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DevConTLV 2016

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Microservices
Insights with
Microservices
Lior Bar-On,
Purim 2016
Who is this Guy? (Lior Bar-On)
SAP: microservices-inspired architecture, to ease code maintenance
Gett: 24 microservices, 18 created in the last year
Developer, Architect, Chief-Architect
‫תוכנה‬ ‫ארכיטקטורת‬ ‫בלוג‬
Career
Microservices
Blogger
About
Company
About
R&D
TONS 76
RUBY-ON-RAILS
GOLANG
NATIVE IOS/ANDROID
REACTJS+FLUX+REDUX
200+
OF POSITIVE ENERGY EMPLOYEES
AWS PRODUCTION
SERVERS
ON PEAK TIME
In this talk...
Microservices is the new Black
… or the new DEFAULT Architecture Style
We do Microservices too - like everyone else!
● Microservices with Docker
Microservices are Clearly a Hype
● VB.NET for Microservices in 21 days
● Testing Microservices
● Microservices with node.js / Meteor /
Nginx / Go / Closure / ...
● Event-Driven Microservices
● Security for Microservices
‫הנושאים‬ ‫מהם‬ ‫בדקתי‬ ,‫ההרצאה‬ ‫לצורך‬
‫של‬ ‫בהקשר‬ ‫באינטרנט‬ ‫ביותר‬ ‫המדוברים‬
...‫מיקרו-שירותים‬
:‫שלי‬ ‫המסקנה‬ ??MSA ‫בגלל‬ ‫מחדש‬ ‫התוכנה‬ ‫הנדסת‬ ‫מקצוע‬ ‫כל‬ ‫את‬ ‫ללמוד‬ ‫צריך‬ ‫האם‬ ?‫המסקנה‬ ‫מה‬

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Microservices (msa) insights with comments

  • 2. Who is this Guy? (Lior Bar-On) SAP: microservices-inspired architecture, to ease code maintenance Gett: 24 microservices, 18 created in the last year Developer, Architect, Chief-Architect ‫תוכנה‬ ‫ארכיטקטורת‬ ‫בלוג‬ Career Microservices Blogger
  • 4. About R&D TONS 76 RUBY-ON-RAILS GOLANG NATIVE IOS/ANDROID REACTJS+FLUX+REDUX 200+ OF POSITIVE ENERGY EMPLOYEES AWS PRODUCTION SERVERS ON PEAK TIME
  • 5. In this talk... Microservices is the new Black … or the new DEFAULT Architecture Style
  • 6. We do Microservices too - like everyone else! ● Microservices with Docker Microservices are Clearly a Hype ● VB.NET for Microservices in 21 days ● Testing Microservices ● Microservices with node.js / Meteor / Nginx / Go / Closure / ... ● Event-Driven Microservices ● Security for Microservices ‫הנושאים‬ ‫מהם‬ ‫בדקתי‬ ,‫ההרצאה‬ ‫לצורך‬ ‫של‬ ‫בהקשר‬ ‫באינטרנט‬ ‫ביותר‬ ‫המדוברים‬ ...‫מיקרו-שירותים‬ :‫שלי‬ ‫המסקנה‬ ??MSA ‫בגלל‬ ‫מחדש‬ ‫התוכנה‬ ‫הנדסת‬ ‫מקצוע‬ ‫כל‬ ‫את‬ ‫ללמוד‬ ‫צריך‬ ‫האם‬ ?‫המסקנה‬ ‫מה‬
  • 7. We do Microservices too - like everyone else! ● Microservices with Docker ● Testing Microservices ● Microservices with node.js / Meteor / Nginx / Go / Closure / ... ● Event-Driven Microservices ● Security for Microservices ● VB.NET for Microservices in 21 days ‫בין‬ ‫רב‬ ‫שוני‬ ‫היה‬ ‫לא‬ .MSA ‫ל‬ ‫אותן‬ ‫קשרו‬ ‫ורק‬ - ‫השונות‬ ‫הטכנולוגיות‬ ‫על‬ ‫לדבר‬ ‫רצו‬ ‫כולם‬ ,‫בעצם‬ ‫הוסיפו‬ ‫רק‬ - ‫זהים‬ ‫הרעיונות‬ .Testing Microservices ‫על‬ ‫לכתבות‬ Testing ‫על‬ ‫כתובת‬ .‫קישור‬ ‫נקודות‬ ‫במאמרים‬ .‫בצחוק‬ ‫זה‬ - ‫האחרונה‬ ‫הדוגמה‬
