Can the collector modify the service name?

[mogoman]

In my jaeger collector I have this processing pipeline:

spec:
  config:
    processors:
      attributes:
        actions:
          - key: environment
            value: test
            action: upsert
          - key: cluster
            value: my-cluster
            action: upsert

This nicely add tags to my traces...

In a similar way, Is there a way to modify the service name too? If I have two services with the same name from two different collectors, they get merged into the same service in my central cluster, so if the application is "foo" then I can add "prod-foo" and "test-foo" to make it easier to find in the jaeger UI...

edit: this was mentioned here https://github.com/orgs/jaegertracing/discussions/7179 can anyone give me an example how this looks in yaml?

[yurishkuro]

bad answer, Jaeger runs the same processors as OTEL collector.

[mogoman]

@yurishkuro is there a way to do this? I use the opentelemetry operator, but as far as I can see this just wraps jaeger.

[yurishkuro]

Gemini seems to think it's possible to do with attributes processor

processors:
  attributes:
    actions:
      # Use an OTTL statement to specifically target the 'resource' context
      # if your attributes processor supports it.
      - key: service.name
        action: update
        value: "my-prefix-{{resource.service.name}}" # Hypothetical direct template

  # If your attributes processor supports the full OTTL 'statements' syntax:
  attributes/with_ottl:
    statements:
      - context: resource
        set(attributes["service.name"], "my-prefix-" + attributes["service.name"])

service:
  pipelines:
    traces:
      receivers: [/* ... */]
      processors: [attributes/with_ottl] # Use the attributes processor with OTTL
      exporters: [/* ... */]

but it says it with caveats "if it supports it...". The alternative is to use resource processor, but it's currently not enable in Jaeger, we'd need to add it to components.go

[mogoman]

Sadly doesn't work (jaegertracing/jaeger:2.12.0)

- key: service.name just gets ignored
attributes/with_ottl doesn't seem to be correct (the yaml is wrong) and statements isn't a sub key.