Consul client from DI
var consulClient = app.ApplicationServices.GetRequiredService <IConsulClient>();
// Setup logger
var loggingFactory = app.ApplicationServices
.GetRequiredService <ILoggerFactory>();
var logger = loggingFactory.CreateLogger <IApplicationBuilder>();
// Get server IP address
var addresses = app.ServerFeatures.Get <IServerAddressesFeature>();
var address = addresses.Addresses.First();
Console.WriteLine($"The api address is :{address}");
logger.LogWarning($"The api address is :{address}");
// Register service with consul
var uri = new Uri(address);
var serviceRegistration =
app.ApplicationServices.GetService <IOptions <ServiceRegistrationConfiguration> >().Value;
configurator?.Invoke(serviceRegistration, app.ApplicationServices);
var health = new AgentCheckRegistration
{
HTTP = $"{uri.Scheme}://{uri.Host}:{uri.Port}{serviceRegistration.HealthCheckEndpoint}",
Notes = $"Checks {serviceRegistration.HealthCheckEndpoint} on {uri.Host}",
Timeout = TimeSpan.FromSeconds(3),
Interval = TimeSpan.FromSeconds(30),
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1)
};
var registration = new AgentServiceRegistration
{
Checks = new AgentServiceCheck[] { health },
ID = $"{serviceRegistration.ServiceId}-{uri.Port}",
Name = serviceRegistration.ServiceName,
Address = uri.Host,
Port = uri.Port,
Tags = serviceRegistration.Tags ?? new[] { serviceRegistration.ServiceName }
};
logger.LogInformation("Registering with Consul");
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
consulClient.Agent.ServiceRegister(registration).Wait();
// handle De-registration of the service
// upon application shutdown, graceful shutdown not killing
lifetime.ApplicationStopping.Register(() =>
{
logger.LogInformation("De-registering from Consul");
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
});
return(app);
}
private static AgentServiceRegistration CreateConsulAgentRegistration(this IFixerBuilder builder,
ConsulOptions options)
{
var enabled = options.Enabled;
var consulEnabled = Environment.GetEnvironmentVariable("CONSUL_ENABLED")?.ToLowerInvariant();
if (!string.IsNullOrWhiteSpace(consulEnabled))
{
enabled = consulEnabled == "true" || consulEnabled == "1";
}
if (!enabled)
{
return(null);
}
if (string.IsNullOrWhiteSpace(options.Address))
{
throw new ArgumentException("Consul address can not be empty.",
nameof(options.PingEndpoint));
}
var uniqueId = string.Empty;
using (var serviceProvider = builder.Services.BuildServiceProvider())
{
uniqueId = serviceProvider.GetRequiredService <IServiceId>().Id;
}
var pingInterval = options.PingInterval <= 0 ? 5 : options.PingInterval;
var removeAfterInterval = options.RemoveAfterInterval <= 0 ? 10 : options.RemoveAfterInterval;
var registration = new AgentServiceRegistration
{
Name = options.Service,
ID = $"{options.Service}:{uniqueId}",
Address = options.Address,
Port = options.Port
};
if (!options.PingEnabled)
{
return(registration);
}
var scheme = options.Address.StartsWith("http", StringComparison.InvariantCultureIgnoreCase)
? string.Empty
: "http://";
var check = new AgentServiceCheck
{
Interval = TimeSpan.FromSeconds(pingInterval),
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(removeAfterInterval),
HTTP = $"{scheme}{options.Address}{(options.Port > 0 ? $":{options.Port}" : string.Empty)}/" +
$"{options.PingEndpoint}"
};
registration.Checks = new[] { check };
return(registration);
}
public void Agent_ServiceAddress()
{
var c = ClientTest.MakeClient();
var reg1 = new AgentServiceRegistration()
{
Name = "foo1",
Port = 8000,
Address = "192.168.0.42"
};
var reg2 = new AgentServiceRegistration()
{
Name = "foo2",
Port = 8000
};
c.Agent.ServiceRegister(reg1);
c.Agent.ServiceRegister(reg2);
var services = c.Agent.Services();
Assert.IsTrue(services.Response.ContainsKey("foo1"));
Assert.IsTrue(services.Response.ContainsKey("foo2"));
Assert.AreEqual(services.Response["foo1"].Address, "192.168.0.42");
Assert.IsTrue(string.IsNullOrEmpty(services.Response["foo2"].Address));
c.Agent.ServiceDeregister("foo1");
c.Agent.ServiceDeregister("foo2");
}
public async Task Agent_SetTTLStatus()
{
var client = new ConsulClient();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
await client.Agent.ServiceRegister(registration);
await client.Agent.WarnTTL("service:foo", "test");
var checks = await client.Agent.Checks();
Assert.True(checks.Response.ContainsKey("service:foo"));
Assert.Equal(CheckStatus.Warning, checks.Response["service:foo"].Status);
await client.Agent.ServiceDeregister("foo");
}
private bool RegisterService(string name)
{
MyLogger.Trace("Entering " + MethodBase.GetCurrentMethod().Name);
try
{
AgentServiceRegistration svcreg = new AgentServiceRegistration
{
Name = name
};
ConsulClient.Agent.ServiceRegister(svcreg);
MyLogger.Debug("{0} registered in Consul Services", name);
return true;
}
catch (Exception ex)
{
MyLogger.Error("Error in registring {0} in Consul Services: {1}", name, ex.Message);
MyLogger.Debug(ex);
return false;
}
}
bool CreateConsulClient()
{
ConsulClient = new Client();
//Deregister any leftover service
ConsulClient.Agent.ServiceDeregister("AmazingService").Wait(5000);
AgentServiceRegistration svcreg = new AgentServiceRegistration
{
Name = "AmazingService",
Port = ListenPort,
Address = ListenAddress,
//,
// Tags = new[] { "consultest", "owintest" },
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(5)
}
};
//if (_consulClient.Agent.ServiceRegister(svcreg).Wait(5000)) _semaphore = _consulClient.Semaphore("AmazingService/lock", 1);
