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Getting Started With jClouds
Vikas HazratiInphina Technologies
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cloud is real !
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enterprises like to be on cloud
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reluctance due to lock-In
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abstraction
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changing the ecosystem
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multi cloud frameworks
Dasein Cloud
Delta Cloud
Fog
LibCloud
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global name space
key, value with metadata
http accessible
sites on demand
unlimited scaling
key value storage
Not the same!
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other factors
File SizeResumability
CDNReplication
SLA
Consistency ModelAuthorization
API Complexity
Not the same!
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http request
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do you want to deal with this?
ErrorsConcurrencyCloud Complexity
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OSS JAVA Framework for cloud enablement and inter cloud communication
3/2009, 1.0-beta6, 105.4k lines, $1.4M
Support many clouds including Amazon, VMWare, Azure, and Rackspace.
what is jClouds
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easy to start
Simple interface
Deals withWeb Complexity
Performance
Unit Testability
Runtime portability
Open Source
Feels like javaand clojure
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simple interface
Basic
Advanced
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simple interface
Expert
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choose your complexity and weight
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abstractions
BlobStore ( atmos, azure, rackspace, s3 )
Compute ( vcloud, ec2, gogrid, ibmdev,rackspace,rimu)
Blobstore Compute
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blobstore
// initcontext = new BlobStoreContextFactory().createContext("s3",accesskeyid,secretaccesskey);
blobStore = context.getBlobStore();
// create containerblobStore.createContainerInLocation(null, "mycontainer");
// add blobblob = blobStore.newBlob("test");blob.setPayload("testdata");blobStore.putBlob(containerName, blob);
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blobstore in detailManaging key-value storage providersSynchronous and Asynchronous APIs
BlobstoreContainer
Service
Blob
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<Blobstore Code Sample>
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vfs support
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compute: provisioningprovisioning (and re-provisioning) is cheapAPIs = automationtools exist
forgetting to turn things offlicensingerratic service quality
cloud apis are sometimes unreliableapis are very different across cloudsfeatures are very different across cloudsaccidental complexity
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provisioning with jClouds
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95 + 5
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projects using jClouds
I N F I N I S P A N
Android Integration
Gigaspaces
Elastic Search
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alternatives
Roll-your-own
Jersey, RESTEasy
EC2-based cloud apis
typica, jets3t
Dasein Cloud API
Service provided SDKs
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scepticism
api's are not that different to write a driver
open source cloud Ruby libraries (RightAws, RightRackspace, RightGoGrid, etc.) not actually that much work to abstract the API details away.
real benefit of standards - semantics of resources like vlans, security groups,
reassignable IP addresses, network attached block storage devices, etc
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reluctance to lock-in? no more ...
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References:- http://code.google.com/p/jclouds/http://anyweight.blogspot.com/http://www.slideshare.net/marakana/jclouds-at-san-francisco-java-user-grouphttp://www.youtube.com/watch?v=queixYPsIq0
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http://www.inphina.comhttp://thoughts.inphina.com
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