The document outlines a presentation on modernizing digital APIs to cloud-native microservices, highlighting the need for modernization due to factors like digital transformation and operational challenges. It covers the approach taken, including team organization, CI/CD practices, and development guidelines, as well as the outcomes achieved, such as faster delivery and improved scaling of APIs. Key learnings emphasize the importance of open-source community support and the benefits of early releases.

1. Modernizing Digital APIs Platform
to Cloud Native Microservices
Yogi Rampuria
@yogendra | yrampuria@pivotal.io
October 7–10, 2019
Austin Convention Center

2. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
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features currently available. The development, release, and timing of any features or functionality described
for Pivotal's offerings in this presentation remain at the sole discretion of Pivotal. Pivotal has no obligation to
update forward looking information in this presentation.

3. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Yogi
● Engineer (I❤Spring)
● Open Source User and Contributor
● Senior Platform Architect, Pivotal
● Worked at Barclays, BlackRock and Standard
Chartered Bank
● Living in Singapore
● Traveller ( 24 Cities, 9 Countries, 2 continents)

4. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Agenda
What are Digital APIs?
Why Modernize?
How we are doing it?
Challenges and Learnings
Outcomes

5. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
What are Digital APIs?

6. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Why Modernize?

7. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Product
Domain &
Sub-Domain
Key Driver - Strategic Organizational Changes
7

Project
Business
Functions

8. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Key Driver - Agile Software Delivery
Self-sustaining teams
Team Composition: Scrum
Master, Engineer and Product
Owner
“DevOps” delivery teams

9. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Key Driver - Digital Transformation
Mobile first
Microservices
Two speed architecture

10. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Cloud Native Architecture
Pivotal Platform
Open source technology:
Spring, Spring Boot, Spring
Integration, etc.
Key Driver - Cloud Journey

11. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Key Driver - Operational Challenges
No clear upgrade path
Realtime Scaling
Continuous Delivery

12. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
How?

13. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Team Organization
● 6 - 8 Member teams
● Multi discipline team members
● Enabled and empowered existing teams
○ SME role
○ Engineer test harness
○ Provide guidance on context and data formats
1
3


14. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
CI/CD and DevOps Practices
● Automated build, test, code analysis, security scan and deploy
● High threshold for quality gates and test coverage
● Reward and recognition for accelerating adoption of all practices

15. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Design and Development Guidelines
● No change for API consumers
● Test Driven Development
● Library for common pattern
● Minimize impact on developer
productivity
● Avoid boilerplate code
● IDE with SonarQube integration
and debugger
1
5

● Avoid cross over between new and
old stack
● Controlled traffic migration
● Canary deployments

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Solution

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What worked?

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What worked?
● Ability to scale individual API
● Autoscaling
● Continuous delivery-ready
● Core/Helper framework simplified enterprise service access
● Reduced rework
● Staggered roll out for APIs based on region and segments

19. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
What we learned?
● Learning curve for the team
● Power of open source community
● Config Drifts
○ DNS Configuration
● Releasing early and releasing often

20. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
Outcome
● No change tickets for scaling APIs
● Faster delivery of API enhancements, within days.
● Shorter feedback loop
● Handling over 10% of total traffic for digital APIs
● Reduced change failure risk through selective routing

21. Thanks
Hear more customer journeys
Singing the "Migration Song" with No Downtime
(Wednesday, 5:40 pm–6:10 pm, 12AB)
From 10 Deploys Per Year to 4 Per Day
(Thursday, 11:50 am–12:20 pm, Ballroom F)
#springone@s1p