Windows Azure Interoperability

Windows Azure – Plug and Play
Interoperability and The Freedom of Choice

Mihai Nadăș
Yonder / www.tss-yonder.com
mihai@nadas.ro / www.mihainadas.com

Premium conference on Microsoft’s Dev and ITPro technologies @itcampro / #itcampro

IT Camp 2011
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• ITCamp is made possible by our sponsors:


Session agenda
1. Windows Azure - a short refreshment
– DEMO / PhooStock (Photo Sharing in Azure)
2. Interoperability? As-in JAVA and stuff?
– DEMO / Tomcat on Windows Azure
3. What about PHP? MySQL?
– DEMO / PHP and MySQL on Windows Azure

4. Q&A

The cloud evolves
• It becomes more crisp
Cloud computing is a model for enabling convenient, on-demand network access to a
shared pool of configurable computing resources (e.g., networks, servers, storage,
applications, and services) that can be rapidly provisioned and released with minimal
management effort or service provider interaction. (Peter Mell and Tim Grance, NIST)

• It grows as they told us it will
– ~$37.8B in 2010, expected $121.B by 2015 (26% CAGR) (MarketsAndMarkets
Report)
– By 2014, ~65% of new products will be SaaS services (IDC Report)
– SaaS-derived revenue will account for 26% of net new growth in 2014 (IDC
Report)

• New players confirm it by joining in
– Oracle and HP just to name a few
,


Why should you care?
• You will have to taste it, sooner or later

• Your job will require it

• Your startup will need it


Windows Azure Refresher

• Scalable computation in the cloud
• Durable cloud storage
• Write code, test, debug locally
• Automated management in the cloud
• Utility business model


Compute – instance types: Web Role & Storage – distributed storage systems that
Worker Role. Windows Azure applications are highly consistent, reliable, and scalable.
are built with web role instances, worker
role instances, or a combination of both.

HTTP/HTTPS

Each instance runs on its
own VM (virtual machine)
and local transient storage;
replicated as needed Guest VM
Guest VM
Guest VM
Host VM
Maintenance OS,
Hardware-optimized hypervisor

The Fabric Controller communicates with every server
within the Fabric. It manages Windows Azure, monitors
every application, decides where new applications
should run – optimizing hardware utilization.


PhooStock – Photo Sharing on Windows Azure

DEMO


What we’ve seen so far?
• Two roles – web and worker role

• They’re actually full fledged Windows
Server machines

• We can open up ports to the world

• We’re free to program it as we like (Full
Trust)

Introducing

WINDOWS AZURE + JAVA


Mental Model

• Windows
• Non-admin user
• USB drive with “runme.bat”

• Can your app run that way?


Core Principles

• Platform features:
– Native code execution (run the JVM)
– Local storage (Tomcat logs, etc.)
– Worker roles with endpoints (listen on port 80)
– Initialization (copy and launch Tomcat)
• Java-specific artifacts:
– Java storage client library
– Apache Tomcat solution accelerator
– (Eclipse tooling)


Worker Role Programming Model

• Basically DLL with main()
• In .NET
– OnStart() – initialization
– Run() – main
– OnStop() – graceful shutdown

• Expected to run forever


Anatomy of a Java Worker Role


Creating a Java Worker Role

1. Include JRE in worker role
2. Launch java.exe with your class

A better Java Worker:
• Reading configuration settings
• Discovering endpoints
• Handling changes
• Monitoring
• Diagnostics


Running Tomcat on Windows Azure

DEMO


What we’ve seen so far?
• Tomcat Solution Accelerator
– http://archive.msdn.microsoft.com/winazuretomcat

• Windows Azure can run anything that
could basically run on a Windows
machine (just add care)


Architectural Perspective
Service Instance
listen port(x)

JVM Catalina server.xml
index.jsp
Tomcat
Sub-Process

new Process()

RoleEntry bind port(x)
Point get Worker Role
runtime
info Service Instance

SQL
http://instance:y

http://instance:x

Database

Service Access
Bus Control

http://app:80 Load Fabric Table Blob
Queue
Balancer Controller Storage Storage


Windows Azure Tools for
Eclipse/Java
• Runtime
– Multiple Java app servers
– Any Windows-based JRE

• Supports
– Windows Azure Storage
– Windows Azure Drive
– Windows Azure AppFabric
– SQL Azure

• One-click cloud
deployment
• Integrated diagnostics,
monitoring, and logging


Accessing Windows Azure Storage
from Java
• Windows Azure SDK for Java
– Enables Java developers to develop against
Windows Azure Storage & Service
Management infrastructure using familiar &
consistent programming model Your Java application
• Features Windows Azure SDK for Java
Manageability,
Blobs, Tables, Helper for Http,
– Set of Java classes for Windows Azure Blobs, Queues
Instrumentation,
logging
Auth, REST, Error

Tables & Queues (for CRUD operations) & REST
Service Management
– Helper Classes for HTTP transport,
AuhN/AuthZ, REST & Error Management
– Manageability, Instrumentation &
Logging(log4j)

