# Steam in Docker

## Changes

### Dec 22 2018:

- support Vulkan;

### Dec 21 2018:

- got rid of 'wrong ELF class' messages in the logs;
- changed the base image ``debian:jessie`` to ``ubuntu:bionic``;
- significantly reduced the amount of dependencies as the image is now using
  the Steam runtime;
- added ``SYS_PTRACE`` cap so Proton (modified version of Wine created by Steam) can show additional process traces;
- removed grsecurity support since they have [stopped](https://lwn.net/Articles/720983/) giving us the test patches;
- simplified the ``LD_LIBRARY_PATH`` routine in the launcher;
- users can now control the ``USER_ID`` via the environment variable;
- removed the old drivers support, let me know if you want it back;

## Why?

1. I want to set-up more fences when running the code I cannot always trust nor verify; [issue 3671](https://github.com/valvesoftware/steam-for-linux/issues/3671)
2. I do not want to be spending time figuring out how to install Steam (what deps) in a non-Debian (or non-SteamOS) based distro;
3. I like cleanliness: I can erase Steam and all its dependencies in a matter of seconds by just removing this image;
4. I can have Steam on my Ubuntu/openSUSE/[put any other distro I will want to use] in a short time that Docker takes to download this image;

> Suggestions / PR's are welcome!

## What's tested?

Games:

- Counter-Strike 1.6
- Counter-Strike: Global Offensive
- Call of Duty 4: Modern Warfare
- Delta Force (NovaLogic)

OS:

- Linux: Ubuntu 18.04.1 LTS (64-bit)

HW:

- ASUS P8Z68-V PRO/GEN3

GPU:

- Intel HD Graphics 3000
- NVIDIA's GeForce GTX 1060

> For running games on AMD Radeon please uncomment ``/dev/kfd`` device in the docker-compose.yml file.

## Requirements

- [Docker](https://www.docker.com/)
- [Docker Compose](https://docs.docker.com/compose/) minimum version 1.7.3

# Building and launching Steam

## Launching Steam in Docker

```sh
git clone https://git.nixaid.com/arno/steam.git
cd steam
docker-compose build && docker-compose up
```

If Steam does not start, you may need to allow your user making connections to
your X server:

```sh
xhost +SI:localuser:$(id -un)
```

You can use the following alias:

> add this to your ``~/.bash_alias`` file

```sh
function docker_helper_up() {
  command cd ~/git/$1
  docker-compose up -d "$1"
  command cd ~-
}

function steam() {
  docker_helper_up "$FUNCNAME"
}
```

## Troubleshooting

You might want to modify the `docker-compose.yml` in case of problems,
the file should be pretty self explanatory, although you may refer to the official [Docker Compose file reference](https://docs.docker.com/compose/compose-file/)

Also keep in mind to uncomment or/and add your devices to the `devices:` section there.

The best result is when you have a similar to the following output, using the `glxgears` (part of `mesa-utils` package):

If you are getting `segmentation fault` error or Steam does not start, then you could try resetting its config:

```sh
docker-compose run --rm steam --reset
```

## Vulkan / DXVK

DXVK is a Vulkan-based compatibility layer for Direct3D 11.

It allows running 3D applications on Linux using Wine.

To fully leverage the DXVK, you need the following:

1. Vulkan library installed;

2. Capable GPU that supports Vulkan;

3. Latest GPU drivers which support Vulkan;

4. Wine 3.10+ with the [DXVK](https://github.com/doitsujin/dxvk/) (Steam's Proton already has DXVK installed);

5. The game that supports DirectX 11;

```
$ cat /home/user/.local/share/Steam/steamapps/common/Proton\ 3.16/dist/lib64/wine/dxvk/version
60a03a29599bf1f8c73efdbcf288e91ef261bc58 dxvk (v0.90-10-g60a03a2)
```

### Test Vulkan

```
$ docker-compose run --rm --entrypoint bash steam
root@steam:/# id user >/dev/null 2>&1
root@steam:/# [ $? -eq 0 ] || useradd -s /bin/bash -d /home/user -u ${USER_ID:-1000} user
root@steam:/# su -l user
user@steam:~$ LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/hostlibs/32:/hostlibs/64:"
user@steam:~$ LD_LIBRARY_PATH=${LD_LIBRARY_PATH} vulkaninfo | more
user@steam:~$ LD_LIBRARY_PATH=${LD_LIBRARY_PATH} vulkan-smoketest
```

### Test DXVK

First, you need DirectX 10/11 game.

```
$ docker-compose exec steam
$ echo 'user_settings = { "DXVK_HUD": "devinfo,fps", }' > .local/share/Steam/steamapps/common/Proton\ 3.16/user_settings.py
```

After that, launch your game and you should be able to see DXVK HUD in the left upper corner of the screen.

# Links

Below is just a bunch of links, someone might find them useful.

- https://github.com/ValveSoftware/steam-for-linux/issues

- https://github.com/ValveSoftware/Proton/issues

- https://wiki.ubuntu.com/Valve

- https://developer.valvesoftware.com/wiki/Steam_under_Linux#Ubuntu

- http://media.steampowered.com/client/installer/steam.deb

- http://repo.steampowered.com/steam/archive/precise/steam_latest.deb

- http://repo.steamstatic.com/steam/

- https://developer.nvidia.com/vulkan-driver

- https://en.wikipedia.org/wiki/Vulkan_(API)#Compatibility

- https://github.com/lutris/lutris/wiki/How-to:-DXVK

- https://github.com/doitsujin/dxvk/wiki/Driver-support

- https://www.protondb.com

- https://lutris.net