Minecraft on Raspberry Pi

attach-minecraft.sh

#!/bin/bash

# Use this to attach to running server and issue admin commands

tmux attach -t minecraft

close-tunnel.sh

#!/bin/bash

PIDFILE=$HOME/.mc-tunnel.pid 

if [ -f $PIDFILE ] 
then 
  echo "Closing."
  cat $PIDFILE | xargs kill
  rm $PIDFILE
else
  echo "Already closed. (No $PIDFILE)"
fi

open-tunnel.sh

#!/bin/bash

# Use remote relay host to listen from behind NAT

PIDFILE=$HOME/.mc-tunnel.pid 

if [ -f $PIDFILE ] 
then 
  echo "RM tunnel is already open. ($PIDFILE exists)"
else
  echo "Opening RM tunnel"
  ssh -N -R 0.0.0.0:25565:localhost:25565 minecraft@a-host-with-public-ip &
  echo  $! > $PIDFILE
fi

setup-mc.sh

# Require: Java 8 (older ones perform significantly worse); git; ssh; tmux

# Install spigot - Modified MC server based on Bukkit
# See https://www.spigotmc.org/
# Building locally: download latest BuildTools.jar from https://hub.spigotmc.org/jenkins/job/BuildTools/ 
java -jar BuildTools.jar

start-minecraft.sh

#!/bin/bash

# MC Server gets commands from stdio so we just wrap it into tmux session
# Adjust spigot*.jar name according to latest version

MC_CMD="java -Xmx512M -Xms128M -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=4 -XX:+AggressiveOpts -jar spigot-1.8.7.jar nogui"
MC_HOME="/home/pi/minecraft-server/" # Server JAR should be located here


if [ `tmux list-sessions | grep minecraft | wc -l` == 1 ] 
then 
  echo "Minecraft session already exists."
else
  echo "Launcing minecraft session"
  cd $MC_HOME
  tmux new-session -s minecraft -d "$MC_CMD"
fi

# You can start this remotely with  ssh pi@raspberrypi-host ./start-minecraft