Introduction to Cloud Computing - COA101

Introduction to Cloud Computing #COA101 Martin Hamilton Head of Internet Services http://martinh.net @martin_hamilton

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Quick Poll – About your tech

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Linux powers: Google, Amazon, Facebook, eBay etc Your TV, set top box, wireless router >500 million Android phones and tablets

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Quick Poll – Do you code ?

Promise of Utility Computing:

Promise of Utility Computing: •  Provision service rapidly •  Flexibility over scaling •  Reduce headcount, power bill,

cooling requirements •  Convert capital expenditure (CapEx)

into operating expenditure (OpEx) •  Concentrate on stuff that genuinely

adds value

Infrastructure as a Service (IaaS) o  Bring Your Own OS, software, etc o  Public, private, hybrid clouds

Platform as a Service (PaaS)

o  APIs and standards to code against Software as a Service (SaaS)

o  Typically admin dashboard + user facing Web services

IaaS: Hybrid Cloud Example

Slide credit: Phil Richards

IaaS Opportunities

•  Capacity planning needed to assess resource for move into the cloud

•  Server virtualization expertise •  Data centre design and build •  Sysadmins to run operating systems,

install and maintain software etc •  Hot topic: Live migration of workloads

a la uSwitch

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Poll Results – Do you code ?

PaaS Opportunities •  Building APIs and data models •  Developing and extending existing

open source code, e.g. Hadoop • Writing applications against these

APIs, e.g. Google AppEngine, Amazon Web Services

•  Selling cloud applications, e.g. Google Apps Marketplace

PaaS: Google API example

$options = array( 'requestScheme' => Zend_Oauth::REQUEST_SCHEME_HEADER, 'version' => '1.0', 'signatureMethod' => 'HMAC-SHA1', 'consumerKey' => $CONSUMER_KEY, 'consumerSecret' => $CONSUMER_SECRET ); $config = new Zend_Oauth_Consumer($options); $token = new Zend_Oauth_Token_Access(); $httpClient = $token->getHttpClient($options); $client = new Zend_Gdata_Docs($httpClient); $feed = $client->getDocumentListFeed( 'https://docs.google.com/feeds/documents/private/full?xoauth_requestor_id=' . urlencode($email_address)); foreach ($feed->entries as $entry) { $title = $entry->title; # etc }

SaaS example: Google Apps Gmail Huge inbox with search: keep and find everything.

Talk Business class IM and VC as easy as email.

Groups Let users easily create and work in teams.

Calendar Make sharing calendars and schedules easy.

Docs Makes collaborating as easy as creating

Sites Allow users to manage their own sites.

Postini Security and compliance solutions.

Marketplace Extend the functionality of Google Apps

Slide credit: Ross Mahon, Google

Extending Google Apps


Continuous Innovation

2010 2011

Priority Inbox

218 feature releases 95 so far…

60+ new Apps

Docs Mobile Editing

Chrome for Business

Cloud

Connect 4 Office

Chrome books

Discussions

in Docs Apps for Apps

Chrome Browser


68 releases 116 releases 217 releases

2008 2009 . 2010 2011

150+ releases already!

Value Stream Mapping

SaaS Opportunities • Migration assistance •  Systems integration, e.g. use APIs to

import/export data •  Day-to-day administration •  Use APIs to extend existing services,

e.g. Gmail contextual gadgets •  Develop new SaaS offerings

o  It's just a website, really :-)

Photo licensed under a Creative Commons Attribution-ShareAlike 2.5 License, from angrykeyboarder

RMS: GNU Emacs GNU make gcc / gdb Copyleft / GPL


A Contrary Viewpoint "If you use a proprietary program or somebody else's web server, you're defenceless. You're putty in the hands of whoever developed that software."


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How was it for you?

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Introduction to Cloud Computing - COA101

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