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TLDR: Tracing has been added for A1 Policy Management Service. By default is disabled. To enable it change the flag in the application.yaml (More informations and tests at point 4)

management
  tracing
    enabled to true

or have an envaronment variable
ONAP_TRACING_ENABLED=true


Steps:

Adding Telemetry to a1policymanagementservice The application uses the WebClient from SpringWebflux to contact from the northbound interface a southbound interface (for the latter a A1-OSC simulator has been used).

...

<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>context-propagation</artifactId>
  </dependency>

3.When disabling Telemetry micrometer-tracing-bridge-otel would still try to export spans, so we decided to use one flag to rule them both (micrometer and opentelemetry)

The flag controlling it is

managment
  tracing
    enable: true

Example of polluted logs when disabling only opentelemetry beans:

...