  • 8. Pattern: Assume Microservices Microservices is what everyone do. If you speak to everyone - connect yourself to microservices. "with Microservices" ‫תכלול‬ ‫מעכשיו‬ ‫שלכם‬ ‫מצגת‬ ‫שכל‬ ‫ממליץ‬ ‫אני‬ !‫אישית‬ ‫דוגמה‬ ‫נותן‬ ‫ואני‬ -
  • 9. Seriously: Beware of “Microservices Envy” Microservices are not “one architecture to rule them all”
  • 11. Some Commonly used Patterns ● Circuit Breakers, Bulkheads ● Single Sign-On (SSO) (e.g. OKTA, PingFederate) ● Distributed Tracing (e.g. Dapper, ZipKin) ● Centralized Configuration (e.g. Consul, Zookeeper, Spring Cloud) ● Service Discovery (e.g. Consul, Zookeeper, Euroka) ● Client (service) Side load balancing (e.g. Ribbon) ● Micro-Proxy / API Gateway (e.g. Zuul, ….) ● CQRS / Stream Processing ● Containers (e.g. Docker, Unikernel, then: Mesos, Kubernetes, Swarm,...) Patterns ‫של‬ ‫נכבדת‬ ‫כמות‬ ‫כבר‬ ‫יש‬ .MSA‫ל‬ ‫המקושרים‬
  • 12. We do Microservices too - like everyone else! Remember: No Software Engineer was ever got fired for implementing ALL Microservices-related Patterns to the system. Though, they may get fired for not delivering Business Value within a reasonable time.
  • 13. Seriously: Don’t implement Patterns eagerly. Match Pattern per pain-point.
  • 14. MSA Patterns & Gett ● Circuit Breakers ● Custom* Implemented within 9 months ● Distributed Tracing ● Centralized Configuration Implemented within 15 months ● Single Sign-On (SSO) ● API Gateway - onto the Monolith Implement within 20 months (soon) ● API Gateway ● Containers* - in pilot Desired ● Service Discovery ○ we use simple DNS. ● Client (service) Side load balancing ● Bulkheads ● CQRS / Stream Processing Not on our plans blog post .‫לכך‬ ‫ממשי‬ ‫צורך‬ ‫קיים‬ ‫באמת‬ ‫עכשיו‬ ‫רק‬ - ‫אחרי‬ ‫וחצי‬ ‫שנה‬ .API GW ‫במימוש‬ ‫להתחיל‬ ‫מייד‬ ‫לנו‬ ‫יעצו‬ ,‫בגט‬ ‫כשהתחלנו‬ .‫ומתי‬ - ‫מימשנו‬ ‫אנחנו‬ Patterns ‫אלו‬ ‫הנה‬ .‫פרספקטיבה‬ ‫קצת‬ ‫לתת‬
  • 15. Not all common problems mapped to Patterns Network Error rate of TCP 3-way-handshakes: ~ 1:20,000 Charging operations failed due to network on Legacy: none Charging operations failed due to network on MSA: ~ 1:240 .Patterns ‫עם‬ ‫נפתרות‬ ‫הבעיות‬ ‫כל‬ ‫לא‬ ‫חשיפה‬ ‫בגלל‬ ‫בה‬ ‫שנתקלנו‬ ‫בעיה‬ ‫הנה‬ ‫שקודם‬ ‫תקשורת‬ .‫הרשת‬ ‫של‬ ‫לרגישות‬ ‫כעת‬ - ‫המונוליט‬ ‫של‬ ‫בזיכרון‬ ‫הייתה‬ ‫לכן‬ ‫עם‬ ‫ומתמודדת‬ ‫הרשת‬ ‫דרך‬ ‫עוברת‬ ...‫שלה‬ ‫הרעשים‬
  • 16. Seriously: Understanding what you are doing >> using the BEST(!!1) patterns.
