itcamp 2011 - mihai tataran - migrating to azure

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Migrating apps to Windows Azure Convincing the Customer

Mihai Tătăran H.P.C. Consulting

Microsoft MVP

[email protected]

www.codecamp.ro

mailto:[email protected]



http://www.codecamp.ro/

http://www.codecamp.ro/


IT Camp 2011

• Thanks for coming!

• ITCamp is made possible by our sponsors:


About

• H.P.C. Consulting

– Consulting / training

– Software development, custom apps

– Products

• Codecamp / AzureWorks / ITSpark

• Microsoft Most Valuable Professional

• Telerik Insider


Objectives

• How to convince a customer

• How to migrate / move to Azure


Session agenda

• Do / should you care about Azure?

• Is it better for the customer?

• Approaching the customer

• Project Migration: example

• Project from scratch (*)

• What’s next on Azure


Should you care?

• As an ISV / Consulting company

• As a software developer


Approaching the Customer

• As with any major paradigm change... • Major concerns (ISVs / Consulting)

• Security • Robustness • Dependability • Trust • Learning curve • Billing


Security

• “Data is not here (in the room nextdoor), I cannot touch it”

• I need to rely on a third party

– And their security procedures / techniques / implementation

• SLA

• Third party security analysis

• Safe Harbor

http://en.wikipedia.org/wiki/International_Safe_Harbor_Privacy_Principles


Divided liability

Cloud Service

Data transport

Cloud Backend

Cloud Admin

Evil Hacker

Cloud Provider • Backend • Virtualization • Sidechannels

You • Clients • Logons

Who’s responsibility • Communication • Guest OS • Applications • Monitoring

And how about • Incident response • Data backup/restore • Availability • Etc. Etc.


Security – attack surface

• Client computers: keylogger, certificate export

• Client communication: cookie hijack / insertion (with a sniffer); CA is compromized; man in the middle


Security – attack surface

• Brute force on the server

– Enumerate domains

– Enumerate (guess) usernames

– Brute force on passwords

• Denial of Service on the server

– Think about max number of attempts on passwords

– So … instrument / monitor your apps


Robustness

• Load balancer

• At least 2 instances

• SLA


Learning curve

• Seems quite smooth

• BUT

• Change in paradigms, thinking patterns

– Relational (ATOM, joins, etc) vs High Scalability

– Sticky Sessions vs Stateless

– Different deployment architecture

• A lot of “new” things

– AppFabric (Service Bus, Access Control Service, Caching)


Approaching the Customer

• As with any major paradigm change... • Major concerns (ISVs / Consulting)

• Security • Robustness • Dependability • Trust • Learning curve • Billing


Billing

• We can have more Azure subscriptions assigned to the same Credit Card

• We can get an aggregate invoice

• How do we transfer the cost to the customer?


Is it better for the customer?

• Or .... When?

• Any project? Any software application?

• Cost / benefits

• Performance

• Scalability


Cost / benefits

• Investment

• ROI (Return On Investment)

• TCO (Total Cost of Ownership)

• Calculate and evaluate

– Historical data

– Estimations of load

– Pricing calculator / by hand

– Prototype and measure

http://www.microsoft.com/windowsazure/pricing-calculator/


Performance

• Migration project: expect about the same or higher

• Project from scratch: should be better

• Easy to measure

– Microsoft guarantees certain performance for their side


Scalability • Cost effective

– Compare scaling vertically with scaling horizontally

– Scaling at the database level is expensive

• Load Balancer + >=2 instances

• Windows Azure Storage

• AppFabric Caching

• NO FREE LUNCH: no relational; no state


Migrating a project

• Completely

• Partially

• Forced


Migrating a project (example)

• Project estimation

• R&D

• Setup tools

– SSL certificate for the portal

• Database migration to SQL Azure

– Get rid of TDE (not supported)

– Redo the EF mappings

– Migrate existing data



• Architectural design changes

• Email server (external)

• CNAME

• Applications and corp website on the same webrole

– IIS on Azure allows you to do this


demo

• SQL Azure from Management Studio

• Multiple sites / Web Role

• Azure portal: deployment


Security concern

• VERY sensitive point of failure: Live ID credentials for the Portal


Migrating a project (example) – learning points

• We screwed up estimations

– Because of the tools

– Because of us (new technologies)

• Deployment architecture change => needed design changes in the application

– Better architectural design analysis needed

– E.g.: Entity Framework queries (explain)


Project from scratch

• Fully benefit from Azure technologies

• No re-design

• Prepared in advance for future changes in the load behavior


Project from scratch (example)

• Windows Azure Table Storage

– High scalability due to tables partitioning

• Access Control Service (with WIF)

– Different identity providers for authentication and authorization

• MVC 3


Project from scratch (example)


Azure – what’s next

• 2 – 3 major releases per year

• Windows Server AppFabric => Azure AppFabric

– Service Bus: queues, publish / subscriber

• Application Manager

– Great support for configuration and deployments

– E.g.: pre-provisioning the instances


Key Takeaways

• How to try to convince a customer

• How to approach a migration project


Resources

• Win Azure:

– http://www.microsoft.com/windowsazure/

– Service Bus

– AppFabric, Win Server AppFabric

• TechEd North America 2011

– http://northamerica.msteched.com (SIM312)

http://www.microsoft.com/windowsazure/

http://www.microsoft.com/showcase/en/us/details/cbacfd36-e253-428c-b081-c38486d0a22a

http://www.microsoft.com/showcase/en/us/details/cbacfd36-e253-428c-b081-c38486d0a22a

http://www.microsoft.com/showcase/en/us/details/71e72097-1470-4947-bc54-e2b8acc342d4

http://davidchappellopinari.blogspot.com/2010/05/introducing-windows-server-appfabric.html

http://northamerica.msteched.com/

http://northamerica.msteched.com/


More, online

• http://codecamp.ro

• http://www.hpc-consulting.ro/index.php/blog/

• @mihai_tataran

• Facebook

• Blog

http://codecamp.ro/

http://www.hpc-consulting.ro/index.php/blog/




http://www.facebook.com/profile.php?id=100001059819535



Q&A


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itcamp 2011 - mihai tataran - migrating to azure

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