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Avoiding surprises with Chef and Vagrant

Andy Gale
September 02, 2012

Avoiding surprises with Chef and Vagrant

Talk given at CakeFest 2012 about using CakePHP with Vagrant and Chef to provide a consistent local development environment.

Andy Gale

September 02, 2012
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  1. Avoiding surprises with Chef and Vagrant Andy Gale andy-gale.com Wednesday,

    29 May 13
  2. Your development and production environment are not the same! •

    Different OS? • Different version of PHP? • Diverged package versions? • Different default configuration files? • Different PHP libraries and extensions? Wednesday, 29 May 13
  3. Well, it worked on my machine! Wednesday, 29 May 13

  4. Developing in a Virtual Machine • Consistent OS and PHP

    versions between production and local development • New starters can get going with development straight away • Existing developers can redistribute development platform in case of hardware failure Reasons why we should: Wednesday, 29 May 13
  5. Developing in a Virtual Machine • Because it’s a massive

    pain in the arse • Scared of the command line • There’s a massive overhead keeping the VM up to date • Can never get the networking between you and your VM working Reasons why we don’t: Wednesday, 29 May 13
  6. Vagrant Virtualised development made easy vagrantup.com Wednesday, 29 May 13

  7. • Install Oracle’s VirtualBox www.virtualbox.org/wiki/Downloads • Install Vagrant (packages for

    Windows, Mac, Linux) downloads.vagrantup.com • Then... Vagrant Getting started $ vagrant box add precise32 http://files.vagrantup.com/precise32.box $ vagrant init precise32 $ vagrant up Wednesday, 29 May 13
  8. • Simple to configure using the Vagrantfile which can be

    kept in version control Vagrant Configuration Vagrant::Config.run do |config| # Forward guest port 80 to # host port 4567 config.vm.forward_port 80, 4567 end • Apply with “vagrant reload” Wednesday, 29 May 13
  9. • A tool for automating the provisioning and management of

    your servers • Open source • Lots of examples and code to get you started • Integrates brilliantly with Vagrant www.opscode.com/chef/ Wednesday, 29 May 13
  10. • Talk from Jose Diaz-Gonzalez at CakeFest 2011 tv.cakephp.org/video/CakeFoundation/2011/10/04/full-stack_cakephp_deployment_by_jose_gonzalez •

    Or his comprehensive blog posts josediazgonzalez.com/2011/10/03/full-stack-cakephp-deployment-with-chef-and-capistrano/ Getting started Wednesday, 29 May 13
  11. My first recipe package "ntp" do action :install end template

    "/etc/ntp.conf" do source "ntp.conf.erb" owner "root" group "root" mode 0644 notifies :restart, resources(:service => "ntp") end service "ntp" do action :start end Install package Create config file from template Define service and start NTP Restart service when config file changes Wednesday, 29 May 13
  12. Getting started • “Cookbooks” are collections of templates, files and

    basic Ruby code that describe how to setup something. • There’s community (i.e. Open Source, Free) cookbooks for probably everything you’ll need community.opscode.com • You just need to define a few extra things Wednesday, 29 May 13
  13. Chef and Vagrant sitting in a tree + Let’s use

    Vagrant to create a virtual machine to test our Chef configuration Wednesday, 29 May 13
  14. • Install Oracle’s VirtualBox www.virtualbox.org/wiki/Downloads • Install Vagrant (packages for

    Windows, Mac, Linux) downloads.vagrantup.com • Assuming you have git Let’s go $ git clone [email protected]:salgo/cakefest-vagrant-chef.git $ cd cakefest-vagrant-chef $ ./git-fetch-submodules.sh $ vagrant up Wednesday, 29 May 13
  15. But that’s not it • Vagrant also supports provisioning with

    Puppet or just a custom script if that’s what your company uses • Use your favourite editor, your files appear in /vagrant automatically • Because you can recreate your development environment with “vagrant up” whenever you like, you can save disk space with “vagrant destroy” Wednesday, 29 May 13
  16. But that is it. • Questions? • @andygale on Twitter

    • andy-gale.com on the Web Wednesday, 29 May 13