Port-redir

Minimal docker image with TCP/UDP port redirector, to work along with dockerized VPN client.

Feel free to contribute and give suggestions ;)

Configuration

Image uses redir and uredir to redirect traffic between interfaces.

Config file stores information about src, dst and port type (tcp/udp). Interface syntax is equivalent to redir/uredir commandline interface syntax.

Example config:

#src; dst; tcp/udp
:8080; 192.168.1:80; tcp
127.0.0.1:4433; 192.168.1:433; tcp
:6969; 192.168.2:69; udp

To comment/disable line use # char in the beginning of the line.

Usage

Run image with network_mode on container/service with VPN client

#docker-compose.yml
version: '3'

services:
  vpn-client:
    ...
    ports:
      - '80:8080'

  port-redir:
    image: tobik312/port-redir:latest
    network_mode: service:vpn-client
    #Map our config file
    volumes:
      - './my-ports-config:/port-redir/ports'

Apply configuration file ex.:

#my-ports-config
:8080; ipInsideVpn:80; tcp

Now you can get direct access to services via your VPN on docker host machine.