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http://jedi.be/blogPatrick Debois
OPSDEV
When I was a young developer
http://www.flickr.com/photos/ninahiironniemi/1118868590/sizes/l/
http://1000awesomethings.files.wordpress.com/2008/11/campfire.jpg
I loved to develop
simple applications
http://www.rookgordijn.net/wp-content/uploads/2009/08/Texel_21.JPG
I kept my own little server going
http://www.foodgeekery.com/fullimg/ribfest09-cowboy2.jpg
Most of the time , the results were fine
http://www.flickr.com/photos/abbyladybug/2644163076/sizes/l/
Sometimes the applications would crash
and I didn’t really kno...
http://www.motoer75.nl/images/BBQ2009030.jpg
But overall my friends seemed to like my work
http://www.bfeedme.com/wp-content/uploads/2007/07/legends-of-texas-bbq-cookbook-of-the-day-7-30-07.jpg
I learned from the ...
http://www.freepatentsonline.com/6557545-0-large.jpg
Read about
software
architecture
http://patiopalace.com/assets/images/gas-grills/webber/certifiedexperts3.jpg
I even got my Scrum certification
http://www.flickr.com/photos/tradica/3071394619/sizes/l/
Still I was experiencing the occasional problems
I blamed the
operations guys
http://media.photobucket.com/image/bbq%20cowboy/NotleyQue/The%20BBQ%20Family/CowboyChili.jpg
I decided to leave the cowboys
http://www.flickr.com/photos/iimaj/3959147070/sizes/o/
And make plans of my own
http://www.flickr.com/photos/brachiator/107510145/sizes/l/
I really wanted to focus on the customer
http://www.dongeovanny.com/images/meatpage2kobe.jpg
I had the developers use
the coolest programming languages
http://www.bbqsaucereviews.com/wp-content/uploads/2009/06/bbqsaucereview-001.jpg
Use the best frameworks available
http://jeffreysmeatmarketblog.files.wordpress.com/2009/06/picture-4-3-0412.jpg
We had the
DBA’s take
care of the
database
s...
http://www.flickr.com/photos/jayneandd/4078134280/sizes/l/http://www.flickr.com/photos/bhamsandwich/3601018752/sizes/l/
Expl...
http://lovefeasttable.com/blog/wp-content/uploads/2009/05/may09c067.jpg
Up until now we had
done only some
manual checks.
http://www.flickr.com/photos/cookthink/210948100/sizes/l/
So we moved to
unit tests
http://blogs.suntimes.com/food/4-29_white_BBQ_1.jpg
Even Behavior Driven Development
We were still
experiencing problems
with our application
servers.
http://www.flickr.com/photos/80417459@N00/2056898218/
We brought in bigger storage boxes
http://euroross.blogspot.com/bbq.jpg
gave the
sysadmins the
biggest servers
http://propanesmoker.org/wp-content/uploads/2009/11/Propane_smoker.jpg
created virtual
machines to
create different
enviro...
http://www.bbqpits.com/people_of_bbq/greg_nj3.jpg
Used the cloud to solve some scalability problems
http://www.flickr.com/photos/theogeo/3317291208/sizes/l/in/photostream/
Still the customer wasn’t happy
http://www.funnypictures.net.au/images/firefighter-bbq1.jpg
And the IT department was firefighting all the time
http://www.flickr.com/photos/atesca/2457127172/sizes/l/
Then there was a complete power failure
http://www.flickr.com/photos/zanyflash/2278286656/sizes/o/
Nobody had checked the power installation
http://www.flickr.com/photos/cirox/363284194/sizes/l/
Leaving the application in an unknown state
http://badgerdiary.files.wordpress.com/2008/12/closed-sign-smer.jpg
Resulting again in a major outage
http://www.nonplusultra.nl/data/producten/12727-groot.jpg
Our small fixes would not help anymore
http://www.proexotics.com/faq_images/soaking_water_monitor.jpg
All backups were corrupt because we could only backup
prope...
http://www.flickr.com/photos/jmv/16366498/sizes/o/
Luckily we had a cold Standby Backup
kr.com/photos/tom-poes/60373623/
Time to
take a
step back
http://allwecaneat.files.wordpress.com/2008/08/_igp7826_sm.jpg
We worked hard on
minimizing technical debt in our code
http://www.eggcookers.net/images/pictures/progressive-stainless-steel-bbq-tongs-bbq505.jpg
http://ecx.images-amazon.com/im...
