[jira] [Commented] (SLIDER-1114) Provide option to run components as different user(s)

["Manoj Samel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLIDER-1114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15328475#comment-15328475 ] 

Manoj Samel commented on SLIDER-1114:
-------------------------------------

Hi, 

I attached a small document describing the implementation details of this feature. As mentioned in the doc, I am able to start each component as different user and do a correct status; but unable to stop the component process when doing slider stop command. 

If anyone could quickly take a look at the document and give any pointers, it will be greatly appreciated.

Thanks,

> Provide option to run components as different user(s)
> -----------------------------------------------------
>
>                 Key: SLIDER-1114
>                 URL: https://issues.apache.org/jira/browse/SLIDER-1114
>             Project: Slider
>          Issue Type: New Feature
>    Affects Versions: Slider 0.80
>            Reporter: Manoj Samel
>            Assignee: Manoj Samel
>         Attachments: run_components_as_different_users.pdf
>
>
> Environment is slider .80 on Hadoop 2.6 secured cluster
> A component is launched for each distinct user of the service (via upgrade). E.g. when user A accesses service, do a "upgrade" and create a component for user A. When user B comes, create another component for user B etc.
> At present, all of these components are launched & run as single linux user - this is the user who launches slider AM.
> Security needs may demand that each component be run as its own linux user. This ask is similar to how secured Hadoop cluster launches MR jobs for user using user's login
> Expected ask is as follows ...
> Launch slider AM as user "admin"
> Run component for user A as user A's uid and gid
> Run component for user B as user B's uid and gid
> It seems this was thought about and then commented out in some version
> In version .80; resource_management/core/resources/system.py, I noticed that class Execute can take a parameter "user". Its not clear if and how this could be used. In core/shell.py, the logic around "user" is commented out with comment " Do not su to the supplied user" 



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