Apache JClouds
- 1. Apache JClouds Cloud interfaces, simplified Hiranya Jayathilaka Dept. of Computer Science, UCSB S
- 2. Roadmap S Cloud computing S Challenges S Apache JClouds S Demo S Pros and cons S Summary and conclusion
- 3. The Cloud Revolution S Cloud computing is revolutionizing the way software is developed and delivered. S Software-as-a-Service (SaaS) S Platform-as-a-Service (PaaS) S Infrastructure-as-a-Service (IaaS)
- 4. Many Benefits S Cost effective S Reduced maintenance overhead S Easy and fast provisioning – Improved time-to-market S Autoscaling and elasticity S Fault tolerance
- 5. The Other Side of the Coin
- 6. Challenges S How do you select the cloud provider that’s right for you? S How do you port your application from one cloud provider to another? S How to develop multi-cloud applications?
- 7. Enter, JClouds S An open source library that facilitates developing applications for a wide range of cloud providers. S Implement your application using JClouds, and run it on your favorite cloud without any code changes. S Simple, intuitive APIs. S Java and Clojure support.
- 8. History S Started in March 2009 by Adrian Cole as an open source project. S Initially based in London, developed mostly by European Java community. S Contributed to Apache in April 2013. S http://wiki.apache.org/incubator/jcloudsProposal S Already popular in the industry – Used by the likes of Adobe, CloudBees, RedHat, Twitter and SalesForce. S http://jclouds.incubator.apache.org/documentation/reference/ apps-that-use-jclouds/
- 9. Getting Started S No binary download J S The documentation provides the necessary configurations for popular project management tools, so JClouds can be included in your project as a dependency. S Maven S ANT S Leiningen
- 10. JClouds APIs S Compute Service API S For managing compute nodes (VMs) in the cloud S Blobstore API S For storing data in the cloud
- 11. Compute Service API S Key abstractions S Hardware S Operating system S Template S Supported providers S AWS (EC2), Bluelock, CloudSigma, ElasticHosts, Go2Cloud, GoGrid, Green House Data, HP, Ninefold, OpenHosting, Rackspace, ServerLove, SkaliCloud, SoftLayer, Stratogen, TRMK, TryStack
- 12. Starting a VM from an Image
- 13. If You Don’t Have an Image?
- 14. More Control Over Templates
- 16. SSH to Remote VM
- 17. Dealing with Package Managers
- 19. Blobstore API S Key abstractions S Container S Folder S Blob S Supported providers S AWS (S3), CloudOne, HP, Azure, Ninefold, Rackspace, Synaptic
- 21. Write Blob
- 22. Upload File
- 24. Logging Support
- 25. Demonstration S Scenario S Start an Ubuntu VM in EC2 S Upload a Python script and a Java application to the VM (Java application also based on JClouds) S Install Python and JRE on the VM using apt-get S Run the Java application on the VM to download a data file from S3 S Run the Python script on the data file S Upload the output to S3
- 26. Pros S Powerful abstractions: Simple + High-level + Convention over configuration S Location awareness baked into the API S Easily manage clusters of nodes S Excellent portability S Unit testable S Free and open source (ASL 2.0) S “It just works” (YMMV)
- 27. Cons S Still in the Apache Incubator S Limited documentation S Potential “Jar hell”
- 28. Summary S Cloud computing brings a horde of benefits – But the diversity can be overwhelming. S Several challenges with respect to evaluating cloud vendors and porting application across cloud platforms. S Apache JClouds provides a simple and feature-rich approach for developing cloud applications that are easily portable across multiple vendors.
- 29. Thank You & Questions
- 30. References S Project website: http://jclouds.incubator.apache.org S Apache Incubator proposal: http://wiki.apache.org/incubator/jcloudsProposal S Getting started: http://jclouds.incubator.apache.org/documentation/ gettingstarted/ S Demo code: https://github.com/hiranya911/jclouds-demo