Spring Cloud Application

to Kubernetes

Vincent Huang 黃健旻

Hi there 👋, I'm Vincent Huang

• 💎 https://jianminhuang.cc 🙋 You can find me via my personal page
• 👨‍💻 Coder, 🎤 Speaker, 👨‍🏫 Mentor and 🚀 Leader
• 🧰 Research, Architecture, Coding, Database, Agile, DevOps, Testing, Infrastructure
• ♠️ Mainly use JVM Languages (Java > Kotlin > Scala) but also ❤️ Python, Node.js and Go
• 🍀 Big fan of 🍎 Hackintosh, 🌈 Corsair RGB products, 💞 Ryan in KAKAO FRIENDS and ⌨️ Mechnical Keyboard

References

• GOTO 2014 • Microservices • Martin Fowler
• GOTO 2016 • Journey from Monolith to Microservices & DevOps • Aviran Mordo
• https://matthung0807.blogspot.com/2019/03/spring-boot-netflix-ossspring-cloud.html
• https://spring.io/projects/spring-cloud-netflix
• https://www.nginx.com/blog/service-discovery-in-a-microservices-architecture
• https://github.com/Jian-Min-Huang/k8s-sample-2020
• https://www.cnblogs.com/fengzheng/p/11242128.html
• https://cloud.spring.io/spring-cloud-config/reference/html/
• https://spring.io/projects/spring-cloud-kubernetes

https://martinfowler.com/articles/microservices.html

a definition of this new architectural term

​

The term "Microservice Architecture" has sprung up over the last few years to describe a particular way of designing software applications as suites of independently deployable services. While there is no precise definition of this architectural style, there are certain common characteristics around organization and business capability, automated deployment, intelligence in the endpoints, and decentralized control of languages and data.

https://martinfowler.com/articles/microservices.html

a definition of this new architectural term

​

The term "Microservice Architecture" has sprung up over the last few years to describe a particular way of designing software applications as suites of independently deployable services. While there is no precise definition of this architectural style, there are certain common characteristics around organization and business capability, automated deployment, intelligence in the endpoints, and decentralized control of languages and data.

Ｗhat will happen if we change from Monolithic to Microservice ?

• Split by What ?
• Inter Process Communication to Remote Procedure Call
• Traffic Management
• Distributed Transaction
• Service Dependency
• Configuration
• Logging
• Deployment
• Monitoring
• ...

Netflix OSS

• Netflix Open Source Software
• Eureka for Service Discovery
• Zuul for L7 Application Gateway
• Ribbon for Load Balance
• Hystrix for Latency and Fault Tolerance
• Governator for Dependency Injection
• Archaius for Configuration Management
• ...

Spring Cloud Netflix

• Spring Cloud Netflix provides Netflix OSS integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms.

​

Netflix Microservice Architecture

Technique Stack Compare

Client Side Discovery

Server Side Discovery

Technique Stack Compare

Spring Cloud

Kubernetes_{Service Mesh (Istio)}

https://github.com/Jian-Min-Huang/k8s-sample-2020

Technique Stack Compare

Monitor _{Spring Cloud}

Monitor _{Spring Cloud}

Monitor _Kubernetes

Spring Boot Actuator

Prometheus

Grafana

Monitor _Kubernetes

Monitor _Kubernetes

Monitor _Kubernetes

Technique Stack Compare

Zipkin

Integration in Rancher

Jaeger

Technique Stack Compare

Config_{Spring Cloud}

Config_Kubernetes

Config_Kubernetes

Technique Stack Compare

Infrastructure

Spring Cloud

• Deployment
• IaaS VM
• Docker
• IaC
• Terraform
• Chef, Puppet, Ansible, etc.

Kubernetes

• Resource Type
• Native
• Advance like Service Mesh
• IaC
• Terraform
• Helm

Docker Docker-Compose K8s

• Docker -> Docker Compose -> Docker Swarm Kubernetes
• 1D -> 2D -> 3D free style

#!/bin/bash

​

docker run --name member-service …

docker run --name report-service …

docker run --name wallet-service ...

Docker Docker-Compose K8s

version: '3'

services:

# Member Service #

member-service:

image: ${repo_url}/member-service:${member_version}

...

# Report Service #

report-service

image: ${repo_url}/report-service:${report_version}

...

# Wallet Service #

wallet-service

image: ${repo_url}/wallet-service:${wallet_version}

...

YAML Engineer 4 ni !

Spring Cloud

Kubernetes_{Service Mesh (Istio)}

https://github.com/Jian-Min-Huang/k8s-sample-2020

Thinking

• Replacement ?
• Pros. and Cons.

Thank you so much for your time

Q & A