Chapter 4 How to use cloud computing? Kai Liu, Qunying Huang, Jizhe Xia, Zhenlong Li,

K. Liu, Q. Huang, J. Xia, Z. Li, P. Lostritto, 2013. Chapter 4 How to use cloud computing?, In Spatial Cloud Computing: a practical approach, edited by C.Yang, Q. Huang, Z. Li, C. Xu, K. Liu, CRC Press: pp. 49-72.

Chapter 4 How to use cloud computing?

Kai Liu, Qunying Huang, Jizhe Xia, Zhenlong Li, and Peter Lostritto

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Learning Objectives

•Get familiar with two popular cloud services•Understand web application using a simple case•Learn the basic steps to deploy the web application onto cloud services

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Learning Materials

•Videos: o Chapter_4-Video_1.mp4o Chapter_4-Video_2.mp4

•Scripts, Files and others:o index.html

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Learning Modules

1. Introduction: popular cloud services

2. “Hello Cloud” web application

• General steps

• Special considerations

3. Deploy the “Hello Cloud” onto Cloud Services

• Amazon AWS

• Windows Azure

4. Conclusion and discussions

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Two Popular Cloud Computing Services

• Amazon AWS

• Since 2006

• Comprehensive platform which offers a list of cloud services such as

computing, storage, content delivery, database, deployment &

management, networking and other services (Varia and Mathew,

2012).

• URL: http://aws.amazon.com/

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Two Popular Cloud Computing Services

• Windows Azure

• Since 2008

• Microsoft cloud service which has four parts including Windows

Azure, SQL Azure, Windows Azure AppFabric, and Windows Azure

Marketplace (Chappell, 2010).

• URL: www.windowsazure.com

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Learning Modules



• General steps

• Special considerations


• Amazon AWS

• Windows Azure


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“Hello Cloud” web application

Homepage of “Hello Cloud” website

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<!DOCTYPE html><html><body><h1>Hello Cloud</h1><ul><li><a href="http://aws.amazon.com/">Amazon AWS</a></li><li><a href="http://www.windowsazure.com/en-us/">Windows Azure</a></li><li><a href="http://incubator.apache.org/cloudstack/">Apache Cloudstack</a></li><li><a href="http://www.eucalyptus.com/">Eucalyptus Cloud</a></li><li><a href="http://www.nimbusproject.org/">Nimbus</a></li><li><a href="http://opennebula.org/">OpenNebula</a></li></ul></body></html>

HTML file contents

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Web application Containers

• Apache HTTP Server (httpd)

• Open Source HTTP server for modern operating systems including

Unix and Windows

• Apache Tomcat Server

• Open Source Software implementation of the Java Servlet and

JavaServer Pages (JSP)

• Microsoft Internet Information Services (IIS)

• Deployed by Microsoft for Microsoft Windows

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Learning Modules



• HTML page

• Web application context


• Amazon AWS

• Windows Azure


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Deploy “Hello Cloud” onto AWS

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2. Authorize network access

3. Launch an instance

4. Login to the instance

7. Deploy the application

8. Create a new AMI from the running instance

5. Install and configure web server

6. Transfer the “Hello World”files to the instance

1. Sign up for Amazon AWS

Video: Chapter_4-Video_1.mp4


Step 1. Sign up for AWS

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Play Video(1)

Video: Chapter_4-Video_1.mp40:00 – 0:29

http://www.youtube.com/embed/FB4ERIbEu_s?version=3&start=0&end=29&autoplay=1


Step 2. Authorize Network Access• There are two purposes in this step:

• Allowing users to access the instance with SSH (Secure Shell) or RDP (Remote Desktop)

• Accepting web traffic on specific port

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Interface of EC2 dashboard

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Authorize Network Accessusing Security Groups

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1. Create "hellocloud" group;

2. Create a new rule for SSH;

3. Create a new rule for HTTP


Step 3. Launch an Instance

Create Key Pair

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Launching a new instance by searching and using AMI from AWS Marketplace