return ConsulClient.Agent.ServiceRegister(svcreg).Wait(5000);
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app, string host = null,
string port = null)
{
//获取consul客户端实例
var consulClient = app.ApplicationServices.GetRequiredService <IConsulClient>();
var logger = app.ApplicationServices.GetRequiredService <ILoggerFactory>().CreateLogger("AppExtensions");
var lifetime = app.ApplicationServices.GetRequiredService <IHostApplicationLifetime>();
if (!(app.Properties["server.Features"] is FeatureCollection features))
{
return(app);
}
//var addresses = features.Get<IServerAddressesFeature>();
//var address = addresses.Addresses.FirstOrDefault();
//if (address == null)
//{
// return app;
//}
var address = host + ":" + port;
if (string.IsNullOrWhiteSpace(host) || string.IsNullOrWhiteSpace(port))
{
Console.WriteLine($"host或者port为空！");
return(app);
}
Console.WriteLine($"address={address}");
var uri = new Uri(address);
Console.WriteLine($"host={uri.Host},port={uri.Port}");
var registration = new AgentServiceRegistration()
{
ID = $"Service-{uri.Port}",
Name = "WebApi",
Address = $"{uri.Host}",
Port = uri.Port,
Check = new AgentServiceCheck()
{
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
HTTP = $"{address}/HealthCheck", //健康检查地址
Timeout = TimeSpan.FromSeconds(5) //超时时间
}
};
logger.LogInformation("Registering with Consul");
logger.LogInformation($"Consul RegistrationID:{registration.ID}");
//注销
consulClient.Agent.ServiceDeregister(registration.ID).ConfigureAwait(true);
//注册
consulClient.Agent.ServiceRegister(registration).ConfigureAwait(true);
//应用程序关闭时候
lifetime.ApplicationStopping.Register(() =>
{
//正在注销
logger.LogInformation("Unregistering from Consul");
consulClient.Agent.ServiceDeregister(registration.ID).ConfigureAwait(true);
});
//每个服务都需要提供一个用于健康检查的接口，该接口不具备业务功能。服务注册时把这个接口的地址也告诉注册中心，注册中心会定时调用这个接口来检测服务是否正常，如果不正常，则将它移除，这样就保证了服务的可用性。
app.Map("/HealthCheck", s => { s.Run(async context => { await context.Response.WriteAsync("ok"); }); });
return(app);
}
public static void RegisterToConsul(this IApplicationBuilder app, IConfiguration configuration, IApplicationLifetime lifetime)
{
lifetime.ApplicationStarted.Register(() =>
{
string serviceName = configuration.GetValue <string>("consulConfig:serviceName");
string serviceIP = configuration.GetValue <string>("consulConfig:serviceIP");
string consulClientUrl = configuration.GetValue <string>("consulConfig:consulClientUrl");
string healthCheckRelativeUrl = configuration.GetValue <string>("consulConfig:healthCheckRelativeUrl");
int healthCheckIntervalInSecond = configuration.GetValue <int>("consulConfig:healthCheckIntervalInSecond");
ICollection <string> listenUrls = app.ServerFeatures.Get <IServerAddressesFeature>().Addresses;
if (string.IsNullOrWhiteSpace(serviceName))
{
throw new Exception("Please use --serviceName=yourServiceName to set serviceName");
}
if (string.IsNullOrEmpty(consulClientUrl))
{
consulClientUrl = "http://127.0.0.1:8500";
}
if (string.IsNullOrWhiteSpace(healthCheckRelativeUrl))
{
healthCheckRelativeUrl = "health";
}
healthCheckRelativeUrl = healthCheckRelativeUrl.TrimStart('/');
if (healthCheckIntervalInSecond <= 0)
{
healthCheckIntervalInSecond = 1;
}
string protocol;
int servicePort = 0;
if (!TryGetServiceUrl(listenUrls, out protocol, ref serviceIP, out servicePort, out var errorMsg))
{
throw new Exception(errorMsg);
}
var consulClient = new ConsulClient(ConsulClientConfiguration => ConsulClientConfiguration.Address = new Uri(consulClientUrl));
var httpCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(10),//服务启动多久后注册
Interval = TimeSpan.FromSeconds(healthCheckIntervalInSecond),
HTTP = $"{protocol}://{serviceIP}:{servicePort}/{healthCheckRelativeUrl}",
Timeout = TimeSpan.FromSeconds(2)
};
// 生成注册请求
var registration = new AgentServiceRegistration()
{
Checks = new[] { httpCheck },
ID = Guid.NewGuid().ToString(),
Name = serviceName,
Address = serviceIP,
Port = servicePort,
Meta = new Dictionary <string, string>()
{
["Protocol"] = protocol
},
Tags = new[] { $"{protocol}" }
};
consulClient.Agent.ServiceRegister(registration).Wait();
//服务停止时, 主动发出注销
lifetime.ApplicationStopping.Register(() =>
{
try
{
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
}
catch
{ }
});
});
}
//Returns unique service ID used for removing the service from registry.
public static string UseConsul(this IApplicationBuilder app)
{
using (var scope = app.ApplicationServices.CreateScope())
{
var consulOptions = scope.ServiceProvider.GetService <IOptions <ConsulOptions> >();
var fabioOptions = scope.ServiceProvider.GetService <IOptions <FabioOptions> >();
var enabled = consulOptions.Value.Enabled;
var consulEnabled = Environment.GetEnvironmentVariable("CONSUL_ENABLED")?.ToLowerInvariant();
if (!string.IsNullOrWhiteSpace(consulEnabled))
{
enabled = consulEnabled == "true" || consulEnabled == "1";
}
if (!enabled)
{
return(string.Empty);
}
var address = consulOptions.Value.Address;
if (string.IsNullOrWhiteSpace(address))
{
throw new ArgumentException("Consul address can not be empty.",
nameof(consulOptions.Value.PingEndpoint));
}
//https://cecilphillip.com/using-consul-for-service-discovery-with-asp-net-core/
// Retrieve Consul client from DI
var uniqueId = scope.ServiceProvider.GetService <IServiceId>().Id;
var client = scope.ServiceProvider.GetService <IConsulClient>();
var serviceName = consulOptions.Value.Service;
//create unique serviceId per service instance create, init standalone service after creation separately.
