Re: [Fab-user] sudo() problems

[Michael Gliwinski]

On Monday 17 Jan 2011 23:18:45 Don Jackson wrote:
> def runsudotest():
>     run( 'sudo env' )
>     run( 'sudo which sudo' )
> 
> $ fab runsudotest -H queue.likestream.net
> [queue.likestream.net] Executing task 'runsudotest'
> [queue.likestream.net] run: sudo env
> [queue.likestream.net] run: sudo which sudo
> [queue.likestream.net] out: /opt/csw/bin/sudo
> 
> So, fabric can ssh into the machine as me, and run sudo, and can find the
> sudo command as su.
> 
> def sudotest():
>     sudo( 'env' )
> 
> $ fab sudotest -H queue.likestream.net   
> [queue.likestream.net] Executing task 'sudotest'
> [queue.likestream.net] sudo: env
> [queue.likestream.net] err: ksh: sudo:  not found
> 
> Fatal error: sudo() encountered an error (return code 127) while executing
> 'env'
> 
> Aborting.
> 
> Demonstrates that running sudo directly from fabric doesn't work.

Fabric doesn't execute sudo through full login shell and it looks to me like 
the /opt/csw/bin directory may be added to PATH by some ksh startup script 
(which it doesn't execute when non-interactive/non-login).

To confirm run (not via Fabric):

    ssh queue.likestream.net 'which sudo'

If I'm right this will fail to find sudo as well.

Fabric does allow customizing the location of sudo (sudo_prefix) but only in 
>= 1.0a, I don't think there are any workarounds you can use in 0.9 apart from 
run('sudo ...').


-- 
Michael Gliwinski
Henderson Group Information Services
9-11 Hightown Avenue, Newtownabby, BT36 4RT
Phone: 028 9034 3319

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