[rancid] post-processing the diff listing before mailing?

[john heasley]

Wed, Sep 22, 2010 at 01:04:16PM -0400, Lee:
> Anyone like the idea of processing the diff listing before mailing it out?
> 
> I'd rather have rancid collect the configs and not mess with them -
> ie: rancid.conf has
>   FILTER_PWDS=NO
>   NOCOMMSTR=NO
>   ACLSORT=NO
> but I don't want things like SNMP community strings or
> encrypted/obfuscated passwords being mailed out..  So my idea is
> post-processing the diff listing before emailing it out.  Which would
> also let me know which configs changed so I could check the new
> configs & mail out a 'local config standards violations' email :)
> 
> The code is really ugly, but as a proof of concept..

why not do this outside of rancid; mail it to a script that processes
it's input, such as you've done here, and emails the result to your
diff-receivers list.  everyone can have their own flavor of diff
post-processing.

> "control_rancid" line 447
> # This has been different for different machines...
> # Diff the directory and then checkin.
> trap 'rm -fr $TMP $TMP.diff $DIR/routers.single;' 1 2 15
> cd $DIR
> if [ $RCSSYS = "cvs" ] ; then
>     # --LR-- cvs -f diff -U 4 -ko | sed -e '/^RCS file: /d' -e '/^--- /d' \
>     # --LR-- 4 is not enough, 8 seems a bit much so try 6
>     cvs -f diff -U 6 -ko | sed -e '/^RCS file: /d' -e '/^--- /d' \
>         -e '/^+++ /d' -e 's/^\([-+ ]\)/\1 /' >$TMP.diff
> else
>     svn diff | sed -e '/^+++ /d' -e 's/^\([-+ ]\)/\1 /' >$TMP.diff
> fi
> 
> # --LR-- begin: check configs of changed devices
> grep "^Index: " $TMP.diff |\
> awk '/^Index: configs/{
>   if ( ! got1 ) {
>      printf("echo\necho\necho Config check results:\n~/bin/ckConfig.sh ")
>      got1=1
>   }
>   printf("%s ", $2)
>   }
>   END{ if (got1) printf("\necho == results end ==\n") }
> ' >$TMP.doit
> /bin/sh $TMP.doit >> $TMP.diff
> ~/bin/sanitize.sh $TMP.diff >$TMP.doit
> /bin/mv $TMP.doit $TMP.diff
> # --LR-- end:   check configs of changed devices
> 
> if [ $alt_mailrcpt -eq 1 ] ; then
>     subject="router config diffs - courtesy of $mailrcpt"
> else
>     subject="router config diffs"
> fi
> 
> 
> Lee
> _______________________________________________
> Rancid-discuss mailing list
> Rancid-discuss at shrubbery.net
> http://www.shrubbery.net/mailman/listinfo.cgi/rancid-discuss