initial commit from code.google.com

ec2-write-storage-used/README.txt

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+# Introduction:
+ec2-write-storage-used was created to extend Amazon's default metrics for EC2 instances to include a metric for the amount of storage space used on an individual EC2 instance.
+# Directions For Use:
+#
+ec2-write-storage-used.sh
+## Example of Use:
+#
+The most valuable use of this application is to be run through cron on a regular basis.
+#
+# Additional Information:
+#
+Author: Colin Johnson / colin@cloudavail.com
+Date: 2011-11-14
+Version 0.1
+License Type: GNU GENERAL PUBLIC LICENSE, Version 3

ec2-write-storage-used/ec2-write-storage-used.sh

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+#!/bin/bash -
+#get instance id - used for putting metric
+INSTANCE_ID=`GET http://169.254.169.254/latest/meta-data/instance-id`
+INSTANCE_AZ=`curl -s curl http://169.254.169.254/latest/meta-data/placement/availability-zone/`
+INSTANCE_REGION=${INSTANCE_AZ%?}
+
+#belowshould be changed to grep - get only everything after % space slash
+filesystemlist=`df -l | grep -i \/ | cut -c57-100` #add -l to restrict to local file systems
+
+for filesystemmountpoint in $filesystemlist
+	do
+	storageused=`df | grep %\ *$filesystemmountpoint$ | grep -o [0-9]*% | tr -d %` #need to error check and possibly remove leading white space
+	mon-put-data --region $INSTANCE_REGION --metric-name StorageUsed --namespace EC2/Storage --value $storageused --unit Percent --dimensions FileSystem=$filesystemmountpoint,InstanceId=$INSTANCE_ID
+done
+
+#to run in cron every 5 minutes - note that you must first provide credentials for mon-put-data
+#echo "*/5 * * * * ec2-user /usr/local/bin/ec2-write-storage-used.sh" > /etc/cron.d/ec2-write-storage-used