[jira] [Commented] (WHIRR-88) Support image creation

["Paul Baclace (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WHIRR-88?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13050910#comment-13050910 ] 

Paul Baclace commented on WHIRR-88:
-----------------------------------

Until there is a convenient way to make and save OS images to be used later by Whirr, what is the workaround?  That is, what does Whirr require of an image and how can a custom image be invoked?

Presumably, I should be able to ssh to a master created by Whirr and then follow a cloud provider specific method for saving the current image.  The trick is to save the image when it is still in a "stem cell" phase that allows it to become a master or slave, and can be modified for specific cluster details. (I've done this before with by modifying the old bash scripts, but Whirr+jclouds is coming along nicely.)


> Support image creation
> ----------------------
>
>                 Key: WHIRR-88
>                 URL: https://issues.apache.org/jira/browse/WHIRR-88
>             Project: Whirr
>          Issue Type: New Feature
>          Components: core
>            Reporter: Tom White
>
> Much of the time taken to start a cluster is in installing the software on the instances. By allowing users to build their own images it would make cluster launches faster. The way this could work is by having a create image step that brings up an instance and runs the install scripts on it before creating an image from it. The resulting image would then be used in subsequent launches.

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