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|
#!@@PERL@@ -w
#
# Plugin to monitor packages that should be installed on systems using
# apt-get (mostly Debian, but also RedHat).
#
# The differences between this plugin and the apt plugins, is that this
# plugin separates each distro with its own plot, and actually draws
# graphs.
#
# This plugin needs a cronjob that runs apt-get update every hour or so
#
# ex
#
# /etc/cron.d/munin-plugin-apt
# 53 * * * * root apt-get update > /dev/null 2>&1
# 23 08 * * * root apt-get update > /dev/null
#
# Remember to randomize when these cronjobs are run on your servers
#
# Usage: place in /etc/munin/node.d/ (or link it there using ln -s)
#
# Parameters understood:
#
# config (required)
# autoconf (optional - used by munin-config)
# update <maxinterval> <probability>
# Updates the APT database randomly, guaranteeing there
# won't be more than <maxinterval> seconds between each
# update. Otherwise, there is a a 1 in <probability>
# chance that an update will occur.
#
# $Log$
# Revision 1.2 2004/12/10 18:51:44 jimmyo
# linux/apt* has been forced to LANG=C, to get predictable output.
#
# Revision 1.1 2004/10/19 16:57:15 jimmyo
# Added new plugin linux/apt_all, contributed by xavier.
#
# Revision 1.1 2004/01/02 18:50:01 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.3 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
# Magic markers - optional - used by installation scripts and
# munin-config:
#
#%# family=manual
#%# capabilities=autoconf
#
# Now for the real work...
use strict;
$ENV{'LANG'}="C";
$ENV{'LC_ALL'}="C";
my $statefile = "/var/lib/munin/plugin-state/plugin-apt.state";
my @releases = ("testing","unstable");
sub update_state() {
if(-l $statefile) {
die("$statefile is a symbolic link, refusing to touch it.");
}
open(STATE, ">$statefile")
or die("Couldn't open state file $statefile for writing.");
print STATE "Last update: " . localtime() . "\n";
close(STATE);
}
sub update_helpandexit() {
print("apt update <maxinterval> <probability> -- update apt databases randomly\n\n",
" maxinterval:\n",
" Enforce the updating of the apt database if it has\n",
" been more than (maxinterval many seconds since the last update.\n\n",
" probability:\n",
" There's a 1 in (probability) chance that the database\n",
" will be updated.\n");
exit(1);
}
if ($ARGV[0] and $ARGV[0] eq "autoconf")
{
`apt-get -v >/dev/null 2>/dev/null`;
if ($? eq "0")
{
print "yes\n";
exit 0;
}
else
{
print "no (apt-get not found)\n";
exit 1;
}
}
if ($ARGV[0] and $ARGV[0] eq "config")
{
print "graph_title Pending packages\n";
foreach my $release (@releases) {
print "pending_$release.label pending_$release\n";
print "pending_$release.warning 0:0\n";
print "hold_$release.label hold_$release\n";
}
exit 0;
}
if ($ARGV[0] and $ARGV[0] eq "update")
{
my $maxinterval = $ARGV[1] ? $ARGV[1] : update_helpandexit;
my $probability = $ARGV[2] ? $ARGV[2] : update_helpandexit;
# if it's been $probability seconds since the last update, do
# it now.
if(-e $statefile &&
(stat($statefile))[10] + $maxinterval < time()) {
update_state();
exec("/usr/bin/apt-get update")
or die("Unable to exec() apt-get");
}
# if the state-file doesn't exist, create it.
if(!-e $statefile) {
update_state();
}
# update the database if the 1 in $probability check hits.
if(!int(rand($probability))) {
update_state();
exec("/usr/bin/apt-get update")
or die("Unable to exec() apt-get");
}
exit(0);
}
foreach my $release (@releases) {
my $apt="apt-get -u dist-upgrade --print-uris --yes -t $release |";
open (APT, "$apt") or exit 22;
my @pending = ();
my $hold = 0;
my @remove = ();
my @install = ();
while (<APT>)
{
if (/^The following packages will be REMOVED:/)
{
my $where = 0;
while (<APT>)
{
last if (/^\S/);
foreach my $package (split /\s+/)
{
next unless ($package =~ /\S/);
push (@remove, "-$package");
}
}
}
if (/^The following NEW packages will be installed:/)
{
my $where = 0;
while (<APT>)
{
last if (/^\S/);
foreach my $package (split /\s+/)
{
next unless ($package =~ /\S/);
push (@install, "+$package");
}
}
}
if (/^The following packages will be upgraded/)
{
my $where = 0;
while (<APT>)
{
last if (/^\S/);
foreach my $package (split /\s+/)
{
next unless ($package =~ /\S/);
push (@pending, $package);
}
}
}
if (/^\d+\spackages upgraded,\s\d+\snewly installed, \d+ to remove and (\d+) not upgraded/)
{
$hold = $1;
}
}
push (@pending, @install) if @install;
push (@pending, @remove ) if @remove;
close APT;
print "pending_$release.value ", scalar (@pending), "\n";
if (@pending)
{
print "pending_$release.extinfo ", join (' ', @pending), "\n";
}
print "hold_$release.value $hold\n";
}
exit 0;
# vim:syntax=perl
|
