Connection reset by peer

[craigp318]

I have ib-gateway running successfully (I think).
I am trying to connect via python from a different container (named ibkr, see docker compose below) using Python ib-insync, but I am getting the following error: [Errno 104] Connection reset by peer

When I run via docker compose, I can confirm in my docker logs that I see:

docker logs 21a93d22a012 | grep completed
2024-08-09 01:12:41:093 IBC: Login has completed
2024-08-09 01:12:41:391 IBC: Configuration tasks completed

and in RealVNC Viewer on 5900, startup seems healthy.

I am trying to connect via port 4001 from the same network "trader" (per "leaving localhost"), so I don't think this should be an issue.

Any thoughts what might be causing the connectivity issue?
(docker compose, python script, and runtime environment included below for reference)

docker-compose.yml

services:

  ib-gateway:
    restart: always
    image: ghcr.io/gnzsnz/ib-gateway:stable
    networks:
      - trader
    ports:
      - "5900:5900"
    env_file:
      - .env
    environment:
      TWS_USERID: #####
      TWS_PASSWORD: #####
      TRADING_MODE: live
      READ_ONLY_API: no
      VNC_SERVER_PASSWORD: #####
      TWOFA_TIMEOUT_ACTION: restart
      TWS_SETTINGS_PATH: ${TWS_SETTINGS_PATH:-}
      BYPASS_WARNING: ${BYPASS_WARNING:-}
      AUTO_RESTART_TIME: ${AUTO_RESTART_TIME:-}
      AUTO_LOGOFF_TIME: ${AUTO_LOGOFF_TIME:-}
      SAVE_TWS_SETTINGS: ${SAVE_TWS_SETTINGS:-}
      RELOGIN_AFTER_TWOFA_TIMEOUT: ${RELOGIN_AFTER_TWOFA_TIMEOUT:-no}
      TWOFA_EXIT_INTERVAL: ${TWOFA_EXIT_INTERVAL:-60}
      TIME_ZONE: ${TIME_ZONE:-Etc/UTC}
      TZ: ${TIME_ZONE:-Etc/UTC}
      CUSTOM_CONFIG: ${CUSTOM_CONFIG:-NO}
      JAVA_HEAP_SIZE: ${JAVA_HEAP_SIZE:-}
      SSH_TUNNEL: ${SSH_TUNNEL:-}
      SSH_OPTIONS: ${SSH_OPTIONS:-}
      SSH_ALIVE_INTERVAL: ${SSH_ALIVE_INTERVAL:-}
      SSH_ALIVE_COUNT: ${SSH_ALIVE_COUNT:-}
      SSH_PASSPHRASE: ${SSH_PASSPHRASE:-}
      SSH_REMOTE_PORT: ${SSH_REMOTE_PORT:-}
      SSH_USER_TUNNEL: ${SSH_USER_TUNNEL:-}
      SSH_RESTART: ${SSH_RESTART:-}
      SSH_VNC_PORT: ${SSH_VNC_PORT:-}

  ibkr:
    restart: on-failure:5
    build:
      context: .
      dockerfile: Dockerfile
    container_name: ibkr
    depends_on:
      - ib-gateway
    networks:
      - trader

networks:
  trader:

python script:

import time
from ib_insync import IB

ib = IB()


async def startup():
    time.sleep(300)  # wait for ib-gateway to warm up
    host = 'ib-gateway'
    port = 4001  # paper accounts port => 4002 | prod => 4001
    client_id = 1
    await ib.connectAsync(host, port, clientId=client_id, timeout=3)


if __name__ == "__main__":
    startup()
    

from RealVNC Viewer, confirming the runtime:

2024-08-09 00:27:51.454 [EN] INFO  [JTS-PostAuthenticateS3-34] - Build 10.19.2o, Jun 12, 2024 3:57:31 PM
2024-08-09 00:27:51.454 [EN] INFO  [JTS-PostAuthenticateS3-34] - Started on 20240809-00:27:51
2024-08-09 00:27:51.454 [EN] INFO  [JTS-PostAuthenticateS3-34] - Default timezone:Etc/UTC name:Coordinated Universal Time dst:0
2024-08-09 00:27:51.454 [EN] INFO  [JTS-PostAuthenticateS3-34] - java version = 1.8.0_202
2024-08-09 00:27:51.454 [EN] INFO  [JTS-PostAuthenticateS3-34] - sun.arch.data.model = 64
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - os = Linux
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - os version = 6.5.0-1023-aws
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - os architecture = 32
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - runtime = Java(TM) SE Runtime Environment
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - vendor = Oracle Corporation
2024-08-09 00:27:51.455 [EN] INFO  [JTS-PostAuthenticateS3-34] - vm name = Java HotSpot(TM) 64-Bit Server VM

[gnzsnz]

this is covered here https://github.com/gnzsnz/ib-gateway-docker?tab=readme-ov-file#ports

it's tricky but it's how ibgateway/docker works. for the docker-compose file that put here your python script needs to connect to 4003/4004, IF you publish the port to the outside (which is not secure) then you can map it to 4001/4002, but that's up to you.

if this solves your issue please mark it as answered

[craigp318]

This works thank you!