This document presents a simple cloud reference architecture. It consists of three main layers: a web server layer using technologies like Tomcat or Nginx, a stateless business logic layer using languages like PHP, Python, Ruby or Java, and a storage layer using databases like MySQL, MariaDB, PostgreSQL or NoSQL options like CouchBase, Redis or Riak. An example implementation for an online game is also included.

1. Simple Cloud
Reference
Architecture
charsyam@naver.com

2. General SNG Game
General Web Service
Architecture For

3. Simple Architecture
is more useful in
Cloud

4. Web Server
(Tomcat/Jetty)
Web Server
(Tomcat/Jetty)
Web Server
(Tomcat/Jetty)
Load Balancer(HAProxy/ELB(AWS))
Storage Layer(DBMS/NOSQL with Sharding)
Client

5. Business Logic Layer #1
• Components
–Web server
•Tomcat, Jetty
•Apache HTTP
•Nginx
–Language
•PHP/Python Django,Flask/RoR/Java

6. Business Logic Layer #2
• Business Logic Layer should be StateLess.
–To be elastic.

7. Web Server
Load Balancer(HAProxy/ELB(AWS))
Client
Web Server Web Server Web Server
Easy to attach and detach.
Stateless Layer

8. Storage Layer
• Components
– DBMS
• Mysql/Maria/PostgreSQL
– NoSQL
• CouchBase
• Redis
• Riak
– DBMS + Cache
• Mysql + memcache/Redis

9. Example
• Nexon PuzzleJuJu
– http://www.slideshare.net/awskorea/gaming-on-aws-aws-
20909525

10. Thank you.