MongoError：身份验证失败，docker-compose

Question

我正在尝试构建此应用程序https://github.com/dwgebler/node-express-example 。 我想用它作为制作 Mongodb http 快递服务器的模板。 我试图在这个 repo 中构建 docker 撰写文件，它看起来像这样（稍作修改）：

version: "3.8"
services:
  database:
    image: mongo
    container_name: mongo-database
    restart: always
    volumes:
      - "mongodata:/data/db"
    ports:
      - "27017:27017"
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: example
  mongo-express:    
    image: mongo-express
    container_name: mongo-express
    restart: always
    ports:
      - "8081:8081"
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: example
      ME_CONFIG_MONGODB_SERVER: mongo-database
  web:
    image: node:16-alpine
    container_name: node-server
    restart: always
    user: "node"
    ports:
      - "9443:443"
    volumes:
      - "./app:/var/app/"
    working_dir: "/var/app"
    environment:
      NODE_ENV: dev
      DB_USER: root
      DB_PASSWORD: example
      DB_NAME: mongo-database
    command: "./wait.sh mongo-database 27017 'npm start'"
volumes:
  mongodata:

但是当我在与 docker-compose.yml 文件相同的目录中运行命令 docker compose up -d 时，我在“节点服务器”容器日志中得到了这个：

Mongo started
MongoError: Authentication failed.
    at MessageStream.messageHandler (/var/app/node_modules/mongodb/lib/cmap/connection.js:272:20)
    at MessageStream.emit (node:events:513:28)
    at processIncomingData (/var/app/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
    at MessageStream._write (/var/app/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
    at writeOrBuffer (node:internal/streams/writable:391:12)
    at _write (node:internal/streams/writable:332:10)
    at MessageStream.Writable.write (node:internal/streams/writable:336:10)
    at Socket.ondata (node:internal/streams/readable:754:22)
    at Socket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:315:12) {
  ok: 0,
  code: 18,
  codeName: 'AuthenticationFailed'
}

为什么我会收到 MongoError：身份验证失败？ 请注意，我设置

DB_USER: root
DB_PASSWORD: example
DB_NAME: mongo-database

在 docker 文件的web部分中，它与数据库部分中的MONGO_INITDB_ROOT_USERNAME 、 MONGO_INITDB_ROOT_PASSWORD匹配，我将DB_NAME设置为与数据库部分名称匹配的mongo-database 。 那么为什么不进行身份验证呢？

Answer 1

MONGO_INITDB_ROOT_USERNAME和PASSWORD在 Mongo 管理数据库中创建一个用户。 您的连接字符串尝试针对mongo-database数据库进行身份验证，但找不到用户。 Mongo 日志中有消息告诉您这一点。

要修复它，您需要通过将authSource=admin添加到您的连接字符串来对 admin 数据库进行身份验证，如下所示

const uri = `mongodb://${process.env.DB_USER}:${process.env.DB_PASSWORD}@mongo-database/${process.env.DB_NAME}?retryWrites=true&writeConcern=majority&authSource=admin`;