update build process

Dockerfile

@@ -0,0 +1,29 @@
+FROM hackebein/srcds
+
+ENV APPS="4020" \
+    TICKRATE="66" \
+    MAXPLAYERS="16" \
+    #http://steamcommunity.com/dev/apikey
+    AUTHKEY="" \
+    WORKSHOPCOLLECTIONID="" \
+    # sandbox or terrortown
+    GAMEMODE="sandbox" \
+    MAP="gm_flatgrass" \
+    #http://steamcommunity.com/dev/managegameservers APPID: 4000
+    GLST="" \
+    CONFIG="server.cfg" \
+    CUSTOMPARAMETERS="" \
+    SRCDSPARAMS="\
+        -game garrysmod \
+        -tickrate ${TICKRATE} \
+        -maxplayers ${MAXPLAYERS} \
+        -authkey ${AUTHKEY} \
+        +host_workshop_collection ${WORKSHOPCOLLECTIONID} \
+        +gamemode ${GAMEMODE} \
+        +map ${MAP} \
+        +sv_setsteamaccount ${GLST} \
+        +servercfgfile ${CONFIG} \
+        ${CUSTOMPARAMETERS} \
+    "
+
+COPY cfg $BASEDIR/garrysmod/cfg