Demonstrate how to use chef, the open source system integration framework.

1. Cook like a Chef
Who? Ian Yang
From? Intridea Inc.
When? December 20, 2011

2. Contents
1 What is Chef
2 How Chef Works
3 How to Use Chef
4 Example

3. Outline
1 What is Chef
2 How Chef Works
3 How to Use Chef
4 Example

4. What is Chef
a person who cooks
professionally

5. What is Chef
an open-source system
integration framework that
cooks your servers
professionally

6. Figure: What is Chef from Chef Wiki

7. Outline
1 What is Chef
2 How Chef Works
3 How to Use Chef
4 Example

8. Figure: Arch Intro from Chef Wiki

9. Components
chef Gem of client/solo run-time
and CLI tools.

10. Components
chef Gem of client/solo run-time
and CLI tools.
chef-server Gem of server run-time

11. Components
chef Gem of client/solo run-time
and CLI tools.
chef-server Gem of server run-time
Chef Repo Blank repo template

12. Components
chef Gem of client/solo run-time
and CLI tools.
chef-server Gem of server run-time
Chef Repo Blank repo template
Community Cookbooks hosting site

13. Solo Workflow
1 Collect Node info (ohai)

14. Solo Workflow
1 Collect Node info (ohai)
2 Get Node configuration data

15. Solo Workflow
1 Collect Node info (ohai)
2 Get Node configuration data
3 Run specified Recipes with
Node info and configuration
data

16. Recipes
Recipes configuration steps by
Resources

17. Recipes
Recipes configuration steps by
Resources
Resources cross platform abstraction of
tasks

18. Recipes
Recipes configuration steps by
Resources
Resources cross platform abstraction of
tasks
Providers actually execute the Resources

19. Git Recipe
1 case node [: platform ] # node info
2 when " debian " , " ubuntu "
3 # package is a resource
4 package " git - core "
5 else
6 package " git "
7 end

20. Outline
1 What is Chef
2 How Chef Works
3 How to Use Chef
4 Example

21. Start from Chef Repo
1 gem install chef
2 gh clone opscode chef - repo

22. Read existing
Cookbooks
Figure: Opscode Community
http://community.opscode.com/

23. Cookbook
Definition Collection of
Attributes

24. Cookbook
Definition Collection of
Attributes
Recipes

25. Cookbook
Definition Collection of
Attributes
Recipes
Files & Templates

26. Cookbook
Definition Collection of
Attributes
Recipes
Files & Templates
Definitions & Providers

27. Use knife
1 knife cookbook site search nginx
2 knife cookbook site install nginx
3 knife cookbook site download nginx
http://wiki.opscode.com/
display/chef/Cookbook+Site+Help

28. Wait... knife throws
errors
Create a knife config in chef
repo
Follow gist 1501318

29. Try Chef using
chef-solo
1 chef - solo -c config - file -j configuration - data
. json

30. json sample
1 {
2 " rbenv ": {
3 " rubies ": [ " 1.9.2 - p290 "],
4 " gems ": [ " bundler "]
5 },
6 " run_list ": [ " recipe [ rbenv ]" ,
7 " recipe [ nodejs ]"]
8 }

31. Outline
1 What is Chef
2 How Chef Works
3 How to Use Chef
4 Example

32. cnintridea preview
Provision vbox using vagrant
Install git, rbenv, ruby, bundler
Install and config nginx
Daemonize and monit rake
watch