The document discusses microservices and their characteristics including componentization via services, being organized around business capabilities, treating products instead of projects, having smart endpoints and dumb pipes, decentralized governance and data management, infrastructure automation, designing for failure, and evolutionary design. It provides examples of how OSGi services demonstrate some of these characteristics.

1. Milen Dyankov
@milendyankov
Liferay Portal 7
(micro)services
for the enterprise

2. 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
Microservices
characteristics!

4. ...

5. ...

6. ...

7. ...
or

8. ...
or
...∞

9. ...
or
...∞
...

10. ...
or
...
Reduced complexity !!!
∞
...

11. . . .
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.

12. . . .
The Deployment Model is a Detail.
. . .
there is no such thing
as a micro-service
architecture.
Micro-services are a
deployment option
. . .

13. 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
50% not strictly software but
rather operations related!

14. Componentization via Services
Smart endpoints and dumb pipes
Decentralized Data Management
Design for failure
Let's focus on software
related ones

15. OSGi services
manifestmanifestmanifest manifest
OSGi service registry
Interface
Service 1
. . .
Service N

16. OSGi services
manifestmanifestmanifest
OSGi service registry
REGISTER
REGISTER
USE
manifest
Interface
Service 1
. . .
Service N

17. OSGi services
manifestmanifest
OSGi service registry
SERVLET
SERVLET
GET GET
REGISTER
REGISTER
HTTPServiceImpl
HTTP
Service
HTTPServiceImpl
REGISTER

18. OSGi services
manifestmanifest
OSGi service registry
HTTP
Servlet
REGISTER
SERVLET
SERVLET
GET
(when needed)
HTTPServiceImpl
Servlet1
(path=”/1”)
Servlet2
(path=”/2”)
REGISTER
applying White Board Pattern

19. ●
Componentization via Services
manifestmanifest
OSGi service registry
HTTP
Servlet
REGISTER
SERVLET
SERVLET
GET
(when needed)
HTTPServiceImpl
Servlet1
(path=”/1”)
Servlet2
(path=”/2”)
REGISTER

20. Smart endpoints and dumb pipes
manifestmanifest
OSGi service registry
HTTP
Servlet
REGISTER
SERVLET
SERVLET
GET
(when needed)
HTTPServiceImpl
Servlet1
(path=”/1”)
Servlet2
(path=”/2”)
REGISTER
no

21. Decentralized Data Management
manifestmanifest
OSGi service registry
HTTP
Servlet
REGISTER
SERVLET
SERVLET
GET
(when needed)
HTTPServiceImpl
Servlet1
(path=”/1”)
Servlet2
(path=”/2”)
REGISTER
Everything

22. Design for failure
manifestmanifest
OSGi service registry
HTTP
Servlet
REGISTER
SERVLET
SERVLET
GET
(when needed)
Servlet1
(path=”/1”)
Servlet2
(path=”/2”)
REGISTER
HTTPServiceImpl

23. Remote services
OSGi service registry
Interface
Service 1
Service 1 (remote)
OSGi service registry
Interface
Service 1

24. DEMO

25. milen.dyankov@liferay.com
http://www.liferay.com/web/milen.dyankov/
@milendyankov
@LiferayPL
http://www.liferay.com
@Liferay
http://www.facebook.com/Liferay