Extending SOA into the Cloud - isg-inc.com - Extending SOA into the Cloud.pdf · Mule ESB...

International SOA Conference 2009

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Extending SOA into the Cloud

SOA and Cloud Computing

Frank Greco

[email protected]

V0.5


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Topics

� Services, SOA, Grids/HPC Evolution

� Web 2.0 and Evolution of IT Services

� Many Definitions of Cloud Computing

� Cloud Layers

� IaaS/HaaS, SaaS, PaaS

� Types

� Internal/External/Hybrid

� Vendor Survey

� PaaS/Cloud Example

� Issues

� Next Steps


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Clouds – Technology Memes

ServicesServices

GridGrid

HPCHPC

IT Governance

IT Governance

Web 2.0Web 2.0

ESBESB

Clouds


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SOA/Grid/HPC

� Early Services (1980’s?)� SOA Existed Before “SOA”

� SOA = Formalization of Services Principles

� Services and Loose-Coupling not New

� SOA is a Computing System Architecture Reliant on Services

� HPC – Moving Computation to Appropriate HW

� Grid� SOA to provide HPC computation by divide and conquer (e.g.,

Map-Reduce)

� Later, Data Grids, Service Grids…

� The Grid eventually became Another Service

� Can be a SOA and can be part of a SOA (using an ESB)


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Grids and ESB

Javaspaces

Map-Reduce

Mule ESB


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Evolution of the Cloud

� Corporate IT

� Was Already Used to Providing IT services

� Web 2.0

� Collaborative

� More programmatic

� Rich user experience

� RESTful APIs

� Rapid application development

� Services will come from everywhere…


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Enterprise IT 2.0

In other words…

Given the existing Internet infrastructure, Amazon, Google, fast networks, in-memory persistent engines, virtualization, columnar/distributed databases, web 2.0, HTML 5.0, et al…

How Would You Build your IT Today?


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So What Really is Cloud Computing?...


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What is Cloud Computing

� Invisible IT

� No Concern about Infrastructure Details

� “Elastic” Scalability (on Demand)

� Applications and Data not Local

� Removal of Complexity

� The Network is the Platform

� Friction-less Application Development

� Independent of Platforms

� Improves Business Agility

Cloud Computing is an Implementation of SOA

Definitions from a collection

of “cloud experts”

Definitions from a collection

of “cloud experts”


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SOA / Cloud Computing Relationship

SOA = Services Oriented ARCHITECTURE

Cloud Computing is an Implementation of SOA

A SOA can be Deployed in a Cloud


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Many Definitions of Cloud Computing

� Too Many Definitions!!!

� Some Re-Positioning of Older Products

� But… Some True Innovations

� Satisfying Business Need is First Priority

� Semantics and Definitions are Secondary


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Improving Data Center Efficiency

Google Mail Microsoft Exchange

No Servers Servers

No Storage Storage costs

No Maintenance Team Need IT Staff

No Versioning Issues Versioning Mess

No Scalability Issues Budget Concern

Highly Reliable HA/DR is huge concern

Just Use Must Wait to Use

Lets compare SaaS to old-style Enterprise computing…


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Everything as a Service

� SaaS – Software as a Service� Hosted Software Accessible over the Internet (Web)

� Typically Subscription Model (or ad-based)

� No Storage/HA/DR Issues

� No Maintenance

� Regular Revenue Stream for Provider

� PaaS – Platform as a Service� Enables Developers to Build Applications

� Development Platform/Framework hosted on an IaaS (Cloud IDE)

� Theoretically Provides an Abstraction independent of the IaaS Provider

� Also Provides API for Middleware and Scalability

� IaaS – infrastructure as a Service� Virtual Hardware, Virtual Data Center

� Computing Infrastructure (machines, RAM, network, etc)

� May include Platform Virtualization (VM)

� Service Level Agreements


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Stratification of Cloud Computing Vendors

Hardware

Hardware/Infrastructure as a Service Iaas

Platform as a Service

Paas

Software as a Service

SaaS


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Everything as a Service (EaaSy!)

� Software as a Service – SaaS

� Ex: SalesForce, Google Docs, Zoho, SlideRocket

� Platform as a Service – PaaS

� Ex: Force, Google AppEngine, Microsoft Azure,

GigaSpaces, Twitter, Facebook, Eucalyptus

� Hardware as a Service (Infrastructure as a Service) – IaaS

� Ex: Amazon EC2/S3, GoGrid, Sun/Oracle, Joyent,

HP, IBM

Confusing terms…


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Enterprise Cloud Computing

� Internal

� Ex: Merrill Lynch / Bank of America

� External

� Ex: Gmail, Amazon EC2/S3

� Hybrid

� Ex: Eucalyptus Systems

� Large Enterprises will probably use a mix of Cloud and non-Cloud

� Need to Leverage Multiple Clouds

� Cloud Federations (collaborating clouds)


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High-Level Cloud Topology

External

Data Center-1

Data Center-2

Peak loads could go to DataCenter-2 or External


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Current Cloud Vendors


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Cloud Vendors - Amazon

� DevPay

� Mechanical Turk

� Alexa Web Information Service

� Alexa Top Sites

� Alexa Site Thumbnail

� Fulfillment Web Service (FWS)

� Elastic Compute Cloud (EC2)

� SimpleDB

� Simple Storage Service (S3)

� CloudFront

� Simple Queue Service (SQS)

� Elastic MapReduce

� Flexible Payments Service (FPS)

� Service (FWS)

Cloud Services


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Cloud Vendors – Zoho

www.zoho.com


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Cloud Vendors – Microsoft Azure

www.microsoft.com/azure


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Cloud Vendors – Google App Engine

Python

Django

Java

Grails

Groovy

Google Web Toolkit

GAE


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Cloud Vendors – Salesforce/Force

Both a Saas and Paas Vendor


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Cloud Vendors – Federations

Force.com and Google App Engine

developer.force.com/appengine

“Force.com for Google App Engine provides Java and Python libraries that allows you to access the Force.com Web Services API from within Google App Engine applications.”

