Allow custom game ports other than 12203 to be specified through GAME_PORT environment variable

docker/server/base/Dockerfile

@@ -37,5 +37,9 @@ HEALTHCHECK --interval=15s --timeout=20s --start-period=10s --retries=3 CMD [ "b
 RUN useradd -m openmohaa
 USER openmohaa
 
+ENV GAME_PORT=12203
+
+COPY "entrypoint.sh" "/usr/local/bin/entrypoint.sh"
 WORKDIR "/usr/local/share/mohaa"
-ENTRYPOINT [ "/usr/local/games/openmohaa/lib/openmohaa/omohaaded", "+set", "fs_homepath", "home" ]
+
+ENTRYPOINT [ "bash", "entrypoint.sh" ]

docker/server/base/entrypoint.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# It's amazing that with Docker, one can't put environment variables in the array of the ENTRYPOINT command
+
+/usr/local/games/openmohaa/lib/openmohaa/omohaaded +set fs_homepath home +set dedicated 2 +set net_port $GAME_PORT:-12203 $@

docker/server/base/health_check.sh

@@ -6,7 +6,7 @@ header=$'\xff\xff\xff\xff\x01disconnect'
 # so the server will return the disconnect message
 message=$'none'
 
-query_port=12203
+query_port=${GAME_PORT:-12203}
 data=""
 
 while [ -z "$data" ]