Cloudy Ajax 08 10

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Cloudy Ajax 08 10

  1. 1. Cloudy Ajax Christopher Keene
  2. 2. Agenda ● What isn’t a cloud? ● What issues does cloud raise for Ajax developer? ● Example: building and deploying Ajax app on EC2 2
  3. 3. Cloud – What Is It? ● Data center with an API ● Next generation of hosting ● Logical extension to virtualization ● Way for Gartner to sell more reports ● Sure fire VC fundraising pitch ;-) 3
  4. 4. There are Clouds… ● No setup ● No up front costs ● IT as nature intended 4
  5. 5. And Then There Are Clouds ● Insecure ● Proprietary ● Dude, where’d my data go? 5
  6. 6. What Isn’t A Cloud? 5 Tests 1. Wallet test: can you buy it with a credit card? 2. ATM test: do you have to talk to a person to get it? 3. Kick test: do you own “thing” you could trip over? 4. Supersize me test: can you get 10x as much of it whenever you want? 5. Roach motel test: can you take your app + data somewhere else whenever you want? 6
  7. 7. Components of the Cloud Stack Cloud Application Stack Cloud - Based Development WaveMaker, Coghead Environment Common Services RightScale, Elastra (provision, monitor, manage) Runtime Environment Amazon EC2 On-Demand Infrastructure Amazon EC2, S3, SQS “We expect new vendors to offer powerful cloud-based IDEs that include traditional programming languages and tools for mashup development.” - McKinsey & Company, “Emerging SaaS Platform Wars”, 2008 *Source: McKinsey & Co, 2008 7
  8. 8. Why Cloud Matters: For Business ● Sandbox: A place to experiment ● Fewer restrictions ● Try first, justify to IT later ● Release from the data center straightjacket ● Business success drives IT investment 8
  9. 9. Why Cloud Matters: For ISVs ● Sell to business, not IT ● Lower cost of sales ● Easy to roll out new versions ● Ability to create ecosystem around the platform (e.g., SalesForce AppExchange) 9
  10. 10. Cloud Market Opportunity ● Cloud democratizes application deployment – don’t need a data center to deploy a web app ● Platform adoption is driven by tools – need open source IDEs for the cloud ● Enterprise adoption requires flexibility –apps should be deployable on site or on demand 10
  11. 11. Agenda ● What isn’t a cloud? ● What issues does cloud raise for Ajax developer? ● Example: building and deploying Ajax app on EC2 11
  12. 12. How Does The Cloud Change Ajax? ● Planning: persistent data, failover, email ● Developing: tools, source code control ● Staging: keeping versions/builds in sync ● Deploying: can’t manage what you can’t see 12
  13. 13. Cloud Architecture Dojo ● Redundant load balancer ● Two application servers Load Balancer Load Balancer Tomcat/Balancer ● Master/slave database App App Tomcat/Spring Server Server DB DB MySQL Master Slave 13
  14. 14. Cloud Costs ● 6 small instances (EC2) ● Need persistent storage too (S3) ● 720 hours/month = $72/server ● Also need systems management 14
  15. 15. What Would Google Do? ● Cloud apps have different architectural concerns: – Multi-tenant – Extensible – Self-service – Collaborative WW D? 15
  16. 16. Components of the SaaS Stack SaaS Applications Cloud - Based Development WaveMaker Environment Common Services RightScale, Elastra (provision, monitor, manage) Runtime Environment Amazon EC2 On-Demand Infrastructure Amazon EC2, S3, SQS “We expect new vendors to offer powerful cloud-based IDEs that include traditional programming languages and tools for mashup development.” - McKinsey & Company, “Emerging SaaS Platform Wars”, 2008 *Source: McKinsey & Co, 2008 16
  17. 17. Cloud Gotchas ● Testing (solution: SaaS testing service like SOASTA) ● Scaling (solution: SaaS management service like RightScale) ● Web integration (solution: WOA using REST, SOAP) ● Data integration (solution: VPN or SaaS integration platform like Boomi) ● Email from “cloud” IP addresses goes to spam (solution: use web service email like gmail) 17
  18. 18. Why Cloud-Based Tools? ● Easy to try: nothing to download/install ● Easy to collaborate: project in the sky ● Easy to deploy/scale ● Easy to maintain: nothing to get lost 18
  19. 19. Comparing Cloud-Based Tools Open Closed Java, Python, ● Language Ruby, Javascript Proprietary Spring, RoR, Django, ● Architecture Dojo, Ext, jQuery Proprietary ● Hosting On demand (EC2) or on premises Proprietary Open source ● Licensing (AGPL) Proprietary 19
  20. 20. Agenda ● What isn’t a cloud? ● What issues does cloud raise for Ajax developer? ● Example: building and deploying Ajax app on EC2 20
  21. 21. Sign Up For Amazon EC2 ● Use credit card ● 5 minutes max ● Funky security (key pairs, 508 certs, etc) 21
  22. 22. Sign Up for Rightscale (Free Version) 22
  23. 23. Build Ajax Application Open Source Import data or Cloud IDE services Drag&Drop Connect Designer widgets to data Dojo Create WAR Widget file based on Palette Dojo, Spring, Hibernate 23
  24. 24. WaveMaker Deployment Architecture Runs on Cloud Dojo 1.0 ● AJAX Widgets used to assemble applications JSON RPC ● Messaging from browser to server Spring / Hibernate ● Basic container and data access JaxWS / Acegi ● Web services and security Tomcat, JBoss, WLS and WAS 24
  25. 25. Open And Extensible ● Extensible client - drop into JavaScript code ● Extensible server - drop into Java code ● Extensible widgets – import or write your own ● RAD without the black box – extend WAR files in Eclipse or your favorite coding tool 25
  26. 26. Live Demo ● Let’s Hope This Works! 26
  27. 27. Questions? 27

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