Checking for Interfaces using XMLRPC

[Robert Becker]

Our builds differ in the sense that sometimes they have one interface and other times they
have two.  I'm having difficulty determining if a system profile has one or two
interfaces.  If I attempt to run this code on a system that doesn't have an eth2
interface Cheetah errors out.

#if $getVar($interfaces['eth2'].get('ip_address')) != ''
echo "$interfaces['eth2'].get('ip_address','')               
       $bkuphostname $bkuphost" >> /etc/hosts
#end if

I've tried using $varExists, not using the $getVar and just listing the interface, and
a few other variations.  Each one produces the same outcome.. Any reference to eth2 will
cause Cheetah to crash.

Does anyone have any thoughts/ ideas on how to check what interfaces are in a system
profile?  Or how to accomplish this?


Thanks.
Rob Becker





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[Harry Hoffman]

I haven't actually tried it but how about the following:

#set ifaces = $interfaces.keys()
#for $iface in $ifaces
#echo $ifaces[$iface]
#end for

On Fri, 2010-10-22 at 09:39 -0400, Robert Becker wrote:
>  Our builds differ in the sense that sometimes they have one
> interface
>  and other times they have two.  I’m having difficulty determining if a
>  system profile has one or two interfaces.  If I attempt to run this
>  code on a system that doesn’t have an eth2 interface Cheetah errors
>  out.
>  
>   
>  
>  #if $getVar($interfaces['eth2'].get('ip_address')) != '' 
>  
>  echo "$interfaces['eth2'].get('ip_address','')
>  $bkuphostname $bkuphost" >> /etc/hosts
>  
>  #end if
>  
>   
>  
>  I’ve tried using $varExists, not using the $getVar and just listing
>  the interface, and a few other variations.  Each one produces the same
>  outcome.. Any reference to eth2 will cause Cheetah to crash.  
>  
>   
>  
>  Does anyone have any thoughts/ ideas on how to check what interfaces
>  are in a system profile?  Or how to accomplish this?
>  
>   
>  
>   
>  
>  Thanks.
>  
>  Rob Becker
>  
>   
>  
>   
>  
>   
>  
>  
>  This communication is for informational purposes only. It is not
>  intended as an offer or solicitation for the purchase or sale of any
>  financial instrument or as an official confirmation of any
>  transaction. All market prices, data and other information are not
>  warranted as to completeness or accuracy and are subject to change
>  without notice. Any comments or statements made herein do not
>  necessarily reflect those of JPMorgan Chase & Co., its subsidiaries
>  and affiliates. This transmission may contain information that is
>  privileged, confidential, legally privileged, and/or exempt from
>  disclosure under applicable law. If you are not the intended
>  recipient, you are hereby notified that any disclosure, copying,
>  distribution, or use of the information contained herein (including
>  any reliance thereon) is STRICTLY PROHIBITED. Although this
>  transmission and any attachments are believed to be free of any virus
>  or other defect that might affect any computer system into which it is
>  received and opened, it is the responsibility of the recipient to
>  ensure that it is virus free and no responsibility is accepted by
>  JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable,
>  for any loss or damage arising in any way from its use. If you
>  received this transmission in error, please immediately contact the
>  sender and destroy the material in its entirety, whether in electronic
>  or hard copy format. Thank you. Please refer to
>  http://www.jpmorgan.com/pages/disclosures for disclosures relating to
>  European legal entities.
>  
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler

[Robert Becker]

Thanks!  That led me in the right direction.

This is what worked for me:

#for iface in $interfaces.keys()
#if $iface == "eth0"
echo "$interfaces[$iface].get('ip_address','')          $hostname
$sysname loghost" >> /etc/hosts
#else
echo "$interfaces[$iface].get('ip_address','')          $bkuphost
$bkuphostname" >> /etc/hosts
#end if
#end for

-Rob


-----Original Message----
From: cobbler-bounces(a)lists.fedorahosted.org
[mailto:[e-mail]] On Behalf Of Harry Hoffman
Sent: Friday, October 22, 2010 10:08 AM
To: cobbler mailing list
Subject: Re: Checking for Interfaces using XMLRPC

I haven't actually tried it but how about the following:

#set ifaces = $interfaces.keys()
#for $iface in $ifaces
#echo $ifaces[$iface]
#end for

On Fri, 2010-10-22 at 09:39 -0400, Robert Becker wrote:
>  Our builds differ in the sense that sometimes they have one
> interface
>  and other times they have two.  I’m having difficulty determining if a
>  system profile has one or two interfaces.  If I attempt to run this
>  code on a system that doesn’t have an eth2 interface Cheetah errors
>  out.
>  
>   
>  
>  #if $getVar($interfaces['eth2'].get('ip_address')) != '' 
>  
>  echo "$interfaces['eth2'].get('ip_address','')
>  $bkuphostname $bkuphost" >> /etc/hosts
>  
>  #end if
>  
>   
>  
>  I’ve tried using $varExists, not using the $getVar and just listing
>  the interface, and a few other variations.  Each one produces the same
>  outcome.. Any reference to eth2 will cause Cheetah to crash.  
>  
>   
>  
>  Does anyone have any thoughts/ ideas on how to check what interfaces
>  are in a system profile?  Or how to accomplish this?
>  
>   
>  
>   
>  
>  Thanks.
>  
>  Rob Becker
>  
>   
>  
>   
>  
>   
>  
>  
>  This communication is for informational purposes only. It is not
>  intended as an offer or solicitation for the purchase or sale of any
>  financial instrument or as an official confirmation of any
>  transaction. All market prices, data and other information are not
>  warranted as to completeness or accuracy and are subject to change
>  without notice. Any comments or statements made herein do not
>  necessarily reflect those of JPMorgan Chase & Co., its subsidiaries
>  and affiliates. This transmission may contain information that is
>  privileged, confidential, legally privileged, and/or exempt from
>  disclosure under applicable law. If you are not the intended
>  recipient, you are hereby notified that any disclosure, copying,
>  distribution, or use of the information contained herein (including
>  any reliance thereon) is STRICTLY PROHIBITED. Although this
>  transmission and any attachments are believed to be free of any virus
>  or other defect that might affect any computer system into which it is
>  received and opened, it is the responsibility of the recipient to
>  ensure that it is virus free and no responsibility is accepted by
>  JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable,
>  for any loss or damage arising in any way from its use. If you
>  received this transmission in error, please immediately contact the
>  sender and destroy the material in its entirety, whether in electronic
>  or hard copy format. Thank you. Please refer to
>  http://www.jpmorgan.com/pages/disclosures for disclosures relating to
>  European legal entities.
>  
>  _______________________________________________
>  cobbler mailing list
>  cobbler(a)lists.fedorahosted.org
>  https://fedorahosted.org/mailman/listinfo/cobbler
>  

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