http://www.flickr.com/photos/wiphey/66525468/sizes/o/
Put monitoring in
our development
and test
environment
http://3.bp.blogspot.com/_ySMs_t20v08/Sw8m5JjVg1I/AAAAAAAAAFQ/jr2nXJYSfbI/s1600/DSC_4835.jpg
Reused it in the production e...
http://weblog.greenpeace.org/makingwaves/welldone430.jpg
Implemented scaling from the ground up
http://www.universalbarbeque.com/images/untitled-2_copy.jpg
We made deployment reproducible
http://www.flickr.com/photos/cjscott69/400160562/sizes/l/
Improved the way to collect metrics
http://www.flickr.com/photos/namealus/3114627540/
To offload some of the appservers
we installed a caching system
http://www.flickr.com/photos/benchilada/4231838748/sizes/l/
And loadbalancers solved the webserver scaling problem
http://www.izzysburgerspa.com/images/uploaded/image/Delivery%20Truck%201.jpg
Content Delivery Networks
http://strongdogz.com/wp-content/uploads/2008/09/beauceron.jpg
Made our application security proof
http://www.flickr.com/photos/loop_oh/3086747855/sizes/o/
Comply to
regulations
http://www.mzmfarm.net/linked/img_3507.jpg
Integrated backups on the application level
http://carrotsncake.com/wp-content/uploads/2009/03/img_6705.jpg
Solved the multi-user problem problem
For some know
states
We would automatically
reset the system
Self healing on our database
http://assets.whirlpool.com/files...
So you want to be a great agile chef?
http://www.damniwish.com/wp-content/uploads/2009/12/IMG_1265.jpg
Software Infrastructure
Presentation
Operations
Testing
P...
It’s not about the
software
It’s not about the
hardware
I like my
servers, software
steak well done
http://www.flickr.com/photos/spenceke/2250116189/sizes/l/
IT Tooling is changing
Virtualization
• kvm
• xen
• solaris zones
• vmware
• virtualbox
• ...
Cloud showed
us how to scale
Abstraction API
http://www.jclouds.org/
Adrian Cole
@jclouds
http://libvirt.org/
Platform as a Service
Hudson as Service
http://www.cloudbees.com/
But who will
manage
your IAAS
platform?
First steps of
Automation
https://fedorahosted.org/cobbler/
http://spacewalk.redhat.com/
http://fai-project.org/
Cloning
Virtual Sprawl
Configuration
Management
Chef
Pallet
http://www.cfengine.org/
http://www.puppetlabs.com
http://www.opscode.com/chef
https:/...
# tomcat.pp
class tomcat {
! package {
! ! "java-1.6.0-sun-compat":
! ! ! ensure => "installed";
! ! "tomcat6":
! ! ! requ...
Model Driven Infrastructure
https://github.com/lusis/vogeler
John E.Vincent
@lusis
Definition
of your
infrastructure
Version Control
Reusable
components
https://github.com/camptocamp
Code/Server Smells
Private!Playground
The sysadmin uses the system as his toy
playground, doesn't clean up.
• /tmp & /var/...
Sharing Recipes/Code
http://forge.puppetlabs.com/
http://cookbooks.opscode.com/
Automation
without tests is
Lindsay Holmwood
@auxesis
Feature: google.com
It should be up
And I should be able to search for things
Scenario: Searchin...
Lindsay Holmwood
@auxesis
Scenario: Checking /etc/passwd
When I ssh to "example.org" with the following credentials:
| use...
Julian Simpson
@builddoctor
apache.feature
Feature:
In order to deploy my application
As a systems administrator
I want to...
Feature: cucumber-puppet
In order to run my puppet manifest's test suite
As an admin
I want the cucumber-puppet gem instal...
Orchestration
http://controltier.com/ http://marionett-collective.org
@ripienaar@damonedwards
Vagrant
http://vagrantup.com/
Allows an easy way
to use the production recipes
in your own dev environment
Mitchell Hashim...
IAAS and PAAS blurring
Pull in both your recipes and your code
http://blog.crisp.se/henrikkniberg/2008/07/14/1216002720000.html
Agile
Infrastructure
&
Agile
Sysadmin
Comparing
Agile and ITIL
http://www.winstonind.com/images/brands/traditional_cooking_process.gif
Agile ITIL
Certifications
Process
Fundamentalism
Manifesto’s for the world
Meat Cloud Manifesto
Agile Manifesto
== Rules ==
On Infrastructure
—————–
There is one system, n...
