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A DevOps Success Story
@matiasfrndz
DevOps Enthusiast Meetup Zürich – 2017-04-04
The Purposeof a Business
value
pay
business
customer
The Three Waysof DevOps
Dev Ops
business
customer
Dev Ops
Flow
FeedbackContinual
Learning & Experimentation
Experience Report
The Company• Hosting provider based in Switzerland
• Specialised in highly available and scalable platforms
• Approx. 1’500 servers in 3 data centres
• Approx. 16’000 checks/metrics collected every 5 min.
• Powering revenue of CHF 2 billion per year
• 24/7 operations with on-call rotation
2011 – The Beginning
• Approx. 10 people in 1 team
• Wide range of customer segments (B2B, B2C)
• No documented processes
• No defined service portfolio
Getting Into the Flow
Dev Ops
Scrum vs. Kanban
Choosing the Right Team
• Find innovators and early adopters
• Build critical mass & silent majority
• Identify holdouts
– Ron van Kemenade, CIO of ING
“Leading change requires courage, especially in corporate environments
where people are scared and fight you. But if you start small, you really have nothing to fear. Any leader needs to be brave enough to allocate teams to some
calculated risk-taking.”
Our First Deployment Pipeline
Configuration as Code
Service Oriented Architecture (SOA)
The Strangler Pattern
https://continuousdelivery.com/implementing/architecture/
Team Retrospectives
Day-to-Day Businessversus
Project Work
–The DevOps Handbook
“Improvement of daily work is more important than daily work itself.”
Increasing Focusby introducing aService Portfolio
Enabling Feedback
Dev Ops
Our First Telemetry Pipeline
dashing.io
Nagios+
check_mk
Wow!
Git Branching Model
• Trunk based Development
• Feature branches
• Pull requests
Improved Feedback Loop
Dev Ops
Nagios + check_mk
DevDayswith Customers
Hypothesis Driven Development
• We Believe that increasing the size of hotel images on the booking page
• Will Result in improved customer engagement and conversion
• We Will Have Confidence To Proceed When we see a 5% increase in customers who review hotel images who then proceed to book in forty-eight hours.
Lean Startupand the Scientific Method
Build
MeasureLearn
IdeaRequirement
Hypothesis
Data
ProductExperiment
allows collectingthe required data
required to prove the hypothesis a.k.a. empirical evidence
The Hypothesis Validation Engine
Dev Ops✓✘
✓
new:
validated:
Establishing a Culture of Learning
Dev Ops
Blameless Postmortems
High Trust Enables Experimentation and Risk Taking
Core Development Principles
• Consistency
• Explicitness over Implicitness
• The Boy Scout Rule
• Don’t Repeat Yourself (DRY)
• Zero Waste
• You Ain’t Gonna Need It (YAGNI)
Convert Local Discoveriesinto Global Improvements
• Drinking coffee together
• Brown-bag sessions
• Mandatory trainings
• Video recordings
• DevDays
• Public conferences and meetups
ChatOps
Main Successes• New hires were able to work on tickets and deploy
to production on their second working day
• New features were implemented and deployed to production within days
• New servers (physical and virtual) where deployed within 10 minutes
• Successful ISO 9001 certification
Start Your DevOps Journey Today!
–Apple, Inc. television commercial from 1997
“Because the people who are crazy enough to think they can change the world, are the ones who do.”
