Add `enabled` config for internal signals

[outsinre]

Component(s)

1. Internal Signals.
2. Collector Version: Docker container 1.42.0.

Is your feature request related to a problem? Please describe.

I can use configure internal metrics as follows:

services:
  telemetry:
    metrics:
      level: detailed
      readers:
      - pull:
          exporter:
            prometheus:
              host: '0.0.0.0'
              port: 8888
      - periodic:
          exporter:
            otlp:
              protocol: http/protobuf
              temporality_preference: cumulative
              endpoint: http://127.0.0.1:4318
              headers:
                Authorization: "Basic foobar"

But sometimes I want to disable internal metrics temporarily. Is there an option like enabled: false to do that?

Without this option, I had to remove that config block or comment out the whole block - difficult to maintain the config.

Describe the solution you'd like

An configuration option like enabled: false to disable internal signals.

Describe alternatives you've considered

Remove that config block or comment out the whole block

Additional context

This requirement also applies to other components, like receivers, exporters, etc.

Tip

_{React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it. Learn more here.}

[Syedowais312]

You can already disable internal metrics without removing the config block by setting

service:
  telemetry:
    metrics:
      level: none

The metrics.level field acts as the on//off switch

• none -> disables the internal matrics completelety
• basic / detailed -> enables them

Even if readers/exportes are configed, no internal metrics are produced when the level is none

So while an explicit enabled: false flag might improve ergonomics, this functionality to temporarily disable internal signals already exists today via metrics.level: none