Truck Factor
The number of people on your team
who have to be hit with a truck before
the project is in serious trouble
Th...
Backlog of items
• User Stories
• Features
• Tickets
• Incidents
• Problems
Requirements
• Login/Logout
• Print order
• CRUD order
• Security
• Capacity
• Stability
• Scalability
Functional
Non-Func...
BusinessValue
Ordered by
the value gained
Ordered by the value
protected
Increase Change Avoid Change
Proxy
Customers
Service
Manager
Understand what the
business wants
Support the team
Scrum Manager
Service Delivery
Manager
Product
Owner1
Ideally one
product owner
Product
Owner2
Product
Owner3
Development Team
Project1 Project 2 Project 3
Opera...
Outsourcing
Call Centers
Outsourced
Development
Specialist & Generalists
Rockstar Mentality
Testers UI
Designers
Frontend
Backend
Analysts
Security
Network
Storage
Sysadm...
Global Ownership
It’s the
javascript
It’s the
backend
It’s the
database
It’s the
network
It’s the
server
It’s the
storage
Sprint Review
Meeting
Change Advisory
Board
Approve Changes
Iterations & Flow
Kanban
1day sprints
Operations
Sprint
Velocity
Service
Levels
Team Approved
Estimate
Improves over time
Story
Points
Uptime 99%
Continuous Improvement
Lean Thinking
Lean ITIL
Lean
Software
Development
Value Stream Mapping
Technical waste
What’s new?
I know
all that
The map
is not
the territory
Alfred Korzybski
Systems Thinking
Optimize the whole not
just the individual parts
People make it happen
Culture & Mindset
Collaboration
Testers
Analysts
Developers
Security
Architects
UI
Designers
Network
Sysadmins
not only when things go wrong
No rock star mentality
Mine are bigger then yours
Craftsmanship
Trust
It’s about customer
value
http://www.flickr.com/photos/spenceke/2250116189/sizes/l/
Interesting Books
Want to know more?
#devops on twitter & irc
http://devopsdays.org
http://devopscafe.org
http://planetdevops.net
devops goo...
The End
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Devops: The War is over - If you want it

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This presentation is the combination of the talks I gave at ScrumNL about using Scrum in Operations and the talk at Xpdays Benelux 2010.
It tries to highlight both the blurring lines between development operations. Both by the similarities in the tools being used, and the methodologies are used (Scrum, ITIL). It should not be fight about my methodology is better then yours, focus on the common things and work together.

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Transcript of "Devops: The War is over - If you want it"

  1. 1. http://jedi.be/blogPatrick Debois OPSDEV
  2. 2. When I was a young developer http://www.flickr.com/photos/ninahiironniemi/1118868590/sizes/l/
  3. 3. http://1000awesomethings.files.wordpress.com/2008/11/campfire.jpg I loved to develop simple applications
  4. 4. http://www.rookgordijn.net/wp-content/uploads/2009/08/Texel_21.JPG I kept my own little server going
  5. 5. http://www.foodgeekery.com/fullimg/ribfest09-cowboy2.jpg Most of the time , the results were fine
  6. 6. http://www.flickr.com/photos/abbyladybug/2644163076/sizes/l/ Sometimes the applications would crash and I didn’t really know why
  7. 7. http://www.motoer75.nl/images/BBQ2009030.jpg But overall my friends seemed to like my work
  8. 8. http://www.bfeedme.com/wp-content/uploads/2007/07/legends-of-texas-bbq-cookbook-of-the-day-7-30-07.jpg I learned from the pro’s
  9. 9. http://www.freepatentsonline.com/6557545-0-large.jpg Read about software architecture
  10. 10. http://patiopalace.com/assets/images/gas-grills/webber/certifiedexperts3.jpg I even got my Scrum certification
  11. 11. http://www.flickr.com/photos/tradica/3071394619/sizes/l/ Still I was experiencing the occasional problems
  12. 12. I blamed the operations guys
  13. 13. http://media.photobucket.com/image/bbq%20cowboy/NotleyQue/The%20BBQ%20Family/CowboyChili.jpg I decided to leave the cowboys
  14. 14. http://www.flickr.com/photos/iimaj/3959147070/sizes/o/ And make plans of my own
  15. 15. http://www.flickr.com/photos/brachiator/107510145/sizes/l/ I really wanted to focus on the customer
  16. 16. http://www.dongeovanny.com/images/meatpage2kobe.jpg I had the developers use the coolest programming languages
  17. 17. http://www.bbqsaucereviews.com/wp-content/uploads/2009/06/bbqsaucereview-001.jpg Use the best frameworks available
  18. 18. http://jeffreysmeatmarketblog.files.wordpress.com/2009/06/picture-4-3-0412.jpg We had the DBA’s take care of the database schemas
  19. 19. http://www.flickr.com/photos/jayneandd/4078134280/sizes/l/http://www.flickr.com/photos/bhamsandwich/3601018752/sizes/l/ Explained them that User Interface is important
  20. 20. http://lovefeasttable.com/blog/wp-content/uploads/2009/05/may09c067.jpg Up until now we had done only some manual checks.
