fix rcon and intruduce systemd integration

server/MMS.container

@@ -0,0 +1,25 @@
+[Unit]
+Description=Modded Minecraft Server via Podman managed by Systemd
+Documentation=https://git.nanody.de/anonoe/MMS
+
+[Container]
+Image=git.nanody.de/anonoe/jre-alpine:latest
+AutoUpdate=registry
+PublishPort=25565:25565/tcp
+PublishPort=24454:24454/udp
+UserNS=keep-id
+Mount=type=bind,src=/PATH/TO/server,dst=/mnt/server
+Mount=type=bind,src=/PATH/TO/rcon,dst=/mnt/rcon
+WorkingDir=/mnt/server
+PodmanArgs=--tty --interactive
+Exec=java -Xmx4G -Xms1G -jar minecraft_server.jar --nogui
+
+[Service]
+SuccessExitStatus=0 143
+TimeoutStartSec=480
+TimeoutStopSec=480
+ExecStop=-podman exec systemd-MMS sh /mnt/rcon/stop.sh
+
+[Install]
+# Start by default on boot
+WantedBy=default.target