Node.js Can'；t从docker compose服务向mongoDB进行身份验证 我想做什么

我正在尝试设置docker compose定义，其中有一个mongoDB容器和一个连接到它的nodeJS容器

版本：“3.9”
服务：
事件数据库：
图片：mongo
卷数：
-db音量：/data/db
环境：
MONGO_INITDB_ROOT_用户名：$SANDBOX_DB_用户
MONGO_INITDB_ROOT_密码：$SANDBOX_DB_PASS
MONGO_INITDB_数据库：sandboxdb
应用程序：
图像：节点：15.12.0
用户：节点
工作目录：/home/node/app
卷数：
-./：/home/node/app:ro
环境：
MDB_连接：mongodb://$SANDBOX_数据库用户：$SANDBOX_数据库_PASS@events-db:27017/沙盒db
命令：node myapp
取决于：
-事件数据库
卷数：
db音量：

以及声明凭据的

.env

文件（计划在将其部署到生产环境时使用适当的env变量）：

最后，我的nodejs脚本，

myapp.js

只是尝试连接、获取对集合的引用并插入文档：

require（'dotenv'）.config（）
const{MongoClient}=require（'mongodb'）
异步函数main（）{
console.log（'正在连接'）
const client=new MongoClient（process.env.MDB_连接{
连接超时：10000，
useUnifiedTopology：正确，
})
等待client.connect（）
const db=client.db（）
const events=db.collection（'events'）
console.log（'插入事件'）
等待事件发生({
键入：“foo”，
时间戳：新日期（），
})
console.log（'Done'））
进程。退出（0）
}
if（require.main==模块）{
main（）
}

结果 当我运行

docker compose config

时，我会看到以下输出，因此我希望它能正常工作：

$ docker-compose config
services:
  app:
    command: node myapp
    depends_on:
      events-db:
        condition: service_started
    environment:
      MDB_CONNECTION: mongodb://myuser:myp4ss@events-db:27017/sandboxdb
    image: node:15.12.0
    user: node
    volumes:
    - C:\workspace\dcsandbox:/home/node/app:ro
    working_dir: /home/node/app
  events-db:
    environment:
      MONGO_INITDB_DATABASE: sandboxdb
      MONGO_INITDB_ROOT_PASSWORD: myp4ss
      MONGO_INITDB_ROOT_USERNAME: myuser
    image: mongo
    volumes:
    - db-volume:/data/db:rw
version: '3.9'
volumes:
  db-volume: {}