Step 4. Login to the instance

ssh -i ssh-keypair.pem [email protected]

• Login to the instance from Linux or Mac OS Machine

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mailto:[email protected]


Convert Amazon Key Pair to Private Key

Login to the instance from Windows machine, using Putty: http://www.chiark.greenend.org.uk/~sgtatham/putty/

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(b) Select private key

(a) Input Host Name

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(c) Type root as login name










Step 5. Install and Configure the web server

$: yum install httpd$: service httpd start$: chkconfig httpd on

$: iptables -I INPUT -p tcp --dport 80 -j ACCEPT$: service iptables save

• Install httpd

• Enable port 80 in firewall

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Step 6. Transfer "Hello Cloud" file onto the instance

$: scp -i myfirstkey.pem index.html ubuntu@ ec2-54-235-3-170.compute-1.amazonaws.com:/root

• Transfer files from Linux or Mac OS Machine

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Video: Chapter_4-Video_1.mp47:16 -- 8:07


WinSCP login

Transfer files from Windows machine, using WinSCP: http://winscp.net/eng/index.php

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http://winscp.net/eng/index.php


Transfer File using WinSCP

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Step 7. Deploy the application

$:mv /etc/httpd/conf.d/welcome.conf /etc/httpd/conf.d/welcomebak.conf$:mv /root/index.html /var/www/html$:service httpd restart

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Step 8. Create an AMI from the running instance

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Deploy “Hello Cloud” onto Azure

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2. Create a virtual machine


4. Login to the virtual machine


8. Capture an image of runninginstance

5. Turn on IIS

6. Transfer the “Hello World”Files to the instance

1. Sign up for Windows Azure

Click here to view the video demonstrating the steps.

http://youtu.be/4QiiEcSEXGg


Step 1. Sign up for Windows Azure

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5. Turn on IIS





Step 2. Create a virtual machine

Launch Windows Virtual Machine

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5. Turn on IIS





Step 3. Authorize Network Access

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5. Turn on IIS



a) Add an endpoint;

b) Specify the details of the endpoint



Step 4. Login to the Virtual Machine

Windows Azure Cloud Management interface32






5. Turn on IIS





Step 5. Turn on IIS

Turn on IIS in the virtual machine 33






5. Turn on IIS





Step 6. Transfer “Hello Cloud” file onto Virtual Machine

Cloud consumers can simply copy and paste or drag and drop files between local computer and virtual machine.

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5. Turn on IIS





Step 7. Deploy the application

1) First, create a folder named hellocloud under "C:\inetpub\wwwroot" directory in the virtual machine

2) Then, copy the home page of "Hello Cloud" application to hellocloud folder.

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5. Turn on IIS




Step 8. Capture an image of running virtual machine

1) Run sysprep in virtual machine2) Shut down the virtual machine in

Cloud Management Interface3) Click "Capture" button in the bottom

of Cloud Management Interface to capture the image.

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5. Turn on IIS



Video: Chapter_4-Video_2.mp413:52 - end


Learning Modules



• HTML page

• Web application context


• Amazon AWS

• Windows Azure


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General Steps to deploy a simple web application

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Discussion Questions1. What are the differences between terminating an instance

and stopping it on Amazon AWS? How to clean up an instance on AWS if you won't use the instance anymore?

2. What's the differences between shutting down a virtual machine and deleting it on Windows Azure?

3. What are the general steps of deploying a simple web applications onto EC2 and Windows Azure?

4. How to authorize network access in EC2 and Azure?5. What is the role of the "key pair" in EC2?6. What is "instance image" in cloud? Why is the relationship b

etween an instance and an image.

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References

• Chappell, David. "Introducing the windows azure platform." David Chappell & Associates White Paper (2010).

• Varia, J.and Mathew, S. 2012. Overview of Amazon Web Services. Available from: from: http://d36cz9buwru1tt.cloudfront.net/AWS_Overview.pdf[Accessed 23 January 2013].

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Chapter 4 How to use cloud computing? Kai Liu, Qunying Huang, Jizhe Xia, Zhenlong Li,

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