Breaking Apart the Monolith

Transcription

1 Breaking Apart the Monolith with Modularity & Microservices Igor Arouca Liferay, Inc Michael C. Han Liferay, Inc June 26 th, 2017 Room #206

2 What is a Monolith? Self-contained, single process Difficult to scale Highly coupled Difficult to maintain June 26 th, 2017 Chicago Coder Conference 2

3 Microservices characteristics! Componentization via Services Organized around Business Capabilities Products not Projects Smart endpoints and dumb pipes Decentralized Governance Decentralized Data Management Infrastructure Automation Design for failure Evolutionary Design June 26 th, 2017 Chicago Coder Conference 3

4 50% not strictly software but rather operations related! Componentization via Services Organized around Business Capabilities Products not Projects Smart endpoints and dumb pipes Decentralized Governance Decentralized Data Management Infrastructure Automation Design for failure Evolutionary Design June 26 th, 2017 Chicago Coder Conference 4

5 Why consider Microservices? June 26 th, 2017 Chicago Coder Conference 5

6 Reducing the complexity of Monoliths wrong but common answer June 26 th, 2017 Chicago Coder Conference 6

7 June 26 th, 2017 Chicago Coder Conference 7

8 June 26 th, 2017 Chicago Coder Conference 8...

9 June 26 th, 2017 Chicago Coder Conference 9...

10 June 26 th, 2017 Chicago Coder Conference 10...

11 or... June 26 th, 2017 Chicago Coder Conference 11

12 ... or... June 26 th, 2017 Chicago Coder Conference 12

13 or... June 26 th, 2017 Chicago Coder Conference 13

14 Reduced complexity!!! or... June 26 th, 2017 Chicago Coder Conference 14

15 ... then all you are doing is shifting complexity from inside a component to the connections between components.... it moves it to a place that's less explicit and harder to control. June 26 th, 2017 Chicago Coder Conference 15

16 What's cool about Microservices? June 26 th, 2017 Chicago Coder Conference 16

17 The real power... is the ability for a developer to develop a single entity and then deploy that component multiple times Highly Scalable, Robust, Architecture In very straightforward terms... is a component model for building portable, reusable and scalable business components... for distributed environment. June 26 th, 2017 Chicago Coder Conference 17

18 Quotes from articles about EJB ( ) The real power... is the ability for a developer to develop a single entity and then deploy that component multiple times Highly Scalable, Robust, Architecture In very straightforward terms... is a component model for building portable, reusable and scalable business components... for distributed environment. June 26 th, 2017 Chicago Coder Conference 18

19 Should I do Microservices? June 26 th, 2017 Chicago Coder Conference 19

20 Microservices do not cure complexity! Actually nothing does! June 26 th, 2017 Chicago Coder Conference 20

21 The term "cure" means that, after medical treatment, the patient no longer has that particular condition Some diseases have no cure. The patient will always have the condition, but treatment can help to manage it. June 26 th, 2017 Chicago Coder Conference 21

22 Good treatment for complexity is enforcing a clean modular architecture June 26 th, 2017 Chicago Coder Conference 22

23 ... The Deployment Model is a Detail.... there is no such thing as a micro-service Architecture. Micro-services are a deployment option... June 26 th, 2017 Chicago Coder Conference 23

24 ... you shouldn't start with a microservices architecture. Instead begin with a monolith, keep it modular, and split it into microservices once the monolith becomes a problem.... June 26 th, 2017 Chicago Coder Conference 24

25 Modularity is an important software architecture concept! One can design modular application without Microservices June 26 th, 2017 Chicago Coder Conference 25

26 The OSGi specification describes a modular system and a service platform for the Java programming language The architecture of choice for and Confluence Eclipse Fuse ESB Glassfish Jboss JIRA JonAS Service Mix Weblogic Websphere... June 26 th, 2017 Chicago Coder Conference 26

27 Same characteristics but more flexible! Componentization via Services Organized around Business Capabilities Products not Projects Smart endpoints and dumb pipes Decentralized Governance Decentralized Data Management Infrastructure Automation Design for failure Evolutionary Design June 26 th, 2017 Chicago Coder Conference 27

28 This is not theory! We do this at 1 platform over 100 apps over 600 modules over 2500 μservices June 26 th, 2017 Chicago Coder Conference 28

29 Monolith Kaleo Modularized Kaleo June 26 th, 2017 Chicago Coder Conference 29

30 ? June 26 th, 2017 Chicago Coder Conference 30

31 microservices They build microservices for their own needs! This makes it easer for them to grow the DevOps culture hire the right people accept Decentralized approach automate infrastructure

32 THANK YOU! Igor Arouca / Michael C. Han Breaking the Monolith Java Track 1:15pm Room igor.arouca@acm.org mhan810@yahoo.com in/iarouca in/mhan810 July 10,