[cmd/opampsupervisor] config not updated in opampSupervisor/opampExtension when processor pipeline already exists

Component(s)

cmd/opampsupervisor

What happened?

Description

I am using the OpenTelemetry Collector Contrib cmd/opampsupervisor to run the Supervisor and the OTel Collector. https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/cmd/opampsupervisor

To add additional configurations to the OTel Collector, I set the following in extraconfig.yaml:

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317

exporters:
  debug:

  otlp:
    endpoint: localhost:4317
    tls:
      insecure: true

processors:
  batch:

service:
  pipelines:
    traces:
      receivers: [otlp]
      exporters: [debug, otlp]
    metrics:
      receivers: [otlp]
      processors: [batch]
      exporters: [otlp]    
  telemetry:
    logs:
    ...

With this configuration, I send the following config via OpAMP from the OpAMP Backend: CleanShot 2024-11-17 at 14 57 00

processors:
  batch:
  attributes:
    actions:
      - key: hoge
        value: piyo
        action: insert
service:
  pipelines:
    traces:
      processors:
        - attributes

This works perfectly. CleanShot 2024-11-17 at 14 53 04

Next, I update the extraconfig.yaml to include the batch processor in the trace pipeline beforehand:

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317

exporters:
  debug:

  otlp:
    endpoint: localhost:4317
    tls:
      insecure: true

processors:
  batch:

service:
  pipelines:
    traces:
      receivers: [otlp]
      processors: [batch] # <==================== add
      exporters: [debug, otlp]
    metrics:
      receivers: [otlp]
      processors: [batch]
      exporters: [otlp]    
  telemetry:
    logs:
    ...

However, when I send the same config from the OpAMP Backend, the config (effective.yaml) is not updated. Is this behavior as intended?

Steps to Reproduce

Experimenting with the supervisor https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/cmd/opampsupervisor#experimenting-with-the-supervisor

Expected Result

In both cases, the config is updated.

Actual Result

In the following case, the config is not updated, and the OTel Collector is not restarted.

open-telemetry / opentelemetry-collector-contrib