public static void AddJaeger(this ContainerBuilder builder)
{
builder.Register(context =>
{
var configuration = context.Resolve <IConfiguration>();
var options = new JaegerOptions();
configuration.GetSection("jaeger").Bind(options);
return(options);
}).SingleInstance();
builder.Register <ITracer>(context =>
{
var loggerFactory = context.Resolve <ILoggerFactory>();
var options = context.Resolve <JaegerOptions>();
var reporter = new RemoteReporter
.Builder()
.WithSender(new UdpSender(options.UdpHost, options.UdpPort, options.MaxPacketSize))
.WithLoggerFactory(loggerFactory)
.Build();
var sampler = GetSampler(options);
var tracer = new Tracer
.Builder(options.ServiceName)
.WithReporter(reporter)
.WithSampler(sampler)
.Build();
GlobalTracer.Register(tracer);
return(tracer);
}).SingleInstance();
}
private static ISampler GetSampler(JaegerOptions options)
{
switch (options.Sampler)
{
case "const": return(new ConstSampler(true));
case "rate": return(new RateLimitingSampler(options.MaxTracesPerSecond));
case "probabilistic": return(new ProbabilisticSampler(options.SamplingRate));
default: return(new ConstSampler(true));
}
}
