Just another Wordpress weblog, but more cloudy

Just another Wordpress weblog,but more cloudy

WUX211

Maarten Balliauw

@maartenballiauw

Who am I?• Maarten Balliauw• Antwerp, Belgium• www.realdolmen.com • Focus on web

• ASP.NET, ASP.NET MVC, PHP, Azure, VSTS, …• MVP ASP.NET

• Interested in interoperability• PHPExcel, PHPLinq, Windows Azure SDK for PHP, ...

• http://blog.maartenballiauw.be • http://twitter.com/maartenballiauw

Agenda

• Cloud computing?• Windows Azure?• Application architecture• Using PHP with Windows Azure• Wordpress• Resources• Q&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 hostings• Sold on demand “pay as you grow”• Elastic scalability• Service is fully managed by the provider• End user centric (IW or developer)• Strong focus on integration (cloud-cloud or cloud-on-premises)

Definition of cloud (NIST)

• On-demand self service• Standardized access• Location independant resource

pooling• Rapid elasticity• Pay per use

IT as a ServicePrivate

(On-Premise)Infrastructure(as a Service)

Platform(as a Service)

Storage

Server HW

Networking

Servers

Databases

Virtualization

Runtimes

Applications

Security & Integration

Storage

Server HW

Networking

Servers

Databases

Virtualization

Runtimes

Applications

Security & Integration

Storage

Server HW

Networking

Servers

Databases

Virtualization

Runtimes

Applications

Security & Integration

You m

anage

Managed b

y v

endor

Managed b

y v

endor

You m

anage

You m

anage

Microsoft’s cloud

Windows Azure

The Windows Azure Platform• Windows Azure• SQL Azure• Windows Azure platform

AppFabric• Microsoft Codename “Dallas”• Microsoft Codename “Sydney”

Windows Azure

• Flexible application hosting• Lights-out service management

• Provide code & service model, hit ENTER

• Storage at massive scale• Blobs, tables, queues

Compute StorageManagement

There’s an SDK for this: http://phpazure.codeplex.com

Windows Azure

Windows Azure Data Storage

Account

Queue

Blob

Tables

Drives

Storage options

• Blobs, tables, queues• Windows Azure Drive (a.k.a. XDrive)• Virtual NTFS volume that can be mounted• .vhd format• Use existing NTFS API’s• Easier migration• Stored on blob storage provides quick

mount/unmount in other VM

SQL Azure

• Relational database as a service• Highly available, automatically maintained

• Extension of the SQL Server Data Platform

Database

Reporting Business Analytics Data Sync

There’s a driver for this: http://sqlsrvphp.codeplex.com

SQL Azure

• Relational database, provided as a service• Highly symmetrical development and tooling

experience (use TDS protocol and T-SQL)• Highly scaled out, on commodity hardware• Built on the SQL Server technology

foundation• High availability, DB provisioning, and DB

management are provided by the service

Windows Azure AppFabric

• Secure connections between services• Across organizational boundaries

• Claims-based access control

ServiceBus

AccessControl

There’s an SDK for this: http://dotnetservicesphp.codeplex.com/

Service Bus Overview

Windows Azure AppFabric - Service Bus

• Securely connect applications• Over the internet• Across any network topology (= across firewalls!)• Across organizational boundaries

• Primary application patterns• Eventing:

• Notify applications and/or devices

• Service Remoting: • Securely project on-premises services out to the cloud

• Tunneling: • App-to-app communication with NAT/Firewall traversal

• PortBridge - http://bit.ly/bCDrUs• Bridge TCP over Service Bus

A fun usage scenario…

Microsoft Codename “Dallas”

• Content brokerage and discovery platform

• Available as a CTP

Microsoft Codename “Dallas”

Information Services

Microsoft Codename “Sydney” - Connectivity

WINDOWS AZURE PLATFORM

Data Service

Service Bus

Access Control Service

ENTERPRISE

Code Name “Project Sydney”

Developer tools

• Development• Use your favourite editor

• Local debugging• Windows with IIS 7.x• Visual Studio• Windows Azure tools for Eclipse

• Packaging• Windows Azure SDK

• Deployment• Any browser

Your typical cloud applicationApplication architecture

Typical Architecture on Azure

Windows Azure Storage (Blob, Table, Queue)

VI P

Web Role

Worker Role

Service Unavailable

Web + Worker Role Service Model

Windows Azure Storage (Blob, Table, Queue)

Worker RoleWeb

Role

VI P

Web Role

Worker Role

Worker Role

Worker Role

Worker RoleService Still Available

How about that?PHP & Windows Azure

• It’s all about…

• Running PHP Code in Windows Azure

• Eclipse Tooling• Build, Test, Deploy PHP Projects• Create New or Use Existing PHP Projects

• Scaling PHP Apps

• Using Cloud Storage from PHP• Using Windows Azure Storage• Using SQL Azure

Using PHP with Windows Azure

Running PHP in Windows Azure• How to Do It

• Host in Web role (like .NET)• Supply PHP runtime• Point to runtime via FastCGI

configuration in• Web.config• Web.roleConfig

• Eclipse Tooling athttp://windowsazure4e.org does the above for you

PHP Web RoleInstance 2

VI P

Load

Bala

nce

r

PHP Web RoleInstance 1

PHP + Cloud Storage

PHPWeb Role

VI P

Load

Bala

nce

r

Windows Azure Storage

SQL Azure

PHP App

Windows Azure Platform

On-Premis

e

PHP with Windows Azure Storage• Windows Azure SDK for PHP at

http://phpazure.codeplex.com

• PHP programming model for Windows Azure Storage

• Features • PHP classes for Blobs, Tables & Queues• Store PHP sessions in Table Storage• File system wrapper for Blob Storage

PHP with SQL Azure

• SQL Server Driver for PHP at http://sqlsrvphp.codeplex.com/

• Supports PHP access to SQL Azure

• Features• Choose between SQL Server and SQL Azure by

changing connection string• Use from on-premise apps or in Windows Azure

PHP with AppFabric

• AppFabric SDK for PHP developers athttp://dotnetservicesphp.codeplex.com/

• Supports PHP on service bus and access control

• Features• Expose on-premise apps on an external endpoint

without opening firewall• Pub/sub scenario’s• …

Finally!

