Introduction to Cloud Computing and Open Source solutions

“Cloud Computing and open source solutions”

By Amine AbidaPreviously ENIT student & G²FOSS member and ex-president

Ecole Nationale d’ingénieurs de Tunis08/11/2014

Amine Abida Ecole Nationale d’ingénieurs de Tunis

Introduction

• About me• Where did I worked on Cloud solutions?

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Foretaste!

• Cloud Computing? Why it’s called cloud?

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Distributed systems

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Distributed systems

• A system where its components are connectedand dealing together using message exchange.

• The system is viewed to the user as a single machine.

• Examples: Internet, Intranet, Cloud, …

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Master/Slave architecture

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Client/Server architecture

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Peer to peer architecture

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Totally centralized P2P

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Index centralized P2P

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Totally dicentralized P2P

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Cluster architecture

• Grouping machines to form a unique unit.• Many machines could execute the same

service.• Good for extending the network by simply

adding new machines.

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Publish/Subscribe architecture

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Back to the cloud…

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Back to the Cloud: Definition

• “Hardware or software provided as a service and accessible through the internet”.

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Official definition

• How did the NIST define it?

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Official definition

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Cloud advantages

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EconomicEasyness

Data storage

Security updates

Cheaper software

On demand

Accessibility


Cloud constraints

Excellent internet bandwidth

TransportabilityUnknown storage place

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Cloud risks in enterprise level

• Sharing authentication certificates.• Protecting and securing enterprise sensitive

data.• Cloud service provider is taking care of

enterprise identity manager.• Need trust while processing enterprise data.

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Cloud new needs

• Simplify– Identity management.– Certificates management.

• Provide– Warranties for processing data.

• Protect– Private data, control protection system.

• Build trust– More audits, official certifications.

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Cloud offer types

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IaaS

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PaaS

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SaaS

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Cloud offer types in details

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Cloud model types

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Going deeper: Virtual machines

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Virtual machines

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Going deeper: Identity management

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Identity service

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OAuth 2.0

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SAML SSO

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• SSO = Single Sign On


SAML SSO

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OpenID

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Going deeper: Data replication

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Data replication

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RAID

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Going deeper: Security in the cloud

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Security in the Cloud (1)

• The cloud present several security issues.• The technology is still in research phase more

than being commercialized.• What are the specific security issues?

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• No technical solutions to apply writtenregulations for protecting data in the cloud.

• No warranty that the cloud service provider would not spy on private data.

• Respect the difference of regulations from one country to another.

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• Using virtual machines on the cloud to attackother systems (especially DoS attacks).

• Warranty on defining access control policies.• No system isolation when a server is infected.

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Cloud standarisation initiatives

Open Cloud Manifesto

Cloud Security Alliance Jericho Forum

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Cloud solutions providers

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Essential Cloud service providers

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Amazon Web services

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Amazon EC2

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Google App Engine

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Google Apps for business

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SAP Cloud solutions

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Microsoft cloud solutions

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Microsoft cloud solutions: Azure

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Open source solutions

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Openess in the cloud

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OpenStack: Definition

• The most famous open source cloud software.• Licensed by Apache 2.0 license

=> Not completely free software.

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OpenStack general architecture

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OpenStack: Keystone

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• OpenStack’s identiy service• Let’s see a scenario…


OpenStack: Keystone

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OpenStack: Swift

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OpenStack: Horizon

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OpenStack: Horizon

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OpenStack: Neutron

• Neutron is the service responsible for providing network connectivity to virtual machines created by OpenStack.

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OpenStack: Nova

• Nova is the core of OpenStack for managing the virtual machines with Keystone identity provider and the stored images.

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OpenStack: Glance

• Glance is the provider of images for the creation of the virtual machines.

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Launching instances

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Launching instances

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What did we see?

• Distributed systems, main architectures• Cloud computing in details

– Definition, advantages, constraints, …– Layers, offer types– Identity management– Data replication– Security in the cloud

• Cloud solutions providers• OpenStack introduction

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What can you do to explore more?

• Install cloud software on virtual machines in your laptop.

• Use open cloud platform to develop cloud applications.

• Subscribe to some trial services of famous cloud providers.

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Next possibilities for learning

• How I could continue to work with you:– Install OpenStack services to construct our own

cloud.– Develop JAVA applications that works with

OpenStack services.– Develop and deploy Java applications in SAP HANA

Cloud Platform.

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Discussion / Q&A

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Thanks!

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About this presentation

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The content of this presentation is theproperty of the General and GeographicFree and Open Source Software society atthe National Engineering School of Tunis(Ecole Nationale d’Ingenieurs de Tunis -ENIT).You have the right to distribute thispresentation without modifying it.

Introduction to Cloud Computing and Open Source solutions

Technology

presidentecole nationale

cloud computing

cloud solutions

called cloud

tuniscloud advantages08112014

tuniscloud offertypes08112014

processing data

protectprivate data