MongoDB和Docker通过docker-compose auth错误而不是初始化数据库 [英] MongoDB and Docker via docker-compose auth error and not initalizing db

问题描述

我是Docker的新手，并且已阅读 Mongo Docker Docs 。
我需要一些帮助来设置一个简单的应用程序。

I am new to Docker and I have read the Mongo Docker Docs. I need some help setting up a simple application.

我想要一个本地mongodb来转储/使用名为 my_test_db的数据库
并进行写操作到< project-dir> / mongo / my_test_db

I want a local mongodb that dumps / uses a database named "my_test_db" and writes to <project-dir>/mongo/my_test_db

这是我的简单项目：

# project structure
<project-dir>/
-- .env
-- docker-compose.yml
-- mongo/
-- + -- my_test_db/

.env 文件：

# <project>/.env
MONGO_INITDB_ROOT_USERNAME=test_user
MONGO_INITDB_ROOT_PASSWORD=test_pwrd
MONGO_INITDB_DATABASE=my_test_db
MONGO_DATA_DIR=/mongo/my_test_db
MONGO_LOG_FILE=/mongo/mongodb.log

我尝试 docker compose ：

#docker-compose.yml

version: '3'
services:
  mongodb:
    image: mongo:4.0

    # load env variables
    env_file:
      - .env 

    # map data_dir to host <project>/<data_dir>
    volumes:
      - ".${MONGO_DATA_DIR}:${MONGO_DATA_DIR}"

    expose:
      - 27017

    # set env vars with loaded vars (appears to be necessary for the user to be created, despite loading them with env_file)
    environment:
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_DATABASE}
      MONGO_INITDB_DATABASE: ${MONGO_INITDB_DATABASE}

    # map ports
    ports:
        - 27017:27017
    command: "mongod --smallfiles"
    container_name: mongodb-test
# --logpath=.${MONGO_LOG_FILE} # when added to command fails

然后将其放入两个外壳

#shell-1
<project-dir>$ docker-compose up

# I see my user created
# I see "MongoDB starting : pid=1 port=27017 dbpath=/data/db 64-bit host=e19ea190b601" so my custom db isnt made on init...

#shell-2
# <project-dir>$ mongo 27017 --usernamne test_user --password test_pwrd # does fails to connect
<project-dir>$ mongo 27017 # connects



> db.getName()
# 27017 # so naming it didnt work

> show users
# Error: command usersInfo requires authentication

> use my_test_db
> db.myColl.insert({'name': 'test'})
# WriteCommandError({..., "codeName": "Unauthorized"})

我目前正在macOS上进行测试（文档表明这可能是相关的）

I am currently testing on macOS (as docs state that this might be relevant)

我在做什么错？我了解docker的概念，但个人不使用docker的概念，因为这也使我很难使用...但是我正在尝试学习。

What am I doing wrong? I understand the concept of docker but personally don't use it as it is a pain to get used too... but I'm trying to learn.

推荐答案

• 对于身份验证部分：您是否尝试添加-authenticationDatabase admin 以便能够登录？



• 关于 MONGO_INITDB_DATABASE 除非您在 / docker-entrypoint-下有一个脚本，否则它不会生效initdb.d / 如 docker-entrypoiny.sh ，因此您可以在 docker-entrypoint-initdb.d /

  • For the authentication part: have you tried to add --authenticationDatabase admin in order to be able to login ?

  • Regarding MONGO_INITDB_DATABASE it wont be effective unless you have a script under /docker-entrypoint-initdb.d/ as shown in the docker-entrypoiny.sh that is used in the mongodb image so you can have a bash script in docker-entrypoint-initdb.d/ with that said.

    使用root用户作为应用程序数据库的所有者不是安全的方法，因为它将能够控制其中的所有内容。 mongodb实例。

    Using the root user as an owner for your application db is not a security wise as it will have the ability to control everything in the mongodb instance.

    恕我直言，更好的方法是添加额外的变量，例如以下内容：

    IMHO a better approach would be adding extra variables like the following:

    
    
    • MONGO_APPLICATION_DATABASE
    
    
    • MONGO_APPLICATION_USERNAME
    
    
    • MONGO_APPLICATION_PASSWORD
    
    
    • MONGO_APPLICATION_DATABASE
    • MONGO_APPLICATION_USERNAME
    • MONGO_APPLICATION_PASSWORD

    然后添加一个bash脚本，该脚本将创建用户并使用环境变量将其分配给数据库（您需要将其挂载到docker-entrypoint-initdb.d）：

    Then add a bash script that will create the user and assign it to the database by using environment variables ( you need to mount it to docker-entrypoint-initdb.d):

    
    

    您可能需要根据需要更改用户角色。

    You might need to change the user role as you see fit.

    
    
    

    # initmongo/setup.sh
    mongo admin -u $MONGO_INITDB_ROOT_USERNAME -p $MONGO_INITDB_ROOT_PASSWORD --eval "db.getSiblingDB('$MONGO_APPLICATION_DATABASE').createUser({user: '$MONGO_APPLICATION_USERNAME', pwd: '$MONGO_APPLICATION_PASSWORD', roles: [{role: 'readWrite', db: '$MONGO_APPLICATION_DATABASE'}]});"
    

    在docker-compose.yml中将卷添加到当前卷列表中

    In the docker-compose.yml add a volume to your current list of volumes

    #docker-compose.yml
    volumes:
      - ".${MONGO_DATA_DIR}:${MONGO_DATA_DIR}"
      - "./initmongo/:/docker-entrypoint-initdb.d/"
    

    最后删除此变量 MONGO_INITDB_DATABASE ，因为不需要它

    And finally remove this variable MONGO_INITDB_DATABASE as there is no need for it

    要登录，请使用以下命令：

    In order to login use the following command:

    
    

    将变量替换为您的实际值

    replace the variables with your actual values

    
    
    

    docker exec -it container_name mongo -u "$MONGO_APPLICATION_USERNAME" -p "$MONGO_APPLICATION_PASSWORD" --authenticationDatabase "$MONGO_APPLICATION_DATABASE" "$MONGO_APPLICATION_DATABASE"
    

  
  

  • 对于 .env 文件，我不确定是什么引起了此问题。使用时是否有任何警告？还可以考虑检查此评论或此

  • For the .env file i am not sure what could cause this issue. do you have any warnings while using it ? Also Consider checking this comment or this

    这篇关于MongoDB和Docker通过docker-compose auth错误而不是初始化数据库的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！