OSX ec2-tools setup for a minecraft server

ec2.env.sh

#!/bin/bash

# OSX ec2-tools setup for a minecraft server  

export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home"
export EC2_PRIVATE_KEY=~/.ec2/pk-$EC2_KEYHASH.pem 
export EC2_CERT=~/.ec2/cert-$EC2_KEYHASH.pem
export EC2_HOME=/Users/$USER/bin/ec2-tools
export EC2_AMITOOL_HOME=/Users/$USER/bin/ec2-tools
export EC2_PRIVATE_KEY=/Users/$USER/.ec2/pk-$EC2_KEYHASH.pem
export EC2_CERT=/Users/$USER/.ec2/cert-$EC2_KEYHASH.pem
export PATH=$PATH:$EC2_HOME/bin
export AWS_ACCESS_KEY="CHANGEME"
export AWS_SECRET_KEY="CHANGEME"
export EC2_URL="ec2.us-east-1.amazonaws.com"


function minecraft_server {
  INSTANCE_ID="i-CHANGEME"
  IP_ADDR="CHANGEME"
  PORT="25565"

  if [ $1 == "start" ]
  then
    _STATE=`ec2-describe-instances | grep INSTANCE | grep $INSTANCE_ID | awk '{print $4}'`
    if [ $_STATE == "stopped" ] 
    then
      echo "** Starting Minecraft Server on sandbox.codo.us"
      ec2-start-instances $INSTANCE_ID
      echo "...waiting for 20 seconds..."
      sleep 20
      echo "*** Assigning IP Address: ${IP_ADDR}."
      ec2-associate-address $IP_ADDR -i $INSTANCE_ID 
    else
      echo "** Minecraft instance is already running."
      echo "***Assigning IP Address: ${IP_ADDR}."
      ec2-associate-address $IP_ADDR -i $INSTANCE_ID 
    fi
    echo "*** ...waiting for 45 seconds for server to boot..."
    sleep 45
    echo "Minecraft should be running at sandbox.codo.us:$PORT or $IP_ADDR:$PORT"
  fi

  if [ $1 == "stop" ]
  then
    _STATE=`ec2-describe-instances | grep INSTANCE | grep $INSTANCE_ID | awk '{print $4}'`
    if [ $_STATE != "stopped" ] 
    then
      echo "** Stopping Minecraft server"
      ec2-stop-instances $INSTANCE_ID
    fi
  fi
}