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?
4. Developing in a Virtual Machine
Reasons why we should:
• 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
5. Developing in a Virtual Machine
Reasons why we don’t:
• 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
8. Vagrant
Configuration
• Simple to configure using the
Vagrantfile which can be kept in version
control
Vagrant::Config.run do |config|
# Forward guest port 80 to
# host port 4567
config.vm.forward_port 80, 4567
end
• Apply with “vagrant reload”
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/
10. Getting started
• 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/
11. My first recipe
package "ntp" do
action :install Install package
end
Create config file
template "/etc/ntp.conf" do from template
source "ntp.conf.erb"
Restart service
owner "root"
when config file
group "root"
changes
mode 0644
notifies :restart, resources(:service => "ntp")
end
service "ntp" do
action :start Define service and
end start NTP
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
13. Chef and Vagrant sitting in a tree
+
Let’s use Vagrant to create a virtual
machine to test our Chef configuration
14. Let’s go
• Install Oracle’s VirtualBox
www.virtualbox.org/wiki/Downloads
• Install Vagrant (packages for Windows, Mac, Linux)
downloads.vagrantup.com
• Assuming you have git
$ git clone git@github.com:salgo/cakefest-vagrant-chef.git
$ cd cakefest-vagrant-chef
$ ./git-fetch-submodules.sh
$ vagrant up
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”
16. But that is it.
• Questions?
• @andygale on Twitter
• andy-gale.com on the Web
