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Michael Grote 2021-06-16 18:00:59 +02:00
parent c24d53a43a
commit 811999172f
3 changed files with 86 additions and 122 deletions
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122
docker_cpu
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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
docker_cpu - Munin plugin to monitor docker container CPU usage.
=head1 APPLICABLE SYSTEMS
Should work on any Linux system that has docker support.
=head1 CONFIGURATION
Root privilege required to execute docker command.
1. Create a new file named "docker" inside the folder /etc/munin/plugin-conf.d/
2. Docker file content:
[docker_cpu]
user root
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 VERSION
v.0.1
=head1 AUTHOR
Copyright (C) 2015 Samuel Cantero <scanterog at gmail dot com>
=head1 LICENSE
GPLv3
=cut
my $docker=`sudo /usr/bin/docker`;
if ( defined $ARGV[0] and $ARGV[0] eq "autoconf" ) {
if ($docker) {
print "yes\n";
exit 0;
}
else{
print "no (Docker has not been found)\n";
exit 0;
}
}
#$docker =~ s/\s+$//;
my @containers = split "\n" , `$docker ps --no-trunc=true`;
my $result;
for my $i (1 .. $#containers)
{
my @fields = split / +/, $containers[$i];
my $id = $fields[0];
my $name = $fields[$#fields];
my $label = $name;
# manage container name containing arithmetic operators and dots. E.g, my-container.
$name =~ s/[-\+*\/\.]/_/g;
# truncate container name with "," character.
$name =~ s/,.*//g;
# prefix if container starts with 0-9
$name =~ s/^([0-9])/c$1/;
if (open(my $file, '<', "/sys/fs/cgroup/cpuacct/docker/$id/cpuacct.usage"))
{
my $total_cpu_ns = <$file>;
$total_cpu_ns =~ s/\s+$//;
close $file;
if (open($file, '<', "/sys/fs/cgroup/cpuacct/docker/$id/cpuacct.usage_percpu"))
{
my @ncpu = split / /, <$file>;
close $file;
push @result, {'name'=>$name, 'label'=>$label, 'total_cpu_ns'=>$total_cpu_ns, 'ncpu'=>$#ncpu};
}
}
}
if (defined $ARGV[0] and $ARGV[0] eq "config")
{
my $nanoSecondsInSecond=1000000000;
my $graphlimit = 1;
foreach(@result){
if ($$_{'ncpu'} || 1 > $graphlimit){
$graphlimit = $$_{'ncpu'};
}
}
$graphlimit = $graphlimit * 100;
print "graph_title Docker container CPU usage\n";
print "graph_args --base 1000 -r --lower-limit 0 --upper-limit $graphlimit\n";
print "graph_vlabel %\n";
print "graph_scale no\n";
print "graph_period second\n";
print "graph_category virtualization\n";
print "graph_info This graph shows docker container CPU usage.\n";
foreach(@result)
{
print "$$_{'name'}.label $$_{'label'}\n";
print "$$_{'name'}.draw LINE2\n";
print "$$_{'name'}.min 0\n";
print "$$_{'name'}.type DERIVE\n";
print "$$_{'name'}.cdef $$_{'name'},$nanoSecondsInSecond,/\n";
}
exit 0;
}
# Note: Counters/derive need to report integer values.
foreach(@result)
{
$tcpu = ($$_{'total_cpu_ns'}*100); #to percentage
print "$$_{'name'}.value $tcpu\n";
}
# vim:syntax=perl

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samba_locked Normal file
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#!/bin/sh
#
# Plugin to monitor the number of Samba locked files on the machine.
#
# Parameters:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# $Log$
# Revision 1.0 2007/04/16 Jon Higgs
# Initial Release - Adapted from jimmyo's processes plugin.
#
# Magick markers (optional - used by munin-config and some installation
# scripts):
#%# family=auto
#%# capabilities=autoconf
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
if [ "$1" = "config" ]; then
echo 'graph_title Samba Locked Files'
echo 'graph_args --base 1000 -l 0 '
echo 'graph_vlabel number of locked files'
echo 'graph_category fs'
echo 'graph_info This graph shows the number locked Samba Files.'
echo 'samba_locked.label Locked Files'
echo 'samba_locked.draw LINE2'
echo 'samba_locked.info The current number of locked files.'
exit 0
fi
echo "samba_locked.value $(smbstatus -L 2> /dev/null | grep -c DENY_)"
# If here, always return OK
exit 0

46
samba_users Normal file
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#!/bin/sh
#
# Plugin to monitor the number of Samba users on the machine.
#
# Parameters:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# $Log$
# Revision 1.0 2007/04/16 Jon Higgs
# Initial Release - Adapted from jimmyo's processes plugin.
#
# Revision 1.1 2014/07/24 MangaII
# Add exit 0
# WARNING : Samba 3.6 and newer block access to smbstatus for no root user
# On Debian make a "chmod a+w /run/samba/sessionid.tdb"
# smbstatus must open this file with RW option
#
# Magick markers (optional - used by munin-config and some installation
# scripts):
#%# family=auto
#%# capabilities=autoconf
if [ "$1" = "autoconf" ]; then
echo yes
exit 0
fi
if [ "$1" = "config" ]; then
echo 'graph_title Samba Users'
echo 'graph_args --base 1000 -l 0 '
echo 'graph_vlabel number of Samba users.'
echo 'graph_category fs'
echo 'graph_info This graph shows the number Samba users.'
echo 'samba_users.label Samba Users'
echo 'samba_users.draw LINE2'
echo 'samba_users.info The current number of Samba users.'
exit 0
fi
echo -n "samba_users.value "
smbstatus -b 2> /dev/null | grep -c -v -e "^Samba" -e "^---" -e "^PID" -e ^$
exit 0