TDI with ChefDK 0.0.1

Transcript

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   Testing Cookbooks

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   Sean OMeara! someara@getchef.com! @someara

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   whoami

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   Writing Cookbooks

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   Are we done?

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   Testing Cookbooks

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    Slightly more involved.

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    The Basics http://www.flickr.com/photos/jronaldlee/5295169486/

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    Run the recipe See what happens

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    Manual techniques Automated techniques

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    CLI IS BETTER

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    ChefDK

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    Our toolchain is in Ruby

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    Standard Ruby dev setups are tricky to install

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    System Ruby! RVM! chruby

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    cd project ; bundle install

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    Put the code in the can.

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    OMNIBUS ChefDK! ! Stable toolchain in an Omnibus installer

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    Ruby! Chef! Test Kitchen! kitchen-vagrant! Berkshelf! Foodcritic! Rubocop! ChefSpec

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    Converge Testing

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    CaaP! vs! IaaP

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    Cookbook as a Project! vs! Infrastructure as a Project

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    no chef-repo

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    battery not included

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    kitchen-vagrant! kitchen-docker! kitchen-ec2! kitchen-rackspace! kitchen-gce! kitchen-digitalocean! kitchen-openstack! kitchen-bluebox! kitchen-joyent! kitchen-lxc

    also available
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    Integration Testing ttps://www.flickr.com/photos/kitsa_sakurako/439652830

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    Test that a set of resources have achieved their combined

    goal
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    { testable intent

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    Test Kitchen runs integration tests out of band of Chef

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    It does this with bussers

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    Bats! Serverspec! Minitest! Cucumber

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    suite busser

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    kitchen test! ! kitchen converge! kitchen verify! kitchen destroy

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    test tear down

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    Style Testing

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    Ruby level style enforcement

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    single quotes space after comma no trailing whitespace

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    Chef level style enforcement

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    http://www.flickr.com/photos/40389360@N00/2428706650/ Regression Testing

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    ChefSpec makes assertions about compiled resource collections

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    REFERENCE SLIDE

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    https://github.com/opscode-cookbooks/yum https://github.com/opscode-cookbooks/mysql Reference Cookbooks https://github.com/opscode-cookbooks/jenkins https://github.com/opscode-cookbooks/yum-epel

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    Cookbook Dependencies

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    Often, a cookbook will depend on another

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    include_recipe ‘another_cookbook::recipe’! ! OR! ! consume a resource shipped in

    another_cookbook
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    For example

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    not in core Chef

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    ships in mysql cookbook

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     Dependencies suck and you don’t want to manage them manually.

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     Berkshelf is bundler for Chef cookbooks

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     your chef-server here

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     Bundler installs dependencies into your local gem cache

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     Berkshelf installs dependencies into your local cookbook cache

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     needs moar ServerSpec

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     Continuous Integration

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     This is all driven from the command line

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     Which makes it super easy to wire into CI systems

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     CI should watch version control for commits

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     Polling! vs! Notifications

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     I ran out of slides!