xp2015 - devops and continuous value delivery with chocolate and lego

DevOps and Continuous Value Delivery

with Chocolate and LEGO

Dana Pylayeva

The 16th International Conference on Agile Software Development

@DanaPylayeva This work is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License@DanaPylayeva This work is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License

A Little Bit About Me…

http://creativecommons.org/licenses/by-sa/3.0/deed.en_US



@[email protected]

Agile CoachScrum MasterDBA ManagerSystems ArchitectJava DeveloperConference Co-ChairSpeaker, Reviewer

…and a Bit More




13:30 Part 1 Why DevOps and what is it? Cyclical value delivery (with Scrum) . Chocolate, LEGO, Scrum simulation game.

Sprint 1: What is the problem with cyclical value delivery?

Sprint 2: Move security to the right! 15:00 Break 15:30 Part 2:

Chocolate, LEGO, Scrum simulation game: Sprint 3: DevOps transformation Sprint 4: From Scrum to Continuous Delivery.

Fishbowl retrospective

About This Workshop




It Will Get Noisy – Remember the Sign!

http://commons.wikimedia.org/wiki/File:Katy_Perry_with_arm_raised,_by_medigirol.jpg




DevOps – Popularity On The Rise

USAFinland

Google Trends, Search Term “DevOps”

https://www.google.com/trends/explore#q=DevOps&geo=FI%2C%20US&cmpt=geo&tz=

Velocity Conference“10 + Deploys per Day”

DevOps Finland MeetupFounded January 2013

Worldwide




Expect innovation and speed.

Judge digital service quality on their overall experience.

Expect service providers to deliver value continuously.

What’s Driving This Interest?

Customers in 2015…




What Is DevOps?How Do You Start?

© P

hoto

by R

om

an B

ars

hay




DevOps Definitions

“A movement of people who care about developing and operating reliable, secure, high performance systems at scale.”

-Jez Humble

“A mix of patterns intended to improve collaboration between development and operations. DevOps addresses shared goals and incentives as well as shared processes and tools.” - Michael Hüttermann




Culture - embrace change and innovation

Automation - CI/CD, “infrastructure as code”

Lean - delivering value, minimizing waste, small batch sizes

Measurement - measure everything, show improvements

Sharing - information sharing and collaboration between dev and operation

CALMS Model




From Wall of Confusion to Collaboration Through

Empathy

MUST READ

DEV

OPS

MUST READ




Different Sources, Same Idea

Amplify

learning

Accelerate

feedback loop




Feedback in Scrum…




Delayed Feedback.

What is the cost of this delay?




Zoom Out. What Do You See?

DEV

OPS

OPS




Conflict of Interests

Development

Team:

Focus on delivery

Operations

Team:

Focus on Stability

Customers:

Ever-changin

g demand

s

OPS

DEV




Chocolate, LEGO, Scrum Simulation Game




Operations

TeamScru

m Team

Scrum

Team

Scrum

Team

Business

Business /

Customers

Feedback loop, Market demand

User

Story

ChocolateLEGOScrum.com Enterprise

User

Story

User

Story



@DanaPylayeva This work is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License

Role Cards.



Game Characters:

Scrum Team

Samuel Scrum

Danny Developer (4)

Tim Tester (2)

Operations Team

Sara Security Adam Admin Robert

Release

Benjamin Business

HarryHacker

Patricia Product

Observer



Animal Stock Exchange Board – Current Market Demand.

$1000



Development Environment - Sample



Our Software:

LEGO animal – software featuresChocolate – user documentation

User Story

Deployment

packageFive

small individua

l packages with a LEGO

dog and a

chocolate



• Type of an animal as per the user story.

• Each animal has a label with a number.

• Each package contains:• One Lego animal (as a

functionality)• one chocolate candy (as a

support documentation)• Content doesn’t fall out from a

package.

Sample animals: A lion and a horse

Definition of Done:




What Is The Goal of The Game?




Sprint 1: Cyclical value delivery with Scrum

Sprint 2: Optimizing Scrum teamSprint 3: DevOps transformation Sprint 4: Continuous Delivery

DevOps Transformation in Four Sprints




Limited communication between Dev and Ops.

Everyone can perform only his/her role.

Aiming to deliver a “potentially shippable product”

Number of releases is limited

Z

Sprint 1: Cyclical value delivery with Scrum




Debrief




Address the bottlenecks

Developers and Testers are cross-trained.

