[rancid] Rancid isn't scanning the f5s from cron job.

Ehud Gavron gavron at wetwork.net
Mon Jul 13 19:51:09 UTC 2015


I've found that some of the older rancid scripts work great from a terminal
logged in with an environment, but fail when run by cron.

Specifically I have ensured that $HOME is defined for all rancid jobs, and
have also set the terminal type.

Debugging: in f5rancid, right after the creation of $host.new and $host.raw
preserve those files, by adding
   cp $host.* /tmp/

That will give you a very good indication of
- whether the login succeeded
- what commands were sent
- what commands got an expected response
- what commands broke the script

Note: if you want to try and figure out if it's an environmental variable,
then before doing rancid-run clear all your environmental variables and
try rancid-run then.  If it fails, add them back in to figure out what it
needs.

Ehud

On 07/13/2015 10:31 AM, Matt Almgren wrote:
> Very strange behavior here that I can’t pinpoint.  
> 
> When the cron job runs once per day, it doesn’t scan our f5s in multiple locations.  But when I run “rancid-run” manually (with no
> args) it picks them up – no problem.
> 
> Cron: 59 9 * * * /usr/lib/rancid/bin/rancid-run
> 
> router.db:
> <snip>
> mt-lr01.endor.lan:juniper:up
> mt-lb03.endor.lan:f5:up
> mt-lb04.endor.lan:f5:up
> <snip>
> 
> Files:
> -rw-r----- 1 rancid rancid 1072279 Jul  8 11:36 mt-lb04.endor.lan
> -rw-r----- 1 rancid rancid 1072475 Jul  8 11:36 mt-lb03.endor.lan
> -rw-r----- 1 rancid rancid   22647 Jul 10 10:01 mt-er01.endor.lan
> -rw-r----- 1 rancid rancid   22211 Jul 10 10:01 mt-er02.endor.lan
> 
> Again, running manually, it works just fine.
> 
> The logs from the cron job show me what I already know:
> 
> 
> Trying to get all of the configs.
> mt-lb03.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> mt-lb04.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> =====================================
> Getting missed routers: round 1.
> mt-lb03.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> mt-lb04.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.key,ls --full-time --color=never
> /config/ssl/ssl.crt
> =====================================
> Getting missed routers: round 2.
> mt-lb04.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> mt-lb03.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> =====================================
> Getting missed routers: round 3.
> mt-lb04.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.key,ls --full-time --color=never
> /config/ssl/ssl.crt
> mt-lb03.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.key,ls --full-time --color=never
> /config/ssl/ssl.crt
> =====================================
> Getting missed routers: round 4.
> mt-lb03.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.key,ls --full-time --color=never
> /config/ssl/ssl.crt
> mt-lb04.corp.surveymonkey.com: missed cmd(s): ls --full-time --color=never /config/ssl/ssl.crt,ls --full-time --color=never
> /config/ssl/ssl.key
> 
> 
> But when I run it manually:
> 
> 
> 
> Trying to get all of the configs.
> All routers sucessfully completed.
> 
> 
> 
> Anyone have any clues/ideas?
> 
> Thanks, Matt
> 
> 
> 
> 
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