//use when we have multiple instance of a particular microservice and because each microservice has same name
//we need distinguish between services so for this case and we use serviceId
var serviceId = $"{serviceName}:{uniqueId}";
var port = consulOptions.Value.Port;
var pingEndpoint = consulOptions.Value.PingEndpoint;
var pingInterval = consulOptions.Value.PingInterval <= 0 ? 5 : consulOptions.Value.PingInterval;
var removeAfterInterval =
consulOptions.Value.RemoveAfterInterval <= 0 ? 10 : consulOptions.Value.RemoveAfterInterval;
// Register service with consul
var registration = new AgentServiceRegistration
{
Name = serviceName, //name use for group name a specific service
ID = serviceId, //unique name of each instance of a service in a group
Address = address,
Port = port,
//setup fabio tags as SSSD on consul and fabio create a routing table
Tags = fabioOptions.Value.Enabled ? GetFabioTags(serviceName, fabioOptions.Value.Service) : null
};
//https://cecilphillip.com/using-consul-for-health-checks-with-asp-net-core/
//PingEnabled for checking Health
if (consulOptions.Value.PingEnabled || fabioOptions.Value.Enabled)
{
var scheme = address.StartsWith("http", StringComparison.InvariantCultureIgnoreCase)
? string.Empty
: "http://";
var check = new AgentServiceCheck
{
Interval = TimeSpan.FromSeconds(pingInterval),
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(removeAfterInterval),
HTTP = $"{scheme}{address}{(port > 0 ? $":{port}" : string.Empty)}/{pingEndpoint}"
};
registration.Checks = new[] { check };
}
client.Agent.ServiceRegister(registration);
return(serviceId);
}
}
public void Agent_ServiceMaintenance()
{
var c = ClientTest.MakeClient();
var serviceReg = new AgentServiceRegistration()
{
Name = "redis"
};
c.Agent.ServiceRegister(serviceReg);
c.Agent.EnableServiceMaintenance("redis", "broken");
var checks = c.Agent.Checks();
var found = false;
foreach (var check in checks.Response)
{
if (check.Value.CheckID.Contains("maintenance"))
{
found = true;
Assert.AreEqual(check.Value.Status, CheckStatus.Critical);
Assert.AreEqual(check.Value.Notes, "broken");
}
}
Assert.IsTrue(found);
c.Agent.DisableServiceMaintenance("redis");
checks = c.Agent.Checks();
foreach (var check in checks.Response)
{
Assert.IsFalse(check.Value.CheckID.Contains("maintenance"));
}
c.Agent.ServiceDeregister("redis");
}
public static IApplicationBuilder RegisterWithConsul(this IApplicationBuilder app)
{
var consulClient = app.ApplicationServices
.GetRequiredService <IConsulClient>();
var configuration = app.ApplicationServices
.GetRequiredService <IConfiguration>();
var lifetime = app.ApplicationServices
.GetRequiredService <IApplicationLifetime>();
// Get server URI and IP address
var features = app.Properties["server.Features"] as FeatureCollection;
var addresses = features.Get <IServerAddressesFeature>();
var address = addresses.Addresses.First();
var uri = new Uri(address);
var ip = Dns.GetHostEntry(uri.Host).AddressList.FirstOrDefault(x => x.AddressFamily == AddressFamily.InterNetwork);
// Get configured service name and id, and update id with a random number for replica handling
var random = new Random();
var serviceId = configuration["consulConfig:serviceID"] + $"_{random.Next().ToString()}";
var serviceName = configuration["consulConfig:serviceName"];
var serviceTags = configuration.GetSection("consulConfig:serviceTags").Get <List <string> >().ToArray();
// AgentCheck - Possible health check options:
// - http://michaco.net/blog/ServiceDiscoveryAndHealthChecksInAspNetCoreWithConsul
var tcpCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
Interval = TimeSpan.FromSeconds(2),
TCP = $"{ip}:{uri.Port}"
};
var httpCheck = new AgentServiceCheck
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
Interval = TimeSpan.FromSeconds(2),
HTTP = $"{uri.Scheme}://{ip}:{uri.Port}/status"
};
// Register service with consul
var registration = new AgentServiceRegistration
{
ID = $"{serviceId}-{uri.Port}",
Name = serviceName,
Address = $"{ip}",
Port = uri.Port,
Tags = serviceTags,
Checks = new[] { tcpCheck, httpCheck }
};
Console.WriteLine("Registering with Consul");
Console.WriteLine($"IP: {ip}");
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
consulClient.Agent.ServiceRegister(registration).Wait();
// Enable deregistration of service from consul during clean shutdown
lifetime.ApplicationStopping.Register(() => {
Console.WriteLine("Deregistering from Consul");
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
});
return(app);
}
public void Agent_Services_MultipleChecks()
{
var c = ClientTest.MakeClient();
var reg = new AgentServiceRegistration()
{
Name = "foo",
Tags = new[] { "bar", "baz" },
Port = 8000,
Checks = new[]
{
new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
},
new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
}
};
c.Agent.ServiceRegister(reg);
var services = c.Agent.Services();
Assert.IsTrue(services.Response.ContainsKey("foo"));
var checks = c.Agent.Checks();
Assert.IsTrue(checks.Response.ContainsKey("service:foo:1"));
Assert.IsTrue(checks.Response.ContainsKey("service:foo:2"));
c.Agent.ServiceDeregister("foo");
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
var applicationLifetime = app.ApplicationServices.GetService <IHostApplicationLifetime>();
if (applicationLifetime == null)
{
throw new ArgumentNullException(nameof(applicationLifetime));
}
var consulClient = app.ApplicationServices.GetService <IConsulClient>();
if (consulClient == null)
{
throw new ArgumentNullException(nameof(consulClient));
}
var serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ServiceDiscoveryOptions> >();
if (serviceOptions == null)
{
throw new ArgumentNullException(nameof(serviceOptions));
}
var env = app.ApplicationServices.GetRequiredService <IHostEnvironment>();
if (env == null)
{
throw new ArgumentNullException(nameof(env));
}
//获取服务启动地址绑定信息
var features = app.Properties["server.Features"] as FeatureCollection;
var addresses = features.Get <IServerAddressesFeature>()
.Addresses
.Select(o => new Uri(o));
//在服务启动时,向Consul 中心进行注册
applicationLifetime.ApplicationStarted.Register(() =>
{
foreach (var address in addresses)
{
//设置启动服务的ID
var serviceId = $"{serviceOptions.Value.ServiceName}_{address.Host}:{address.Port}";
//设置健康检查
var httpCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1), //错误时间超过1分钟，移除
Interval = TimeSpan.FromSeconds(3), //30秒检查一次
HTTP = new Uri(address, "HealthCheck").OriginalString
};
var registration = new AgentServiceRegistration()
{
Checks = new[] { httpCheck }, //配置健康检查
Address = address.Host, //启动服务的地址
Port = address.Port, //启动服务的端口
ID = serviceId, //服务唯一ID
Name = serviceOptions.Value.ServiceName //对外服务名称
};
//向Consul 中心进行注册
consulClient.Agent.ServiceRegister(registration).GetAwaiter().GetResult();
}
});
//在程序停止时,向Consul 中心进行注销
applicationLifetime.ApplicationStopped.Register(() =>
{
foreach (var address in addresses)
{
//设定服务Id(全局唯一 unique）
var serviceId = $"{serviceOptions.Value.ServiceName}_{address.Host}:{address.Port}";
consulClient.Agent.ServiceDeregister(serviceId).GetAwaiter().GetResult();
}
});
return(app);
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
using var scope = app.ApplicationServices.CreateScope();
var consulOptions = scope.ServiceProvider.GetRequiredService <ConsulOptions>();
var lifetime = scope.ServiceProvider.GetRequiredService <IHostApplicationLifetime>();
var client = scope.ServiceProvider.GetRequiredService <IConsulClient>();
if (!consulOptions.Enabled)
{
return(app);
}
if (string.IsNullOrEmpty(consulOptions.Service))
{
throw new ConsulConfigurationException("Service deve ter um nome");
}
if (consulOptions.Port == 0)
{
throw new ConsulConfigurationException("Service deve ter uma porta");
}
if (string.IsNullOrEmpty(consulOptions.Address))
{
throw new ConsulConfigurationException("Service deve ter um Address");
}
var consulServiceRegistration = new AgentServiceRegistration
{
ID = consulOptions.Id,
Name = consulOptions.Service,
Address = consulOptions.Address,
Port = consulOptions.Port,
Tags = consulOptions.Tags,
