This document summarizes PayPal's journey to adopting cloud computing. It discusses PayPal's goals of increasing business agility and cost efficiency through cloud adoption. PayPal built its own private cloud using OpenStack, which now supports over 160 million customers and runs 100% of PayPal's web and mid-tier services. The document also outlines PayPal's key learnings around automating deployments, managing drift over time, measuring outcomes, and fostering a culture of shared accountability between operations and development.

1. Transforming the Delivery of IT
Services, Cloud Delivery & Production
Ajay Dankar, PayPal
24-25 JUNE 2015, London, UK

2. PayPal’s Cloud Journey
Goals & Principles
Deliverables
Business Requirements
Learnings

3. Cloud Adoption @ PayPal
+ Havana
+ 12k+ hypervisors
+ 300k+ cores
+ 10+ availability zones
+ 15+ virtualprivate clouds
+ > 1.6 pb block storage
+ 100% KVM
+ 100% OVS
PayPal’s OpenStack based private cloud
serves 160+M customers for payment,
website interactions, mobile and more…
100% of PayPal web-tier and mid-tier
services run on OpenStack cloud.

4. PayPal’s Cloud Journey
Goals & Principles
Deliverables
Business Requirements
Learnings

5. Business Requirements
Journey to Cloud began in 2012 in response to specific business asks.
Business Agility Cost Efficiency EnhancedService Quality
+ Reduce time spentbetween
“code toLTS”
+ Rapid elasticity(scale up
and down asneeded)
+ Self-service
+ Standardization
+ Automation
+ Superior tothecurrentmodel

6. PayPal’s Cloud Journey
Goals & Principles
Deliverables
Business Requirements
Learnings

7. Design/Code
Goal: Enable
the Developer
1
Build/Test2
Test/Integrate3
Deploy/Monitor4

8. Cloud as the interface
for the data center
1
Improve resiliency
& efficiency of apps
2
Lights Out Management
(LOM)
3
Goal: Enable
the Business

9. Adopt Open Source
Where Possible
Avoid Vendor
Lock-In
Leverage eBay Inc.-wide
Investments
Guiding Principles

10. PayPal’s Cloud Journey
Goals & Principles
Deliverables
Business Requirements
Learnings

11. PLATFORM
AS A SERVICE
INFRASTRUCTURE
AS A SERVICE
PHYSICAL
INFRASTRUCTURE
Cloud Product Suite (Capabilities Aligned to Customer Needs)PRODUCTTEAMS
(MAJORITY)
Self-Healing
Dependencies
Deployment
Auto-Scaling
Framework
&Runtimes
System
Services DBaaS Analytics Logging Metrics Alerting Messaging
Compute SDN Storage DNS LBaaS Orchestration
Compute
ENGINEERING
&ARCHITECTS
OPS
DB Networking Firewall Storage

12. PayPal’s Cloud Journey
Goals & Principles
Deliverables
Business Requirements
Learnings

13. 2012 2015
+ A Dev/TestCloud
+ LessThanaRack of Compute
+ Handcrafted byanEngineer
+ Supported by Another Engineer
+ Zero Automation
+ Thousandsof Nodes
+ Distributed Across Several AZs
+ Automated
+ Operated 24x7
+ RunningtheBusiness

14. Treat Infrastructure As Code
1

15. Fully Automate Deployments1
Treat Automation Artifacts
Like You Treat Code
2
Take Automation as a
Product Feature
3
Measure Outcomes with KPIs4
Well defined and agreed upon
Source Control
Road Map, Sprints, Bugs,
Backlog, Releases
Time to Deploy, Time to Recover,
Time to Rollout a Change
Code Reviews
Tests Deployment

16. Manage Drift
2

17. Incidents Waiting
to Happen
Impacts Time to Recover
Impacts Customers
System is in an
Adverse State
+
+
+

18. Drift
Automation Gaps Transitional
Habits Debugging
Incidents

19. Automated Audits1
Drift Tracking2
Mitigation as a Planned
Routine Activity
3
Managing Drift
Mitigation
Culture – Reward
Good Habits
4

20. Awareness of Systems & Operations
3

21. Measure
Everything
Business KPIs
System Config
Alerts
Drift

22. Culture of Shared Accountability
4

23. Make TTR a Shared Goal
OPS DEV
+ Working onWhat’sRunningtheBusiness
+ Knows How theSystem Fails
+ Worries About TTR
+ Working on(wantstowork on) new things
+ Knows how thesystem issupposed towork
+ Wantsto Understand Why