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#!/usr/bin/perl -w |
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# |
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# i-scream central monitoring system |
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# Copyright (C) 2000-2002 i-scream |
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# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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|
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# ----------------------------------------------------------- |
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# i-scream graph generation script |
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# http://www.i-scream.org.uk |
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my($hex_slash) = "_2f"; |
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# _ converted to a decimal then hex'd |
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my($hex_underscore) = "_5f"; |
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# maximum age (last modified) before an rrd or graph get cleaned up |
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# (in seconds) |
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my($maxrrdage) = 3600; # 1 hour |
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my($maximgage) = 3600; # 1 hour |
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# delete rrd's when they get cleaned up? |
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# if unset, will just ignore the rrd's |
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# - usually best to leave this off, we don't want to delete useful rrds :) |
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my($deleterrds) = 0; |
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# delete graphs when they get cleaned up? |
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# if unset, won't bother checking at all |
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# - usually best to leave this on |
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my($deleteimgs) = 1; |
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# Read the contents of the base directory |
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# and pull out the list of subdirectories (except . and .. :) |
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opendir(DIR, $rrddir); |
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# See what rrd we have, and generate the graphs accordingly |
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foreach my $rrd (@rrdlist) { |
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chomp $rrd; |
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# stat the file |
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my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime, |
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$ctime,$blksize,$blocks) = stat("$rrddir/$machine/$rrd"); |
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# check if it's old enough to be deleted |
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if((time - $mtime) > $maxrrdage) { |
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# do we delete the rrd, or just ignore it? |
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if($deleterrds) { |
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# if so, delete it |
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unlink("$rrddir/$machine/$rrd"); |
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} |
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# no more processing required for this rrd |
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next; |
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} |
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if($rrd =~ /^(cpu)\.rrd$/) { |
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my(@data); |
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my(@rawdata); |
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&makegraph($machine, $baserrd, $comment, \@data, \@rawdata); |
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} |
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} |
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# have a last check, maybe we can remove the directory now? |
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# (only if we're deleting stuff) |
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if($deleterrds) { |
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# Read the contents of the directory |
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opendir(DIR, "$rrddir/$machine"); |
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my(@dirlist) = grep { !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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closedir DIR; |
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if($#dirlist == -1) { |
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rmdir "$rrddir/$machine"; |
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} |
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} |
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} |
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if($deleteimgs) { |
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# Read the contents of the graphs directory |
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# and pull out the list of subdirectories (except . and .. :) |
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opendir(DIR, $imgdir); |
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my(@imgdirlist) = grep { -d "$imgdir/$_" && !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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closedir DIR; |
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|
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# look through each directoty, as they might |
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# contain images for a particular machine |
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foreach my $machine (@imgdirlist) { |
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# Read the contents of the directory |
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opendir(DIR, "$imgdir/$machine"); |
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my(@imglist) = grep { /\.png$/ && -f "$imgdir/$machine/$_" } readdir(DIR); |
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closedir DIR; |
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# See what rrd we have, and generate the graphs accordingly |
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foreach my $img (@imglist) { |
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chomp $img; |
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# stat the img |
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my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime, |
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$ctime,$blksize,$blocks) = stat("$imgdir/$machine/$img"); |
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# check if it's old enough to be deleted |
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if((time - $mtime) > $maximgage) { |
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# if so, delete it |
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unlink("$imgdir/$machine/$img"); |
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} |
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} |
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# have a last check, maybe we can remove the directory now? |
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# Read the contents of the directory |
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opendir(DIR, "$imgdir/$machine"); |
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my(@dirlist) = grep { !/^\.$/ && !/^\.\.$/ } readdir(DIR); |
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closedir DIR; |
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if($#dirlist == -1) { |
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rmdir "$imgdir/$machine"; |
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} |
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} |
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} |
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exit(0); |
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# |
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# subroutine to make some graphs |