  21. 21. http://www.flickr.com/photos/cookthink/210948100/sizes/l/ So we moved to unit tests
  22. 22. http://blogs.suntimes.com/food/4-29_white_BBQ_1.jpg Even Behavior Driven Development
  23. 23. We were still experiencing problems with our application servers.
  24. 24. http://www.flickr.com/photos/80417459@N00/2056898218/ We brought in bigger storage boxes
  25. 25. http://euroross.blogspot.com/bbq.jpg gave the sysadmins the biggest servers
  26. 26. http://propanesmoker.org/wp-content/uploads/2009/11/Propane_smoker.jpg created virtual machines to create different environments
  27. 27. http://www.bbqpits.com/people_of_bbq/greg_nj3.jpg Used the cloud to solve some scalability problems
  28. 28. http://www.flickr.com/photos/theogeo/3317291208/sizes/l/in/photostream/ Still the customer wasn’t happy
  29. 29. http://www.funnypictures.net.au/images/firefighter-bbq1.jpg And the IT department was firefighting all the time
  30. 30. http://www.flickr.com/photos/atesca/2457127172/sizes/l/ Then there was a complete power failure
  31. 31. http://www.flickr.com/photos/zanyflash/2278286656/sizes/o/ Nobody had checked the power installation
  32. 32. http://www.flickr.com/photos/cirox/363284194/sizes/l/ Leaving the application in an unknown state
  33. 33. http://badgerdiary.files.wordpress.com/2008/12/closed-sign-smer.jpg Resulting again in a major outage
  34. 34. http://www.nonplusultra.nl/data/producten/12727-groot.jpg Our small fixes would not help anymore
  35. 35. http://www.proexotics.com/faq_images/soaking_water_monitor.jpg All backups were corrupt because we could only backup properly when the application was down
  36. 36. http://www.flickr.com/photos/jmv/16366498/sizes/o/ Luckily we had a cold Standby Backup
  37. 37. kr.com/photos/tom-poes/60373623/ Time to take a step back
  38. 38. http://allwecaneat.files.wordpress.com/2008/08/_igp7826_sm.jpg We worked hard on minimizing technical debt in our code
  39. 39. http://www.eggcookers.net/images/pictures/progressive-stainless-steel-bbq-tongs-bbq505.jpg http://ecx.images-amazon.com/images/I/41wSaS%2BMy8L.jpg We started to improve our deployment tools
  40. 40. http://www.flickr.com/photos/wiphey/66525468/sizes/o/ Put monitoring in our development and test environment
  41. 41. http://3.bp.blogspot.com/_ySMs_t20v08/Sw8m5JjVg1I/AAAAAAAAAFQ/jr2nXJYSfbI/s1600/DSC_4835.jpg Reused it in the production environment
  42. 42. http://weblog.greenpeace.org/makingwaves/welldone430.jpg Implemented scaling from the ground up
  43. 43. http://www.universalbarbeque.com/images/untitled-2_copy.jpg We made deployment reproducible
  44. 44. http://www.flickr.com/photos/cjscott69/400160562/sizes/l/ Improved the way to collect metrics
  45. 45. http://www.flickr.com/photos/namealus/3114627540/ To offload some of the appservers we installed a caching system
  46. 46. http://www.flickr.com/photos/benchilada/4231838748/sizes/l/ And loadbalancers solved the webserver scaling problem
  47. 47. http://www.izzysburgerspa.com/images/uploaded/image/Delivery%20Truck%201.jpg Content Delivery Networks
  48. 48. http://strongdogz.com/wp-content/uploads/2008/09/beauceron.jpg Made our application security proof
  49. 49. http://www.flickr.com/photos/loop_oh/3086747855/sizes/o/ Comply to regulations
  50. 50. http://www.mzmfarm.net/linked/img_3507.jpg Integrated backups on the application level
  51. 51. http://carrotsncake.com/wp-content/uploads/2009/03/img_6705.jpg Solved the multi-user problem problem
  52. 52. For some know states We would automatically reset the system Self healing on our database http://assets.whirlpool.com/files/usr/970/FilterReset5.jpg
  53. 53. So you want to be a great agile chef?
