Enable debug

[tagathi]

Hello,
I have v2.10 data-prepper running on kubernetes and I want to enable debug.
From what I have read, I understand that I need to configure log4j.
So what I did is create a configmap which contains the log4j2.properties:

data:
  log4j2.properties: |+
    #
    # Copyright OpenSearch Contributors
    # SPDX-License-Identifier: Apache-2.0
    #

    status = error
    dest = err
    name = PropertiesConfig

    property.filename = log/data-prepper/data-prepper.log

    appender.console.type = Console
    appender.console.name = STDOUT
    appender.console.layout.type = PatternLayout
    appender.console.layout.pattern = %d{ISO8601} [%t] %-5p %40C - %m%n

    appender.rolling.type = RollingFile
    appender.rolling.name = RollingFile
    appender.rolling.fileName = ${filename}
    appender.rolling.filePattern = logs/data-prepper.log.%d{MM-dd-yy-HH}-%i.gz
    appender.rolling.layout.type = PatternLayout
    appender.rolling.layout.pattern = %d{ISO8601} [%t] %-5p %40C - %m%n
    appender.rolling.policies.type = Policies
    appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
    appender.rolling.policies.time.interval = 1
    appender.rolling.policies.time.modulate = true
    appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
    appender.rolling.policies.size.size=100MB
    appender.rolling.strategy.type = DefaultRolloverStrategy
    appender.rolling.strategy.max = 168

    rootLogger.level = debug
    rootLogger.appenderRef.stdout.ref = STDOUT
    rootLogger.appenderRef.file.ref = RollingFile

    logger.pipeline.name = org.opensearch.dataprepper.pipeline
    logger.pipeline.level = debug

    logger.parser.name = org.opensearch.dataprepper.parser
    logger.parser.level = debug

    logger.plugins.name = org.opensearch.dataprepper.plugins
    logger.plugins.level = debug

kind: ConfigMap
metadata:
  name: log4j2-properties
  namespace: cv-data-prepper-dev

and have mounted it in my deployment by using:

    spec:
      containers:
      ......
      ......
        volumeMounts:
        - mountPath: /usr/share/data-prepper/config/log4j2.properties
          name: log4j2-properties
          subPath: log4j2.properties
           .......
           .......
      volumes:
      - configMap:
          defaultMode: 420
          items:
          - key: log4j2.properties
            path: log4j2.properties
          name: log4j2-properties
        name: log4j2-properties

I don't seem to get any debug logs.
I am rading that I need to run the data-prepper with the -Dlog4j.configurationFile option, but this is valid for versions before 2.
Can you help me with enabling debug on k8s?