Setting the logging level for one replica to DEBUG

Set the logging level for one replica to DEBUG if you want to avoid restarting the microservice.

1. Identify the name of the pod for which you need to change the logging level. Display a list of all pods by running the following command:

   oc get pods -n <cp4na_namespace>
   

   <cp4na_namespace> is the namespace where IBM® Cloud Pak for Network Automation is installed.

   The names of the IBM Cloud Pak for Network Automation pods begin with cp4na-o.

2. Get the port for the application container from the details of the pod. Run the following command to get the pod details:

   oc get pods <pod_name> -o=jsonpath="{.spec.containers[*].ports[*].containerPort}"
   

   <pod_name> is the name of the pod that you chose in step 1.

   For example, run a command like this to get the port for apollo:

   oc get pods cp4na-o-apollo-7567d7f966-h5mc6 -o=jsonpath="{.spec.containers[*].ports[*].containerPort}"
   

   The following output is displayed:

   8282

3. To access the command line of the pod, run this command:

   oc exec -it <pod_name> -- bash
   

   For example, run a command like this to access the command line of apollo:

   oc exec -it cp4na-o-apollo-7567d7f966-h5mc6 -- bash
   

4. To set the logging level for the pods, you can use a curl command from the command line of the pod.
   • To set the logging level for the nimrod or ishtar pods, use a curl command with an access token. For more information about how to get an access token, see Authenticating REST API requests.

     For example, run a command like this:

     curl -k -X POST -H "Content-Type: application/json" -H "Authorization: Bearer <access_token>" -d '{"configuredLevel": "DEBUG"}' \
     https://localhost:<port>/management/loggers/<logger_name>/
     

   • To set the logging level for other pods, use a curl command without an access token.

     For example, run a command like this:

     curl -k -X POST -H "Content-Type: application/json" -d '{"configuredLevel": "DEBUG"}' \
     https://localhost:<port>/management/loggers/<logger_name>/
     

5. To verify the current logging level, run a curl command like this:

   curl -k https://localhost:<port>/management/loggers/<logger_name>/
   

   <port> is the port value that you got in step 2.

   <logger_name> is the name of the logger. For example, you might configure com.accantosystems as the main logger for debug mode.

   For example, run a curl command like this to view the current logging level for the logger com.accantosystems:

   curl -k https://localhost:8282/management/loggers/com.accantosystems/
   

   The following output is displayed:

   {"configuredLevel":"INFO","effectiveLevel":"DEBUG"}