Just Another Word Press Weblog But More Cloudy

Just another WordPress weblog, but more cloudyMaarten Balliauw – RealDolmenE-mail: maarten.balliauw@realdolmen.comBlog: http://blog.maartenballiauw.beTwitter: @maartenballiauw

Who am I?Maarten BalliauwAntwerp, Belgiumwww.realdolmen.comFocus on webASP.NET, ASP.NET MVC, PHP, Azure, VSTS, …MVP ASP.NETInterested in interoperabilityPHPExcel, PHPLinq, Windows Azure SDK for PHP, ...http://blog.maartenballiauw.behttp://twitter.com/maartenballiauw

AgendaCloud computing?Windows Azure?Application architectureUsing PHP with Windows AzureWordpressResourcesQ&A

What’s in the cloud?Cloud Computing

What is Cloud Computing ?What is cloud computing ?Offering infrastructure, platform and software as a service over the internet to a global market.Move on-premises management of non functional IT assets to a provider.Difference from traditional hostingsSold on demand “pay as you grow”Elastic scalabilityService is fully managed by the providerEnd user centric (IW or developer)Strong focus on integration (cloud-cloud or cloud-on-premises)

Definition of cloud (NIST)On-demand self serviceStandardized accessLocation independant resource poolingRapid elasticityPay per use

IT as a ServicePrivate(On-Premise)Infrastructure(as a Service)Platform(as a Service)You manageApplicationsApplicationsApplicationsYou manageRuntimesRuntimesRuntimesSecurity & IntegrationSecurity & IntegrationSecurity & IntegrationManaged by vendorYou manageDatabasesDatabasesDatabasesServersServersServersManaged by vendorVirtualizationVirtualizationVirtualizationServer HWServer HWServer HWStorageStorageStorageNetworkingNetworkingNetworking

What’s in the cloud?Windows Azure

The Windows Azure PlatformWindows AzureSQL AzureWindows Azure platform AppFabricMicrosoft Codename “Dallas”Developer tools

Azure Service PlatformWindows Azure is an Operating System as a Service for the Cloud.Compute– auto-provisioning 64-bit application containers in Windows Server VMs; supports a wide range of application models

Storage– highly available distributed table, blob, queue, & cache

Languages – .NET 3.5 (C#, VB.NET, etc.), IronRuby, IronPython, PHP, native Win32 codeSQL Azure is a Relational Database for the Cloud. RDBMS – Tables, Views, Indexes, Stored Procedures, Triggers, ...

Programmability – Managed ADO.NET data access, native ODBC, support for PHP

Tools – SQLCMD and the SQL Azure Database account portalAppFabric is the glue between on-premises and the cloud. Service Bus – connectivity to on-premises applications; secure, federated fire-wall friendly Web services messaging intermediary; durable & discoverable queues

Identity Management – rules-driven federated identity; AD federation; claims-based authorizationLive Services is a building block within the Azure Services Platform.Live Mesh

Windows AzureFlexible application hostingLights-out service managementProvide code & service model, hit ENTERStorage at massive scaleComputeStorageManagementThere’s an SDK for this: http://phpazure.codeplex.com

SQL AzureRelational database as a serviceHighly available, automatically maintainedExtension of the SQL Server Data PlatformBusiness AnalyticsReportingData SyncDatabaseThere’s a driver for this: http://sqlsrvphp.codeplex.com

SQL AzureRelational database, provided as a serviceHighly symmetrical development and tooling experience (use TDS protocol and T-SQL)Highly scaled out, on commodity hardwareBuilt on the SQL Server technology foundationBeyond “hosted database”High availability, DB provisioning, and DB management are provided by the servicePay for what you use

Windows Azure AppFabricSecure connections between servicesAcross organizational boundariesClaims-based access controlServiceBusAccessControlThere’s an SDK for this: http://dotnetservicesphp.codeplex.com/

Windows Azure AppFabric - Service BusSecurely connect applicationsOver the internetAcross any network topologyAcross organizational boundariesPrimary application patternsEventing: Notify applications and/or devicesService Remoting: Securely project on-premises services out to the cloudTunneling: App-to-app communication with NAT/Firewall traversal

Microsoft Codename “Dallas”Content brokerage and discovery platform Available as a CTP at commercial launchMicrosoft Codename “Dallas”Information Services

Developer toolsDevelopmentUse your favourite editorLocal debuggingWindows with IIS 7.xVisual StudioWindows Azure tools for EclipsePackagingWindows Azure SDKDeploymentAny browserI’m whining for this one!

