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TLDR: Tracing has been added for A1 Policy Management Service. By default tracing is disabled. To enable it change there are two ways:

A) System Property

Change the flag otel.sdk.disabled to false in the application.yaml (New Delhi) 

otel:
  sdk:     
    disabled: ${ONAP_SDK_DISABLED:false}
    south: ${ONAP_TRACING_SOUTHBOUND:true}   
  instrumentation:
    spring-webflux:
      enabled: ${OTEL_INSTRUMENTATION_SPRING_WEBFLUX_ENABLED:true}true

1. onap.sdk.disabled: enable/disable tracing all toghether
2. onap.tracing.south: if ONAP_SDK_DISABLED is false then we can enable/disable southbound tracing
3. otel.instrumentation.spring-webflux.enabled: if ONAP_SDK_DISABLED is false we can enable/disable northbound tracing

B) Enviroment Variable

Have the environment variablesOR have the environment variables (example in the docker-compose.yaml below), this way you don't need to change the application.yaml and rebuild the docker image

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1. ONAP_SDK_DISABLED: enable/disable tracing all toghether
2. ONAP_TRACING_SOUTHBOUND: if ONAP_SDK_DISABLED is false then we can enable/disable southbound tracing
3. OTEL_INSTRUMENTATION_SPRING_WEBFLUX_ENABLED: if ONAP_SDK_DISABLED is false we can enable/disable northbound tracing

Possible Combinations 

So we can have the following combinations:

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