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opentracing.go
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/
opentracing.go
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package logging
import (
"context"
"io"
"github.com/opentracing/opentracing-go"
"github.com/uber/jaeger-client-go/config"
)
func InitOpenTracing(serviceName string) io.Closer {
tracer, closer, err := initJaegerTracer(serviceName)
if err != nil {
}
opentracing.SetGlobalTracer(tracer)
return closer
}
func initJaegerTracer(serviceName string) (opentracing.Tracer, io.Closer, error) {
cfg := config.Configuration{
ServiceName: serviceName,
Sampler: &config.SamplerConfig{
Type: "const",
Param: 1,
SamplingServerURL: "jaeger:5778",
},
Reporter: &config.ReporterConfig{
LogSpans: true,
LocalAgentHostPort: "jaeger:6831",
},
}
return cfg.NewTracer()
}
func StartSpanFromContext(
ctx context.Context, name string) (opentracing.Span, context.Context) {
return opentracing.StartSpanFromContext(ctx, name)
}