obazoud

#! /bin/sh
# ------------------------------------------------------------------------------ 
# SOME INFOS : fairly standard (debian) init script.
#                 Note that node doesn't create a PID file (hence --make-pidfile) 
#                 has to be run in the background (hence --background)
#                 and NOT as root (hence --chuid)
#
# MORE INFOS :  INIT SCRIPT       http://www.debian.org/doc/debian-policy/ch-opersys.html#s-sysvinit
#               INIT-INFO RULES   http://wiki.debian.org/LSBInitScripts
#               INSTALL/REMOVE    http://www.debian-administration.org/articles/28

obazoud

Latency Comparison Numbers
--------------------------
L1 cache reference                            0.5 ns
Branch mispredict                             5   ns
L2 cache reference                            7   ns             14x L1 cache
Mutex lock/unlock                            25   ns
Main memory reference                       100   ns             20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy              3,000   ns
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms

obazoud

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("flowdock.com") {
  .chat-message, .comment-message, .action-message, .line-message, .status-message, .file-message, .error-message {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    font-family: Ubuntu,Tahoma,sans-serif !important;
    font-size: 10px !important;
  }
}

obazoud

# TO_FOLDER=/something
# FROM=/your-es-installation

DATE=`date +%Y-%m-%d_%H-%M`
TO=$TO_FOLDER/$DATE/
echo "rsync from $FROM to $TO"
# the first times rsync can take a bit long - do not disable flusing
rsync -a $FROM $TO

# now disable flushing and do one manual flushing

obazoud

var config = {
    "database": {
        "connection": "mongodb://localhost/scrapService"
    },
    "cookieSecret": "EhAIj3NmtJ1sem5StHXV0Mk"
};
require("./user")
var express = require('express')
  , mongoose = require('mongoose')
  , User = mongoose.models["User"]

obazoud

Carbon relay - performance
alias(color(sumSeries(group(carbon.agents.*.updateOperations)), "blue"),"Updates") 
alias(color(sumSeries(group(carbon.agents.*.metricsReceived)), "green"), "Metrics Received")
alias(color(sumSeries(group(carbon.agents.*.committedPoints)),"orange"),"Committed Points"))
alias(secondYAxis(color(sumSeries(group(carbon.agents.*.pointsPerUpdate)),"yellow")),"PPU")
alias(secondYAxis(color(averageSeries(group(carbon.agents.*.cpuUsage)),"red")),"CPU (avg)")
alias(secondYAxis(color(sumSeries(group(carbon.agents.*.creates)),"purple")),"Creates")

Metrics received
carbon.agents.*.metricsReceived

obazoud

####################################
# BASIC REQUIREMENTS
# http://graphite.wikidot.com/installation
# http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
# Last tested & updated 10/13/2011
####################################

cd
sudo apt-get update
sudo apt-get upgrade

obazoud

Docker Cheat Sheet

Why

Why Should I Care (For Developers)

"Docker interests me because it allows simple environment isolation and repeatability. I can create a run-time environment once, package it up, then run it again on any other machine. Furthermore, everything that runs in that environment is isolated from the underlying host (much like a virtual machine). And best of all, everything is fast and simple."

TL;DR, I just want a dev environment

obazoud

boxes = [
  { :name => :default,    :role => 'default',     :ip => '10.11.12.13' },
  { :name => :stats,      :role => 'stats',       :ip => '10.11.12.14' },
  { :name => :something,      :role => 'something',       :ip => '10.11.12.15' },
  { :name => :jenkins,    :role => 'jenkins',     :ip => '10.11.12.16',  :http_forward => 8080 },
  { :name => :buildagent, :role => 'buildagent',  :ip => '10.11.12.17',  :http_forward => 8080 },
  { :name => :something,    :role => 'something',     :ip => '10.11.12.18' }
]

Vagrant::Config.run do |config|

obazoud

# -*- mode: ruby -*-
# vi: set ft=ruby : 
# David Lutz's Multi VM Vagrantfile
# inspired from Mark Barger's https://gist.github.com/2404910

boxes = [
  { :name => :web,    :role => 'web_dev',     :ip => '192.168.33.1', :ssh_port => 2201, :http_fwd => 9980, :cpus =>4, :shares => true },
  { :name => :data,        :role => 'data_dev',         :ip => '192.168.33.2', :ssh_port => 2202, :mysql_fwd => 9936, :cpus =>4 },
  { :name => :railsapp,    :role => 'railsapp_dev',     :ip => '192.168.33.3', :ssh_port => 2203, :http_fwd => 9990, :cpus =>1}
]