[jira] [Updated] (WHIRR-428) Always match a stable Canonical AMI on AWS EC2

["Andrew Bayer (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WHIRR-428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Bayer updated WHIRR-428:
-------------------------------

    Attachment: WHRIR-428.diff.txt

Simple enough, I think.
                
> Always match a stable Canonical AMI on AWS EC2 
> -----------------------------------------------
>
>                 Key: WHIRR-428
>                 URL: https://issues.apache.org/jira/browse/WHIRR-428
>             Project: Whirr
>          Issue Type: Improvement
>          Components: core
>            Reporter: Andrei Savu
>         Attachments: WHRIR-428.diff.txt
>
>
> Adrian posted on jclouds-dev@ an improvement to the template selection mechanism:
> "For those of you using aws-ec2, here's a handy template expression
> that will match the latest stable image from canonical.  I've placed
> comments where explanation is likely necessary.
>      Template template = context.getComputeService().templateBuilder()
>            // need to select versions with double-digits so that lexicographic
>            // doesn't end up prefering 9.x vs 11.x
>            .osVersionMatches("1[012].[10][04]")
>            // negative lookahead for daily and testing, but ensure match
>            // ubuntu-images
>            // http://www.regular-expressions.info/lookaround.html
>            .imageDescriptionMatches("^(?!.*(daily|testing)).*ubuntu-images.*$")
>            .osFamily(OsFamily.UBUNTU).build();
> Hope this helps!"

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