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Error when creating simple mongo docker network

I am trying to create my first docker network with docker using mongo db and mongo express images.

I’ve pulled with docker pull mongo and docker pull mongo-express.

I’ve created a docker network with docker network create mongo-network, then I first launched the mongo docker with:

docker run -p 27017:27017 -d -e MONGO_INITDB_ROOT_USERNAME=admin -e MONGO_INITDB_ROOT_PASSWORD=mongoadmin --name mongodb --net mongo-network mongo

and similarly the mongo-express:

docker run -d -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin -e ME_CONFIG_MONGODB_ADMINPASSWORD=password --net mongo-network --name me -e ME_CONFIG_MONGODB_SERVER=mongodb mongo-express

The env variables are the ones indicated here:
https://hub.docker.com/_/mongo-express

But the logs is showing the following error:

Sun Sep 15 10:52:34 UTC 2024 retrying to connect to mongo:27017 (10/10)
/docker-entrypoint.sh: line 15: mongo: Try again
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
No custom config.js found, loading config.default.js
Welcome to mongo-express 1.0.2
------------------------


Could not connect to database using connectionString: mongodb://admin:****@mongodb:27017/"
/app/node_modules/mongodb/lib/cmap/connection.js:227
                    callback(new error_1.MongoServerError(document));
                             ^

MongoServerError: Authentication failed.
    at Connection.onMessage (/app/node_modules/mongodb/lib/cmap/connection.js:227:30)
    at MessageStream.<anonymous> (/app/node_modules/mongodb/lib/cmap/connection.js:60:60)
    at MessageStream.emit (node:events:517:28)
    at processIncomingData (/app/node_modules/mongodb/lib/cmap/message_stream.js:125:16)
    at MessageStream._write (/app/node_modules/mongodb/lib/cmap/message_stream.js:33:9)
    at writeOrBuffer (node:internal/streams/writable:392:12)
    at _write (node:internal/streams/writable:333:10)
    at Writable.write (node:internal/streams/writable:337:10)
    at Socket.ondata (node:internal/streams/readable:809:22)
    at Socket.emit (node:events:517:28) {
  ok: 0,
  code: 18,
  codeName: 'AuthenticationFailed',
  connectionGeneration: 0,
  [Symbol(errorLabels)]: Set(2) { 'HandshakeError', 'ResetPool' }
}

Node.js v18.20.3

What am I missing?

UPDATE
The password was wrong, but after using the correct one, I am getting this log:

/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Sun Sep 15 14:45:36 UTC 2024 retrying to connect to mongo:27017 (10/10)
/docker-entrypoint.sh: line 15: mongo: Try again
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
No custom config.js found, loading config.default.js
Welcome to mongo-express 1.0.2
------------------------


Mongo Express server listening at http://0.0.0.0:8081
Server is open to allow connections from anyone (0.0.0.0)
basicAuth credentials are "admin:pass", it is recommended you change this in your config.js!

The server is up but is not accessible from the browser.

The updated commands are:

docker run -p 27017:27017 -d -e MONGO_INITDB_ROOT_USERNAME=admin -e MONGO_INITDB_ROOT_PASSWORD=password --name mongodb --net mongo-network mongo

docker run -d -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin -e ME_CONFIG_MONGODB_ADMINPASSWORD=password --net mongo-network --name me -e ME_CONFIG_MONGODB_SERVER=mongodb mongo-express
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2

Answers


  1. 0

    In the first container, you’re using the username admin and the password mongoadmin

    In the second container, you’re trying to authenticate using the username admin and the password password

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  2. 0

    As of 2024 solution is:

    1: create a network

    docker create network mongo-network

    2: run the mongo db

    docker run --network mongo-network -d -p 27017:27017 -e MONGO_INITDB_ROOT_USERNAME=admin -e MONGO_INITDB_ROOT_PASSWORD=password --name mongo mongo:latest

    3: run the mongo express

    docker run --network mongo-network -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin -e ME_CONFIG_MONGODB_ADMINPASSWORD=password -e ME_CONFIG_MONGODB_URL="mongodb://admin:password@mongo:27017/" -e ME_CONFIG_BASICAUTH=false -d --name my-mongoexpress -p 8081:8081 mongo-express:latest

    make sure that –name mongo and @mongo:27017 both these things should be same

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