Change the default Rabbitmq username and password

[zagrosbingol]

Hello,

Hope all is well?

A great idea from a security wise perspective is to change the rabbitmq default username and password located in:
docker-compose.yml

See the following code:

version: '3'

services:
  db:
    image: postgres:latest
    restart: always
    command: "-c max_connections=512"
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: postgres
    volumes:
      - db_data:/var/lib/postgresql/data
  pgbouncer:
    image: edoburu/pgbouncer:latest
    environment:
      - DB_HOST=db
      - DB_PORT=5432
      - DB_USER=postgres
      - DB_PASSWORD=postgres
      - AUTH_TYPE=scram-sha-256
      - DEFAULT_POOL_SIZE=512
      - MAX_CLIENT_CONN=10000
      - POOL_MODE=transaction
  rabbitmq:
    image: rabbitmq:3-management-alpine
    restart: always
    volumes:
      - mq_data:/var/lib/rabbitmq/
    healthcheck:
      test: rabbitmq-diagnostics -q ping
      interval: 30s
      timeout: 60s
      retries: 5
  web:
    build: .
    restart: always
    image: ghcr.io/bitthebyte/monitorizer:main
    command: /webserver-entrypoint.sh
    environment:
      POSTGRES_HOST: pgbouncer
      CELERY_BROKER_URL: 'amqp://guest:guest@rabbitmq:5672'
    ports:
      - "8000:8000"
    depends_on:
      - db
      - rabbitmq

  beat_worker:
    restart: always
    image: ghcr.io/bitthebyte/monitorizer:main
    command: celery -A monitorizer.server beat -l info
    depends_on:
      - db
      - rabbitmq
    environment:
      CELERY_BROKER_URL: 'amqp://guest:guest@rabbitmq:5672'
      POSTGRES_HOST: pgbouncer

  report_worker:
    restart: always
    image: ghcr.io/bitthebyte/monitorizer:main
    command: celery -A monitorizer.server worker -Q reports -l info
    depends_on:
      - db
      - rabbitmq
    environment:
      CELERY_BROKER_URL: 'amqp://guest:guest@rabbitmq:5672'
      POSTGRES_HOST: pgbouncer

  job_worker:
    restart: always
    privileged: true
    image: ghcr.io/bitthebyte/monitorizer:main
    command: celery -A monitorizer.server worker -Q default -l info
    depends_on:
      - db
      - rabbitmq
    environment:
      CELERY_BROKER_URL: 'amqp://guest:guest@rabbitmq:5672'
      POSTGRES_HOST: pgbouncer
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /home/.monitorizer:/home/.monitorizer:shared

volumes:
  db_data:
  mq_data:

Is it possible to randomize or do anything that can be changed or add a note in readme.md to let users know that a change of password shall be made in order to avoid attacks.

Thank you for all youre work and warm regards,

[zagrosbingol]

Reference:
https://book.hacktricks.xyz/network-services-pentesting/15672-pentesting-rabbitmq-management