Docker mongodb instance with custom network

docker-compose.yml

version: '3'

services:
  mongo:
    image: mongo
    restart: always
    ports:
      - 27017:27017
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: example

networks:
  default:
    driver: bridge
    ipam:
      config:
        - subnet: 172.16.57.0/24