cloud computing demo

7/28/2019 Cloud Computing Demo

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Business applications need to run 24/7

Upgrades might bring whole system down

Small business dont have chance

Shared data center

Just plug in like utility

Like gmail no server, technical team, storage, upgrades

Business apps

Can up and running in a few days

More scalable, more secure, more reliable

Multi tenancy

Flexible for each customer

Do not have the trouble of all these

Data center, power, cooling, space,

storage, Teams of experts, Developmemaintenance

Why Cloud Computing?


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Front End Back End

Client section Cloud section

Use to access back endVarious computers, servers, datasystems

May have different user interfaces (webbrowsers/applications/mobile)

Most of the time, servers dont ru

capacityNeed virtualization to max efficieservers

Need backup serversfor redun

Front end & Back End

Central server: administers the system & traffic to ensure everything runs sm

Follows protocols


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EssentialCharacteristics

On-demandself-service

Broad networkaccess

Resourcepooling

Rapid elasticity

Customer has control over computing capabilities

Available over the network through client platforms (phones, tablets, workstations

Customers share the physical resources

Capabilities can be elastically provisioned & released

Cloud systems can log the resource usage

5 Essential Characteristics


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Deployment Models

Private Cloud: For exclusive use by a single organization comprising

multiple consumers

Public Cloud: For open use by the general public

Hybrid Cloud: Composition of two or more distinct cloud

infrastructures


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Load Balancer

Mission-critical applications require high availability

Load balancer distributes workloads across

Two or more servers

Network links, and other resources


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Infrastructure as a service (IaaS)

Clients have access to virtual servers in the service providers data

centre

Can use the rented servers any way they want

Service providers are responsible for maintaining them

Clients can enjoy flexibility & scalability

Targeted: Network/IT Architects


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Platform as a service (PaaS)

Service providers provide computing platform usually with an operating system

developer tools, database, & Web server

Can develop & run software in the cloud

Without the cost & complexity of buying & managing the underlying hardware

Trade-off: Platform providers lock down the service & clients cant use your ow

tools

Targeted: Application developers


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Software as a service (SaaS)

Cloud providers install and operate application software

The least flexibility

Can only use the providers software/application

Clients don't have to care about managing the infrastructure or platform or

software

Responsibility of the service providers

Targeted: End users


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Delivery Models Comparison

IaaS PaaS SaaS

Basic compute &

storage resources

Cloud application

platform

Cloud application

On-demand servers On-demand

application-hosting

environment

On-demand

applications

Eg. Amazon EC2 Eg. Google AppEngine Eg. Gmail, Hotmail


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Delivery Models Comparison

Standalone

Servers

IaaS PaaS SaaS

Applications

Runtimes

Database

Operating System

Virtualization

Server

Storage

Networking

Does not managed by the

service provider

Managed by the service

provider


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Ubuntu Installation

Ubuntu can be dual boot with Windows

By default, wubi.exe will install 64-bit version

To install 32-bit:

Option 1: Download 32bit ISO and place it in the same folder as Wubi.e

Option 2: Create a shortcut of Wubi.exe and modify the Target line

D:\wubi.exe" --32bit


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Openstack (Cloud OS)

Controls large pools of compute, storage, and networking resource

Through web interface (dashboard)

Enables enterprises & service providers

To offer on-demand computing resources


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Benefits

Improve utilization & automation of resources for greater cost effici

Easy to manage access to compute resources

Ability to assign & reassign IP addresses to VMs

Easily store, import, share & query OS images


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Demo Setup

Hardware

2 computers connected to same network

1 server & 1 client

20 GB free hard disk space

Software

Ubuntu OS

Openstack

Browser

OS Image file


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Security & Access Setup


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Preparing Volume for Instances

Openstack supports multiple volume types

Need at least 1 volume type before creating volumes

Each instances must have its own volume

Ubuntu requires at least 4.4 GB free space


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Adding Image to Server


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cloud computing demo

Documents