[jira] [Updated] (WHIRR-461) Allow user to specify spot instance price per instance template group

["Andrei Savu (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WHIRR-461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Savu updated WHIRR-461:
------------------------------

    Attachment: WHIRR-461.patch

Patch changes:
* cleanup InstanceTemplate + support for spot price
* unit tests

I have done some manual testing on aws-ec2 and everything seems to be working fine. 
                
> Allow user to specify spot instance price per instance template group
> ---------------------------------------------------------------------
>
>                 Key: WHIRR-461
>                 URL: https://issues.apache.org/jira/browse/WHIRR-461
>             Project: Whirr
>          Issue Type: Improvement
>            Reporter: Andrei Savu
>            Assignee: Andrei Savu
>             Fix For: 0.8.0
>
>         Attachments: WHIRR-461.patch
>
>
> A natural improvement on top of WHIRR-332 is to allow the user to specify the spot instance price per instance template group.
> Proposed syntax:
> {noformat}
> whirr.templates.role1+role2.aws-ec2-spot-price=0.23
> {noformat}
> Using this feature we can have a Hadoop cluster that has both regular and spot instance like this:
> {noformat}
> whirr.cluster-name=hadoop-on-ec2
> whirr.instance-templates=1 hadoop-namenode+hadoop-jobtracker, 3 hadoop-datanode+hadoop-jobtracker, 7 hadoop-datanode+hadoop-jobtracker+noop
> # user a large instance for the namenode as needed
> whirr.templates.hadoop-namenode+hadoop-jobtracker.hardware-id=c1.xlarge
> # regular smaller instance for a few data nodes
> whirr.templates.hadoop-datanode+hadoop-jobtracker.hardware-id=m1.large
> # and spot instances for the rest of the datanodes
> whirr.templats.hadoop-datanode+hadoop-tasktracker+noop.aws-ec2-spot-price=0.32
> {noformat}

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