left4devops/l4d repository overview

⁠Left 4 Dead Server Docker Image

Source on Github⁠

⁠Quickstart

⁠Ports

By default, you'll want to allow both incoming TCP and UDP traffic on port 27015.

docker run -p 27015:27015/tcp -p 27015:27015/udp --name l4d left4devops/l4d

⁠Changing the port

To change the port used inside the container change the PORT environment variable, then map the new ports instead.

⁠Hostname

This identifies your server in the server browser. By default it is set to "Left4DevOps". Change it by setting the HOSTNAME environment variable.

e.g. To change your hostname to BILLS HERE:

docker run -e HOSTNAME="BILLS HERE"...

⁠Region

To help hint to Steam where your server is located, set the REGION environment variable as one of the following numeric regions:

e.g. If your server was in Europe:

docker run -e REGION=3...

⁠Joining a game

There are a couple of ways you can achieve this:

• Start a lobby, then as host, open the developer console and type mm_dedicated_force_servers [ip:port]. This will try to use your server when the gae starts.
• Add the server as a favourite using the serverbrowser openserverbrowser in game. This will make it appear as a steam group server in the menu.

⁠Advanced Tips

⁠Custom Addons

If you wanted to play a custom campaign on your server, you can mount a directory with any custom content into the /home/louis/l4d/left4dead/addons/ directory.

e.g. If your working directory had a addons folder:

docker run -v addons:/home/louis/l4d/left4dead/addons/...

⁠Alternate command line options

Any commands sent to the docker will replace the default commands line options for ./srcds_run

e.g. docker run left4devops/l4d -port 27020 +map "l4d_river01_docks" +sv_lan 1 will execute ./srcds_run -port 27020 +map "l4d_river01_docks" +sv_lan 1

⁠Custom Config

You can skip the config created by environment vars by mounting in your own server.cfg

e.g. docker run -v server.cfg:/home/louis/l4d/left4dead/cfg/server.cfg...

⁠RCON

Set an RCON password using the RCON_PASSWORD environment variable. Make sure it's hard to guess or others will control your server!