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https://issues.apache.org/jira/browse/VCL-862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Kurth resolved VCL-862.
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Resolution: Fixed
> Tag loaded image when request is reserved, inuse, or modified in any way
> other than a normal reload
> ---------------------------------------------------------------------------------------------------
>
> Key: VCL-862
> URL: https://issues.apache.org/jira/browse/VCL-862
> Project: VCL
> Issue Type: Improvement
> Components: vcld (backend)
> Reporter: Andy Kurth
> Assignee: Andy Kurth
> Fix For: 2.5
>
>
> It would be beneficial to tag the OS of a loaded computer once a request
> enters the reserved or inuse states. It would also be beneficial to tag a
> computer if anything is done to the computer which would not be done for a
> normal, non-cluster reservation. By tagging, I mean add something withing
> the computer's OS indicating the state. The easiest way to do this would be
> to add text to the _currentimage.txt_ file. We currently do this after the
> OS module's _post_load_ subroutine has run.
> The benefits would pertain to security and a consistent user experience. If
> for some reason, a computer gets put back into the _available_ state that had
> previously been reserved for a user but not fully sanitized or if the user
> logged in, the computer should be reloaded before being reserved for another
> user. This ordinarily wouldn't happen but is possible if one of the vcld
> processes abruptly dies or if the database is manipulated.
> Once a computer is reserved for a user, a line should be added to
> _currentimage.txt_. It could simply be a timestamp and the word _reserved_.
> If the computer is sanitized due to the user not acknowledging or connecting,
> the user accounts should be removed. Once completely sanitized, the line
> should be removed. If for any reason the computer isn't completely
> sanitized, the line would remain. Future reservation processes would see
> this and reload the computer.
> The same would be true if the user connects. An _inuse_ line would be added
> to _currentimage.txt_.
> The code should also check if anything alters the computer which would not
> ordinarily happen for a single-computer reservation such as cluster scripts
> being run. For example, an image could be a child image for a cluster. A
> user could make a reservation for the cluster image and something could be
> applied to the to the child computer. If the user never acknowledges, the
> child computer wouldn't be reloaded. It could be assigned to another cluster
> request with different computers for a different user. Inconsistent results
> could happen if the cluster scripts are run again.
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