Add better startup flags

Dockerfile

@@ -42,11 +42,17 @@ COPY --from=soulfire-builder --chown=soulfire:soulfire /soulfire/dedicated/build
 # Use the soulfire's home directory as our work directory
 WORKDIR /soulfire
 
+# Copy over the start script
+COPY start.sh /soulfire/start.sh
+
+# Make executable
+RUN chmod +x /soulfire/start.sh
+
 # Switch from root to soulfire
 USER soulfire
 
 EXPOSE 38765/tcp
 
 # Start the process using dumb-init
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
-CMD ["/opt/java/openjdk/bin/java", "-jar", "/soulfire/soulfire.jar"]
+CMD ["/bin/sh", "/soulfire/start.sh"]

start.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [ -z "$SF_RAM" ]; then
+  echo "SF_RAM is not set. Defaulting to 2G."
+  SF_RAM="2G"
+fi
+
+echo "Starting SoulFire dedicated server..."
+java -Xmx$SF_RAM -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -jar /soulfire/soulfire.jar