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Amazon Web Services

Amazon Web Services. The Blue Book pages 19 onwards. References. http://developer.amazonwebservices.com/connect/forumindex.jspa. An overview of AWS. AWS is Amazon’s umbrella description of all of their web-based technology services. Mainly infrastructure services:

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Amazon Web Services

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  1. Amazon Web Services The Blue Book pages 19 onwards

  2. References • http://developer.amazonwebservices.com/connect/forumindex.jspa

  3. An overview of AWS • AWS 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/

  4. Amazon EC2 • EC2 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

  5. Storage • Instance –store : disappears with the instance (transient) • Block storage: SAN-like, persists across time • S3 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.

  6. Amazon Cloud-front • Cloud-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).

  7. S3 • Amazon web services API support the ability to: • Find buckets and objects • Discover their meta data • Create new buckets • Upload new objects • Delete existing buckets and objects • When 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

  8. Bucket Naming • Flat namespace • Names 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

  9. EC2 concepts • See figure 2.1 • Instance: virtual server running a guest os of your choice • AMI: 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.

  10. 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?

  11. How to access Ec2? • AWS console http://console.aws.amazon.com • The ElasticFox firefox plugin • The amazon command line tool

  12. Typical Use in an organization • Maintain 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

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