1. 使用docker安装mongo

docker-compose.yml文件内容：

version: '3.1'  services:  mongo:    container_name: mongo    image: mongo    network_mode: host    restart: always    volumes:      - ./data:/data/db    environment:      MONGO_INITDB_ROOT_USERNAME: root      MONGO_INITDB_ROOT_PASSWORD: 123456a

启动容器

docker-compose up -d

2. 新建数据库，添加普通用户

进入容器，进入mongo命令行：

docker exec -it mongo bash mongo

新建数据库，添加普通用户

use admin;db.auth('root','123456a');use bruce;db.createUser({ user: 'bruce', pwd: 'a123456', roles: [{role: 'readWrite',db: 'bruce'}]});