  • 17. … are not really “microservices patterns” ● Circuit Breakers, Bulkheads ● Centralized Configuration ● API Gateway (Gateway / Proxy / Facade) ● CQRS / Steam Processing Much Older than Microservices Somewhat Related to SOA ● Single Sign-On (SSO) ● Distributed Tracing ● Service Discovery Happened to arrive at the same time ● Containers (Docker, Unikernel, etc.) ‫בעצם‬ ‫הם‬ - MSA ‫של‬ Patterns ,‫ובכלל‬ ‫וזמנים‬ ‫ממקומות‬ ‫דפוסים‬ ‫של‬ ‫אסופה‬ ...‫שונים‬ ‫מהפיכה‬ ‫שזו‬ Containers ‫אולי‬ ‫מלבד‬ MSA ‫ו‬ MSA ‫ללא‬ ‫גם‬ ‫מתרחשת‬ ‫שהייתה‬ .‫בלעדיה‬ ‫מתרחשת‬ ‫הייתה‬ .‫סינרגיה‬ ‫נקודות‬ ‫הללו‬ ‫המגמות‬ 2-‫ל‬ ‫יש‬
  • 18. Seriously: Many of the above are classical Patterns of Distributed Systems. Microservices = Distributed Systems. (‫מסובכת‬ ‫היא‬ ‫)כי‬ ‫מבוזרת‬ ‫ממערכת‬ ‫המנעו‬ - ‫האפשר‬ ‫במידת‬ :‫מבוזרות‬ ‫מערכות‬ ‫של‬ #1 ‫כלל‬
  • 20. Key Motivation #1 Continuous Deployment, A/B testing A/B Testing is a core business activity
  • 21. MSA is about Continuous Deployment
  • 22. Services = parallel deployment pipeline
  • 23. Services = independent deployment pipeline?
  • 25. MSA is about Dev Org’s Scalability ● Services are small enough for code not to become ugly / lose control The number of services scale with the System’s growth ● Services are small enough to be sometime fully re-written
  • 26. MSA is about Dev Org’s Scalability (2) Fences make good neighbours Not-Sharing Memory makes fewer “dependency breaches” Now: Cross-Service APIs - are what you need to watch! - ‫למודולים‬ ‫ברורה‬ ‫חלוקה‬ ‫לנו‬ ‫יש‬ ‫במונוליט‬ ‫זמן‬ ‫לאורך‬ ‫ולהתפזר‬ ‫אותה‬ ‫להפר‬ ‫קל‬ ‫אבל‬ ‫יותר‬ ‫יש‬ ‫אזי‬ APIs ‫ו‬ ‫רשת‬ ‫בתקשורת‬ ‫מגובה‬ ‫החלוקה‬ ‫כאשר‬ ,MSA ‫ב‬ ‫פעמיים‬ ‫לחשוב‬ ‫גם‬ ‫לנו‬ ‫שעוזר‬ ‫מה‬ - ‫נוספים‬ ‫תקשורת‬ ‫קווי‬ ‫ליצור‬ ‫עבודה‬ .‫הסדר‬ ‫על‬ ‫ולשמור‬
  • 27. Seriously: Microservices have downsides too: ● The “Whole Picture” now shattered and you need to re-assemble it (monitoring, logs, business logic needs, etc.) ● Network sensitivity ● Development overheads; Performance overheads.
  • 28. Seriously: Consider a “Monolith First” approach (a best-practice!) Remember microservices are new. Question everything! Make your own variations! Allow yourself using non-microservices architecture E.g. facebook, etsy, etc.
  • 30. Approach to MSA with understanding... image credits: @alvaro_sanchez ‫כבר‬ ‫שאתם‬ ‫מערכת‬ ‫לכם‬ ‫ויש‬ ‫ייתכן‬ ‫לעשות‬ ‫ורוצים‬ ,‫אוהבים‬ ‫כל-כך‬ ‫לא‬ .‫שינוי‬ ‫בה‬ ‫בהכרח‬ ‫לא‬ ‫למיקרו-שירותים‬ ‫חלוקה‬ !‫הבעיה‬ ‫את‬ ‫תפתור‬
  • 31. … to make a better use of it ‫בעיה‬ ‫של‬ ‫נכונה‬ ‫התאמה‬ ‫עם‬ ‫עמוקה‬ ‫הבנה‬ ‫מתוך‬ ‫ועבודה‬ ,‫לפתרון‬ ‫מוצלח‬ ‫למימוש‬ ‫הסיכויים‬ ‫גדלים‬ - !‫מיקרו-שירותים‬ ‫של‬