traefik/docs/content/observability/tracing/jaeger.md

Jaeger

To enable the Jaeger:

[tracing]
  [tracing.jaeger]

--tracing
--tracing.jaeger

!!! warning Traefik is only able to send data over the compact thrift protocol to the Jaeger agent.

samplingServerURL

Required, Default="http://localhost:5778/sampling"

Sampling Server URL is the address of jaeger-agent's HTTP sampling server.

[tracing]
  [tracing.jaeger]
    samplingServerURL = "http://localhost:5778/sampling"

--tracing
--tracing.jaeger.samplingServerURL="http://localhost:5778/sampling"

samplingType

Required, Default="const"

Sampling Type specifies the type of the sampler: const, probabilistic, rateLimiting.

[tracing]
  [tracing.jaeger]
    samplingType = "const"

--tracing
--tracing.jaeger.samplingType="const"

samplingParam

Required, Default=1.0

Sampling Param is a value passed to the sampler.

Valid values for Param field are:

• for const sampler, 0 or 1 for always false/true respectively
• for probabilistic sampler, a probability between 0 and 1
• for rateLimiting sampler, the number of spans per second

[tracing]
  [tracing.jaeger]
    samplingParam = 1.0

--tracing
--tracing.jaeger.samplingParam="1.0"

localAgentHostPort

Required, Default="127.0.0.1:6831"

Local Agent Host Port instructs reporter to send spans to jaeger-agent at this address.

[tracing]
  [tracing.jaeger]
    localAgentHostPort = "127.0.0.1:6831"

--tracing
--tracing.jaeger.localAgentHostPort="127.0.0.1:6831"

gen128Bit

Optional, Default=false

Generate 128-bit trace IDs, compatible with OpenCensus.

[tracing]
  [tracing.jaeger]
    gen128Bit = true

--tracing
--tracing.jaeger.gen128Bit

propagation

Required, Default="jaeger"

Set the propagation header type. This can be either:

• jaeger, jaeger's default trace header.
• b3, compatible with OpenZipkin

[tracing]
  [tracing.jaeger]
    propagation = "jaeger"

--tracing
--tracing.jaeger.propagation="jaeger"

traceContextHeaderName

Required, Default="uber-trace-id"

Trace Context Header Name is the http header name used to propagate tracing context. This must be in lower-case to avoid mismatches when decoding incoming headers.

[tracing]
  [tracing.jaeger]
    traceContextHeaderName = "uber-trace-id"

--tracing
--tracing.jaeger.traceContextHeaderName="uber-trace-id"