windows azure web sites – things they don’t teach kids in school - azureconf
DESCRIPTION
Microsoft has a cloud platform which runs .NET, NodeJS and PHP. All 101 talks out there will show you the same: it’s easy to deploy, it scales out on demand and it runs WordPress. Great! But what about doing real things? In this session, we’ll explore the things they don’t teach kids in school. How about trying to find out the architecture of this platform? What about the different deployment options for Windows Azure Web Sites, the development flow and some awesome things you can do with the command line tools? Did you know you can modify the automated build process? Join me in this exploration of some lesser known techniques of the platform.TRANSCRIPT
Maarten Balliauw@maartenballiauw
Windows Azure Web SitesThings they don’t teach kids in school
Windows Azure Global Bootcamp
Over 60 community-led Windows Azure training events worldwide!
http://globalwindowsazure.azurewebsites.net
• Maarten Balliauw• Technical Evangelist, JetBrains• AZUG• Focus on web
• ASP.NET MVC, Windows Azure, SignalR, ...• MVP Windows Azure & ASPInsider
• Big passion: Windows Azure• http://blog.maartenballiauw.be • @maartenballiauw
Who am I?
Shameless self promotion: Pro NuGet - http://amzn.to/pronuget
Agenda
• Windows Azure Web Sites• Architecture• Project Kudu• Kudu kung-fu
Windows AzureWeb Sites
Start Simplestart free, scale up and out as you go, friction-free and without the headaches
Your waywith asp.net, php or node.js, develop on Windows, OSX or Linux
Go Livedeploy live in seconds,
easily monitor performance, rapidly diagnose and fix issues
Web Sites in Seconds
Windows AzureWeb Sites
demo
Architecture
disclaimer
• Layers• 1st layer: Windows Azure load balancer• 2nd layer: IIS + ARR
• ARR• “Reverse proxy”• Verifies hosting database (plans, quotas, …)• Negotiates best node to run your site on• Site not used much? Put it on a highly loaded machine
Load balancer
• %SYSTEM32%\inetsrv\config\applicationHost.config is taken out of the loop• SQL Azure• No refreshing of all app pools when file is saved
• Storage• “File share” hosted on other machines• Using “WA drive” on blob storage
• Dynamic website activation service• Verifies runtime database (plans, quotas, …)• Site not used for a while? Remove it from the server
Web servers
Web Sites are not in IIS. They only are when a request
comes in!
Azure LB
Runtime DB
Storage Controller
IIS ARR(LB)
Web Worker
Other databases
1
2
3
4
5
5
5
5
1st request (cold site)
Storage Controller
IIS ARR(LB)
Web Worker
Other database
s
1 2
3
3
3
3
xth request (hot site)
Azure LB
Your app not being used for a while?
devopsreactions.tumblr.com
• Provisioning and publishing• Storage and database• != launching a website on web farm
• Metering• By web servers once a site is loaded• Reported back to runtime database
Provisioning, publishing, metering
Runtime DB
Azure LB
Storage Controller
IIS ARR(LB)
Web Worker
X-DriveDeployment Server
Other databas
es
SQL Azure
Blob storage
Windows Azure Worker Role
Provisioning / API Frontend
Metering
DWAS
Site (W3WP.exe)Site (W3WP.exe)
Site (W3WP.exe)
Provisioning, publishing, metering
• Windows Azure Web Sites runs on Windows Azure Cloud Services
• ARR nodes are in fault/update domains• Web Workers are in fault/update domains• Storage nodes are in fault/update domains• Data is on SQL Azure• Files are on blob storage
What I find awesome…
Let’s find some proof…
demo
Need more proof?Windows Azure Services for Windows Server (http://www.microsoft.com/hosting/en/us/services.aspx)
Or:
http://blog.maartenballiauw.be/post/2012/07/24/Hands-on-Windows-Azure-Services-for-Windows.aspx
Project Kudu
• “The engine behind git deployments on Windows Azure”
• Open source (www.github.com/projectkudu/kudu)
• Provides git deployments• Provides builds• Provides sandboxing• Provides hosting
Project Kudu
Project Kudu
demo
Kudukung-fu
Application log streaming
demo
• All logs from the LogFiles/Application folder• Or configure it when querying: azure log tail <site> -p http
• Settings• DIAGNOSTICS_LASTRESORTFILE -> file to log to when diagnostics go
wrong• DIAGNOSTICS_LOGGINGSETTINGSFILE -> settings file (json)• DIAGNOSTICS_TEXTTRACELOGDIRECTORY -> default folder• DIAGNOSTICS_TEXTTRACEMAXLOGFILESIZEBYTES-> log rotation (bytes)• DIAGNOSTICS_TEXTTRACEMAXLOGFOLDERSIZEBYTES -> max log size
(bytes)
Log streaming
Managing settingsand secrets
demo
Staging and production
demo
Multi-tierDeploying a specific project file
demo
• One .deployment file per branch• [config]project=MultiTier.WebApi/MultiTier.WebApi.csproj
• How do I deploy all tiers in a separate website?• .deployment file per branch and every tier in a branch• or customize the build
Multi-tier remarks…
• Check https://github.com/projectkudu/kudu/wiki/Deployment-hooks
• .deployment file• [config]command=<whatever command>
• Write in batch file, bash script, PHP, JavaScript, …
Customizing the build process
Customizing deploymentsan introductiondemo
• A lot :-) (but not too much… there’s a sandbox)
• Environment variables:• DEPLOYMENT_SOURCE• DEPLOYMENT_TARGET• DEPLOYMENT_TEMP• WEBROOT_PATH• MSBUILD_PATH• + everything you feed it through the management portal
What can I do in scripts?
Customizing deploymentssample deployment scriptdemo
• We’ve seen the multi-tier scenario• We can download stuff (NuGet package restore,
pull in external Git repos before build)• We can run stuff (msbuild, nuget.exe, curl, php,
node, …)
Great… but why?
Customizing deploymentswhat about unit tests?demo
Need. Moar!
• REST API https://github.com/projectkudu/kudu/wiki/REST-API
• DropBox support
• Creating a custom handlerhttp://www.windowsazure.com/en-us/develop/python/tutorials/web-sites-with-django/
Moar out of the box
Need. MOAR!!!
A private Kudu build in web sites?
• Build and FTP the artifacts/debug/KuduService to your website
• Add USE_PRIVATE_KUDU=1 app setting• Enjoy the ride! (but don’t call support, you’re on
your own)
See http://blog.davidebbo.com/2012/06/developing-kudu-locally-and-on-azure.html
A private Kudu build in web sites?
Conclusion
• Windows Azure Web Sites are high density• Hosted on Cloud Services• Kudu is our best friend
• Settings and secrets• Muliple environments• Multiple tiers• Build customization• Unit tests• Kudu-in-Kudu
Key takeaways
Thank you!
http://blog.maartenballiauw.be
@maartenballiauw
http://amzn.to/pronuget
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