Add generic source engine Dockerfile

Dockerfile

@@ -0,0 +1,22 @@
+# ----------------------------------
+# Pterodactyl Core Dockerfile
+# Environment: Source Engine
+# Minimum Panel Version: 0.6.0
+# ----------------------------------
+FROM        ubuntu:16.04
+
+MAINTAINER  Pterodactyl Software, <support@pterodactyl.io>
+ENV         DEBIAN_FRONTEND noninteractive
+# Install Dependencies
+RUN         dpkg --add-architecture i386 \
+            && apt-get update \
+            && apt-get upgrade -y \
+            && apt-get install -y tar curl gcc g++ lib32gcc1 lib32tinfo5 lib32z1 lib32stdc++6 libtinfo5:i386 libncurses5:i386 libcurl3-gnutls:i386 \
+            && useradd -m -d /home/container container
+
+USER        container
+ENV         HOME /home/container
+WORKDIR     /home/container
+
+COPY        ./entrypoint.sh /entrypoint.sh
+CMD         ["/bin/bash", "/entrypoint.sh"]

README.md

@@ -1,2 +1,2 @@
 # Containers
-Generic docker containers designed to work with Pterodactyl Panel and its daemon.
+Generic docker containers designed to run source engine games.

entrypoint.sh

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+#!/bin/bash
+sleep 5
+
+cd /home/container
+
+# Replace Startup Variables
+MODIFIED_STARTUP=`eval echo $(echo ${STARTUP} | sed -e 's/{{/${/g' -e 's/}}/}/g')`
+echo ":/home/container$ ${MODIFIED_STARTUP}"
+
+# Run the Server
+${MODIFIED_STARTUP}
+
+if [ $? -ne 0 ]; then
+    echo "PTDL_CONTAINER_ERR: There was an error while attempting to run the start command."
+    exit 1
+fi