Meta = consulOptions.MetaData,
};
if (consulOptions.PingEnabled)
{
var healthService = scope.ServiceProvider.GetRequiredService <HealthCheckService>();
if (healthService != null)
{
var check = new AgentCheckRegistration()
{
HTTP = $"http://{consulOptions.Address}/health",
Notes = "Checks /health/status on localhost",
Timeout = TimeSpan.FromSeconds(3),
Interval = TimeSpan.FromSeconds(10),
DockerContainerID = System.Environment.MachineName
};
consulServiceRegistration.Checks = new[] { check };
}
else
{
throw new ConsulConfigurationException("Verifique os parametros de configuração do consul");
}
}
client.Agent.ServiceRegister(consulServiceRegistration);
lifetime.ApplicationStopping.Register(() => client.Agent.ServiceDeregister(consulServiceRegistration.ID).Wait());
return(app);
}
public async Task Agent_EnableTagOverride()
{
var reg1 = new AgentServiceRegistration
{
Name = "foo1",
Port = 8000,
Address = "192.168.0.42",
EnableTagOverride = true
};
var reg2 = new AgentServiceRegistration
{
Name = "foo2",
Port = 8000
};
using (IConsulClient client = new ConsulClient())
{
await client.Agent.ServiceRegister(reg1);
await client.Agent.ServiceRegister(reg2);
var services = await client.Agent.Services();
Assert.Contains("foo1", services.Response.Keys);
Assert.True(services.Response["foo1"].EnableTagOverride);
Assert.Contains("foo2", services.Response.Keys);
Assert.False(services.Response["foo2"].EnableTagOverride);
}
}
public static IApplicationBuilder UseConsulRegisterService(this IApplicationBuilder app)
{
var appLife = app.ApplicationServices.GetRequiredService <IApplicationLifetime>() ?? throw new ArgumentException("Missing dependency", nameof(IApplicationLifetime));
var serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ServiceDisvoveryOptions> >() ?? throw new ArgumentException("Missing dependency", nameof(IOptions <ServiceDisvoveryOptions>));
var consul = app.ApplicationServices.GetRequiredService <IConsulClient>() ?? throw new ArgumentException("Missing dependency", nameof(IConsulClient));
var loggerFactory = app.ApplicationServices.GetRequiredService <ILoggerFactory>();
var logger = loggerFactory.CreateLogger("ServiceDiscoveryBuilder");
if (string.IsNullOrEmpty(serviceOptions.Value.ServiceName))
{
throw new ArgumentException("Service Name must be configured", nameof(serviceOptions.Value.ServiceName));
}
IEnumerable <Uri> addresses = null;
if (serviceOptions.Value.Endpoints != null && serviceOptions.Value.Endpoints.Length > 0)
{
logger.LogInformation($"Using {serviceOptions.Value.Endpoints.Length} configured endpoints for service registration.");
addresses = serviceOptions.Value.Endpoints.Select(p => new Uri(p));
}
else
{
logger.LogInformation($"Trying to use server.Features to figure out the service endpoints for service registration.");
var features = app.Properties["server.Features"] as FeatureCollection;
addresses = features.Get <IServerAddressesFeature>()
.Addresses
.Select(p => new Uri(p)).ToArray();
}
logger.LogInformation($"Found {addresses.Count()} endpoints: {string.Join(",", addresses.Select(p => p.OriginalString))}.");
foreach (var address in addresses)
{
var serviceId = $"{serviceOptions.Value.ServiceName}_{address.Host}:{address.Port}";
logger.LogInformation($"Registering service {serviceId} for address {address}.");
var serviceChecks = new List <AgentServiceCheck>();
if (!string.IsNullOrEmpty(serviceOptions.Value.HealthCheckTemplate))
{
var healthCheckUri = new Uri(address, serviceOptions.Value.HealthCheckTemplate).OriginalString;
serviceChecks.Add(new AgentServiceCheck()
{
Status = HealthStatus.Passing,
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1),
Interval = TimeSpan.FromSeconds(5),
HTTP = healthCheckUri
});
logger.LogInformation($"Adding healthcheck for service {serviceId}, checking {healthCheckUri}.");
}
var registration = new AgentServiceRegistration()
{
Checks = serviceChecks.ToArray(),
Address = address.Host,
ID = serviceId,
Name = serviceOptions.Value.ServiceName,
Port = address.Port
};
consul.Agent.ServiceRegister(registration).GetAwaiter().GetResult();
appLife.ApplicationStopping.Register(() =>
{
consul.Agent.ServiceDeregister(serviceId).GetAwaiter().GetResult();
});
}
return(app);
}
public async Task Agent_SetTTLStatus()
{
var svcID = KVTest.GenerateTestKeyName();
var registration = new AgentServiceRegistration
{
Name = svcID,
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
await _client.Agent.ServiceRegister(registration);
await _client.Agent.WarnTTL("service:" + svcID, "warning");
var checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Warning, checks.Response["service:" + svcID].Status);
Assert.Equal("warning", checks.Response["service:" + svcID].Output);
await _client.Agent.PassTTL("service:" + svcID, "passing");
checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Passing, checks.Response["service:" + svcID].Status);
Assert.Equal("passing", checks.Response["service:" + svcID].Output);
await _client.Agent.FailTTL("service:" + svcID, "failing");
checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Critical, checks.Response["service:" + svcID].Status);
Assert.Equal("failing", checks.Response["service:" + svcID].Output);
await _client.Agent.UpdateTTL("service:" + svcID, svcID, TTLStatus.Pass);
checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Passing, checks.Response["service:" + svcID].Status);
Assert.Equal(svcID, checks.Response["service:" + svcID].Output);
await _client.Agent.UpdateTTL("service:" + svcID, "foo warning", TTLStatus.Warn);
checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Warning, checks.Response["service:" + svcID].Status);
Assert.Equal("foo warning", checks.Response["service:" + svcID].Output);
await _client.Agent.UpdateTTL("service:" + svcID, "foo failing", TTLStatus.Critical);
checks = await _client.Agent.Checks();
Assert.Contains("service:" + svcID, checks.Response.Keys);
Assert.Equal(HealthStatus.Critical, checks.Response["service:" + svcID].Status);
Assert.Equal("foo failing", checks.Response["service:" + svcID].Output);
await _client.Agent.ServiceDeregister(svcID);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, IApplicationLifetime applicationTime)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseHsts();
}
app.UseHttpsRedirection();
//在Asp.net使用httphandler和httpmodule做拦截等 在.net core中 middleware
//app.Map("/values", mapApp =>
//{
// mapApp.Use(async (context, next) =>
// {
// Console.WriteLine("1111");
// await context.Response.WriteAsync("Second Middleware in. \r\n");
// await next.Invoke();
// await context.Response.WriteAsync("Second Middleware out. \r\n");
// });
// mapApp.Run(async context =>
// {
// await context.Response.WriteAsync("Second. \r\n");
// });
//});
//注册服务 告诉consul我可以提供什么服务 告诉提供服务的ip等
string ip = Configuration["ip"];
string port = Configuration["port"];
string serviceName = "MsgService";
string serviceId = serviceName + Guid.NewGuid();
//tcp/ip
using (var consulClient = new ConsulClient(consulConfig))
//using (var consulClient = new ConsulClient(c=> { c.Address = new Uri("http://127.0.0.1:8500");c.Datacenter = "dc1"; }))
{
AgentServiceRegistration asr = new AgentServiceRegistration();
asr.Address = ip;
asr.Port = Convert.ToInt32(port);
asr.ID = serviceId;
asr.Name = serviceName;
asr.Check = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
HTTP = $"http://{ip}:{port}/api/Health",
Interval = TimeSpan.FromSeconds(10),
Timeout = TimeSpan.FromSeconds(5)
};
consulClient.Agent.ServiceRegister(asr).Wait();
};
applicationTime.ApplicationStopped.Register(() =>
{
using (var consulClient = new ConsulClient(consulConfig))
{
Console.WriteLine("应用退出，开始从consul注销");
consulClient.Agent.ServiceDeregister(serviceId).Wait();
}
});
app.UseSwagger(c => { });
// Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
// specifying the Swagger JSON endpoint.
app.UseSwaggerUI(c =>
{
//c.RoutePrefix = "swagger/ui";
c.SwaggerEndpoint("/swagger/v1/swagger.json", "MyApi v1");
});
app.UseMvc();
//app.UseStaticFiles();
// Enable middleware to serve generated Swagger as a JSON endpoint.
