Don't build framework, Build platform

エムスリーさんのTech Talk #92で話したものです。
https://yoskhdia.hatenablog.com/entry/2018/05/11/212712

Transcript

1. DON’T BUILD
   FRAMEWORK,
   BUILD PLATFORM
   - Empower high flexibility and scalability in
   the enterprise with good design principles -
   2018/05/11 M3 Tech Talk #92
   @yoskhdia
   

   View Slide

2. Hello!
   ScalaMatsuri2018 CfP（落選）
   2
   

   View Slide

3. Using Akka?
   Akka is awesome & flexible.
   However…
   Systems in PRODUCTION
   requires:
   ▸ Logging
   ▸ Monitoring
   ▸ Security
   ▸ etc...
   3
   

   View Slide

4. Flexibility
   brings us
   many
   choices but
   often means
   making
   chaos
   “High flexibility”
   has a trade-off.
   We DON’T want
   each team to
   implement their
   non-functional
   requirements.
   We want to focus
   on the business
   domain.
   4
   

   View Slide

5. Don’t hide
   open
   knowledge
   Many people often choose to
   build their own framework for
   covering their requirements.
   However, it forces developers
   to learn the framework’s
   SPECIAL SHINY AWESOME
   PRIVATE API.
   This is a risk.
   5
   Any Good Toolkit
   (Akka, Spring, etc...)
   Your own
   Framework
   

   View Slide

6. One
   approach
   6
   Any Good Toolkit
   (Akka, Spring, etc...)
   Your own
   Framework
   Any Good Toolkit
   (Akka, Spring, etc...)
   Your Infrastructure
   Thin Platform
   ▸ Don’t build
   framework
   ▸ Build platform
   

   View Slide

7. I want to
   introduce
   squbs
   squbs is:
   ▸ Developed by PayPal
   ▸ NOT framework
   ▸ Suite of components
   enabling standardization and
   operationalization of Akka
   Overview Introduction - squbs
   7
   

   View Slide

8. “While squbs provides a
   server infrastructure, it
   does not define a
   framework.”
   - squbs Top page
   8
   

   View Slide

9. 5 Design
   principles of
   squbs
   ▸ Separation of
   Concerns
   ▸ Loose Coupling
   ▸ DRY
   ▸ Minimize
   Duplication of
   Effort
   ▸ Thin Platform
   Principles of squbs Design - squbs
   9
   

   View Slide

10. Separation
    of Concerns
    “Allowing infrastructure to plug in
    infrastructure concerns without
    disturbing the application in any way.”
    ▸ Separate non-functional
    requirements from
    functional requirements.
    ▸ Make those “Concerns”
    pluggable components.
    10
    

    View Slide

11. Loose
    Coupling
    11 “Tangling of large systems comes from
    tight coupling of the type system.”
    ▸ Separate an application into
    (service) modules called
    “cube”.
    ▸ They communicate with
    each other only via
    messages, this brings
    isolation of the service.
    

    View Slide

12. DRY
    12 “The drop-in design of squbs allows for
    at-most-once coupling.”
    ▸ Drop-in Modular System
    provides auto detection of
    each service modules.
    ▸ It is easy to add/remove
    them to/from the system.
    

    View Slide

13. Minimize
    Duplication
    of Effort
    13 “Most of the low-level components of
    the application that deal with application
    lifecycle and monitoring are common
    across applications.”
    ▸ By dealing with lifecycle
    management will hide and
    abstract away such
    duplications, to be
    standardization &
    operationalization.
    

    View Slide

14. Thin
    Platform
    14 “We realize the emergence of the thin
    platform and try to keep squbs as
    lightweight and non-imposing as
    possible.”
    ▸ Reduce dependencies and
    Do not impose further
    requirements.
    ▸ Developers can leverage
    general knowledge.
    

    View Slide

15. Conclusion
    15
    Any Good Toolkit
    (Akka, Spring, etc...)
    Your own
    Framework
    Any Good Toolkit
    (Akka, Spring, etc...)
    Your Infrastructure
    Thin Platform
    ▸ Don’t build
    framework
    ▸ Build platform
    

    View Slide

16. THANKS!
    Presented by Yoshitaka Okuda
    Special Thanks @jooohn1234 !
    You can find me at @yoskhdia
    16
    

    View Slide

17. Appendix
    ▸ Back-Pressure in Action: Handling High-Burst
    Workloads with Akka Streams & Kafka @PayPal
    ▸ squbs探訪 その1
    ▸ squbs探訪 その2（簡単なWebアプリケーションをつ
    くってみる）
    17
    

    View Slide

18. CREDITS
    Special thanks to all the people who
    made and released these awesome
    resources for free:
    ▸ Presentation template by
    SlidesCarnival
    ▸ Photographs by Unsplash
    18
    

    View Slide