[rancid] Excluding config lines in Rancid

[Vincent Aniello]

Thanks.  The problem with the 3560 was that is was set to cisco-nx instead 
of cisco.  Once I corrected this the ntp clock-period discrepancy no 
longer appeared.

On the Nexus 3548 switch the "BufferMonitor-1HourData" no longer seems to 
appear after your changes, but the INTAKE config line still does:

- !Env:  INTAKE     45            29
+ !Env:  INTAKE     45            28

Here is a snipet from nxrancid with your change for excluding INTAKE:

        s/ +$//;        # Drop trailing ' '
        next if (/Fan Zone Speed:/);
        next if (/INTAKE/);
        ProcessHistory("COMMENTS","","","!Env: $_");


Thanks again.

--Vincent



From:   heasley <heas at shrubbery.net>
To:     Vincent Aniello <VAniello at portware.com>
Cc:     rancid-discuss at shrubbery.net
Date:   04/24/2014 05:41 PM
Subject:        Re: [rancid] Excluding config lines in Rancid



Wed, Apr 23, 2014 at 10:49:49AM -0400, Vincent Aniello:
> Rancid is detecting configuration changes on a few configuration items 
in 
> Cisco switch configurations that are automatically updated and Rancid 
> should exclude from it's comparisons.
> 
> On a Cisco Catalyst 3560 switch running software version 12.2(25)SEE4 
> Rancid is reporting changes to the "ntp clock-period" command:
> 
> - ntp clock-period 36029104
> + ntp clock-period 3602910

this be filtered by stock rancid 3.0.  i can not imagine why it would be
missed until the device were not configured as 'cisco'.

> On a Cisco Nexus 3548 switch running software version 6.0(2)A1(1e) 
Rancid 
> is reporting changes to the following configuration items:
> 
>   !Env:  INTAKE     45            29
> + !Env:  INTAKE     45            28
> 
> - !Flash: bootflash:     5356844    Apr 22 17:42:48 2014 
> BufferMonitor-1HourData
> + !Flash: bootflash:     5356844    Apr 22 20:42:48 2014 
> BufferMonitor-1HourData
> 
> Can Rancid be configured to ignore changes in these lines?

Index: bin/nxrancid.in
===================================================================
--- bin/nxrancid.in              (revision 2816)
+++ bin/nxrancid.in              (working copy)
@@ -313,6 +313,7 @@
 
                 s/ +$//;                # Drop trailing ' '
                 next if (/Fan Zone Speed:/);
+                next if (/INTAKE/);
                 ProcessHistory("COMMENTS","","","!Env: $_");
     }
     ProcessHistory("COMMENTS","","","!\n");
@@ -436,6 +437,8 @@
                 return(-1) if (/command authorization failed/i);
                 return(1) if /(Open device \S+ failed|Error opening 
\S+:)/;
 
+                next if (/BufferMonitor-1HourData/);
+
                 if (/^\s*(\d+) bytes /) {
                     my($tmp) = int($1 / (1024 * 1024));
                     s/$1 bytes /$tmp MB /;

lmk if I've misplaced the INTAKE filter.

> I am currently running Rancid 3.0, but had the same issue in 2.3.6 and 
> 2.3.8.

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