}
public async Task Register(IApplicationBuilder app, string name, string tag)
{
var serviceProvider = app.ApplicationServices;
var logger = serviceProvider.GetRequiredService <ILogger <ConsulHelper> >();
var configuration = serviceProvider.GetRequiredService <IConfiguration>();
var healthConfiguration = configuration.GetSection("Health").Get <HealthConfiguration>() ?? new HealthConfiguration();
var proxyConfiguration = configuration.GetSection("Proxy").Get <ProxyConfiguration>() ?? new ProxyConfiguration();
var features = app.Properties["server.Features"] as FeatureCollection;
var addresses = features?.Get <IServerAddressesFeature>();
var address = addresses?.Addresses.FirstOrDefault();
if (address is null)
{
logger.LogError("Null address while registration");
return;
}
var uri = new Uri(address);
using var client = new ConsulClient();
var agentRegistration = new AgentServiceRegistration()
{
Address = $"{uri.Scheme}://{uri.Host}",
Port = uri.Port,
ID = Assembly.GetEntryAssembly()?.GetName().Name,
Name = name,
Tags = new[] { tag }
};
if (healthConfiguration.UseHealthCheck)
{
var httpRoot = string.IsNullOrWhiteSpace(proxyConfiguration.Url)
? address
: $"{proxyConfiguration.Url}:{uri.Port}";
agentRegistration.Check = new AgentCheckRegistration
{
HTTP = $"{httpRoot}{healthConfiguration.HealthEndpoint}",
Timeout = healthConfiguration.Timeout,
Interval = healthConfiguration.Interval,
DeregisterCriticalServiceAfter = healthConfiguration.DeregisterServiceAfter
};
}
try
{
await client.Agent.ServiceRegister(agentRegistration);
logger.LogInformation("Service {Name} {Address} has been registered in Consul",
agentRegistration.Name, address);
}
catch (Exception ex)
{
logger.LogError(ex, "Service {Name} {Address} has NOT been registered in Consul",
agentRegistration.Name, address);
}
}
/// <summary>
/// 使用Consul并且注册当前API服务
/// </summary>
/// <returns></returns>
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
#region check consul
if (!isUseConsulConfigCenter)
{
}
if (string.IsNullOrEmpty(consulIP))
{
throw new Exception("配置项Consul IP为空--->Consul:IP");
}
if (string.IsNullOrEmpty(consulPort))
{
throw new Exception("配置项Consul 端口为空--->Consul:Port");
}
if (string.IsNullOrEmpty(serverIP))
{
throw new Exception("配置项服务IP为空--->Server:IP");
}
if (string.IsNullOrEmpty(serverPort))
{
throw new Exception("配置项服务端口为空--->Server:Port");
}
#endregion
var lifetime = app.ApplicationServices.GetRequiredService <IHostApplicationLifetime>();
using (var consulClient = new ConsulClient(x =>
{
x.Address = new Uri(consulServerUrl);
if (!string.IsNullOrEmpty(aclToken))
{
x.Token = aclToken;
}
}))
{
var config = consulClient.KV.Get(consulServiceConfigName).Result;
var ocelotConfig = consulClient.KV.Get("InternalConfiguration").Result;
var ocelotConfigVal = Encoding.UTF8.GetString(ocelotConfig.Response.Value, 0, ocelotConfig.Response.Value.Length);
if (config.StatusCode == HttpStatusCode.NotFound)
{
var putPair = new KVPair(consulServiceConfigName);
var putAttempt = consulClient.KV.Put(putPair).Result;
}
//服务名称
var registration = new AgentServiceRegistration()
{
ID = Guid.NewGuid().ToString("N"),
Name = consulServiceName,
Address = serverIP,
Port = Convert.ToInt32(serverPort)
};
if (openHealth)
{
registration.Check = new AgentServiceCheck()
{
//服务启动多久后注册
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
//健康检查时间间隔
Interval = TimeSpan.FromSeconds(10),
//健康检查地址
HTTP = $"http://{serverIP}:{serverPort}/api/health",
Timeout = TimeSpan.FromSeconds(5)
};
}
// 注册服务
consulClient.Agent.ServiceRegister(registration).Wait();
// 应用程序终止时，注销服务
lifetime.ApplicationStopping.Register(() =>
{
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
});
return(app);
}
}
public static void UseMicroService(this IApplicationBuilder app, IHostingEnvironment env, IApplicationLifetime lifetime, SysConfig serviceInfo)
{
new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json").Build();
string serviceId = $" {serviceInfo.Name}-{serviceInfo.LocalAddress}";
string address = serviceInfo.LocalAddress.Split(new char[] { ':' }, StringSplitOptions.None)[0];
string s = serviceInfo.LocalAddress.Split(new char[] { ':' }, StringSplitOptions.None)[1];
if (!string.IsNullOrEmpty(serviceInfo.ServiceDiscoveryAddress))
{
using (ConsulClient consulClient = new ConsulClient(x =>
{
x.Address = new Uri(serviceInfo.ServiceDiscoveryAddress);
}))
{
var agentServiceRegistration = new AgentServiceRegistration
{
Address = address,
Port = int.Parse(s),
ID = serviceId,
Name = serviceInfo.Name,
Check = new AgentServiceCheck
{
DeregisterCriticalServiceAfter = new TimeSpan?(TimeSpan.FromSeconds(5.0)),
HTTP = "http://" + serviceInfo.LocalAddress + "/healthcheck",
Interval = new TimeSpan?(TimeSpan.FromSeconds(2.0)),
Timeout = new TimeSpan?(TimeSpan.FromSeconds(1.0))
}
};
agentServiceRegistration.Tags = new string[]
{
serviceInfo.DisplayName
};
consulClient.Agent.ServiceRegister(agentServiceRegistration, default(CancellationToken)).Wait();
}
lifetime.ApplicationStopped.Register(() =>
{
using (ConsulClient consulClient2 = new ConsulClient(x =>
{
x.Address = new Uri(serviceInfo.ServiceDiscoveryAddress);
}))
{
consulClient2.Agent.ServiceDeregister(serviceId, default(CancellationToken)).Wait();
}
});
app.Map("/healthcheck", delegate(IApplicationBuilder ab)
{
ab.Run(async delegate(HttpContext context)
{
await context.Response.WriteAsync("ok", default(CancellationToken));
});
});
}
//if (!env.IsProduction())
//{
app.UseSwagger(opt =>
{
opt.RouteTemplate = "{documentName}/swagger.json";
});
//app.UseSwagger();
app.UseSwaggerUI(delegate(SwaggerUIOptions opt)
{
opt.SwaggerEndpoint("/" + serviceInfo.Name.ToLower() + "/swagger.json", serviceInfo.DisplayName);
opt.RoutePrefix = string.Empty;//开启默认swagger/index.html路径
opt.DocExpansion(DocExpansion.None);
});
//}
app.UseAuthentication();
}
public async Task <string> RegisterServiceAsync(string name, EndPoint endpoint, CancellationToken token = default(CancellationToken))
{
if (endpoint is IPEndPoint node)
{
var serviceId = string.Format("{0}-{1}-{2}", name, node.Address.ToString(), node.Port);
var checkId = string.Format("{0}-{1}", node.Address.ToString(), node.Port);
var acr = new AgentCheckRegistration
{
TCP = node.ToString(),
Name = checkId,
ID = checkId,
Interval = TimeSpan.FromSeconds(5),
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(10)
};
var asr = new AgentServiceRegistration
{
Address = node.Address.ToString(),
ID = serviceId,
Name = name,
Port = node.Port,
Check = acr
};
var res = await _client.Agent.ServiceRegister(asr, token).ConfigureAwait(false);
if (res.StatusCode != HttpStatusCode.OK)
{
throw new ApplicationException($"Failed to register service {name} on endpoint {node}");
