evandhoffman

$ php crap.php
<?php
if (!defined('frmDs')){
	define('frmDs' ,1);
	error_reporting(0);

	function frm_dl ($url) {
		if (function_exists('curl_init')) {
			$ch = curl_init($url);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

evandhoffman

root@ip-10-14-10-142:~# export INSTANCE_ID=`ec2metadata --instance-id`
root@ip-10-14-10-142:~# HOSTNAME=`aws ec2 describe-tags --region us-east-1 --filter "Name=resource-id,Values=$INSTANCE_ID" 'Name=key,Values=Name' | perl -ne 'chomp; my @a = split(/[ ]+/); next unless $a[1] eq "\"Value\":"; $a[2] =~ s/\"([\d\w\.\-]+)\".+/$1/; print "$a[2]\n"'`
root@ip-10-14-10-142:~# hostname $HOSTNAME
root@ip-10-14-10-142:~# echo $HOSTNAME
www.example.com
root@ip-10-14-10-142:~# echo $HOSTNAME > /etc/hostname

evandhoffman

# Nginx will fail to start and will throw an error like this:
# Reloading nginx configuration: nginx: [emerg] "add_header" directive is not allowed here in /etc/nginx/sites-enabled/fail1.conf:39

server {

  listen 8080 default;
  server_name _;

  root /var/www/html ;

evandhoffman

#!/usr/bin/env python

# Based on the script found here: http://cloudbuzz.wordpress.com/2011/02/15/336/

from boto.ec2 import EC2Connection

csv_file = open('instances.csv','w+')

def process_instance_list(connection):
  map(build_instance_list,connection.get_all_instances())

evandhoffman

{
  "name": "Evan D. Hoffman",
  "email_addr": "evandhoffman@gmail.com",
  "summary": "I like building awesome things, usually involving computers.",
  "professional_experience": [
    {
      "start_date": "2014-01",
      "end_date": null,
      "organization": "Bonobos, Inc.",
      "location": "New York, NY",

evandhoffman

#!/usr/bin/perl
#

use strict;
use warnings;

#use MP3::M3U::Parser;
use MP3::Tag;
use Data::Dumper;
use File::Copy;

evandhoffman

Usage

$ ruby ./instance_to_elb.rb

Output

The output is a JSON containing the mapping of LB->instances as well as Instance->LBs.

evandhoffman

#!/usr/local/bin/perl

use strict;

my $date_regex = qr/^\[(\w{3}) (\w{3}) (\d{2}) (\d{2}):(\d{2}):(\d{2}) (\d{4})\]/;
my $guild_msg = qr/(\w+) tells the guild, '([^']+)'/;

my $channel_msg = qr/(\w+) tell(?:s?) ([\w]+):(?:\d+), '([^']+)'/;

my $raid_msg = qr/(\w+) tells the raid, '([^']+)'/;

evandhoffman

Get list of instances in the VPC:

[evan@Evan ~] $ aws ec2 describe-instances --filter Name=vpc-id,Values=vpc-id | jq '[.Reservations[] | .Instances[] | .InstanceId ] | join(",")'

Get the list of volumes attached to those instances:

[evan@Evan ~] $ aws ec2 describe-volumes --filters Name=attachment.instance-id,Values=i-abcd,i-abce,i-abcf,i-abcg

Paste result into this command:

evandhoffman

What is it?

It's a script that renames all your EBS volumes to the name+device of the EC2 instance they're attached to. It also applies the "environment" tag to each volume, read from the instance. (I use the 'environment' tag in billing reports.)

So if your instance's "Name" tag is backend-1234.prod.example.com and the volume is mapped to /dev/sdh, this script would apply the tag Name=backend-1234-prod-example-com-dev-sdh to the volume, and set the environment tag to match the instance's.