IASA Atlanta September 2009


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Presentation to IASA Atlanta about cloud computing topics and advice for architects on how to incorporate these new technologies and approaches into their systems

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IASA Atlanta September 2009

  1. 1. An Overview of Cloud Computing<br />Christopher Curtin<br />
  2. 2. About Me<br />19+ years in Technology<br />Background in Factory Automation, Warehouse Management and Food Safety system development before Silverpop<br />CTO of Silverpop<br />Silverpop is a leading marketing automation and email marketing company<br />
  3. 3. Cloud Computing<br />What exactly is ‘cloud computing’?<br />Beats me<br />Most overused term since ‘dot com’<br />Ask 10 people, get 11 answers<br />
  4. 4. Topics<br />Types of Clouds<br />Infrastructure as a Service (IaaS)<br />Platform as a Service (PaaS)<br />Software as a Service (SaaS)<br />Private<br />Hybrid<br />Google Docs<br />Privacy and security<br />Return of the ISV?<br />Map Reduce/Hadoop<br />Thoughts for Architects<br />
  5. 5. Infrastructure as a Service (IaaS)<br />Provides ‘raw iron’ VM for you to use<br />Pretty much a root login and total control<br />‘pay as you go’ – charged by hour running and bandwidth/storage used<br />Amazon’s EC2 <br />Rackspace Cloud<br />Probably every co-lo provider<br />
  6. 6. IaaS Benefits and Risks<br />Benefits<br />Do whatever you want on the machine<br />Build it however you want<br />‘pay as you go’<br />Can deploy one server or 1000<br />Risks<br />Same as benefits<br />Mostly credit card today<br />Not something you’d give to a business group<br />Authentication is not provided<br />
  7. 7. IaaS – EC2<br />Offers prebuildmachine images ‘AMI’<br />Can build your own as well<br />Provides some infrastructure services such as load balancing, basic monitoring, queuing, disk storage<br />Biggest design challenge - storage<br />
  8. 8. Platform as a Service (PaaS)<br />Platforms provide you a container and set of services<br />You code to the API, worrying about business logic, not infrastructure<br />Microsoft’s Azure<br />Google’s AppEngine<br />SalesForce.com’s Force.com<br />EngineYard for Ruby<br />
  9. 9. PaaS<br />Very well defined ‘boxes’ to work in<br />Even when .net and Java containers are provided, not all APIs and libraries are available<br />No local disk<br />Hard (impossible?) to know how many instances are running<br />
  10. 10. PaaS Benefits and Risks<br />Benefits<br />No need to worry about networking, load balancers, Apache/IIS etc<br />Auto scaling is part of the application<br />Risks<br />Same as Benefits<br />Authentication is not robust<br />Constraints <br />Credit Card payments<br />
  11. 11. PaaS – Azure and AppEngine<br />Basically provide Servlet/MVC containers<br />Azure provides SQL Server<br />AppEngine provides JDO access to BigTable-like database<br />Long running tasks not supported (how to do reporting?)<br />No third party libraries, applications etc to integrate into your solution<br />
  12. 12. Software as a Service (SaaS)<br />Traditional Web applications?<br />Business applications hosted by others<br />Silverpop<br />SalesForce.com<br />Google Docs<br />Microsoft Live<br />
  13. 13. SaaS Benefits and Risks<br />Benefits<br />No IT costs<br />Department Level management<br />Support by Vendor<br />Risks<br />Possibly no IT knowledge<br />Privacy, Security, data outside firewall<br />Integration challenges<br />
  14. 14. SaaS Example: Silverpop<br />Provide Lead Management and Marketing applications<br />Marketing Departments lead RFP process, rarely see IT<br />However, security is critical<br />Integrations are often ‘build and forget’<br />
  15. 15. Private Clouds<br />Another really abused term<br />NOT the same as virtualization<br />Allows IaaS and PaaS inside your firewall or in a controlled, dedicated third party<br />Eucalyptus<br />3Tera<br />IBM, Unisys, Sun, HP etc<br />Expect VMWare (SpringSource)<br />
  16. 16. Private Clouds Benefits and Risks<br />Benefits<br />Total control<br />Provisioning<br />Reuse of existing capital systems<br />Easier integrations<br />Risks<br />Not adopting ‘services’ part of solution<br />Capital costs over time<br />