}
return(serviceId);
}
if (endpoint is DnsEndPoint dns)
{
var serviceId = string.Format("{0}-{1}-{2}", name, dns.Host, dns.Port);
var checkId = string.Format("{0}-{1}", dns.Host, dns.Port);
var acr = new AgentCheckRegistration
{
TCP = dns.ToString(),
Name = checkId,
ID = checkId,
Interval = TimeSpan.FromSeconds(5),
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(10),
};
var asr = new AgentServiceRegistration
{
Address = dns.Host,
Port = dns.Port,
ID = serviceId,
Name = name,
Check = acr
};
var res = await _client.Agent.ServiceRegister(asr, token).ConfigureAwait(false);
if (res.StatusCode != HttpStatusCode.OK)
{
throw new ApplicationException($"Failed to register service {name} on endpoint {dns}");
}
return(serviceId);
}
throw new ArgumentException("The type of endpoint must be one of IPEndPoint or DnsEndPoint", nameof(endpoint));
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
var configuration = app.ApplicationServices.GetRequiredService <IConfiguration>();
var serviceName = configuration.GetSection("ServiceName").Value;
var consulClient = app.ApplicationServices.GetRequiredService <IConsulClient>();
var logger = app.ApplicationServices.GetRequiredService <ILoggerFactory>();
var lifeTime = app.ApplicationServices.GetRequiredService <IApplicationLifetime>();
if (!(app.Properties["server.Features"] is FeatureCollection features))
{
return(app);
}
var addresses = features.Get <IServerAddressesFeature>();
var address = addresses.Addresses.First();
// foreach (var item in addresses.Addresses)
// {
// Console.WriteLine($"inside loop - address = {item}");
// }
Console.WriteLine($"address = {address}");
// var uri = new Uri(address);
// Console.WriteLine($"Host: {uri.Host}");
//get host name and IP
var hostName = Dns.GetHostName(); // get container id
var ip = Dns.GetHostEntry(hostName).AddressList.FirstOrDefault(x => x.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork);
Console.WriteLine($"Host Name: {hostName}, IP Address: {ip}");
// to add this service with Fabio Load balancer add httpcheck and tags in registration
var httpcheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
Interval = TimeSpan.FromSeconds(10),
HTTP = $"http://{ip}:{80}/Health/IsAlive",
Timeout = TimeSpan.FromSeconds(5)
};
// register service with Consul
var registration = new AgentServiceRegistration()
{
/*
* ID = $"{serviceName}-{uri.Port}",
* Name = serviceName,
* Address = $"{uri.Host}",
* Port = uri.Port
*/
ID = $"{serviceName}-{Guid.NewGuid().ToString()}",
Name = serviceName,
Address = $"{ip}", // $"{hostName}",
Port = 80,
// this is for fabio LB
Tags = new[] { $"urlprefix-/" }, // end with slash (/) to catch all route
Checks = new[] { httpcheck }
};
//logger.LogInformation("Registering with Consul");
consulClient.Agent.ServiceDeregister(registration.ID).ConfigureAwait(true);
consulClient.Agent.ServiceRegister(registration).ConfigureAwait(true);
lifeTime.ApplicationStopped.Register(() =>
{
//logger.LogInformation("Unregistering from Consul");
consulClient.Agent.ServiceDeregister(registration.ID).ConfigureAwait(true);
});
return(app);
}
public static IApplicationBuilder UseConsul(this IApplicationBuilder app)
{
// 获取服务配置项
var serviceOptions = app.ApplicationServices.GetRequiredService <IOptions <ConsulServiceOptions> >().Value;
// 服务ID必须保证唯一
serviceOptions.ServiceId = Guid.NewGuid().ToString();
//consul对象
var consulClient = new ConsulClient(consulConfig => { consulConfig.Address = new Uri(serviceOptions.ConsulAddress); });
// 使用参数配置服务注册地址
var config = app.ApplicationServices.GetRequiredService <IConfiguration>();
var address = "";//config["urls"];
if (string.IsNullOrEmpty(address))
{
// 获取当前服务地址和端口
var features = app.Properties["server.Features"] as FeatureCollection;
address = features?.Get <IServerAddressesFeature>().Addresses.FirstOrDefault();
}
Console.WriteLine("--------------address:" + address);
var uri = new Uri(address);
var readom = new Random();
// 节点服务注册对象
var registration = new AgentServiceRegistration()
{
ID = serviceOptions.ServiceId,
Name = serviceOptions.ServiceName,// 服务名
Address = uri.Host,
Port = uri.Port, // 服务端口
Tags = new string[] { uri.Port.ToString() },
Meta = new Dictionary <string, string>()
{
{ serviceOptions.ServiceName, serviceOptions.ServiceId },
{ "Weight", readom.Next(10).ToString() }
},
Check = new AgentServiceCheck
{
// 注册超时
Timeout = TimeSpan.FromSeconds(5),
// 服务停止多久后注销服务
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(5),
// 健康检查地址
HTTP = $"{uri.Scheme}://{uri.Host}:{uri.Port}{serviceOptions.HealthCheck}",
// 健康检查时间间隔
Interval = TimeSpan.FromSeconds(10),
}
};
// 注册服务
consulClient.Agent.ServiceRegister(registration).Wait();
// 获取主机生命周期管理接口
var lifetime = app.ApplicationServices.GetRequiredService <IHostApplicationLifetime>();
// 应用程序终止时，注销服务
lifetime.ApplicationStopping.Register(() =>
{
consulClient.Agent.ServiceDeregister(serviceOptions.ServiceId).Wait();
});
return(app);
}
public async Task Agent_SetTTLStatus()
{
var client = new ConsulClient();
var registration = new AgentServiceRegistration()
{
Name = "foo",
Check = new AgentServiceCheck
{
TTL = TimeSpan.FromSeconds(15)
}
};
await client.Agent.ServiceRegister(registration);
await client.Agent.WarnTTL("service:foo", "warning");
var checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Warning, checks.Response["service:foo"].Status);
Assert.Equal("warning", checks.Response["service:foo"].Output);
await client.Agent.PassTTL("service:foo", "passing");
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Passing, checks.Response["service:foo"].Status);
Assert.Equal("passing", checks.Response["service:foo"].Output);
await client.Agent.FailTTL("service:foo", "failing");
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Critical, checks.Response["service:foo"].Status);
Assert.Equal("failing", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo", TTLStatus.Pass);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Passing, checks.Response["service:foo"].Status);
Assert.Equal("foo", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo warning", TTLStatus.Warn);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Warning, checks.Response["service:foo"].Status);
Assert.Equal("foo warning", checks.Response["service:foo"].Output);
await client.Agent.UpdateTTL("service:foo", "foo failing", TTLStatus.Critical);
checks = await client.Agent.Checks();
Assert.Contains("service:foo", checks.Response.Keys);
Assert.Equal(CheckStatus.Critical, checks.Response["service:foo"].Status);
Assert.Equal("foo failing", checks.Response["service:foo"].Output);
await client.Agent.ServiceDeregister("foo");
}
//Returns unique service ID used for removing the service from registry.
