Additional scripts for Zabbix agent on Linux to discover and monitor several services
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#!/usr/bin/perl -w
use strict;
use warnings;
use LWP::Simple;
use Getopt::Long;
use JSON;
my $uri = 'http://127.0.0.1:3128/squid-internal-mgr/info';
my $what = 'all';
my $help = 0;
my $pretty = 0;
GetOptions(
"uri=s" => \$uri,
"what=s" => \$what,
"help" => \$help,
"pretty" => \$pretty
);
my $res = {};
my $status = get($uri);
unless ($status){
print 'ZBX_NOTSUPPORTED';
exit 1;
}
foreach my $line (split(/\n/, $status)){
if ($line =~ m/^Squid Object Cache: Version (\d+(\.\d+)*)/){
$res->{version} = $1;
} elsif ($line =~ m/^\s+Number of clients accessing cache:\s+(\d+)/){
$res->{clients_num} = $1 * 1;
} elsif ($line =~ m/^\s+Number of HTTP requests received:\s+(\d+)/){
$res->{requests} = $1 * 1;
} elsif ($line =~ m/^\s+Hits as % of all requests:\s+5min:\s+(\d+(\.\d+)?)%,/){
$res->{hits_req_percent} = $1 * 1;
} elsif ($line =~ m/^\s+Hits as % of bytes sent:\s+5min:\s+(\d+(\.\d+)?)%,/){
$res->{hits_bytes_percent} = $1 * 1;
} elsif ($line =~ m/^\s+Memory hits as % of hit requests:\s+5min:\s+(\d+(\.\d+)?)%,/){
$res->{mem_hits_req_percent} = $1 * 1;
} elsif ($line =~ m/^\s+Disk hits as % of hit requests:\s+5min:\s+(\d+(\.\d+)?)%,/){
$res->{disk_hits_req_percent} = $1 * 1;
} elsif ($line =~ m/^\s+Storage Swap size:\s+(\d+)\sKB/){
$res->{stor_swap_size} = $1 * 1024;
} elsif ($line =~ m/^\s+Storage Swap capacity:\s+(\d+(\.\d+)?)% used, (\d+(\.\d+)?)% free/){
($res->{stor_swap_used_percent}, $res->{stor_swap_free_percent}) = ($1 * 1, $3 * 1);
} elsif ($line =~ m/^\s+Storage Mem size:\s+(\d+)\sKB/){
$res->{stor_mem_size} = $1 * 1024;
} elsif ($line =~ m/^\s+Storage Mem capacity:\s+(\d+(\.\d+)?)% used, (\d+(\.\d+)?)% free/){
($res->{stor_mem_used_percent}, $res->{stor_mem_free_percent}) = ($1 * 1, $3 * 1);
} elsif ($line =~ m/^\s+Mean Object Size:\s+(\d+(\.\d+)?)\sKB/){
$res->{mean_object_size} = int($1 * 1024);
} elsif ($line =~ m/^\s+CPU Time:\s+(\d+(\.\d+)?)\sseconds/){
$res->{cpu_time} = $1 * 1;
} elsif ($line =~ m/^\s+CPU Usage:\s+(\d+(\.\d+)?)%/){
$res->{cpu_usage} = $1 * 1;
} elsif ($line =~ m/^\s+CPU Usage, 5 minute avg:\s+(\d+(\.\d+)?)%/){
$res->{cpu_usage_avg_5min} = $1 * 1;
} elsif ($line =~ m/^\s+Maximum number of file descriptors:\s+(\d+)/){
$res->{fd_max} = $1 * 1;
} elsif ($line =~ m/^\s+Number of file desc currently in use:\s+(\d+)/){
$res->{fd_used} = $1 * 1;
}
}
if (defined $res->{fd_max} and defined $res->{fd_used}){
$res->{fd_used_percent} = int($res->{fd_used} * 100/ $res->{fd_max});
}
if ($help){
print "Valid keys are:\n\n";
print "$_\n" for keys %{$res};
exit 0;
}
if ($what eq 'all'){
print to_json($res, { pretty => $pretty });
}
elsif (defined $res->{$what}){
print $res->{$what};
}
else{
print 'ZBX_NOTSUPPORTED';
}
exit 0;