Store steam data in data/ folder (fix)

.gitignore

@@ -0,0 +1 @@
+data/

README.md

@@ -46,6 +46,7 @@ The simplest way to launch Steam is by running:
 ```sh
 git clone https://github.com/arno01/steam.git
 cd steam
+chgrp docker data -R && chmod g+s data
 docker-compose run steam
 ```
 

data/README.md

@@ -0,0 +1,9 @@
+Steam will store its data in this folder:
+
+- .steam/ for updates, game downloads & storage.
+- .local/share/Steam/ for account configuration.
+
+You must ensure that this folder belongs to `docker` group!
+Change that using:
+
+chgrp docker ../data -R && chmod g+s ../data

docker-compose.yml

@@ -12,7 +12,7 @@ services:
       - /etc/localtime:/etc/localtime:ro
       - /etc/machine-id:/etc/machine-id:ro
       - $XDG_RUNTIME_DIR/pulse:/run/user/1000/pulse
-      - data:/home
+      - ./data:/home/user
       # - /var/run/dbus/system_bus_socket:/var/run/dbus/system_bus_socket:ro
       # Ubuntu's NVIDIA driver:
       - /usr/lib/nvidia-361-prime:/h1_64:ro