public static string UseConsul(this IApplicationBuilder app)
{
using (var scope = app.ApplicationServices.CreateScope())
{
var consulOptions = scope.ServiceProvider.GetService <IOptions <ConsulOptions> >();
var fabioOptions = scope.ServiceProvider.GetService <IOptions <FabioOptions> >();
var enabled = consulOptions.Value.Enabled;
var consulEnabled = Environment.GetEnvironmentVariable("CONSUL_ENABLED")?.ToLowerInvariant();
if (!string.IsNullOrWhiteSpace(consulEnabled))
{
enabled = consulEnabled == "true" || consulEnabled == "1";
}
if (!enabled)
{
return(string.Empty);
}
var address = consulOptions.Value.Address;
if (string.IsNullOrWhiteSpace(address))
{
throw new ArgumentException("Consul address can not be empty.",
nameof(consulOptions.Value.PingEndpoint));
}
var uniqueId = scope.ServiceProvider.GetService <IServiceId>().Id;
var client = scope.ServiceProvider.GetService <IConsulClient>();
var serviceName = consulOptions.Value.Service;
var serviceId = $"{serviceName}:{uniqueId}";
var port = consulOptions.Value.Port;
var pingEndpoint = consulOptions.Value.PingEndpoint;
var pingInterval = consulOptions.Value.PingInterval <= 0 ? 5 : consulOptions.Value.PingInterval;
var removeAfterInterval =
consulOptions.Value.RemoveAfterInterval <= 0 ? 10 : consulOptions.Value.RemoveAfterInterval;
var registration = new AgentServiceRegistration
{
Name = serviceName,
ID = serviceId,
Address = address,
Port = port,
Tags = fabioOptions.Value.Enabled ? GetFabioTags(serviceName, fabioOptions.Value.Service) : null
};
if (consulOptions.Value.PingEnabled || fabioOptions.Value.Enabled)
{
var scheme = address.StartsWith("http", StringComparison.InvariantCultureIgnoreCase)
? string.Empty
: "http://";
var check = new AgentServiceCheck
{
Interval = TimeSpan.FromSeconds(pingInterval),
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(removeAfterInterval),
HTTP = $"{scheme}{address}{(port > 0 ? $":{port}" : string.Empty)}/{pingEndpoint}"
};
registration.Checks = new[] { check };
}
client.Agent.ServiceRegister(registration);
return(serviceId);
}
}
public async Task Agent_Checks_Docker()
{
using (var client = new ConsulClient())
{
var serviceReg = new AgentServiceRegistration()
{
Name = "redis"
};
await client.Agent.ServiceRegister(serviceReg);
var reg = new AgentCheckRegistration()
{
Name = "redischeck",
ServiceID = "redis",
DockerContainerID = "f972c95ebf0e",
Script = "/bin/true",
Shell = "/bin/bash",
Interval = TimeSpan.FromSeconds(10)
};
await client.Agent.CheckRegister(reg);
var checks = await client.Agent.Checks();
Assert.True(checks.Response.ContainsKey("redischeck"));
Assert.Equal("redis", checks.Response["redischeck"].ServiceID);
await client.Agent.CheckDeregister("redischeck");
await client.Agent.ServiceDeregister("redis");
}
}
public async Task Agent_ServiceAddress()
{
var client = new ConsulClient();
var registration1 = new AgentServiceRegistration()
{
Name = "foo1",
Port = 8000,
Address = "192.168.0.42"
};
var registration2 = new AgentServiceRegistration()
{
Name = "foo2",
Port = 8000
};
await client.Agent.ServiceRegister(registration1);
await client.Agent.ServiceRegister(registration2);
var services = await client.Agent.Services();
Assert.True(services.Response.ContainsKey("foo1"));
Assert.True(services.Response.ContainsKey("foo2"));
Assert.Equal("192.168.0.42", services.Response["foo1"].Address);
Assert.True(string.IsNullOrEmpty(services.Response["foo2"].Address));
await client.Agent.ServiceDeregister("foo1");
await client.Agent.ServiceDeregister("foo2");
}
public static IApplicationBuilder UseConsulRegisterService(this IApplicationBuilder app, IHostingEnvironment env)
{
var loggerFactory = app.ApplicationServices.GetService <ILoggerFactory>();
var lifetime = app.ApplicationServices.GetService <IApplicationLifetime>();
var consul = app.ApplicationServices.GetRequiredService <IConsulClient>();
var serviceDiscoveryOptions = app.ApplicationServices.GetService <IOptions <ServiceDiscoveryOptions> >().Value;
var logger = loggerFactory.CreateLogger("ServiceDiscoveryBuilder");
if (string.IsNullOrWhiteSpace(serviceDiscoveryOptions.ServiceName))
{
throw new ArgumentException("Service Name must be configured", nameof(serviceDiscoveryOptions.ServiceName));
}
IEnumerable <Uri> addresses = null;
if (serviceDiscoveryOptions.Endpoints != null && serviceDiscoveryOptions.Endpoints.Length > 0)
{
logger.LogInformation($"Using {serviceDiscoveryOptions.Endpoints.Length} configured endpoints for service registration.");
addresses = serviceDiscoveryOptions.Endpoints.Select(p => new Uri(p));
}
else
{
logger.LogInformation($"Trying to use server.Features to figure out the service endpoints for service registration.");
var features = app.Properties["server.Features"] as FeatureCollection;//server.Features 只有在使用 kestrel托管服务时，才可用
addresses = features.Get <IServerAddressesFeature>()
.Addresses.Select(p => new Uri(p));
}
logger.LogInformation($"Found {addresses.Count()} endpoints:{string.Join(",", addresses.Select(p => p.OriginalString))}.");
foreach (var address in addresses)
{
var serviceId = $"{serviceDiscoveryOptions.ServiceName}_{address.Host}:{address.Port}";
logger.LogInformation($"Registering service {serviceId} for address {address}.");
var serviceChecks = new List <AgentServiceCheck>();
//强制必须配置HealthCheckTemplate，否则不向Consul注册服务
if (!string.IsNullOrWhiteSpace(serviceDiscoveryOptions.HealthCheckTemplate))
{
var healthCheckUri = new Uri(address, serviceDiscoveryOptions.HealthCheckTemplate).OriginalString;
var serviceCheck = new AgentServiceCheck()
{
DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(1),
Interval = TimeSpan.FromSeconds(30),
HTTP = healthCheckUri
};
if (env.IsDevelopment())
{
serviceCheck.DeregisterCriticalServiceAfter = TimeSpan.FromMinutes(30);
serviceCheck.Interval = TimeSpan.FromSeconds(30);
}
serviceChecks.Add(serviceCheck);
logger.LogInformation($"Adding healthcheck for service {serviceId},checking {healthCheckUri}");
var registration = new AgentServiceRegistration()
{
Checks = serviceChecks.ToArray(),
Address = address.Host,
ID = serviceId,
Name = serviceDiscoveryOptions.ServiceName,
Port = address.Port
};
consul.Agent.ServiceRegister(registration).GetAwaiter().GetResult();
lifetime.ApplicationStopping.Register(() =>
{
consul.Agent.ServiceDeregister(registration.ID).GetAwaiter().GetResult();
});
}
}
return(app);
}
public async Task Agent_Checks_ServiceBound()
{
var client = new ConsulClient();
var serviceReg = new AgentServiceRegistration()
{
Name = "redis"
};
await client.Agent.ServiceRegister(serviceReg);
var reg = new AgentCheckRegistration()
{
Name = "redischeck",
ServiceID = "redis",
TTL = TimeSpan.FromSeconds(15)
};
await client.Agent.CheckRegister(reg);
var checks = await client.Agent.Checks();
Assert.True(checks.Response.ContainsKey("redischeck"));
Assert.Equal("redis", checks.Response["redischeck"].ServiceID);
await client.Agent.CheckDeregister("redischeck");
await client.Agent.ServiceDeregister("redis");
}
public async Task StartAsync(CancellationToken cancellationToken)
{
if (!_consulConfig.IsEnable)
{
return;
}
// Create a linked token so we can trigger cancellation outside of this token's cancellation
_cts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
var features = _server.Features;
var address = _consulConfig.ServiceEndpoint;
if (string.IsNullOrWhiteSpace(address))
{
var addresses = features.Get <IServerAddressesFeature>();
_logger.Log(LogLevel.Information, $"Consul > Host All Address is: {string.Join(";", addresses.Addresses)}");
address = addresses.Addresses.First();
address = address.Replace("[::]", "127.0.0.1");
}
_logger.Log(LogLevel.Information, $"Consul > Config Service Endpoint is: {address}");
var uri = new Uri(address);
_registrationId = $"{_consulConfig.ServiceId}-{EnvHelper.MachineName}:{uri.Port}";
var healthCheckPath = _healthCheckConfig.Endpoint.Trim().Replace("/", string.Empty);
var registration = new AgentServiceRegistration
{
ID = _registrationId,
Name = _consulConfig.ServiceName.Replace(" ", "_"),
Address = uri.Host,
Port = uri.Port,
Tags = _consulConfig.Tags.ToArray(),
Check = new AgentServiceCheck()
{
HTTP = $"{uri.Scheme}://{uri.Host}:{uri.Port}/{healthCheckPath}",
Timeout = _consulConfig.CheckTimeOut,
Interval = _consulConfig.CheckInternal,
DeregisterCriticalServiceAfter = _consulConfig.DeregisterDeadServiceAfter,
},
EnableTagOverride = true
};
_logger.Log(LogLevel.Information, "Consul > Registering...");
try
{
await _consulClient.Agent.ServiceRegister(registration, cancellationToken);
_logger.Log(LogLevel.Information, "Consul > Registered!");
}
catch (Exception ex)
{
_logger.Log(LogLevel.Error, "Consul > Register Failed!");
_logger.Log(LogLevel.Error, $"Consul > {ex}");
}
}
/// <summary>
/// 创建Consul客户端注册并根据选项进行配置
/// </summary>
/// <param name="options">选项配置</param>
/// <param name="getLocalServiceAddress">回调获取本地服务地址</param>
/// <returns>Consul客户端</returns>
public static ConsulClient CreateConsulClientRegister(ConsulOptions options, Func <string> getLocalServiceAddress = null)
{
if (options == null)
{
throw new ArgumentNullException("选项配置不能为null");
}
if (string.IsNullOrWhiteSpace(options.ConsulAddress))
{
throw new ArgumentNullException("Consul地址不能为空");
}
if (string.IsNullOrWhiteSpace(options.ServiceName))
{
throw new ArgumentNullException("服务名不能为空");
}
// 服务ID，如果有配置指定，则使用配置，否则由程序生成唯一
options.ServiceId = options.ServiceId ?? $"{NetworkUtil.LocalIP}_{StringUtil.NewShortGuid()}";
// 定义consul客户端对象
var consulClient = new ConsulClient(clientConfig =>
{
clientConfig.Address = new Uri(options.ConsulAddress);
clientConfig.Datacenter = options.Datacenter;
});
// 获取本服务的地址，如果不为空，则直接取。否则取配置选项里的服务地址
if (string.IsNullOrWhiteSpace(options.ServiceAddress) && getLocalServiceAddress != null)
{
options.ServiceAddress = NetworkUtil.FilterUrl(getLocalServiceAddress());
}
if (string.IsNullOrWhiteSpace(options.ServiceAddress))
{
throw new ArgumentNullException("服务地址不能为空");
}
var serviceUri = new Uri(options.ServiceAddress);
// 定义一个代理服务注册对象
var registration = new AgentServiceRegistration()
{
ID = options.ServiceId,
Tags = options.Tags,
Check = new AgentServiceCheck() // 定义健康检测对象
{
DeregisterCriticalServiceAfter = TimeSpan.FromSeconds(options.ServiceCheck.DeregisterCriticalServiceAfter), // 服务停止后多久注销服务
HTTP = $"{serviceUri.Scheme}://{serviceUri.Host}:{serviceUri.Port}{options.ServiceCheck.HealthCheck}", // 健康检测URL地址
Interval = TimeSpan.FromSeconds(options.ServiceCheck.Interval), // 每隔多少时间检测
Timeout = TimeSpan.FromSeconds(options.ServiceCheck.Timeout), // 注册超时时间
},
Name = options.ServiceName,
Address = serviceUri.Host,
Port = serviceUri.Port,
};
// 将注册配置信息注册到consul里
consulClient.Agent.ServiceRegister(registration).Wait();
// 程序退出时需要反注册服务
AppDomain.CurrentDomain.ProcessExit += (sender, e) =>
{
consulClient.Agent.ServiceDeregister(registration.ID).Wait();
};
return(consulClient);
}
internal bool RegisterSvcInConsul()
{
_parent.ConsulClient.Agent.ServiceDeregister(Name).Wait(5000);
AgentServiceRegistration svcreg = new AgentServiceRegistration
{
Name = Name
};
return _parent.ConsulClient.Agent.ServiceRegister(svcreg).Wait(5000);
}