  17. 17. Private Clouds – 3Tera<br />Tool to let you define machines as resources<br />Build ‘applications’ drag and drop <br />Cloud can be internal, remote or both<br />
  18. 18. 3Tera Screenshot<br />
  19. 19. Hybrids<br />Amazon Virtual Private Cloud<br />3Tera<br />Cloud Bursting<br />Build internal system for ‘normal’ load<br />Call up cloud resources for extreme cases<br />Design architectures where some parts are in the cloud and some local by default<br />
  20. 20. Cloud Bursting Examples<br />IBM DB2 Workgroup for $3/hour<br />What could you do with 100 DB2 instances?<br />Billing<br />Day to day use local apps<br />Spin up 100 EC2 instances to do a monthly billing run<br />Financial<br />Spin up 100 EC2 instances to close the books monthly<br />Development<br />Large unit test suites<br />Spin up 10 EC2 instances, parallel tests nightly<br />
  21. 21. Google Docs<br />Microsoft Live too (eventually)<br />Can be PaaS or SaaS<br />Online collaboration <br />Can also build simple applications (forms)<br />
  22. 22. Privacy and Security<br />IaaS<br />Almost none by default<br />You must build it/manage it<br />PaaS<br />Some by platform but often tied to Live ID, Gmail login etc<br />SOME support integration with LDAP/Active Directory<br />Critical to get this under control!<br />
  23. 23. Privacy and Security 2<br />SaaS<br />Audit the vendors<br />Penetration tests<br />IP restrictions<br />Define rules for use of all 3<br />Amazon Virtual Private Cloud<br />“on your network”<br />Can use your infrastructure<br />Supposedly 100% VLAN’d<br />
  24. 24. Return of the ISV?<br />Remember the late 80’s and early 90’s?<br />The guy from church or neighbor build dBase 3 apps for everyone?<br />Corporate IT killed that by taking control of the desktop<br />PaaS and SaaS will bring them back<br />
  25. 25. ISV Continued<br />If IT is seen as the bottleneck, users will go around you<br />Access/Excel apps<br />A department manager could pay someone to build an app and host it on Azure for a few thousand<br />Paid monthly on a credit card, no capital, no IT traceability <br />
  26. 26. Map Reduce/Hadoop<br />Ever wonder how Google indexes the web?<br />Map/Reduce is a framework for diving jobs into manageable pieces<br />Then implementing the logic across many machines<br />
  27. 27. Map/Reduce 2<br />First step is to define the key for the data<br />For example, words in a document<br />Or customer identifiers<br />Next step is to run logic on the rows that match each key (Reduce)<br />Output is then combined into results directory<br />
  28. 28. Runtime Distribution © Concurrent 2009<br />
  29. 29. Map/Reduce 3<br />Don’t think about threading, scheduling, memory utilization<br />Think about business logic<br />VERY different way of thinking about solving a problem<br />A whole presentation by itself …<br />
  30. 30. Product Architects<br />How would I build my solution if I had lots of hardware on demand?<br />What are the things we do infrequently but have dedicated hardware for?<br />Learn about map/reduce for reporting, billing etc.<br />
  31. 31. Product Company Architect (SaaS)<br />What things are we doing in ‘back office’ that we only need once a week/month?<br />What quick/dirty things are the non-production teams doing to do their jobs?<br />Do I have the volume to support building my own infrastructure? <br />
  32. 32. Enterprise Architects<br />Know that your departments are going to the cloud with or without you<br />Look at applicable use of all types of ‘cloud’ solutions: PaaS, IaaS, SaaS all have their place<br />Think about internal/private clouds to make resource management easier<br />Provide resources to answer/direct departments about PaaS/SaaS<br />
  33. 33. AWSome Atlanta<br />Meets Second Tuesday of the month at ATDC<br />Started about Amazon’s services, but more general now<br />http://www.meetup.com/awsomeatlanta/<br />
  34. 34. Thank you<br />Chris Curtin ccurtin@silverpop.com<br />Twitter: @ChrisCurtin<br />SlideShare: www.slideshare.com/chriscurtin<br />Silverpop: http://www.silverpop.com/marketing-company/careers/index.html<br />