SpringOne Platform 2019 Title:Spring Cloud on Kubernetes Speakers: Ryan Baxter, Software Engineer, Pivotal; Alexandre Roman, Platform Architect, Pivotal YouTube: https://youtu.be/pYpruogcb6w

1. Spring Cloud on Kubernetes
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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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/
Who are we?
➔ Alexandre Roman
Platform Architect, Pivotal (Paris)
aroman@pivotal.io
github.com/alexandreroman
@Alexandre_Roman
➔ Ryan Baxter
Spring Cloud Software Engineer, Pivotal (Boston)
github.com/ryanjbaxter
@ryanjbaxter

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
Who are we?
What is Spring Cloud Kubernetes?
Demo time!
“Native Kubernetes Implementations”
4

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/
You have choices

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/
Deployment choices Doesn’t
Matter

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/
Spring Boot and Containers
https://spring.io/guides/gs/spring-boot-docker/
But the management…...

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/
What About Kubernetes?

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/
Spring Boot + Cloud & Docker + Kubernetes

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/
What is Spring Cloud Kubernetes?

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/
Why Spring Cloud Kubernetes?
Write portable apps using Spring Cloud
➔ Same source code for different environments
➔ No matter which environment you use, Spring Cloud provides the right platform abstraction
➔ Seamless integration between Kubernetes and Spring
➔ Spring Cloud Kubernetes is GA since February 2019

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/
Spring Cloud nicely fits with Kubernetes
ConfigMap/Secret support
➔ Hot reload your app when you
update your configuration
➔ Inject external configuration
properties using ConfigMap
➔ Map Spring config support with
ConfigMap: @Values,
@ConfigurationPropertie
s
➔ Load Secret values into your
beans
Native service discovery
➔ Leverage Spring Cloud Netflix,
without using an Eureka
instance
➔ DiscoveryClient uses
Kubernetes DNS resolver and
cluster events
➔ Use @LoadBalanced and
LoadBalancerClient for
client-side load balancing
across running pods
➔ Spring Cloud Circuitbreaker
support (Hystrix and
Resilience4j)
Pod health indicator
➔ Pod health indicator contributes
to Health actuator:
/actuator/health
Kubernetes awareness
➔ When your app is running in
Kubernetes, profile
kubernetes is automatically
enabled for custom
configuration

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/
What you’re about to see
Deploy a Cloud-native app to Kubernetes
➔ Deployment Generation
➔ Service Discovery
➔ Load Balancing
➔ Configuration

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/
Demo time!

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/
Do I need Spring Cloud Kubernetes?

16. 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/
Under the covers
App
Spring Cloud
K8S
K8S API Server
K8S API
Client
This requires the App
to have permissions to
use the K8S API

17. 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/
Use what is right for the situation
Use Spring Cloud Kubernetes
➔ Existing Spring Cloud apps
◆ Uses client side load balancing
◆ Uses Discovery Client
➔ Is OK to use the Kubernetes API server directly
Use Kubernetes
➔ Just planning on running on Kubernetes
➔ Familiar with Kubernetes

18. Stay Connected.
@ryanjbaxter
@Alexandre_Roman
Best Practices to Spring to Kubernetes Easier and Faster - Tuesday, 2pm
Source code: github.com/ryanjbaxter/spring-cloud-k8s-demo
#springone@s1p