This document discusses designing cloud applications by externalizing core components as services to focus on business logic. It recommends using AWS services for mailing, notifications, queuing, searching, databases, file storage, caching, load balancing, content delivery, and data processing/warehousing. This allows applications to scale easily and focus on their main functions rather than reimplementing common services. Externalizing to AWS services helps applications be scalable, reliable, and resilient through design for failure of individual components.

1. Lego Bricks of Cloud Apps
Ahmed Soliman!
R&D Director, Founder

2. @AhmedSoliman

3. What do you mean by Cloud
Applications?

4. Why should you care?

5. Scalability is not a feature

6. Design for failure and it will not
happen

7. Designing for failure is hard*
*Why not externalising as much components as possible then?

8. Typical Application Components
• Mailing Service for sending individual or mass e-mail
• Notification service for sending push notifications (mobile backends)
• Message Queuing Service for dispatching tasks to asynchronous
workers
• Search and data indexing
• Data Store (Database), for storing relational or non-relational data
• File Store, for storing images and other static assets

9. Infrastructure Services Data Services
Your Application
Application
Services
Externalise Components as
Services

10. Application Services

11. Outbound E-Mailing Service
• Marketing
• Transactional
• Notifications
• Social Networking
SES (Simple Email Service)

12. Queuing Service / Message Bus
• Essential for component decoupling
• Dispatch tasks to asynchronous
workers
• Breakdown big tasks into smaller
tasks to be consumed in parallel by
other services
SQS (Simple Queue Service)
Message Bus Service
Service 1 Service 2 S 3 S 4

13. Database Service
• Scalable, Fast, Reliable!
• RDS (Relational Database)!
• MySQL, Oracle, MS SQL Server, and
PostgreSQL!
• DynamoDB (NoSQL Database
Service)

14. Search and Indexing Service
• Multiple Languages Support
• Multiple Data-types Support
• Scalable, Highly Available
• Geospatial Search
Amazon CloudSearch Service

15. Mobile Push Notification Service
• Integrates with the message bus
(queuing service)
• Support for Google, Apple, and
Amazon devices
• Proper formatting for every device
• SNS (Simple Notification Service)

16. Infrastructure Services

17. Caching Service
• In-memory data grid
• Memcached and Redis storage
engine support
• Elastic, easy to add or remove
storage
Amazon ElastiCache

18. Load Balancer
ELB - API-based HTTP Load Balancer

19. Content Distribution
Network
Serve Static Content Incredibly Fast
— Amazon CloudFront

20. Storage Service
Amazon S3 / EBS

21. Data Services

22. Elastic Map Reduce
Hadoop as a service

23. Real-time Data Processing
Amazon Kinesis

24. Data Warehouse Service
Amazon Redshift

25. Conclusion

26. –Unknown Wisdom
“Building scalable applications by externalising core services to
Amazon AWS and focus on your business logic without re-
inventing the wheel”

27. Thank You!
info@cloud9ers.com