Failed to log RabbitMQ in file

I'm trying to send RabbitMQ logs to both console and file, I'm using RabbitMQ Operator to run cluster and this definition.yaml:

apiVersion: rabbitmq.com/v1beta1
kind: RabbitmqCluster
metadata:
  name: rabbitmqcluster
spec:
  image: rabbitmq:3.8.9-management
  replicas: 3
  imagePullSecrets:
  - name: rabbitmq-cluster-registry-access
  service:
    type: ClusterIP
  persistence:
    storageClassName: rbd
    storage: 20Gi
  resources:
    requests:
      cpu: 2000m
      memory: 6Gi
    limits:
      cpu: 2000m
      memory: 6Gi
  rabbitmq:
    additionalConfig: |
      log.console = true
      log.console.level = debug
      log.file = rabbit.log
      log.dir = /var/lib/rabbitmq/
      log.file.level = debug
      log.file = true
    additionalPlugins:
      - rabbitmq_top
      - rabbitmq_shovel
      - rabbitmq_management
      - rabbitmq_peer_discovery_k8s
      - rabbitmq_stomp
      - rabbitmq_prometheus
      - rabbitmq_peer_discovery_consul

after running on the cluster, this is console logs:

  ##  ##      RabbitMQ 3.8.9
  ##  ##
  ##########  Copyright (c) 2007-2020 VMware, Inc. or its affiliates.
  ######  ##
  ##########  Licensed under the MPL 2.0. Website: https://rabbitmq.com
  Doc guides: https://rabbitmq.com/documentation.html
  Support:    https://rabbitmq.com/contact.html
  Tutorials:  https://rabbitmq.com/getstarted.html
  Monitoring: https://rabbitmq.com/monitoring.html
  Logs: <stdout>
  Config file(s): /etc/rabbitmq/rabbitmq.conf
                  /etc/rabbitmq/conf.d/default_user.conf
  Starting broker...2021-07-18 07:22:26.203 [info] <0.272.0>
 node           : rabbit@rabbitmqcluster-server-0.rabbitmqcluster-nodes.rabbitmq-system
 home dir       : /var/lib/rabbitmq
 config file(s) : /etc/rabbitmq/rabbitmq.conf
                : /etc/rabbitmq/conf.d/default_user.conf
 cookie hash    : shP20jU/vTqNF4lW9g0tqg==
 log(s)         : <stdout>
 database dir   : /var/lib/rabbitmq/mnesia/rabbit@rabbitmqcluster-server-0.rabbitmqcluster-nodes.rabbitmq-system

and after starting the cluster there is no log file in the path I specified and the crash.log is in the directory:

$ls
crash.log

what should I do?