但是，当我运行

docker compose up

时，我发现我的节点容器无法连接到mongoDB以插入事件：

events-db_1  | {"t":{"$date":"2021-04-07T13:57:36.793+00:00"},"s":"I",  "c":"NETWORK",  "id":23016,   "ctx":"listener","msg":"Waiting for connections","attr":{"port":27017,"ssl":"off"}}
app_1        | Connecting
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.811+00:00"},"s":"I",  "c":"NETWORK",  "id":22943,   "ctx":"listener","msg":"Connection accepted","attr":{"remote":"172.27.0.3:34164","connectionId":1,"connectionCount":1}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.816+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn1","msg":"client metadata","attr":{"remote":"172.27.0.3:34164","client":"conn1","doc":{"driver":{"name":"nodejs","version":"3.6.6"},"os":{"type":"Linux","name":"linux","architecture":"x64","version":"4.19.128-microsoft-standard"},"platform":"'Node.js v15.12.0, LE (unified)"}}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.820+00:00"},"s":"I",  "c":"NETWORK",  "id":22943,   "ctx":"listener","msg":"Connection accepted","attr":{"remote":"172.27.0.3:34166","connectionId":2,"connectionCount":2}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.822+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn2","msg":"client metadata","attr":{"remote":"172.27.0.3:34166","client":"conn2","doc":{"driver":{"name":"nodejs","version":"3.6.6"},"os":{"type":"Linux","name":"linux","architecture":"x64","version":"4.19.128-microsoft-standard"},"platform":"'Node.js v15.12.0, LE (unified)"}}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.822+00:00"},"s":"I",  "c":"ACCESS",   "id":20251,   "ctx":"conn2","msg":"Supported SASL mechanisms requested for unknown user","attr":{"user":"myuser@sandboxdb"}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.823+00:00"},"s":"I",  "c":"ACCESS",   "id":20249,   "ctx":"conn2","msg":"Authentication failed","attr":{"mechanism":"SCRAM-SHA-256","principalName":"myuser","authenticationDatabase":"sandboxdb","client":"172.27.0.3:34166","result":"UserNotFound: Could not find user \"myuser\" for db \"sandboxdb\""}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.824+00:00"},"s":"I",  "c":"ACCESS",   "id":20249,   "ctx":"conn2","msg":"Authentication failed","attr":{"mechanism":"SCRAM-SHA-1","principalName":"myuser","authenticationDatabase":"sandboxdb","client":"172.27.0.3:34166","result":"UserNotFound: Could not find user \"myuser\" for db \"sandboxdb\""}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.826+00:00"},"s":"I",  "c":"NETWORK",  "id":22944,   "ctx":"conn1","msg":"Connection ended","attr":{"remote":"172.27.0.3:34164","connectionId":1,"connectionCount":1}}
app_1        | /home/node/app/node_modules/mongodb/lib/cmap/connection.js:268
app_1        |           callback(new MongoError(document));
app_1        |                    ^
app_1        |
app_1        | MongoError: Authentication failed.
app_1        |     at MessageStream.messageHandler (/home/node/app/node_modules/mongodb/lib/cmap/connection.js:268:20)
app_1        |     at MessageStream.emit (node:events:369:20)
app_1        |     at processIncomingData (/home/node/app/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
app_1        |     at MessageStream._write (/home/node/app/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
app_1        |     at writeOrBuffer (node:internal/streams/writable:395:12)
app_1        |     at MessageStream.Writable.write (node:internal/streams/writable:340:10)
app_1        |     at Socket.ondata (node:internal/streams/readable:750:22)
app_1        |     at Socket.emit (node:events:369:20)
app_1        |     at addChunk (node:internal/streams/readable:313:12)
app_1        |     at readableAddChunk (node:internal/streams/readable:288:9) {
app_1        |   ok: 0,
app_1        |   code: 18,
app_1        |   codeName: 'AuthenticationFailed'
app_1        | }
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.832+00:00"},"s":"I",  "c":"NETWORK",  "id":22944,   "ctx":"conn2","msg":"Connection ended","attr":{"remote":"172.27.0.3:34166","connectionId":2,"connectionCount":0}}
dcsandbox_app_1 exited with code 1

我已将全部输出放在

---

这个回购协议的示例代码：

经过进一步的挖掘，我终于找到了答案。问题是

MONGO\u INITDB\u ROOT\u用户名

和

MONGO\u INITDB\u ROOT\u密码

变量只是设置ROOT用户的凭据，

MONGO\u INITDB\u数据库

只是为

/docker entrypoint INITDB.d

中的脚本设置初始数据库

默认情况下，根用户被添加到

admin

数据库中，因此通过删除连接字符串的

/sandboxdb

部分，我能够让我的节点应用程序以根用户身份对

admin

数据库进行身份验证

---

虽然这并不能完全实现我最初想要的（为我的数据库创建一个单独的非root用户，并使用它进行身份验证），我认为这使我走上了正确的道路，可以使用init脚本来设置我想要的用户帐户。

