create a replacement for DeclarativeConfigPropertiesBridge for extensions and distros

[zeitlinger]

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

DeclarativeConfigPropertiesBridge bridges yaml files to ConfigProperties.
We want to bridge the other way round - to make declarative config the default.

Describe the solution you'd like

• Create a replacement for DeclarativeConfigPropertiesBridge for extensions and distros.
• Take

  opentelemetry-java-instrumentation/declarative-config-bridge/src/main/java/io/opentelemetry/instrumentation/config/bridge/ConfigPropertiesBackedConfigProvider.java

  Line 19 in 92475f1

  public final class ConfigPropertiesBackedConfigProvider implements ConfigProvider {

  as a starting point.
• Add some customization logic like in DeclarativeConfigPropertiesBridge to allow extensions and distros to more freedom to choose a more idiomatic yaml file representation
• Also deprecate DeclarativeConfigPropertiesBridge and remove after a while (or in 3.0)

Where:

• SDK: A PoC is here: allow to set ConfigProvider without declarative config opentelemetry-java#7960
  • not clear if it's a fit - see Stabilize ConfigProvider opentelemetry-java#7961
• contrib: probably a good place - at least for now

Describe alternatives you've considered

No response

Additional context

No response

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[aviralgarg05]

I would like to solve this issue, please assign me