find-ec2-instance.sh

gistfile1.sh

#!/bin/bash

# Intention: when receiving seemingly-random emails from Amazon Web Services that some EC2 instance will be rebooted,
# it would be handy to be able to easily identify the instance to know if you need to take further action either before
# or after the stated maintenance action.  Unfortunately, the email only gives the instance ID and region.  If you're
# maintaining multiple AWS accounts it quickly becomes cumbersome to locate the instance in question.  This small script
# can help with that.  Nothing fancy, just a quick convenience script to go do your searching for you.
#
# This script assumes two things:
#   1. you have the AWS cli installed: http://aws.amazon.com/cli/
#   2. You have one or more named account profiles configured in ~/.aws/config
#

if [ -z $1 ]
then
  echo "Usage: find-ec2-instance.sh <instance-id>"
  exit
fi

for x in `ack profile ~/.aws/config | sed 's/^.* \(.*\)\]/\1/'`;
do
  echo "- $x";
  aws ec2 describe-instances --instance-ids $1 --profile $x --query 'Reservations[*].Instances.Tags' --output text 2>/dev/null;
done