package jaeger import ( "io" "github.com/containous/traefik/log" "github.com/opentracing/opentracing-go" jaegercfg "github.com/uber/jaeger-client-go/config" jaegerlog "github.com/uber/jaeger-client-go/log" jaegermet "github.com/uber/jaeger-lib/metrics" ) // Name sets the name of this tracer const Name = "jaeger" // Config provides configuration settings for a jaeger tracer type Config struct { SamplingServerURL string `description:"set the sampling server url." export:"false"` SamplingType string `description:"set the sampling type." export:"true"` SamplingParam float64 `description:"set the sampling parameter." export:"true"` LocalAgentHostPort string `description:"set jaeger-agent's host:port that the reporter will used." export:"false"` } // Setup sets up the tracer func (c *Config) Setup(componentName string) (opentracing.Tracer, io.Closer, error) { jcfg := jaegercfg.Configuration{ Sampler: &jaegercfg.SamplerConfig{ SamplingServerURL: c.SamplingServerURL, Type: c.SamplingType, Param: c.SamplingParam, }, Reporter: &jaegercfg.ReporterConfig{ LogSpans: true, LocalAgentHostPort: c.LocalAgentHostPort, }, } jLogger := jaegerlog.StdLogger jMetricsFactory := jaegermet.NullFactory // Initialize tracer with a logger and a metrics factory closer, err := jcfg.InitGlobalTracer( componentName, jaegercfg.Logger(jLogger), jaegercfg.Metrics(jMetricsFactory), ) if err != nil { log.Warnf("Could not initialize jaeger tracer: %s", err.Error()) return nil, nil, err } log.Debug("Jaeger tracer configured") return opentracing.GlobalTracer(), closer, nil }