TCP Proxy - Docker

Simple TCP Proxy in a Docker Container using HAproxy

Using the official alpine based HAProxy image with a small configuration file.

Usage

Setup

You need to set two required env vars to run this container. See the Dockerfile for optional ones, such as timeouts, etc.

• HOST
  • IP or hostname to proxy connections to
• PORT
  • The port number to proxy connections to. This is also the port the container listens on.

Building the Container

docker build -t tcp-proxy .

Running the Container

The following example forwards TCP requests on port 3306 to the MySQL server db.domain.com.

docker run -it -p 3306:3306 --rm -e "HOST=db.domain.com" -e "PORT=3306" tcp-proxy

docker-compose

version: '3.5'
services:
  tcp-proxy:
    image: ghcr.io/jimcronqvist/tcp-proxy:master
    container_name: tcp-proxy
    restart: unless-stopped
    environment:
      - HOST=db.domain.com
      - PORT=3306