Steam Cache Docker Container
This docker container provides a a depot-caching proxy server for Steam content. For any network with more than one PC gamer in connected this will drastically reduce internet bandwidth consumption.
The primary use case is gaming events, such as LAN parties, which need to be able to cope with hundreds or thousands of computers receiving an unannounced patch - without spending a fortune on internet connectivity. Other uses include smaller networks, such as Internet Cafes and home networks, where the new games are regularly installed on multiple computers; or multiple independent operating systems on the same computer.
You will need to have a DNS server forwarding queries to the machine your docker container is running on. You can use the steamcache-dns docker image to do this or you can use a DNS service already on your network see the steamcache-dns github page for more information.
Run the steamcache container with the using the following to allow TCP port 80 (HTTP) through the host machine:
docker run \ --restart unless-stopped \ --name steamcache \ -p 192.168.1.5:80:80 \ -v /cache/steam/data:/data/cache \ -v /cache/steam/logs:/data/logs \ steamcache/steamcache:latest
For a steam cache to function on your network you need two services.
The depot cache service transparently proxies your requests for content to Steam, or serves the content to you if it already has it.
The special DNS service handles DNS queries normally (recursively), except when they're about Steam and in that case it responds that the depot cache service should be used.
Regular commodity hardware (a single 2TB WD Black on an HP Microserver) can achieve peak throughputs of 30MB/s+ using this setup (depending on the specific content being served).
To monitor the logfiles run
watchlog.sh. This will display the names of the depots being downloaded and are colour-coded based on the source of the content. Red for content coming from Steam, green for content coming from the local cache and yellow for other content.
Running on Startup
Follow the instructions in the Docker documentation to run the container at startup.
The MIT License (MIT)
Copyright (c) 2015 Jessica Smith, Robin Lewis, Brian Wojtczak, Jason Rivers
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