• Open Source Project site:
– Developed by Soyatec
– www.windowsazure4j.org

Accessing SQL Azure from Java
• SQL Azure Database
– Full relational Database as a Service

• Direct connectivity to SQL Azure
– Connect with JDBC/ODBC using the latest driver
– Eclipse tooling support

• Interoperability using REST
– Easily wrap SQL Azure with WCF Data Services
– Restlet extension for OData (Java)

• Committed to OSS support and app compatibility


Some Constraints
Platform Java
– Dynamic networking – Sandboxed networking
• <your app>.cloudapp.net • need to configure networking
• CNAME re-direct from custom
– Non-persistent local file system
domain
• logging, configuration, etc.
• cannot open arbitrary ports
– No OS-level access – REST-based APIs to services
• Table Storage – schema-less (noSQL)
– Non-persistent local file system
• Blob Storage – large files (<200GB
• allocate local storage directory block blobs; <1TB page blobs)
• read-only: Windows directory, • Queues
machine configuration files, service
• Service Bus
configuration files
• Access Control
– Available registry resources
• read-only: HKEY_CLASSES_ROOT,
HKEY_LOCAL_MACHINE, HKEY_USERS,
HKEY_CURRENT_CONFIG
• full access: HKEY_CURRENT_USER


Deployment Options
• Worker Role
– native deployment
– automated, need additional
code
– available now

• VM Role
– host your own pre-configured
VM image
– automated, full control
– In beta


Is this limited to Java?

WINDOWS AZURE +
PHP/MYSQL


Running PHP in Windows Azure
• How to Do It
– Host in Web role (like .NET)
– Supply PHP runtime

Load Balancer
PHP
– Point to runtime via FastCGI Web Role

VIP
configuration in Instance 1

• Web.config
• Web.roleConfig

• Eclipse Tooling @ PHP

http://windowsazure4e.org
Web Role
Instance 2
does the above for you


MySQL: Simple Configuration
VIP

Load Balancer

Web Role

MySQL
Worker Role


MySQL in a Windows Azure
Application
• Running MySQL in a worker role
– Copy MySQL to the worker role sub-directory
– Copy to read-write local storage
– Configure MySQL to listen on the right port
– Monitor MySQL health
• Consuming MySQL
– Discover IP address and port
– Normal access from then on
– Handle topology changes


Replication
VIP

Load Balancer

S M S
MySQL MySQL MySQL


Windows Azure Drive with Hot
Spare
VIP

Load Balancer

MySQL MySQL


MySQL Solution Accelerator
• Built by Infosys

• Master/slave configurations in a worker role
– Master election and replication on startup
– Failover and recovery
– Scale up/down slaves
– Periodic backups - full and incremental

• Available with source code


Running PHP/MySQL on Windows Azure

DEMO


PHP with Windows Azure Storage
• Windows Azure SDK for PHP @
http://phpazure.codeplex.com

• PHP programming model for Windows
Azure Storage

• Features
– PHP classes for Blobs, Tables & Queues
– Store PHP sessions in Table Storage


PHP with SQL Azure
• SQL Server Driver for PHP @
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-premises or in Windows Azure


Benefits of Database as a Service
SQL Azure
Database as a Service MySQL Solution Accelerator
• Lower TCO • Compatibility w/ MySQL apps
• Pre-configured clustering across
• Automatic High Availability multiple compute instances
– Multiple servers with live copies of • Database maintenance required
your data --- instant failover • Metered by compute hour
• Automatic Fault-Tolerance
• Automatic maintenance
– No downtime
• Instantly expand/contract databases
to meet application needs
• Metered by database
• Mission-critical SQL Server foundation


Exploring the limits of Windows Azure’s Interoperability

DOES THIS STOP HERE?


Cats + Internet = LOLCats


So what’s the catch?
• LOLCode – a cat inspired language


Anatomy of a LOLCode
Worker Role


Key Takeaways

1. Powerful platform primitives
2. Worker role with endpoint is a flexible
model
3. Windows Azure can run anything that
adheres to the „mental model”
• JAVA
• PHP MySQL
,
• Python, Ruby
• [enter your platform of choice here]


To Remember
• Tomcat Solution Accelerator
• MySQL PHP Solution Accelerator
• Windows Azure SDK for Java
• Windows Azure SDK for PHP
• Windows Azure Tools for Eclipse
• Windows Azure Interoperability

• LOLCode .NET Compiler


More, online

• AzureWorks.ro / www.azureworks.ro
– Windows Azure User Group
– LinkedIn Community
– News
– This presentation, the references and the source
files
– Comming soon – LOLCode on Windows Azure


Q&A


Don’t forget!
Get your free Azure pass! We want your feedback!

• 30+15 days, no CC req’d • Win a WP7 smartphone
– http://bit.ly/ITCAMP11 – Fill in your feedback forms
– Promo code: ITCAMP11 – Raffle: end of the day


Windows Azure Interoperability

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