Just Another Word Press Weblog But More Cloudy

Just another WordPress weblog, but more cloudy
Maarten Balliauw – RealDolmenE-mail: maarten.balliauw@realdolmen.comBlog: http://blog.maartenballiauw.beTwitter: @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 Service
Private
(On-Premise)
Infrastructure
(as a Service)
Platform
(as a Service)
You manage
Applications
Applications
Applications
You manage
Runtimes
Runtimes
Runtimes
Security & Integration
Managed by vendor
You manage
Databases
Databases
Databases
Servers
Servers
Servers
Managed by vendor
Virtualization
Virtualization
Virtualization
Server HW
Server HW
Server HW
Storage
Storage
Storage
Networking
Networking
Networking

Windows Azure

The Windows Azure Platform
Windows Azure
SQL Azure
Windows Azure platform AppFabric
Microsoft Codename “Dallas”
Developer tools

Azure Service Platform
Windows 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 code
SQL 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 portal
AppFabric 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 authorization
Live Services is a building block within the Azure Services Platform.
Live Mesh
Live ID
Live Contacts
Live …
Live Services

Windows Azure
Flexible application hosting
Lights-out service management
Provide code & service model, hit ENTER
Storage at massive scale
Compute
Storage
Management
There’s an SDK for this: http://phpazure.codeplex.com

Windows Azure

SQL Azure
Relational database as a service
Highly available, automatically maintained
Extension of the SQL Server Data Platform
Business Analytics
Reporting
Data Sync
Database
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
Beyond “hosted database”
High availability, DB provisioning, and DB management are provided by the service
Pay for what you use

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/

Windows Azure AppFabric - Service Bus
Securely connect applications
Over the internet
Across any network topology
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

Service Bus Overview

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

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
I’m whining for this one!

Application Architecture

Typical Architecture on Azure
Service Unavailable
VIP
Worker Role
Web Role
Windows Azure Storage
(Blob, Table, Queue)

Web + Worker Role Service Model
Worker Role
Service Still Available
Worker Role
Web Role
VIP
Worker Role
Web Role
Worker Role
Worker Role
(Blob, Table, Queue)

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

Running PHP in Windows Azure
How to Do It
Host in Web role (like .NET)
Supply PHP runtime
Point to runtime via FastCGIconfiguration in
Web.config
Web.roleConfig
Eclipse Tooling athttp://windowsazure4e.org does the above for you
PHP
Web Role
Instance 1
VIP
Load Balancer
PHP
Web Role
Instance 2

PHP + Cloud Storage
On-Premise
VIP
PHP
Web Role
Load Balancer
PHP App
SQL Azure
Windows Azure Platform

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
…

Wordpress
Finally!

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

But...
Runs on top of MySQL
Has no database abstraction layer
So: only runs on MySQL
Windows Azure has Table Storage and SQL Azure
I feellots of work coming…

There are ways around!
Easy way out
Wordpress on Windows Azure
MySQL on-premise / at other hoster
Medium way out
MySQL as well
Hard way out
MySQL out, SQL Azure in

The easy way out
VIP
PHP
Web Role
Load Balancer
MySQL
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
VIP
PHP
Web Role
Load Balancer
WorkerRole
runningMySQL
On-Premise / hosted

The medium way out
“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

So...
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

The hard way out
VIP
PHP
Web Role
Load Balancer
SQL Azure
On-Premise / hosted

The hard way out
Point wp-config.php to SQL Azure
Package & deploy
Fail!
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 thin
Raw MySQL queries passed from app to db
Logging
Some other stuff
That’s nowhere near a database abstraction...

Strategic options
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!

Here’s what we did...
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

But there’s also... resources
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!

Demo time
If the Internet works...

Resources

Resources
Windows Azurehttp://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

AZUG.BE – Azure User Group Belgium
Focus on the Azure Services Platform
Community-driven
Focus on architecture
And development
And the business value of Azure
www.azug.be

And one more announcement...
Get a free t-shirt at the Microsoft booth!

Before skipping to Q&A...
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 packaging.
I’ll keep whining to make this available on Linux.

Questions, possibly Answers…
?
Maarten Balliauw – RealDolmenBlog: http://blog.maartenballiauw.beTwitter: @maartenballiauw

THANK YOU!
Maarten Balliauwhttp://blog.maartenballiauw.be

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Just Another Word Press Weblog But More Cloudy

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