Other federations are forming, eg, Facebook and EC2/S3. Many more to come.


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Deploying SOA into the Cloud - Example

GigaSpaces

� An SOA Tool that Offers PaaS – allows others to become SaaS

� Leverages IaaS – Amazon EC2, others…

� Application Portability

� Works with Internal/External/Hybrid Clouds

� Auto Scaling

� Self Healing

� Highly Secure (multi-level security)

� Leverages Spring for Portability


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XAP: Platform as a Service for the Enterprise

Platform as a Service (PaaS)

Infrastructure as a Service

GigaSpaces XAP

Scale-out Application Server

Business Application

Tenant App. View

Users

Tenant App. View

Tenant App. View

Users Users

Business Application as a Service

Cloud Computing Framework for XAP

Amazon Private Cloud

User Application

Messaging

Data

Grid

SLA

Orchestration

Monitoring

CPU

Storage

Network

Billing

Slide courtesy of Gigaspaces.com


Deploying a SOA - PaaS

27www.gigaspaces.com/mycloud



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Deployed Application with UI

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Deployment:10 minutes

Deployment:10 minutes


Dynamic Web-Application Scalability

GSC Machine

Web application

CloudSlide courtesy of Gigaspaces.com


Fully Secured

� Support Amazon Security Groups

� Firewall settings blocking specific ports

� Secured remote desktop access

� Built-in SSH tunneling

� Secured Database access

� via mySQL security roles

� Secured grid deployment infrastructure

� Start

� Stop

� Deploy/ Un-deploy

� Secured In-Memory-Data-Grid access roles

� Class Level

� Object Level

� Operation Level


Multi Level Security

Slide courtesy of Gigaspaces.com


Real-time Collaboration:

�Chart Images can be imported into a blog, message board or chat

High Quality Feature-rich Customer Experience:

�Real-time data

�Full function: e.g. trends, analysis, channel lines

�Annotation capable

�Easily customizable

Deploying Real-time Web Clients in the Cloud


HTML 5.0 WebSocket/Server-Sent-Events

� Capabilities

� Socket connectivity via Browser (or any http client)

� Stream real-time data at ultra fast rates to desktop-like

browser applications

� Bi-directional communication: send data and trade

over the same connection

� Collaboration and chat: real-time sharing of excel

models, reports, charts

� Display data from multiple sources in a single browser

(cross-site access)

� www.kaazing.com


Traditional Architecture

Java EE Container

�

We

b A

pp

licatio

n Lo

gic

EJB

JMS

RMI--TCP

(Full-Duplex)

JDBC--TCP

(Full Duplex)

HTTP(Half-Duplex)

Database

Stock Trading Client

IMAP--TCP

(Full Duplex)

XMPP--TCP

(Full Duplex)

JMS--TCP

(Full Duplex)

JMS--TCP

(Full-Duplex)

JMS

Custom TCP

(Full-Duplex)

Chat Client

EJB Client

JDB

C

ChatServer

Se

rve

r

Chat

Stock

Client JMS

Stock

Server

HTTP(Half-Duplex)

HTTP(Half-Duplex)

HTTP(Half-Duplex)

Mail ServerMail Client


Java EE

EJB

JDB

C

ChatServer

Custom--TCP (Full-Duplex)

XMPP --TCP (Full-Duplex)

IMAP --TCP (Full-Duplex)

JDBC--TCP (Full-Duplex)

RMI--TCP (Full-Duplex) JDBC--TCP (Full-Duplex)

Mail Server

Stock

Server

>|

<K

aa

zing

Ga

tew

ay

TCP over HTTP(Full-Duplex)





Kaazing Architecture – Web 2.0 meets IT 2.0

Cloud


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Monitoring as a Service

EvidentSoftware.com


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Cloud Computing Issues

� Moving large datasets in the cloud

� Guaranteed levels of security

� Inter-Cloud operability

� Applications typically need to be cloud-aware

� Current enterprise apps can't be migrated conveniently

� Risk: Legal, regulatory, and business

� Difficulty of managing cloud applications

� Lack of SLA Maturity

� True cost advantage for cloud computing?


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Next Steps?

� Messaging as a Service

� Collaboration as a Service

� Notification as a Service

� Data and Data Quality as a Service

� Cloud Federations

� Utility Computing across Vendors

� Security Certifications

� SLA Guarantees

� Latency Guarantees

� New Developer Languages

� Huge Application Developer Wave


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Cloud Computing

Questions?

Extending SOA into the Cloud - isg-inc.com - Extending SOA into the Cloud.pdf · Mule ESB...

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