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Architectural Patterns For The Cloud Brian H. Prince | Microsoft Brian H. Prince Principal Cloud Evangelist Microsoft blog. www.brianHprince.com twitter. @brianHprince email. [email protected] We are all excited about the cloud The trick is knowing what your systems need, and how the cloud can help. The core strategy is ‘hybrid’ Take an À la carte approach Look for pain or distractions Find Low Hanging Fruit ASP.NET Design Patterns Active Directory Authentication Using Claims Internet On-Premises Windows Azure Platform SSL connection Client Browser Client Browser ASP.NET Application SAML Token Identity Provider (ADFSv2) AD • • • • Web Role User Store Windows Identity Foundation Trust Relationship Federation trust established between Identity Provider and Application User credentials provided as SAML 2.0 or WS-* claims Claims communicated to WIF-based application using SSL Support for clients on the Internet ASP.NET Design Patterns Claims-Based Authentication using ACS 2.0 On-Premises Internet SSL connection Client Browser Client Browser AD Identity Provider (ADFSv2) Windows Azure Platform Web Role ASP.NET Application SAML Token Windows Identity Foundation Trust Relationships AppFabric Access Control Service 2.0 Partner Identity Provider • • • • Federation trust established between Identity Providers, ACS 2.0 and WIF-based app Browser requests token from the appropriate Identity Provider Claims communicated to WIF-based application using SSL Support for clients on the Internet Mass storage http://img.blob.core.windows.net/images/brian.jpg http://css.blob.core.windows.net/main.css http://js.blob.core.windows.net/animations.js CSS Cloud Images Bandwidth JS Blob Container On-premises http://www.myco.com/images/brian.jpg CSS/Images/JS Bandwidth HTML db Application Cloud Data in Motion SQL Azure On-premises Queue db System FAIL! 1 2 1011011101110111 Msg 3 When moving pieces to the cloud, you need to leverage services. Decompose your systems into pieces. This leads to flexibility. How do things connect? Plan on service facades. Cloud Accounting Service Accounting App App App WA Connect SQL Azure SQL Azure Azure Tables SQL Sync App SQL • On-premises Data SQL • SQL Azure • Azure Tables Email Sending? On-Premise Windows Azure • Send to an on-premises broker • Use a third party service Sync App Web Role Emails Email Broker Async App Web Role SMTP Server Accessing Sensitive Data • Windows Azure Connect • AppFabric Service Bus Architecting for Cost Optimization Approach CPU Memory I/O Network Image: Andy Newman What size VM to choose? : Cost XS Small Med Large XL $0.96/Hour $0.48/Hour $3,153.60 / Year $0.60/Hour $0.48/Hour What size VM to choose? : Capacity XS Small Med Large XL 50% capacity loss 12.5% capacity loss Role-combining Main webRole Single Web Main web Mgmt Web Mgmt Web Web Services Web Services Queue-driven tasks Q-driven tasks Mgmt tasks Background tasks Background tasks Mgmt tasks Scaling and cost Chart Title 90% 4 80% 70% 3 60% 50% 2 40% 30% 1 20% 10% 0% 0 0:00:00 0:15:00 0:30:00 0:45:00 1:00:00 1:15:00 1:30:00 1:45:00 2:00:00 CPU Instances Multi-tenancy Why Multi-Tenancy? Sharing is good Windows Azure Don’t have to MT at every tier Client A Client B Client C Web UI Web UI Web UI Client A Client B Client C Survey Svc MT Separate DB Separate Schemas Shared Schema Final Considerations DB Extension: Preset Fields DB Extension: Custom Columns DB Extension: Name-Value Pairs Get Windows Azure for Free! http://aka.ms/AzureForFree Thank You! Thank you! @brianhprince www.brianHprince.com http://www.linkedin.com/in/brianhprince Brian H. Prince | Microsoft