Left 4 Dead 2 Dedicated Server + Docker

L4D2 server in docker

Docker hub image

DockerHub

docker pull jackzmc/srcds-l4d2

Tag Descriptions / Dockerfile Links

• Latest - The latest, full game image.
• Bare - Does not contain a predownloaded game image, must be installed on start
• Sourcemod - Contains bare version with sourcemod preinstalled
• Sourcemod-full - Contains full version with sourcemod preinstalled

Envs:

USER - username for /home/ dir (default: steam)
SERVER - where to store data files (steamcmd & csgo dir, defaults to /home/$USER/server )

Details:

You can create new Dockerfile based on that image and customize it with plugins, configs, CMD and ENTRYPOINT instructions.

Also you can create volumes with the -v flag that point to the host for these directories:

• /data/addons - Copied to the left4dead2 addon folder on start (left4dead2/addons)
• /data/configs - Copied to the game's configs folder (left4dead2/cfgs)
• /data/sm-plugins - Copied to sourcemod plugins folder
• /data/sm-configs - Copied to sourcemod configs folder

Examples

# Generic Server
docker run -it -p 27015:27015 -p 27015:27015/udp jackzmc/srcds-l4d2:[tag-name] -usercon +map c8m1_apartment
# add extra cvars at the end

# Setting hostname or any variables with spaces
# You should enclose it with quotes (\"), for example:
docker run -it -p 27015:27015 -p 27015:27015/udp jackzmc/srcds-l4d2:[tag-name] -usercon +hostname "\"My Server With Spaces\""

# Versus Server
docker run -it -p 27015:27015 -p 27015:27015/udp jackzmc/srcds-l4d2:[tag-name] -usercon +map c8m1_apartment versus +sv_gametypes "VERSUS" 

# Run a server with sourcemod configs & plugins
docker run -it -p 27015:27015 -p 27015:27015/udp -v /home/jackz/sourcemod-plugins:/data/sm-plugins -v /home/jackz/sourcemod-configs/configs:/data/sm-configs jackzmc/srcds-l4d2:sourcemod -usercon +map c8m1_apartment 
#you can also use sourcemod-full if you are going to be restarting it often

Building Docker Images

The bare and sourcemod branches should contain all elements you need to build the image, but the master/latest branch will require you to have a cache copy of l4d2 installed. This folder should be where the Dockerfile exists, and should be called srcds-cache.

# Build custom image
docker build -t l4d2 github.com/jackzmc/docker-l4d2-server

You can use steamcmd to download to srcds-cache with this command: steamcmd.sh +login aonymous +force_install_dir /path/to/dockerfile/srcds-cache +app_update 222860 +quit