Add cron scripts, sample startup script, and user_data placeholder text

cron/eip_check

@@ -0,0 +1,13 @@
+#!/bin/bash
+# Associate EIP if it's dangling
+output=`aws ec2 describe-addresses --public-ip=127.0.0.1 | grep InstanceId`
+output=${output/#*InstanceId\": /}
+output=${output/%\",*/}
+
+if [ "$output" = "\"" ]
+then
+	now=$(date +"%Y-%m-%d %T")
+	echo "$now - Snagging EIP"
+	myID=`curl -s http://169.254.169.254/latest/meta-data/instance-id`
+	`/usr/local/bin/aws ec2 associate-address --instance-id $myID --public-ip 127.0.0.1`
+fi

cron/overviewer_map_update

@@ -0,0 +1,6 @@
+#!/bin/bash
+output=`screen -ls | grep overviewer`
+if [ ${#output} = 0 ]
+then
+        screen -S overviewer -d -m overviewer.py --config=/mnt/overviewer/config.py
+fi

minecraft_specs.json.skel

@@ -5,5 +5,5 @@
   "security_group_ids": [""],
   "iam_instance_profile": {"name": ""},
   "instance_type": "",
-  "user_data": ""
+  "user_data": "placeholder"
 }

startup/overviewer

@@ -0,0 +1,32 @@
+#!/bin/bash -ex
+dpkg-reconfigure -f noninteractive tzdata
+apt-get install -q -y openjdk-7-jre ntp nginx
+
+cat <<EOF >/etc/rc.local
+cd /home/minecraft
+su minecraft -c "screen -S minecraft -d -m /usr/bin/java -Xms768M -Xmx1G -jar minecraft_server.jar nogui >> server.log"
+EOF
+chmod +x /etc/rc.local
+sh /etc/rc.local
+
+echo "deb http://overviewer.org/debian ./" >> /etc/apt/sources.list
+apt-get update
+apt-get install minecraft-overviewer -y --force-yes
+
+wget -N http://s3.amazonaws.com/MinecraftDownload/minecraft.jar -P /home/minecraft/.minecraft/bin/
+
+mkdir /mnt/overviewer
+cp /home/minecraft/overviewer/config.py /mnt/overviewer/config.py
+chown minecraft:minecraft /mnt/overviewer -R
+
+su minecraft -c "screen -S overviewer -d -m overviewer.py --config=/mnt/overviewer/config.py"
+
+cp /home/minecraft/overviewer/map_update /mnt/overviewer/map_update
+chown minecraft:minecraft /mnt/overviewer/map_update
+cp /home/minecraft/overviewer/crontab /etc/cron.d/minecraft
+
+cp /home/minecraft/overviewer/site-profile /etc/nginx/sites-available/minecraft
+
+rm /etc/nginx/sites-enabled/default
+ln -s /etc/nginx/sites-available/minecraft /etc/nginx/sites-enabled/minecraft
+service nginx start