The Environment Restaurant

Cooking up the best in OS’s

Martin de Keijzer17-08-2013, Borsele Nederland - PHPBenelux Summer BBQ

The environment restaurant

A.K.A. Who the hell are you?Introduction

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About me

•Martin de Keijzer •Dutch web developer

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@Martin1982

PHPBenelux Board Member

Working for Ibuildings

http://www.martindekeijzer.nl

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Devs

No PHP in this talk....

Ways to developDev environments

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Central server

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•Everyone has the same environment

•Code can be tested immediately by PM’s

•Developers don’t need to install stuff

Central server

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•If the server is down, everyone’s down

•If the code breaks, a lot of people can’t continue

•Everyone needs access to a critical business asset (even the interns)

Local server

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•Everyone has an environment to break

•Deployment tests are easily done by one developer

•Developer freedom of software

Local server

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•Developers can install unsupported software

•Every developer needs time to setup an environment

•An environment-dependent change can still break the code

The homeless love restaurantsVagrant

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Versionable environment

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•Save your environment to a VCS and share

•Everyone can tinker with their environment and rebuild in minutes

•Developers have the freedom to update environments

•Environments can be reviewed by team leads

Versionable environment

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•Steep learning curve to make it really functional

We’ll fix this.... today!

Prerequisites

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OR

VirtualBox (free)

VMWare (commercial)

Prerequisites

!14http://www.vagrantup.com

Getting started

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vagrant  init

Create a basic vagrant file

Vagrantfile•#  -­‐*-­‐  mode:  ruby  -­‐*-­‐  •#  vi:  set  ft=ruby  :  !•Vagrant.configure("2")  do  |config|  •    config.vm.box  =  "precise64"  •    config.vm.box_url  =  "http://dl.dropbox.com/u/1537815/precise64.box"  •    config.vm.network  :private_network,  ip:  "192.168.33.10"  •    config.vm.synced_folder  ".",  "/vagrant_data"  •    config.vm.provider  :virtualbox  do  |vb|  •        vb.customize  ["modifyvm",  :id,  "-­‐-­‐memory",  "1024"]  •    end  •end !16

Getting up and running

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vagrant  up

More options

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vagrant  suspend

vagrant  destroy

vagrant  resume

vagrant  ssh

Getting up and running

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All done! Thank you!

Getting up and running

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But how about my software? Nginx? PHP 5.5.1? Solr?

Taking away the hassleProvisioning

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Provisioning

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Bash

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Puppet

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Make your restaurant smooth with a ChefChef

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Chef

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Cookbooks

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Utilizing cookbooks•config.vm.provision  :chef_solo  do  |chef|  •        chef.cookbooks_path  =  "provision/cookbooks"  •        chef.add_recipe  "wp-­‐cli"  •        chef.add_recipe  "wp_site_myproject"  •        chef.json  =  {  •            :mysql  =>  {  •                :server_debian_password  =>  'vagrant',  •                :server_root_password  =>  'vagrant',  •                :server_repl_password  =>  'vagrant'  •            }  •        }  •    end

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Vagrant up

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The Chef’s best friend for cookbooksLibrarian

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Librarian

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gem  install  librarian-­‐chef

Create your librarian

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librarian-­‐chef  init

Cheffile

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#!/usr/bin/env ruby #^syntax detection site 'http://community.opscode.com/api/v1' !# cookbook 'chef-client' # cookbook 'apache2', '>= 1.0.0' # cookbook 'rvm', # :git => 'https://github.com/fnichol/chef-rvm' # cookbook 'postgresql', # :git => 'https://github.com/findsyou/cookbooks', # :ref => 'postgresql-improvements'

Loading cookbooks

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librarian-­‐chef  install

librarian-­‐chef  clean

librarian-­‐chef  update

librarian-­‐chef  show

When your Chef and Librarian can’t handleKnife

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Knife

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gem  install  chef

A new cookbook

•knife  cookbook  create  mybook  -­‐o  ./mycookbooks !37

attributes Default configurationsdefinitions exposed functions

files resource fileslibraries reuseable libraries

metadata.rb Meta informationproviders defines actionsrecipes runnable scripts

resources runs providerstemplates views-like

Metadata.rb

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name                          'wp-­‐cli'  maintainer              'Martin  de  Keijzer'  maintainer_email  '[email protected]'  license                    'LGPL  V3'  description            'Installs/Configures  wp-­‐cli'  long_description  IO.read(File.join(File.dirname(__FILE__),  'README.md'))  version                    '0.1.0'  !depends  "curl"  depends  "git"  depends  "php"  depends  "mysql"  depends  "database"

attributes/default.rb

•default['wp']['wpcli-­‐dir']  =  '/usr/share/wp-­‐cli'  •default['wp']['wpcli-­‐version']  =  '@stable'  •default['wp']['wpcli-­‐link']  =  '/usr/bin/wp'

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•Filename must match the recipe name •‘default’ is a special name

recipes/default.rb•#  Cookbook  Name::  wp-­‐cli  •#  More  comments.....  •include_recipe  'git'  •#  More  prerequisites  !•#  create  wpcli  dir  •directory  node['wp']['wpcli-­‐dir']  do  •    recursive  true  •end  !•

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recipes/default.rb•#  download  installer  •remote_file  "#{node['wp']['wpcli-­‐dir']}/installer.sh"  do  •    source  'http://wp-­‐cli.org/installer.sh'  •    mode  0755  •    action  :create_if_missing  •end  !•

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recipes/default.rb•bin_dir  =  ::File.join(node['wp']['wpcli-­‐dir'],  'bin',  'wp')  !•#  run  installer  •bash  'install  wp-­‐cli'  do  •    code  './installer.sh'  •    cwd  node['wp']['wpcli-­‐dir']  •    environment  'INSTALL_DIR'  =>  node['wp']['wpcli-­‐dir'],  •                            'VERSION'  =>  node['wp']['wpcli-­‐version']  •    creates  bin_dir  •end  •

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recipes/default.rb•#  link  wp  bin  •link  node['wp']['wpcli-­‐link']  do  •    to  bin_dir  •end  if  node['wp']['wpcli-­‐link']

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Cookbook done

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Congratulations you’ve taken the first baby steps

in creating a reusable cookbook!

Bonus: templates/default•#  redirect  met  zonder  www  naar  www.<%=  @params[:server_name]  %>  •<VirtualHost  *:80>  •            ServerName  <%=  @params[:server_name]  %>  •            Redirect  /  http://www.<%=  @params[:server_name]  %>/  •</VirtualHost>

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Usage from a recipe

•web_app  "mysite"  do  •    template  "mytemplate.conf.erb"  •    docroot  node[:mysite][:dir]  •    server_name  node[:mysite][:server_name]  •end

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What have we learned?Conclusion

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Conclusion

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•Developers require: ‣Virtualbox or VMWare ‣Vagrant

•Team leads / Devops require: ‣All of the above ‣Chef + Knife ‣ Librarian ‣ Enough Server OS experience to cook up the best

environments

QUESTIONS

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Bon appetit

[email protected]@Martin1982

Thank you for listening