Microservices the Netflix Way. Hands on Demo of Eureka for Service Discovery, Ribbon for Load Balancing, Hystrix for Circuit Breaker, Hystrix Dashboard for Monitoring and Zuul for Proxy through an easy example will working code

1. 1
© 2017 Puneet Sachdev | All rights reserved© 2017 Puneet Sachdev | All rights reserved
Microservices: The Netflix Way
21st April 2017
Hands on Workshop
DevOps, Microservices and Containers Summit – Delhi
Puneet Sachdev
Chief Architect - Agile, DevOps and Product Engineering
NIIT Technologies
https://www.linkedin.com/in/puneetsachdev

2. 2
© 2017 Puneet Sachdev | All rights reserved© 2017 Puneet Sachdev | All rights reserved

3. 3
© 2017 Puneet Sachdev | All rights reserved© 2017 Puneet Sachdev | All rights reserved

4. 4
© 2017 Puneet Sachdev | All rights reserved
Microservices vs. SOA vs. APIs
Microservices is about
splitting a single
application into smaller
pieces which are
independent and have
their own lifecycle

5. 5
© 2017 Puneet Sachdev | All rights reserved
Microservices vs. SOA vs. APIs
CRM DW Finance Loyalty
SOA is about integrating
different applications
which can be internal or
3rd party

6. 6
© 2017 Puneet Sachdev | All rights reserved
Microservices vs. SOA vs. APIs
SOA Microservices
• Integration between different applications • Splitting an application into smaller pieces
• Dominated by proprietary stacks • Dominated by Open Source components from
organizations like Netflix
• Smart Pipes, Dumb Endpoints • Dumb pipes, Smart Endpoints
• Typically Hub-n-Spoke. Technology
Monoliths
• Completely Distributed
APIS
• APIs are interfaces which are exposed either internally and/or externally and have governance
and management around it

7. 7
© 2017 Puneet Sachdev | All rights reserved
Netflix Microservices Stack
Service Discovery Netflix Eureka
Netflix Zipkin
Config Netflix Archaius
Tracing
Netflix Zuul
Netflix RibbonClient LB
Fault Tolerance
Proxy
Netflix Hysterix
Service Registrar Netflix Prana

8. 8
© 2017 Puneet Sachdev | All rights reserved
Concept 1: Service Discovery through Netflix Eureka
Concept 2: Circuit Breaker using Netflix Hystrix
• Microservices applications have many moving parts and span across multiple boundaries
• How to prevent a network or service failure from cascading to other services?
Concept 3: Real time monitoring using Netflix Hystrix Dashboard
• When things fail, it is extremely important to note what is failing
• How to monitor in near real time many microservices?
Concept 4: Load Balancing using Netflix Ribbon
• Dumb pipes and smart endpoints. Where does this leave load balancing?
Concept 5: Proxying using Netflix Zuul
• With diverse traffic hitting microservices, how to get an ability to provide intelligent filters on
requests
• Microservices applications run in containerized/virtualized and cloud environments where their
actual locations change dynamically
• How does a client of a service discover the location?

9. 9
© 2017 Puneet Sachdev | All rights reserved
Hands On Demo
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp

10. 10
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices
Subject
Service
Verb
Service
Article
Service
Adjective
Service
Noun
Service
You saw the leaky seat
Sentence
Service
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp
2 servers
• 192.168.0.4
• 192.168.0.3

11. 11
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices – Demo 1
Verb
Service
Eureka
Verb
Service 2
1. Start Eureka Server
2. Start Verb Microservice
3. Start Verb2 Microservice
4. Check Eureka console
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp

12. 12
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices – Demo 2
Verb
Service
Eureka
Verb
Service 2
Sentence
Service
Subject
Service
Article
Service
Adjective
Service
Noun
Service
1. Start Eureka Server
2. Start Verb Microservice
3. Start Verb2 Microservice
4. Check Eureka console
5. Start Sentence Service
6. See Circuit Breaker in action
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp

13. 13
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices – Demo 3
Verb
Service
Eureka
Verb
Service 2
Sentence
Service
Subject
Service
Article
Service
Adjective
Service
Noun
Service
1. Start Eureka Server
2. Start Verb Microservice
3. Start Verb2 Microservice
4. Check Eureka console
5. Start Sentence Service
6. See Circuit Breaker in action
7. Hystrix Dashboard
Hystrix
Dashboard
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp

14. 14
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices – Demo 4
Verb
Service
Eureka
Verb
Service 2
Sentence
Service
Subject
Service
Article
Service
Adjective
Service
Noun
Service
1. Start Eureka Server
2. Start Verb Microservice
3. Start Verb2 Microservice
4. Check Eureka console
5. Start Sentence Service
6. See Circuit Breaker in action
7. Hystrix Dashboard
8. All services running
Hystrix
Dashboard
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp

15. 15
© 2017 Puneet Sachdev | All rights reserved
Sentence Microservices – Demo 5
Verb
Service
Download the code from:
https://github.com/psachdev6375/microservices-bootcamp
Eureka
Verb
Service 2
Sentence
Service
Subject
Service
Article
Service
Adjective
Service
Noun
Service
Zuul
Hystrix
Dashboard
1. Start Eureka Server
2. Start Verb Microservice
3. Start Verb2 Microservice
4. Check Eureka console
5. Start Sentence Service
6. See Circuit Breaker in action
7. Hystrix Dashboard
8. All services running
9. Zuul Proxy

16. 16
© 2017 Puneet Sachdev | All rights reserved
Thank You
Chief Architect - Agile, DevOps and Product Engineering, NIIT Technologies
https://www.linkedin.com/in/puneetsachdev
Puneet Sachdev