ArmaDocker

Arma 3 Dedicated Server containerized for Docker or Podman.

Quick Start

1. Copy the example environment file and fill in your credentials:

   cp .env.example .env
   # Edit .env with your Steam credentials and server settings

2. Configure your mods in arma/mods.json.

3. Configure your server settings in arma/server.cfg.template. The following environment variables are expanded at runtime:

   • SERVER_NAME
   • SERVER_PASSWORD
   • SERVER_ADMIN_PASSWORD
   • SERVER_COMMAND_PASSWORD

4. Start the server:

   ./serverctl.sh start --mode update

5. For subsequent quick starts (skip downloads):

   ./serverctl.sh start --mode quick

Available Commands

Command	Description
start	Start the server (default: update)
stop	Stop and remove the container
restart	Restart the server
status	Show running containers
logs	Tail server logs

Directory Structure

• arma/mods.json — Workshop mod list with load order
• arma/server.cfg.template — Server configuration template
• arma/mpmissions/ — Mission files
• arma/logs/ — Server logs (mounted from container)
• .env — Secrets and settings (do not commit)

Environment Variables

Variable	Description	Default
STEAM_USER	Steam username	(required)
STEAM_PASS	Steam password	(required)
SERVER_NAME	Server hostname	Arma 3 Server
SERVER_PASSWORD	Server join password	changeme
SERVER_ADMIN_PASSWORD	Admin password	changeme
SERVER_COMMAND_PASSWORD	Server command password	changeme
N_DOWNLOAD_THREADS	Concurrent mod downloads	4
LOG_LEVEL	Python log level	INFO
UPDATE_ON_START	0 for quick start, 1 for update	1

Networking

The server exposes the following ports:

Port	Protocol	Purpose
2302-2306	UDP	Game traffic
2302-2306	TCP	Steam query / RCON

Requirements

• Docker or Podman
• A Steam account that owns Arma 3
• Bash (for serverctl.sh)