Have you ever thought how to deploy Cloud Native Java Applications (Spring Boot) on Kubernetes? Kubernetes has now become a de-facto standard for deploying Cloud Native Applications, but still there is myth that they are not ready for Java workloads. The aim of this session is to break that myth to show Kubernetes is well suited for Cloud Native Java applications. The session explores the cloud native characteristics such as Discovery, Blue/Green Deployments, Elasticity, Canary Deployments, Resiliency, Pipeline(CI/CD), Authentication etc., becomes implicit characteristics to your Spring Boot Java applications that are deployed on Kubernetes In this session, we will see how to build, debug, deploy and discover Spring Boot applications on Kubernetes, covering in depth details of the tools, libraries and platform that could be used to make your spring boot deployment smooth and easy.

1. Alex Soto
@alexsotob
KUBEBOOT - SPRING BOOT
DEPLOYMENT ON KUBERNETES

2. @alexsotob2
Alex Soto
Red Hat Engineer
www.lordofthejars.com
@alexsotob
Who Am I?

3. @alexsotob3
https://www.manning.com/books/testing-java-microservices
ctwspringio18

4. @alexsotob4
Questions

5. @alexsotob5
OpenSource

6. @alexsotob6
Microservice’ilities
MyService
Monitoring
Tracing
Discovery
API
Invocation
Resilience
Pipeline
Authentication
Logging Elasticity

7. @alexsotob7
NETFLIX Ribbon
Config Server
Java Microservices Platform circa 2014

8. @alexsotob
JDBC driver, JMS queue, users
8
Your Stack Matters
Server Hardware
Operating System
your.jar
Java Virtual Machine
Custom Configuration
Linux Kernel Version & Distribution
Java 1.8.0_144

9. @alexsotob9
DevOps Challenges for Multiple Containers
▪ How to scale?
▪ How to avoid port conflicts?
▪ How to manage them on
multiple hosts?
▪ What happens if a host has
trouble?
▪ How to keep them running?
▪ How to update them?
▪ Where are my containers?
Node
Node Node
Node Node
Logger
Node

10. @alexsotob10
ssh docker run
ssh docker run
ssh docker run

11. @alexsotob11

12. @alexsotob12
▪ Greek for “Helmsman,” also the root of the word
“Governor” (from latin: gubernator)
▪ Container orchestrator
▪ Supports multiple cloud and bare-metal
environments
▪ Inspired by Google’s experience with containers
▪ Open source, written in Go
▪ Manage applications, not machines
Meet Kubernetes

13. @alexsotob13
Kubernetes Cluster
Ops
Dev
Master
api
etcd
scheduler
controllers
Node
Node Node
Node Node
Logger
Node

14. @alexsotob14
Kubernetes Cluster
Pod
Replication
Controller/
Deployment
Service Label
✓ 1+ containers
✓ Shared IP
✓ Shared storage volume
✓ Shared resources
✓ Shared lifecycle
✓ Ensures that a
specified
number of pod
replicas are
running at any
one time
✓ Grouping of
pods (acting as
one) has stable
virtual IP and
DNS name
✓ Key/Value pairs
associated with
Kubernetes objects
(env=production)

15. @alexsotob15
Deploy Something To Kubernetes

16. @alexsotob16
DEMO

17. @alexsotob17
Spring Cloud Kubernetes
> Service Discovery
Spring Discovery Client using Kubernetes Service Discovery
> ConfigMap Property Source
Use Kubernetes ConfigMap/Secrets as Spring Property Source
> Zipkin Service Discovery
Using Zipkin with Kubernetes for distributed tracing

18. @alexsotob18
NETFLIX Ribbon
Config Server
Java Microservices Platform circa 2016

19. @alexsotob
The job of a deployment pipeline
is to prove that the release
candidate is unreleasable.
Jez Humble
19

20. @alexsotob20

21. @alexsotob21
CI/CD PRODUCTION ROUTER USERS
BUILD
SCM

22. @alexsotob22
CI/CD PRODUCTION ROUTER USERS
BUILDSCM

23. @alexsotob23
CI/CD PRODUCTION ROUTER USERS
SCM

24. @alexsotob24
CI/CD PRODUCTION ROUTER USERS
SCM

25. @alexsotob25
Canary Release

26. @alexsotob26
CI/CD PRODUCTION ROUTER USERS
SCM

27. @alexsotob27
CI/CD PRODUCTION ROUTER USERS
SCM

28. @alexsotob28
CI/CD PRODUCTION ROUTER USERS
SCM

29. @alexsotob29
CI/CD PRODUCTION ROUTER USERS
SCM

30. @alexsotob30
CI/CD PRODUCTION ROUTER USERS
SCM

31. @alexsotob31
CI/CD PRODUCTION ROUTER USERS
SCM

32. @alexsotob32
CI/CD PRODUCTION ROUTER USERS
SCM

33. @alexsotob33
Dark Launches

34. Dark Launches
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM
INTERNAL USERS

35. Shadowing Traffic
DEVELOPMENT QA STAGING PRODUCTION ROUTER USERS
SCM

36. @alexsotob36
Infinispan.org
IN-MEMORY DATA = All data needed is to kept in memory
GRID = Too big for one node, data is scaled-out in cluster
Analytical
Framework
Custom
Applications
Mobile
Applications
Web Apps &
Websites
Fuse "memory" across machines into a unified data store
Read-through, write-through, write-behind
• NoSQL
• Extreme Performance
• Linear Scalability
• Fault Tolerant
• Event processing
• Configurable ACID Txn
Infinispan/Red Hat JBoss Data Grid
Databases and/or file system

37. @alexsotob37
DEMO

38. @alexsotob38
Istio
Java Microservices Platform circa 2019

39. @alexsotob39

40. @alexsotob40
▪ Greek word for “sail”
▪ Fleet configuration
▪ Routing and Load-Balancing control
▪ Observability
▪ Chaos Testing
▪ Security Options
Istio

41. @alexsotob41
Pod
Container
JVM
Service A
Envoy Side-car
Pod
Container
JVM
Service B
Envoy Side-car
Pod
Container
JVM
Service C
Envoy Side-car
HTTP1.1, HTTP2,
gRPC, TCP w/TLS
HTTP1.1, HTTP2,
gRPC, TCP w/TLS
HTTP1.1, HTTP2,
gRPC, TCP w/TLS
Istio Pilot Istio Mixer Istio Auth
istioctl, API, config Quota, Telemetry
Rate Limiting, ACL
CA, SPIFFE
Istio Data Plane

42. @alexsotob
Canary Release
42

43. @alexsotob43
DEMO

44. @alexsotob44
Let’s Wind Down

45. @alexsotob45
Microservice’ilities
MyService
Monitoring
Tracing
Discovery
API
Invocation
Resilience
Pipeline
Authentication
Logging Elasticity

46. @alexsotob46
Digital Darwinism
Re-Org to
DevOps
Self-Service,
On-Demand.
Elastic
Infrastructure
as Code
Automation
Puppet,
Chef,
Ansible,
Kubernetes
CI & CD
Deployment
Pipeline
Advanced
Deployment
Techniques
Microservices

47. @alexsotob47
Automate Everything

48. https://developers.redhat.com/
@alexsotob
asotobue@redhat.com