  54. 54. http://www.damniwish.com/wp-content/uploads/2009/12/IMG_1265.jpg Software Infrastructure Presentation Operations Testing Project #1 care for the whole lifecycle #2 look at it from a business perspective #3 work together as a team
  55. 55. It’s not about the software It’s not about the hardware
  56. 56. I like my servers, software steak well done http://www.flickr.com/photos/spenceke/2250116189/sizes/l/
  57. 57. IT Tooling is changing
  58. 58. Virtualization • kvm • xen • solaris zones • vmware • virtualbox • ...
  59. 59. Cloud showed us how to scale
  60. 60. Abstraction API http://www.jclouds.org/ Adrian Cole @jclouds http://libvirt.org/
  61. 61. Platform as a Service
  62. 62. Hudson as Service http://www.cloudbees.com/
  63. 63. But who will manage your IAAS platform?
  64. 64. First steps of Automation https://fedorahosted.org/cobbler/ http://spacewalk.redhat.com/ http://fai-project.org/
  65. 65. Cloning
  66. 66. Virtual Sprawl
  67. 67. Configuration Management Chef Pallet http://www.cfengine.org/ http://www.puppetlabs.com http://www.opscode.com/chef https://github.com/ hugoduncan/pallet
  68. 68. # tomcat.pp class tomcat { ! package { ! ! "java-1.6.0-sun-compat": ! ! ! ensure => "installed"; ! ! "tomcat6": ! ! ! require => [Package["java-1.6.0-sun-compat"], Package["ntc-tomcat-log4j"]], ! ! ! ensure => "installed"; ! ! "tomcat6-admin-webapps": ! ! ! ensure => "installed"; ! ! "log4j": ! ! ! ensure => "installed"; ! ! "tanukiwrapper": ! ! ! ensure => "installed"; ! ! "mysql-connector-java": ! ! ! ensure => "installed"; ! } ! file { ! ! "/etc/init.d/tomcat6": mode => "0755", owner => "root", group => "root", source => "puppet:///tomcat/tomcat6.init"; } ! user { ! ! "tomcat": ! ! ! ensure => "present", ! ! ! require => Package["tomcat6"]; ! } }! Infrastructure as code
  69. 69. Model Driven Infrastructure
  70. 70. https://github.com/lusis/vogeler John E.Vincent @lusis Definition of your infrastructure
  71. 71. Version Control
  72. 72. Reusable components https://github.com/camptocamp
  73. 73. Code/Server Smells Private!Playground The sysadmin uses the system as his toy playground, doesn't clean up. • /tmp & /var/tmp full of old install files • / full of files Gready!Server One server that does every function • combined mail and web and dns and fileshares • all users on the same system Root is the cause of all!evil • last show login all root • no sudo is activated • no sshd keys for logins • nfs share/root? • Chmod 777 • most processes run as root
  74. 74. Sharing Recipes/Code http://forge.puppetlabs.com/ http://cookbooks.opscode.com/
  75. 75. Automation without tests is
  76. 76. Lindsay Holmwood @auxesis Feature: google.com It should be up And I should be able to search for things Scenario: Searching for things When I visit "http://www.google.com" And I fill in "q" with "wikipedia" And I press "Google Search" Then I should see "www.wikipedia.org" $ cucumber-nagios google.feature Critical: 0, Warning: 0, 4 okay | passed=4, failed=0 cucumber-nagios
  77. 77. Lindsay Holmwood @auxesis Scenario: Checking /etc/passwd When I ssh to "example.org" with the following credentials: | username | password | keyfile | | jacob | spifeofstrife | /home/jacob/.ssh/id_dsa | And I run "cat /etc/passwd" Then I should see "jacob" in the output cucumber-ssh
  78. 78. Julian Simpson @builddoctor apache.feature Feature: In order to deploy my application As a systems administrator I want to know that the config files are legal Scenario: Valid Apache config Given a config file template apache2.conf in etc/apache2 When I generate it Then there should be a file called apache2.conf in etc/ap And it should be valid cucumber-apache http://pastie.org/693713