What’s in the cloud?Application Architecture

Typical Architecture on AzureService UnavailableVIPWorker RoleWeb RoleWindows Azure Storage (Blob, Table, Queue)

Web + Worker Role Service ModelWorker RoleService Still AvailableWorker RoleWeb RoleVIPWorker RoleWeb RoleWorker RoleWorker RoleWindows Azure Storage (Blob, Table, Queue)

What’s in the cloud?Using PHP with Windows Azure

Using PHP with Windows AzureIt’s all about…Running PHP Code in Windows AzureEclipse ToolingBuild, Test, Deploy PHP ProjectsCreate New or Use Existing PHP ProjectsScaling PHP AppsUsing Cloud Storage from PHPUsing Windows Azure StorageUsing SQL Azure

Running PHP in Windows AzureHow to Do ItHost in Web role (like .NET)Supply PHP runtimePoint to runtime via FastCGIconfiguration inWeb.configWeb.roleConfigEclipse Tooling athttp://windowsazure4e.org does the above for youPHP Web RoleInstance 1VIPLoad BalancerPHP Web RoleInstance 2

PHP + Cloud StorageWindows Azure StorageOn-PremiseVIPPHPWeb RoleLoad BalancerPHP AppSQL AzureWindows Azure Platform

PHP with Windows Azure StorageWindows Azure SDK for PHP at http://phpazure.codeplex.comPHP programming model for Windows Azure StorageFeatures PHP classes for Blobs, Tables & QueuesStore PHP sessions in Table StorageFile system wrapper for Blob Storage

PHP with SQL AzureSQL Server Driver for PHP at http://sqlsrvphp.codeplex.com/Supports PHP access to SQL AzureFeaturesChoose between SQL Server and SQL Azure by changing connection stringUse from on-premise apps or in Windows Azure

PHP with AppFabricAppFabric SDK for PHP developers athttp://dotnetservicesphp.codeplex.com/Supports PHP on service bus and access controlFeaturesExpose on-premise apps on an external endpoint without opening firewallPub/sub scenario’s…

What’s in the cloud?WordpressFinally!

WordpressBlogging engineWidely usedEasy installationGazillion pluginsHuge community around itFree and open-source

But...Runs on top of MySQLHas no database abstraction layerSo: only runs on MySQLWindows Azure has Table Storage and SQL AzureI feellots of work coming…

There are ways around!Easy way outWordpress on Windows AzureMySQL on-premise / at other hosterMedium way outWordpress on Windows AzureMySQL as wellHard way outWordpress on Windows AzureMySQL out, SQL Azure in

The easy way outWindows Azure StorageVIPPHPWeb RoleLoad BalancerMySQLWindows Azure PlatformOn-Premise / hosted

The easy way outFresh Windows Azure project in EclipseFresh Wordpress.org downloadPoint wp-config.php to some MySQL serverPackage & deploy

The medium way outWindows Azure StorageVIPPHPWeb RoleLoad BalancerWorkerRolerunningMySQLWindows Azure PlatformOn-Premise / hosted

The medium way outFresh Windows Azure project in EclipseFresh Wordpress.org download“Windows Azure MySQL PHP Solution Accelerator”http://code.msdn.microsoft.com/winazuremysqlphpSome configurationSome angerSome configurationPoint wp-config.php to the above MySQL serverPackage & deploy

So...Yes, you can run MySQL on Windows Azure!More “solution accelerators”:MySQLhttp://code.msdn.microsoft.com/winazuremysqlphpMemcachedhttp://code.msdn.microsoft.com/winazurememcachedMediaWikihttp://code.msdn.microsoft.com/winazuremediawikiTomcathttp://code.msdn.microsoft.com/winazuretomcat

The hard way outWindows Azure StorageVIPPHPWeb RoleLoad BalancerSQL AzureWindows Azure PlatformOn-Premise / hosted

The hard way outFresh Windows Azure project in EclipseFresh Wordpress.org downloadPoint wp-config.php to SQL AzurePackage & deployFail!There’s no SQL Server / SQL Azure support in Wordpress, remember?

Have you ever looked at Wordpress?MySQL queries all over the place!“Data layer” (wp-db.php) = very thinRaw MySQL queries passed from app to dbLoggingSome other stuffThat’s nowhere near a database abstraction...

Strategic optionsRequired:Re-build wp-db.php using SQL Server Driver for PHPhttp://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspxOptions...Re-write every single query in WordpressFuture proof?Insane!Build a query translation tool, rewriting queries on-the-flyFuture proof!Insane!

Here’s what we did...Hooks in WordpressWp-contents/db.phpWp-includes/wp-db.phpStrategyCreate wp-db.php class on top of SQL Server Driver for PHPhttp://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspxCreate custom DB schema, compatible with SQL ServerBuild a query translation tool, rewriting queries on-the-flySomeone at Microsoft had this laying around

But there’s also... resourcesResourcesImages, other file uploads, ...Normally stored on server diskBut this may not survive on Windows Azure...SolutionPlugin using Windows Azure SDK for PHPStoring everything on Blob StorageServing everything from Blob StorageThere’s a CDN available!

Just Another Word Press Weblog But More Cloudy

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