Security Testing – moved to beginning of the process.

First release into production. Can only be done by release engineer.

Sprint 2: Optimizing the team




Debrief



Part 2: DevOps and Continuous Value Delivery

with Chocolate and LEGO

Dana Pylayeva

The 16th International Conference on Agile Software Development


13:30 Part 1 Why DevOps and what it is? Cyclical value delivery (with Scrum) . Chocolate, LEGO, Scrum simulation game.

Sprint 1: What is the problem with cyclical value delivery?

Sprint 2: Move security to the right! 15:00 Break 15:30 Part 2:

Chocolate, LEGO, Scrum simulation game: Sprint 3: DevOps transformation Sprint 4: From Scrum to Continuous Delivery.

Fishbowl retrospective

About This Workshop




“The velocity of change in business requirements is undeniably increasing at a frightening rate for those

organizations unable to keep pace”

The Seven Habits Of Highly Effective DevOpsby Glenn O’Donnell and Kurt Bittner, Forrester Research, Inc, September 3, 2013




11.6 sec

Any idea?2011. Amazon Deployment Stats. Mean time between deployments

(on weekdays)

Source: http://assets.en.oreilly.com/1/event/60/Velocity%20Culture%20Presentation.pdf




2015. No Longer For Unicorns Only…

Macy’s, Nordstrom, GE Capital, Target, Disney,US Department of Homeland Security, IBM, Microsoft, Rally Software, Barclays Capital, Capital One, Fidelity Investments, ADP, Walmart…




What Does This Mean? A Change Again?




DevOps: Where Do We Start?




Where Do We Start?




“…ensure fast, predictable and uninterrupted flow of planned work that delivers value to the business while minimizing the impact and disruption of unplanned work, so you can provide stable, predictable and secure IT service.” ~Gene Kim, Kevin Behr, George Spafford “The Phoenix Project“

Step 1: Optimize Your Flow




Examine Your Process. Does It Look Like This?




Improve Flow – Eliminate Waste(Value Stream Mapping)




Improve Flow - Address Your Bottlenecks




1. Identify the system's constraint(s). 2. Decide how to exploit the system's constraint(s).3. Subordinate everything else to the above decision (align the whole system or organization to support the decision made above).4. Elevate the system's constraint(s) (make other major changes needed to increase the constraint's capacity).5. Rinse and Repeat:Warning! If in the previous steps a constraint has been broken, go back to step 1, but do not allow inertia to cause a system's constraint.

Theory of Constraints. Systems Thinking.




Different Types of Bottlenecks:

Tools People Policy




Continuously Expand Your Skills!




Scrum Team

Dev Ops

Step2: Fast-Track the Feedback Loop




Feedback

Dev Ops

Scrum Team

Bring Operations In!




Automate Manual Steps

ANYONE CAN DEPLOY

ANYONE CAN BUILD and PROVISION ENVIRONMENTS

DevOps




First steps towards DevOps Improving the flow: Building T-shaped skills Accelerate Feedback – Automating deployments

Sprint 3: Optimizing the System




Debrief




What’s Next?

…Our highest priority is to satisfy the customerthrough early and continuous delivery of valuable software…

Agile Manifesto




Continuous delivery is a software development strategy that optimizes your delivery process to get high-quality, valuable software delivered as quickly as possible.

~Jez Humble

Step 3 - Continuous Delivery



"Continuous Delivery process diagram“ by Jez Humble - http://continuousdelivery.com/2010/02/continuous-delivery/. Licensed under CC BY-SA 1.0 via Wikimedia Commons -


Accelerated time to market Ability to get fast feedback and validate

assumptions Increased quality Minimized customer impact (with blue-green

deployments, canary ( incremental) releases, roll forward approach)

Advantages of CD




Reducing batch sizes. Simplifying deployment

process Implementing

continuous delivery of value.

Sprint 4: Continuous Delivery




Fishbowl Retrospective




1.DevOps is about creating a fast flow of work through organization.

2.DevOps is about amplified feedback loop.

3.DevOps is about experimentation, repetitions and practice.

4.DevOps is about changing the culture.

If You Only Remember Four Things:



xp2015 - devops and continuous value delivery with chocolate and lego

Technology

creative commons attribution

devops transformation

continuous value delivery

cyclical value delivery

scrum simulation game

day devops finland meetup

continuous delivery

search term devops https