Amazon Web ServicesAmazon Web ServicesThe Blue Book pages 19 onwards

ReferencesReferenceshttp://

developer.amazonwebservices.com/connect/forumindex.jspa

An overview of AWSAn overview of AWSAWS is Amazon’s umbrella

description of all of their web-based technology services.

Mainly infrastructure services:◦Amazon Elastic Compute Cloud (EC2)◦Amazon Simple Storage Service (S3)◦Amazon Simple Queue Service (SQS)◦Amazon CloudFront◦Amazon SimpleDB

Amazon EC2 is hiring◦http://aws.amazon.com/ec2-jobs/

Amazon EC2Amazon EC2EC2 provides web services API for

provisioning, managing, and deprovioning virtual servers inside amazon cloud.

Applications anywhere on the Internet can launch a virtual server in the amazon cloud with a single web services call (either REST or SOAP WS call)

Where is SOAP API? For example, http://docs.amazonwebservices.com/AmazonEC2/dg/2006-06-26/using-soap-api.html

StorageInstance –store : disappears with

the instance (transient)Block storage: SAN-like, persists

across timeS3 is independent of an instance:

for archival purposes: vault: store it now and retrieve it at a later date

Amazon: SimpleDB: Relational database better than MySQl or Oracle for reliability.

Amazon Cloud-frontCloud-based content distributing

network enables you to place the content at the edges of the network for rapid delivery.

Place the contents in S3 and run the application from anywhere and the content is moved to where the application is (to the edges).

S3Amazon web services API support the ability to: Find buckets and objectsDiscover their meta dataCreate new bucketsUpload new objectsDelete existing buckets and objectsWhen manipulating the buckets you can

optionally specify where they should be stored.Use REST API preferably something that

abstracts out even that: Jets3t; s3cmd (command line)

BitTorrent access to S3 is also available

Bucket NamingFlat namespaceNames may contain only

lowercase letters, numbers, periods, underscores, and dashes, and must start with a number or letter

Create your own namespace with your own bcukets

EC2 conceptsSee figure 2.1Instance: virtual server running a

guest os of your choiceAMI: Pristine image of your server so

that you can launch any number of instance from this. Minimally machine image will operating systems + pre-installed tools.

Elastic IP address: Not static not dynamic but elastic; an IP reserved for your use; disappears once the server is terminated.

EC2 (contd.)Availability zone: Any two availability

zones are guaranteed to share any common points of failure ( US, EU, Asia/Pacific)

Security group: define the firewall/security. Defines what can talk to your instances. (Ex; http, and not sftp etc.)

Snap shot: You can take snapshots of block volume (that can be formatted etc) and is stored in S3 for later use or for rollback etc.

What is the difference between instances and machine images?

How to access Ec2?AWS console

http://console.aws.amazon.comThe ElasticFox firefox pluginThe amazon command line tool

Typical Use in an organizationMaintain a library of AMIs for the

business◦ May contain legacy systems or company-

specific systems◦ Harden AMIs using such software as Bastille

Launch instances for non-technical but domain experts to work with.◦ What will you provide them so that they

can start working?Use S3 for archival storage and shared

storage