mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
fba800ae52
Suspicious sections: plugins/mail/postfix_mail_stats recieved.label plugins/nginx/nginx_vhost_traffic
144 lines
2.9 KiB
Perl
Executable file
144 lines
2.9 KiB
Perl
Executable file
#! /usr/bin/perl
|
|
# Poor man's Munin Node
|
|
# Usable with as little as Perl 5 core
|
|
#(c) 2012 LGPL - Steve Schnepp <steve.schnepp@pwkf.org>
|
|
|
|
use warnings;
|
|
use strict;
|
|
use Carp;
|
|
use Data::Dumper;
|
|
|
|
use Getopt::Long;
|
|
use Pod::Usage;
|
|
|
|
$| = 1;
|
|
|
|
my $VERSION = "1.0.0";
|
|
|
|
my $port; # Default is stdin/stdout
|
|
my $verbose;
|
|
my $host;
|
|
my $plugin_dir = "plugins";
|
|
my $spoolfetch_dir;
|
|
|
|
{
|
|
my $man = 0;
|
|
my $help = 0;
|
|
|
|
GetOptions(
|
|
'port|p=i' => \$port,
|
|
'verbose|v' => \$verbose,
|
|
'plugin-dir|d=s' => \$plugin_dir,
|
|
'host|h=s' => \$host,
|
|
|
|
'spoolfetch-dir|s=s' => \$spoolfetch_dir,
|
|
|
|
'help|?' => \$help,
|
|
man => \$man,
|
|
) or pod2usage(2);
|
|
pod2usage(1) if $help;
|
|
pod2usage(-exitstatus => 0, -verbose => 2) if $man;
|
|
}
|
|
|
|
# Handle $port
|
|
if ($port) {
|
|
die ("--port is not yet supported");
|
|
}
|
|
|
|
$host ||= `hostname`;
|
|
chomp($host);
|
|
print "# munin node at $host\n";
|
|
while(my $line = <>) {
|
|
chomp($line);
|
|
my ($cmd, $arg) = split(/ /, $line, 2);
|
|
$arg ||= "";
|
|
my $plugin_filename = $plugin_dir . "/" . $arg;
|
|
if (! $cmd) { next; }
|
|
if ($cmd eq "version") {
|
|
print "munins node on $host version: $VERSION";
|
|
next;
|
|
} elsif ($cmd eq "nodes") {
|
|
print "$host\n";
|
|
print ".";
|
|
next;
|
|
} elsif ($cmd eq "quit") {
|
|
exit(0);
|
|
} elsif ($cmd eq "list") {
|
|
opendir(PLUGIN_DIR, $plugin_dir) or die("cannot open: $@");
|
|
while(my $plugin = readdir(PLUGIN_DIR)) {
|
|
chomp($plugin);
|
|
if ($plugin =~ m/^\./) { next; }
|
|
next unless (-x "$plugin_dir/$plugin");
|
|
print "$plugin ";
|
|
}
|
|
closedir(PLUGIN_DIR);
|
|
next;
|
|
} elsif ($cmd eq "config" || $cmd eq "alert" || $cmd eq "fetch") {
|
|
if (-d $plugin_filename || ! -x $plugin_filename) {
|
|
print "# Unknown plugin [$arg] for $cmd";
|
|
next;
|
|
}
|
|
my $arg_plugin = ($cmd eq "fetch") ? "" : $cmd;
|
|
system($plugin_filename, $arg_plugin);
|
|
print ".";
|
|
next;
|
|
} elsif ($cmd eq "cap") {
|
|
print "cap ";
|
|
print "spool " if $spoolfetch_dir;
|
|
next;
|
|
} elsif ($cmd eq "spoolfetch" && $spoolfetch_dir) {
|
|
system("$spoolfetch_dir/spoolfetch_$host", $arg);
|
|
print ".";
|
|
next;
|
|
}
|
|
|
|
# Arriving here is not a good sign
|
|
print "# Unknown command. Try list, nodes, config, fetch, version, alert or quit";
|
|
} continue {
|
|
print "\n";
|
|
};
|
|
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
pmmn - Poor man's Munin Node
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
pmmn [options]
|
|
|
|
Options:
|
|
|
|
--port Port to listen to (default is stdin/stdout)
|
|
--verbose Verbose mode
|
|
--plugin-dir Plugin directory (default is current dir)
|
|
--host Host name (default is /bin/hostname)
|
|
|
|
--spoolfetch-dir Spoolfetch plugin dirs (default is disabled)
|
|
|
|
--help brief help message
|
|
--man full documentation
|
|
|
|
=head1 OPTIONS
|
|
|
|
=over 8
|
|
|
|
=item B<-help>
|
|
|
|
Print a brief help message and exits.
|
|
|
|
=item B<-man>
|
|
|
|
Prints the manual page and exits.
|
|
|
|
=back
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
B<This program> emulates a poor man's munin-node. It can listen on a port or,
|
|
most frequently read its commands from stdin, sending output on stdout. This is
|
|
in order to be managed by inetd or a custom SSH vehicle.
|
|
|
|
=cut
|