Wordpress

• Blogging engine• Widely used• Easy installation• Gazillion plugins• Huge community around it• Free and open-source

Wordpress

• Runs on top of MySQL• Has no database abstraction layer• So: only runs on MySQL• Windows Azure has Table Storage and

SQL Azure

• I feel lots of work coming…

But...

• Easy way out• Wordpress on Windows Azure• MySQL on-premise / at other hoster

• Medium way out• Wordpress on Windows Azure• MySQL as well

• Hard way out• Wordpress on Windows Azure• MySQL out, SQL Azure in

There are ways around!

The easy way out

PHPWeb Role

VI P

Load

Bala

nce

r

Windows Azure Storage

MySQL

Windows Azure Platform

On-Premise / hosted

The easy way out

• Fresh Windows Azure project in Eclipse

• Fresh Wordpress.org download• Point wp-config.php to some

MySQL server• Package & deploy

The medium way out

PHPWeb Role

VI P

Load

Bala

nce

r

Windows Azure Storage

Windows Azure Platform

On-Premise / hosted

WorkerRolerunningMySQL

• Fresh Windows Azure project in Eclipse• Fresh Wordpress.org download• “Windows Azure MySQL PHP Solution Accelerator”

• http://code.msdn.microsoft.com/winazuremysqlphp

• Some configuration• Some anger• Some configuration• Point wp-config.php to the above MySQL server• Package & deploy

The medium way out

• BUT!• Instance count!• Pricing!• (5 x 240 EUR / month adds up...)

• Easier migration, but at a cost...

The medium way out

• Yes, you can run MySQL on Windows Azure!

• More “solution accelerators”:• MySQL

• http://code.msdn.microsoft.com/winazuremysqlphp

• Memcached• http://code.msdn.microsoft.com/winazurememcached

• MediaWiki• http://code.msdn.microsoft.com/winazuremediawiki

• Tomcat• http://code.msdn.microsoft.com/winazuretomcat

So...

The hard way out

PHPWeb Role

VI P

Load

Bala

nce

r

Windows Azure Storage

SQL Azure

Windows Azure Platform

On-Premise / hosted

• Fresh Windows Azure project in Eclipse• Fresh Wordpress.org download• Point wp-config.php to SQL Azure• Package & deploy• Fail!• There’s no SQL Server / SQL Azure

support in Wordpress, remember?

The hard way out

• MySQL queries all over the place!• “Data layer” (wp-db.php) = very thin• Raw MySQL queries passed from app to db• Logging• Some other stuff

• That’s nowhere near a database abstraction...

Have you ever looked at Wordpress?

• Required:• Re-build wp-db.php using SQL Server Driver for PHP

• http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx

• Options...• Re-write every single query in Wordpress

• Future proof?• Insane!

• Build a query translation tool, rewriting queries on-the-fly• Future proof!• Insane!

Strategic options

• Hooks in Wordpress• Wp-contents/db.php• Wp-includes/wp-db.php

• Strategy• Create wp-db.php class on top of SQL Server Driver for

PHP• http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx

• Create custom DB schema, compatible with SQL Server• Build a query translation tool, rewriting queries on-the-fly

• Someone at Microsoft had this laying around

Here’s what we did...

• Resources• Images, other file uploads, ...

• Normally stored on server disk• But this may not survive on Windows Azure...

• Solution• Plugin using Windows Azure SDK for PHP• Storing everything on Blob Storage• Serving everything from Blob Storage

• There’s a CDN available!

But there’s also... resources

DemoIf the Internet works...

Learn more!

Resources

Resources• Windows Azure

http://www.azure.com

• Windows Azure SDK for PHPhttp://phpazure.codeplex.com

• SQL Server Driver for PHPhttp://sqlsrvphp.codeplex.com

• AppFabric SDK for PHP developershttp://dotnetservicesphp.codeplex.com

• PDChttp://microsoftpdc.com

• PHP Architect December 2009 issuehttp://www.phparch.com

• Steve Marxhttp://blog.smarx.com/

• Clemens Vastershttp://vasters.com/clemensv/

• Simon Guesthttp://simonguest.com/blogs/smguest

• My bloghttp://blog.maartenballiauw.be/category/Azure.aspx

• RealDolmen blogs is running on Azure!http://www.realdolmenblogs.com

• Windows Azure is• Operating system (computing & storage)• SQL Azure• AppFabric• Codename projects• Your application and skills

• Hybrid applications

• It’s not that hard to do

Conclusion

• Is the source code available?• No, not at this time.

• Do I need Visual Studio / Eclipse?• Only for local debugging.

• Do I need Windows & the Windows Azure SDK?• Only for local debugging.

Before skipping to Q&A...

Q & AMaarten Balliauwhttp://blog.maartenballiauw.be

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