Cannot parse env var JAEGER_AGENT_PORT

Traefik Traefik v2
1

There are current deployed traefik args:

spec:
      containers:
      - args:
        - --global.checknewversion
        - --global.sendanonymoususage
        - --entryPoints.metrics.address=:9100/tcp
        - --entryPoints.traefik.address=:9000/tcp
        - --entryPoints.web.address=:8000/tcp
        - --entryPoints.websecure.address=:8443/tcp
        - --api.dashboard=true
        - --ping=true
        - --metrics.prometheus=true
        - --metrics.prometheus.entrypoint=metrics
        - --providers.kubernetescrd
        - --providers.kubernetesingress
        - --log.level=DEBUG
        - --accesslog=true
        - --accesslog.fields.defaultmode=keep
        - --accesslog.fields.headers.defaultmode=drop
        - --tracing.jaeger=true
        - --tracing.jaeger.samplingServerURL=http://jaeger-agent.default.svc:5778/sampling
        - --tracing.jaeger.localAgentHostPort=jaeger-agent.default.svc:6831
        image: traefik:2.5.6

As you can see, tracing is enabled using jaeger.

Dashboard:

image
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I'm currently accessing to several exposed services.

Problem is that when I'm trying to get information of tracing into jaeger, it's only showing me one service:

image

Several entrypoints and routers are configured:

image
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But anyone of them is listed on jaeger listbox. Obviously, I'm reaching correctly to exposes services.

I've took a look on logs:

evel=warning msg="Unable to create tracer: cannot obtain reporter config from env: cannot parse env var JAEGER_AGENT_PORT=udp://10.43.85.36:5775: strconv.ParseInt: parsing "udp://10.43.85.36:5775": invalid syntax"

I don't know why this env variable JAEGER_AGENT_PORT is present.

By other hand, ip a port are correct.

Any ideas?

2

Hello @jeusdi and thanks for your interest in Traefik,

As explained in the Kubernetes documentation, some environment variables are injected by the kubelet in scheduled pods.

Therefore, if a service named jaeger-agent exists, the JAEGER_AGENT_PORT env variable will be injected by the kubelet into the Traefik pod, which will cause the parsing error.

Hope this helps!