Merge branch 'fix-tty' into 'master'

Allow TTY to remain open

See merge request dockerfiles/steam-dst!2

docker-compose.yml

@@ -3,6 +3,8 @@ version: '2'
 services:
   server:
     build: .
+    stdin_open: true
+    tty: true
     volumes:
     ports:
       - 11000:11000