46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
package datadog
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import (
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"io"
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"strings"
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"github.com/containous/traefik/log"
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"github.com/opentracing/opentracing-go"
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ddtracer "gopkg.in/DataDog/dd-trace-go.v1/ddtrace/opentracer"
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datadog "gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
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)
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// Name sets the name of this tracer
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const Name = "datadog"
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// Config provides configuration settings for a datadog tracer
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type Config struct {
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LocalAgentHostPort string `description:"Set datadog-agent's host:port that the reporter will used. Defaults to localhost:8126" export:"false"`
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GlobalTag string `description:"Key:Value tag to be set on all the spans." export:"true"`
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Debug bool `description:"Enable DataDog debug." export:"true"`
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}
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// Setup sets up the tracer
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func (c *Config) Setup(serviceName string) (opentracing.Tracer, io.Closer, error) {
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tag := strings.SplitN(c.GlobalTag, ":", 2)
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value := ""
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if len(tag) == 2 {
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value = tag[1]
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}
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tracer := ddtracer.New(
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datadog.WithAgentAddr(c.LocalAgentHostPort),
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datadog.WithServiceName(serviceName),
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datadog.WithGlobalTag(tag[0], value),
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datadog.WithDebugMode(c.Debug),
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)
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// Without this, child spans are getting the NOOP tracer
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opentracing.SetGlobalTracer(tracer)
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log.WithoutContext().Debug("DataDog tracer configured")
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return tracer, nil, nil
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}
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