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Autocloud

Autocloud. by Bryan Rosander. Motivation. Cloud computing makes vast computing resources available at a reasonable price on an as-needed basis Configuring multiple machines to work together can be a tedious and time consuming task

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Autocloud

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  1. Autocloud by Bryan Rosander

  2. Motivation • Cloud computing makes vast computing resources available at a reasonable price on an as-needed basis • Configuring multiple machines to work together can be a tedious and time consuming task • Automation of configuration and scaling set up would make these resources more accessible

  3. Basic Concepts • Autocloud uses Amazon’s Web Services API to provide functionality • Auto Scaling • Cloud Watch • Elastic Compute Cloud (EC2) • Identity and Access Management • Simple Storage Service (S3) • Simple Queue Service (SQS) • Autocloud uses many third party libraries to coordinate the use of these services (most prominent listed) • Apache Commons • Apache Tomcat • Google Web Toolkit • Guice • Hibernate • HSQLDB • JbCrypt • Jsch • Log4j, Slf4j

  4. Logic Design • User defines configurations • Configurations made up of machine groups • Machine groups have instance type, scaling information • Entire configuration is instantiated at the end • Updates to scaling conditions can be made even after instantiation

  5. Implementation • Last semester’s version was designed to build out instances one-off • This semester needed to support Auto-Scaling • Made the following changes: • Stored user files and startup scripts in S3 • Utilize auto-scaling functionality to instantiate instances • Use user data to have instances notify the application when they start • Generate script that allows instances to retrieve their own files from S3

  6. Old Sequence Diagram

  7. New Sequence Diagram

  8. Conclusions • New approach is better for several reasons • Auto Scaling • Allow for MUCH larger files • Faster instantiation • Less bandwidth, IO use by host machine • However, it is more complex • Reliance on 6 AWS services instead of 1 • More communication, configuration • Instances must have AWS credentials to send SQS messages, find out what other machines are in their configuration

  9. Demo/Questions

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