当我在节点脚本中记录

process.env.MDB_connection

时，尝试编写控制台连接字符串，我看到docker compose的以下输出：

app|u 1 |连接到mongodb://myuser:myp4ss@事件数据库：27017/sandboxdb

events-db_1  | {"t":{"$date":"2021-04-07T13:57:36.793+00:00"},"s":"I",  "c":"NETWORK",  "id":23016,   "ctx":"listener","msg":"Waiting for connections","attr":{"port":27017,"ssl":"off"}}
app_1        | Connecting
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.811+00:00"},"s":"I",  "c":"NETWORK",  "id":22943,   "ctx":"listener","msg":"Connection accepted","attr":{"remote":"172.27.0.3:34164","connectionId":1,"connectionCount":1}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.816+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn1","msg":"client metadata","attr":{"remote":"172.27.0.3:34164","client":"conn1","doc":{"driver":{"name":"nodejs","version":"3.6.6"},"os":{"type":"Linux","name":"linux","architecture":"x64","version":"4.19.128-microsoft-standard"},"platform":"'Node.js v15.12.0, LE (unified)"}}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.820+00:00"},"s":"I",  "c":"NETWORK",  "id":22943,   "ctx":"listener","msg":"Connection accepted","attr":{"remote":"172.27.0.3:34166","connectionId":2,"connectionCount":2}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.822+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn2","msg":"client metadata","attr":{"remote":"172.27.0.3:34166","client":"conn2","doc":{"driver":{"name":"nodejs","version":"3.6.6"},"os":{"type":"Linux","name":"linux","architecture":"x64","version":"4.19.128-microsoft-standard"},"platform":"'Node.js v15.12.0, LE (unified)"}}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.822+00:00"},"s":"I",  "c":"ACCESS",   "id":20251,   "ctx":"conn2","msg":"Supported SASL mechanisms requested for unknown user","attr":{"user":"myuser@sandboxdb"}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.823+00:00"},"s":"I",  "c":"ACCESS",   "id":20249,   "ctx":"conn2","msg":"Authentication failed","attr":{"mechanism":"SCRAM-SHA-256","principalName":"myuser","authenticationDatabase":"sandboxdb","client":"172.27.0.3:34166","result":"UserNotFound: Could not find user \"myuser\" for db \"sandboxdb\""}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.824+00:00"},"s":"I",  "c":"ACCESS",   "id":20249,   "ctx":"conn2","msg":"Authentication failed","attr":{"mechanism":"SCRAM-SHA-1","principalName":"myuser","authenticationDatabase":"sandboxdb","client":"172.27.0.3:34166","result":"UserNotFound: Could not find user \"myuser\" for db \"sandboxdb\""}}
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.826+00:00"},"s":"I",  "c":"NETWORK",  "id":22944,   "ctx":"conn1","msg":"Connection ended","attr":{"remote":"172.27.0.3:34164","connectionId":1,"connectionCount":1}}
app_1        | /home/node/app/node_modules/mongodb/lib/cmap/connection.js:268
app_1        |           callback(new MongoError(document));
app_1        |                    ^
app_1        |
app_1        | MongoError: Authentication failed.
app_1        |     at MessageStream.messageHandler (/home/node/app/node_modules/mongodb/lib/cmap/connection.js:268:20)
app_1        |     at MessageStream.emit (node:events:369:20)
app_1        |     at processIncomingData (/home/node/app/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
app_1        |     at MessageStream._write (/home/node/app/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
app_1        |     at writeOrBuffer (node:internal/streams/writable:395:12)
app_1        |     at MessageStream.Writable.write (node:internal/streams/writable:340:10)
app_1        |     at Socket.ondata (node:internal/streams/readable:750:22)
app_1        |     at Socket.emit (node:events:369:20)
app_1        |     at addChunk (node:internal/streams/readable:313:12)
app_1        |     at readableAddChunk (node:internal/streams/readable:288:9) {
app_1        |   ok: 0,
app_1        |   code: 18,
app_1        |   codeName: 'AuthenticationFailed'
app_1        | }
events-db_1  | {"t":{"$date":"2021-04-07T13:57:38.832+00:00"},"s":"I",  "c":"NETWORK",  "id":22944,   "ctx":"conn2","msg":"Connection ended","attr":{"remote":"172.27.0.3:34166","connectionId":2,"connectionCount":0}}
dcsandbox_app_1 exited with code 1