What is the recommended way to overwrite the log level for Apache NiFi?

[turbolocust]

I could not find a documented way for the operator which explains how to change the log level of Apache NiFi. For the log level to be changed, the logback.xml file needs to be changed. Technically I can achieve that, but I'm specifically asking for the recommended way this should be done, so that my changes won't break any future operator updates.

Some background: the file in its original location is merely a link, see entrypoint args:
ln -sf /stackable/log_config/logback.xml /stackable/nifi/conf/logback.xml

The log_config directory is populated from a ConfigMap named nifi-cluster-node-default. So, to solve my problem I can use podOverrides to mount a different ConfigMap with an updated logback.xml file. Is there any better (recommended) way in how this can be achieved?

[maltesander]

Hi,
please have a look here https://docs.stackable.tech/home/stable/concepts/logging/.
You should be able to do something like this:

nodes:
  roleGroups:
    default:
      replicas: 1
      config:
        logging:
          enableVectorAgent: true
          containers:
            nifi:
              console:
                level: INFO
              file:
                level: DEBUG
              loggers:
                ROOT:
                  level: DEBUG

[turbolocust]

Thanks a lot! I totally missed that part of the documentation. In my case, I disabled the Vector agent.