The document discusses tools for DevOps. It begins with an introduction to the DevOps culture and how it aims to bridge developers and operations teams. It then discusses several tools for implementing DevOps practices, including automated infrastructure tools like Puppet and Chef for configuration management. The presenter gives an overview of Puppet and Chef and demonstrates how to set up a Ruby on Rails stack using Chef and Amazon EC2.

1. CODECAMP 2012 @hurrycane
Saturday, March 10, 12

2. Infrastructure as code
Tools for DevOps
Bogdan Gâza
CODECAMP 2012 @hurrycane
Saturday, March 10, 12

3. $ whoami
Student at Faculty of Computer Science, Iasi, Romania
https://github.com/sferik/rails_admin
bogdan.gaza@info.uaic.ro
@hurrycane
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4. Agenda
DevOps Culture
Tools for devops
Automated infrastructure
Demo
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5. Devs
vs
Ops
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6. The team
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7. Dev Ops Dev Ops
The team
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8. Ops
Ops’ job is to keep the site stable and fast
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9. Dev
Dev’s job is to add new features
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10. Discourage change to increase stability
VS
Allow change as soon as it’s needed.
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11. The blame game
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12. Lowering risk of change
through tools and culture
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13. Ops who think like devs
Devs who think like ops
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14. DevOps
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15. Tools for DevOps
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16. Tools for DevOps
• Automated infrastructure
• Shared version control
• One step build / deploy
• Always ship trunk
• Shared metrics
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17. Automated infrastructure
Reconstructing of the application from
source code repository
application data backup
bare metal resources.
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18. In cloud environments:
Role &
Configuration
Management
OS Imaging
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19. Automated infrastructure
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20. Minions
Automated infrastructure
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21. Automated infrastructure
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22. Puppet
A tour of puppet
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23. Puppet
Modules Puppet Master Configuration
Node Node Node Node
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24. Puppet
node 'codecamp.ro' {
package { 'ruby'
ensure => 'latest'
}
}
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25. Puppet
yum install ruby
apt-get install ruby
ports install ruby
rpm -Uvh ruby-1.8.7.i386.rpm
up2date ruby
fink install ruby
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26. Chef
A tour of chef
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27. Chef
Coobooks Chef Server
Chef Chef Chef Chef
client client client client
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28. Chef
Each system that has chef-client
installed is called a node
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29. Chef
Each node has attributes.
{
"kernel" : {
"machine" : "x86_64",
"os" : "Darwin",
"release" : "10.7.3"
},
"ipaddress" : "192.168.0.12",
"hostname" : "latte"
}
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30. Chef
Each node has a Run list in which each Role is applied
{
"runlist" : [
"role[webserver]",
"role[database_master]",
"role[development]"
]
}
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31. Chef
To describe a state of your node you use Resources
package "ruby" do
version '1.8.7',
action 'install'
end
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32. Chef
Cookbook directory
.
!"" metadata.rb
!"" recipes
# %"" default.rb
%"" templates
%"" default
%"" port_ssh.erb
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33. Demo
Setting up a Ruby on Rails stack using Chef and EC2
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34. QA
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35. Thanks!
And please don’t forget the evaluation form!
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