// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
// Create an OpenTracing ITracer with the default setting
OpenTracing.ITracer tracer = OpenTracingTracerFactory.CreateTracer();
// Use the tracer with ASP.NET Core dependency injection
services.AddSingleton <ITracer>(tracer);
// Use the tracer with OpenTracing.GlobalTracer.Instance
GlobalTracer.Register(tracer);
services.AddControllersWithViews();
services.AddDbContext <ProductsContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("ProductsContext")));
}
/// <summary>
/// 添加Jaeger链路追踪，实例对象ITracer
/// </summary>
/// <param name="services"></param>
/// <param name="openTracingBuilder"></param>
/// <returns></returns>
public static IServiceCollection AddJaeger(this IServiceCollection services, Action <IOpenTracingBuilder> openTracingBuilder = null)
{
if (openTracingBuilder == null)
{
openTracingBuilder = builder =>
{
builder.AddCoreFx();
builder.AddAspNetCore();
builder.AddEntityFrameworkCore();
builder.AddLoggerProvider();
builder.ConfigureGenericDiagnostics(options =>
{
});
builder.ConfigureAspNetCore(options =>
{
options.Hosting.OperationNameResolver = (context) =>
{
return(context.Request.Path.ToUriComponent());
};
options.Hosting.IgnorePatterns.Add(a =>
{
return(false);
});
});
};
}
services.AddOpenTracing(openTracingBuilder);
services.AddSingleton(serviceProvider =>
{
var config = serviceProvider.GetService <TracingConfiguration>();
var serviceName = config.SerivceName ?? serviceProvider.GetRequiredService <IHostingEnvironment>().ApplicationName;
var loggerFactory = serviceProvider.GetRequiredService <ILoggerFactory>();
var endPoint = config.EndPoint;
var senderConfiguration = new Jaeger.Configuration.SenderConfiguration(loggerFactory);
if (!string.IsNullOrEmpty(config.AgentHost))
{
senderConfiguration
.WithAgentHost(config.AgentHost)
.WithAgentPort(config.AgentPort);
}
else
{
senderConfiguration.WithEndpoint(endPoint);
}
var samplerConfiguration = new Jaeger.Configuration.SamplerConfiguration(loggerFactory)
.WithType(config.SamplerType);
var reporterConfiguration = new Jaeger.Configuration.ReporterConfiguration(loggerFactory)
.WithFlushInterval(TimeSpan.FromSeconds(config.FlushIntervalSeconds))
.WithLogSpans(config.LogSpans)
.WithSender(senderConfiguration);
OpenTracing.ITracer tracer = null;
if (config.Open)
{
tracer = new Jaeger.Configuration(serviceName, loggerFactory)
.WithSampler(samplerConfiguration)
.WithReporter(reporterConfiguration)
.GetTracer();
}
else
{
tracer = new Jaeger.Tracer.Builder(serviceName)
.WithSampler(new Jaeger.Samplers.RateLimitingSampler(0))
.WithReporter(new Jaeger.Reporters.NoopReporter()).Build();
}
if (!GlobalTracer.IsRegistered())
{
GlobalTracer.Register(tracer);
}
return(tracer);
});
return(services);
}
