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#!/usr/bin/with-contenv sh
if [ ! -f /etc/dnsmasq-resolv.conf ]
then
    cp -f /etc/resolv.conf /etc/dnsmasq-resolv.conf
    echo "nameserver 127.0.0.1" > /etc/resolv.conf
fi

while ! ps -ef | grep -v grep | grep dnsmasq-resolv.conf
do
    sleep 1

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{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "An etcd cluster based off an auto scaling group",
  "Mappings" : {
      "RegionMap" : {
          "eu-central-1" : {
              "AMI" : "ami-840a0899"
          },
          "ap-northeast-1" : {
              "AMI" : "ami-6c5ac56c"

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#!/bin/bash

export Register=https://register.example.com
export cLink="/v2/_catalog?n=10"
export cFile=docker.register.catalog
export tFile=docker.register.tags

function listFullCatalog {

 while true; do

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This is a fork from the original CoreOS cloud formation template. It adds two EBS disks of 30G, mounted to /var/lib/docker.

This is intended to be used with an m3.large machine which comes with 30G of SSD.

The reason I add two of 30 and not one of 60 is because a BTRFS limitation.

You can use the "btrfs add" approach in the units to create a BTRFS raid.

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Execute as root

* Install kernel headers
 
apt-get update && apt-get dist-upgrade
apt-get install -y build-essential libssl-dev
arch="$(uname -m)"
release="$(uname -r)"
upstream="${release%%-*}"
local="${release#*-}"

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#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

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<canvas id="invoice_status_chart" min-height="300" max-height="500"></canvas>
<script type="text/javascript" charset="utf-8">

	var invoice_status_data = {};

	function invoice_status_chart() {
		var can = jQuery('#invoice_status_chart');
		var ctx = can.get(0).getContext("2d");
		var container = can.parent().parent(); // get width from proper parent

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# change prefix to Ctrl-a (like in gnu-screen)

unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix


# shell
set -g default-command /bin/zsh
set -g default-shell /bin/zsh

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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#!/usr/bin/python
import time
import datetime
import random
timestr = time.strftime("%Y%m%d-%H%M%S")

f = open('access_log_'+timestr+'.log','w')

ips=["123.221.14.56","16.180.70.237","10.182.189.79","218.193.16.244","198.122.118.164","114.214.178.92","233.192.62.103","244.157.45.12","81.73.150.239","237.43.24.118"]
referers=["-","http://www.casualcyclist.com","http://bestcyclingreviews.com/top_online_shops","http://bleater.com","http://searchengine.com"]