Docker cannot connect to MongoDB locally

aaP_demo1

I have created a mongo-express container using docker terminal command line and connect my mongodb using security authentication enabled:

docker run -d --name mongo-express -e ME_CONFIG_MONGODB_SERVER=localhost -e ME_CONFIG_MONGODB_PORT=27017 -e ME_CONFIG_MONGODB_ADMINUSERNAME=root -e ME_CONFIG_MONGODB_ADMINPASSWORD=password -p 2053:8081 mongo-express

However, it seems not connected to my local mongodb user credentials. Here is my error logs:

docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:48 UTC 2025 retrying to connect to mongo:27017 (2/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:49 UTC 2025 retrying to connect to mongo:27017 (3/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:50 UTC 2025 retrying to connect to mongo:27017 (4/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:51 UTC 2025 retrying to connect to mongo:27017 (5/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:52 UTC 2025 retrying to connect to mongo:27017 (6/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:53 UTC 2025 retrying to connect to mongo:27017 (7/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:54 UTC 2025 retrying to connect to mongo:27017 (8/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:55 UTC 2025 retrying to connect to mongo:27017 (9/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
Thu Mar 20 15:44:56 UTC 2025 retrying to connect to mongo:27017 (10/10)
/docker-entrypoint.sh: line 15: mongo: Name does not resolve
/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://root:****@localhost:27017/"
/app/node_modules/mongodb/lib/sdam/topology.js:285
                const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
                                     ^

MongoServerSelectionError: connect ECONNREFUSED ::1:27017
    at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:285:38)
    at listOnTimeout (node:internal/timers:569:17)
    at process.processTimers (node:internal/timers:512:7) {
  reason: TopologyDescription {
    type: 'Unknown',
    servers: Map(1) {
      'localhost:27017' => ServerDescription {
        address: 'localhost:27017',
        type: 'Unknown',
        hosts: [],
        passives: [],
        arbiters: [],
        tags: {},
        minWireVersion: 0,
        maxWireVersion: 0,
        roundTripTime: -1,
        lastUpdateTime: 130249877,
        lastWriteDate: 0,
        error: MongoNetworkError: connect ECONNREFUSED ::1:27017
            at connectionFailureError (/app/node_modules/mongodb/lib/cmap/connect.js:387:20)
            at Socket.<anonymous> (/app/node_modules/mongodb/lib/cmap/connect.js:310:22)
            at Object.onceWrapper (node:events:632:26)
            at Socket.emit (node:events:517:28)
            at emitErrorNT (node:internal/streams/destroy:151:8)
            at emitErrorCloseNT (node:internal/streams/destroy:116:3)
            at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
          cause: Error: connect ECONNREFUSED ::1:27017
              at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16) {
            errno: -111,
            code: 'ECONNREFUSED',
            syscall: 'connect',
            address: '::1',
            port: 27017
          },
          [Symbol(errorLabels)]: Set(1) { 'ResetPool' }
        },
        topologyVersion: null,
        setName: null,
        setVersion: null,
        electionId: null,
        logicalSessionTimeoutMinutes: null,
        primary: null,
        me: null,
        '$clusterTime': null
      }
    },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: null,
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
  },
  code: undefined,
  [Symbol(errorLabels)]: Set(0) {}
}

Node.js v18.20.3

How can I make it to connect successfully?

aaPanel_Kern

Hello,
Is it recommended that containers communicate with MongoDB? locahost only has local connections

aaP_demo1

aaPanel_Kern
Yes, but can you help me if the container can communicate with localhost connection?

aaPanel_Kern

It is recommended that you explain the network status before the program.
If it is a host MongoDB, please use bridge.
If the container is between the container, please check whether communication is possible? Is it in the same network

aaP_demo1

aaPanel_Kern
my server using a localhost mongodb.

However, I want to run mongo-express container that can connect to my localhost mongodb server.

actually, i'm a new to docker and i may not know how a container connects to a local service and I don't want connection between containers. currently I want one service is a container to connect with my local service on the server.

aaPanel_Kern

Hello, use --network host when creating containers

aaP_demo1

aaPanel_Kern

add --network host to my docker command?

docker run -d --name mongo-express --network host -e ME_CONFIG_MONGODB_SERVER=localhost -e ME_CONFIG_MONGODB_PORT=27017 -e ME_CONFIG_MONGODB_ADMINUSERNAME=root -e ME_CONFIG_MONGODB_ADMINPASSWORD=password -p 2053:8081 mongo-express

is it correct?

aaPanel_Kern

Yes, You try

aaP_demo1

aaPanel_Kern
thank you so much, it works now.

aaP_demo1

aaPanel_Kern
Quick Update the command line does work with Ubuntu 24.04. However, I changed to CentOS Stream 9 now and it does not working. The service cannot start and shows the error:

Could not connect to database using connectionString: mongodb://root:****@localhost:27017/"
/app/node_modules/mongodb/lib/sdam/topology.js:285
                const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
                                     ^

MongoServerSelectionError: connect ECONNREFUSED ::1:27017
    at Timeout._onTimeout (/app/node_modules/mongodb/lib/sdam/topology.js:285:38)
    at listOnTimeout (node:internal/timers:569:17)
    at process.processTimers (node:internal/timers:512:7) {
  reason: TopologyDescription {
    type: 'Unknown',
    servers: Map(1) {
      'localhost:27017' => ServerDescription {
        address: 'localhost:27017',
        type: 'Unknown',
        hosts: [],
        passives: [],
        arbiters: [],
        tags: {},
        minWireVersion: 0,
        maxWireVersion: 0,
        roundTripTime: -1,
        lastUpdateTime: 10277985,
        lastWriteDate: 0,
        error: MongoNetworkError: connect ECONNREFUSED ::1:27017
            at connectionFailureError (/app/node_modules/mongodb/lib/cmap/connect.js:387:20)
            at Socket.<anonymous> (/app/node_modules/mongodb/lib/cmap/connect.js:310:22)
            at Object.onceWrapper (node:events:632:26)
            at Socket.emit (node:events:517:28)
            at emitErrorNT (node:internal/streams/destroy:151:8)
            at emitErrorCloseNT (node:internal/streams/destroy:116:3)
            at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
          cause: Error: connect ECONNREFUSED ::1:27017
              at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16) {
            errno: -111,
            code: 'ECONNREFUSED',
            syscall: 'connect',
            address: '::1',
            port: 27017
          },
          [Symbol(errorLabels)]: Set(1) { 'ResetPool' }
        },
        topologyVersion: null,
        setName: null,
        setVersion: null,
        electionId: null,
        logicalSessionTimeoutMinutes: null,
        primary: null,
        me: null,
        '$clusterTime': null
      }
    },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: null,
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
  },
  code: undefined,
  [Symbol(errorLabels)]: Set(0) {}
}

Can you help me?

aaP_demo1

aaP_demo1
This case is fixed I change the command from using localhost to 127.0.0.1.

aaP_demo1

The same issues with mongoDB backup and restore database too. It usually works with Ubuntu 24. But on CentOS keeps not working.

aaP_demo1

aaP_demo1
Can you help me check on this issue please? I want to backup and restore the database using this interface.

aaPanel_Kern

Hello,
It is recommended to check whether there is any localhost pointing to 127.0.0.1 under?
aaP_demo1

aaP_demo1

aaP_demo1
Can you help me check on the mongodb database backup and restore interface features? because it is only works with Ubuntu.

aaP_demo1

aaPanel_Kern