  79. 79. Feature: cucumber-puppet In order to run my puppet manifest's test suite As an admin I want the cucumber-puppet gem installed Scenario: Install cucumber-puppet Given a node of class "cucumber-puppet" When I compile the catalog Then gem "cucumber-puppet" should be "installed" https://github.com/nistude/cucumber-puppet cucumber-puppet Nikolay Sturm @nistude
  80. 80. Orchestration http://controltier.com/ http://marionett-collective.org @ripienaar@damonedwards
  81. 81. Vagrant http://vagrantup.com/ Allows an easy way to use the production recipes in your own dev environment Mitchell Hashimoto @mitchellh
  82. 82. IAAS and PAAS blurring Pull in both your recipes and your code
  83. 83. http://blog.crisp.se/henrikkniberg/2008/07/14/1216002720000.html Agile Infrastructure & Agile Sysadmin
  84. 84. Comparing Agile and ITIL http://www.winstonind.com/images/brands/traditional_cooking_process.gif Agile ITIL
  85. 85. Certifications
  86. 86. Process Fundamentalism
  87. 87. Manifesto’s for the world Meat Cloud Manifesto Agile Manifesto == Rules == On Infrastructure —————– There is one system, not a collection of systems. The desired state of the system should be a known quantity. The “known quantity” must be machine parseable. The actual state of the system must self-correct to the desired state. The only authoritative source for the actual state of the system is the system The entire system must be deployable using source media and text files. On Buying Software ——————- ..... James White Manifesto
  88. 88. Truck Factor The number of people on your team who have to be hit with a truck before the project is in serious trouble The ability to take a random machine in your infrastructure , drop it from the 10th floor, and be able to restore your infrastructure to working within 5-10 minu 10th floor test
  89. 89. Backlog of items • User Stories • Features • Tickets • Incidents • Problems
  90. 90. Requirements • Login/Logout • Print order • CRUD order • Security • Capacity • Stability • Scalability Functional Non-Functional
  91. 91. BusinessValue Ordered by the value gained Ordered by the value protected Increase Change Avoid Change
  92. 92. Proxy Customers Service Manager Understand what the business wants
  93. 93. Support the team Scrum Manager Service Delivery Manager
  94. 94. Product Owner1 Ideally one product owner Product Owner2 Product Owner3 Development Team Project1 Project 2 Project 3 Operations ManagerScrum Master Operations Team
  95. 95. Outsourcing Call Centers Outsourced Development
  96. 96. Specialist & Generalists Rockstar Mentality Testers UI Designers Frontend Backend Analysts Security Network Storage Sysadmins
  97. 97. Global Ownership It’s the javascript It’s the backend It’s the database It’s the network It’s the server It’s the storage
  98. 98. Sprint Review Meeting Change Advisory Board Approve Changes
  99. 99. Iterations & Flow
  100. 100. Kanban
  101. 101. 1day sprints Operations
  102. 102. Sprint Velocity Service Levels Team Approved Estimate Improves over time Story Points Uptime 99%
  103. 103. Continuous Improvement Lean Thinking Lean ITIL Lean Software Development
  104. 104. Value Stream Mapping
  105. 105. Technical waste
  106. 106. What’s new? I know all that
  107. 107. The map is not the territory Alfred Korzybski
  108. 108. Systems Thinking Optimize the whole not just the individual parts
  109. 109. People make it happen
  110. 110. Culture & Mindset
  111. 111. Collaboration Testers Analysts Developers Security Architects UI Designers Network Sysadmins not only when things go wrong
  112. 112. No rock star mentality Mine are bigger then yours
  113. 113. Craftsmanship
  114. 114. Trust
  115. 115. It’s about customer value http://www.flickr.com/photos/spenceke/2250116189/sizes/l/
  116. 116. Interesting Books
  117. 117. Want to know more? #devops on twitter & irc http://devopsdays.org http://devopscafe.org http://planetdevops.net devops googlegroup devops-toolchain googlegroup
  118. 118. The End
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