The document discusses Google App Engine (GAE), a platform as a service (PaaS) offering from Google Cloud Platform. It provides an overview of cloud computing models including infrastructure as a service (IaaS), PaaS, and software as a service (SaaS). GAE allows developers to build and host web applications on Google's infrastructure and supports applications written in Python, Java, Go, and PHP. Examples of using GAE to host websites and build applications using Google Maps are also presented.

1. Google App Engine
Presented By:
Csaba Toth
Csaba Technology Services LLC
Chrome & Cloud

2. Our sponsors

3. Agenda
• Cloud Computing and Google Cloud
Platform
• Google App Engine
• Beyond GAE (Google App Engine)

4. Cloud Computing
http://dilbert.com/strips/comic/2011-01-07/

6. Cloud Service Levels
IaaS: Infrastructure as a Service
PaaS: Platform as a Service
SaaS: Software as a Service SaaS
PaaS
IaaS

7. Infrastructure as a Service
• Simplest form: leasing a physical or virtual
server box: RackSpace, SoftLayer
• Includes
• Hardware: servers, network, routers, load
balancers,…
• Software: operating systems, databases (storage),
application servers

8. Infrastructure as a Service
Amazon AWS (Amazon Web Services) (+ S3
(Simple Storage Service) + EC2 (Elastic Cloud
Compute))
Microsoft Azure: VM Role
Google: Google Compute Engine (GCE)*

9. Platform as a Service
• The provider takes care some higher level
functions in the service stack
• Instead of getting servers, you get an
application framework
• Less control over the lower level service
elements, but the abstraction should result in
less hassle and more focus on the goal

10. Platform as a Service
• Google: Google App Engine (GAE)*
• Azure Web Role, Worker Role, Reporting
Services, etc.

11. Software as a Service
• Software deployed on the internet
• Designed for end-users
• Delivered through the web
• The back-end automatically scales, fault-tolerant
persistence

12. Software as a Service
• Usually API (Application Programming
Interface) is available for usage or feature
extension
• Example
• Gmail, Google Docs, Google Spreadsheet
• Office 365

13. IaaS / PaaS / SaaS
SaaS
PaaS
IaaS
Level of Control
Level of Abstraction

14. IaaS / PaaS / SaaS
Control + Cost Efficiency + Savings

15. Google App Engine

18. Google App Engine
• PaaS level member of Google Cloud
Platform
• It’s for developing, hosting, and scaling out
web applications
• Supported languages:
• Python
• Java (+ JVM langs Groovy, JRuby, Scala, Clojure)
• Go (experimental), PHP (experimental)

19. Google App Engine
Python
• Django, CherryPy, Pyramid, Flask, web2py, webapp2,
and more
• CGI adapters
Java
• Servlet 2.5 technology, Jetty Web Server
• JSP, Java Server Faces, JPA, JDO, Spring Framework,
Struts 2*, Grails*, …

20. Google App Engine
Restrictions:
• Can only execute code which respond to HTTP requests
• Answer cannot take longer than 60 seconds!
• Normally only pure Python modules (no C or Pyrex)*
• …

22. GAE Demo
• Hosting a website using App Engine:
http://www.labnol.org/internet/host-website-on-
google-app-engine/18801/
• Google Maps and Google App Engine
Demo:
http://wtp2.appspot.com/AppEngineMapDem
o.htm

23. GAE Demo
• Java Servlet Endpoints hosted by App
Engine for an multi platform card game:
https://github.com/59DAYSOFCODE/Project
-Deal-ORound/tree/master/cards/server

35. Cloud Computing
http://dilbert.com/strips/comic/2009-11-18/
http://dilbert.com/strips/comic/2010-01-18/

36. Thank you!
Questions?

37. Resources
• https://speakerdeck.com/googlecloudplatform/k
eynote-cloud-developer-roadshow-2014
• https://speakerdeck.com/googlecloudplatform/ia
as-divide-cloud-developer-roadshow-2014
• Slides: http://www.slideshare.net/tothc
• Contact: http://www.meetup.com/CCalJUG/

39. Our sponsors