mirror of
https://github.com/munin-monitoring/contrib.git
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282 lines
8.4 KiB
Perl
Executable File
282 lines
8.4 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# Copyright Bjorn Ruberg <bjorn@ruberg.no>
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# Licenced under GPL v2
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#
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# TODO:
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# - Check for OpenLDAP version
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# We use one script for all monitoring.
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# This script may be symlinked with several names, all
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# performing different functions:
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# slapd_statistics_bytes
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# slapd_statistics_pdu
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# slapd_statistics_other
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# slapd_connections
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# slapd_waiters
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# slapd_operations
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# slapd_operations_diff
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# Magic markers
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#%# family=auto
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#%# capabilities=autoconf suggest
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# use strict;
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use Net::LDAP;
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use Data::Dumper;
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use vars qw ( $config $param $act $scope $descr $cn $vlabel
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$info $title );
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# Change these to reflect your LDAP ACL. The given DN must have
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# read access to the Monitor branch.
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my $basedn = "cn=Monitor";
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my $server = "localhost";
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my $userdn = ($ENV{'binddn'} || '');
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my $userpw = ($ENV{'bindpw'} || '');
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# Remember: bytes, pdu needs scope=base
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# The possible measurements
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my %ops =
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('statistics_bytes'
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=> {
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'search' => "cn=Bytes,cn=Statistics",
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'desc' => "The number of bytes sent by the LDAP server.",
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'vlabel' => "Bytes",
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'title' => "Number of bytes sent",
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'info' => "The graph shows the number of bytes sent",
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'scope' => "base"
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},
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'statistics_pdu'
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=> {
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'search' => "cn=PDU,cn=Statistics",
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'desc' => "The number of PDUs sent by the LDAP server.",
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'vlabel' => "PDUs",
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'title' => "Number of PDUs sent",
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'info' => "The graph shows the number of PDUs sent",
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'scope' => "base"
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},
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# Referrals
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'statistics_referrals'
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=> {
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'search' => "cn=Referrals,cn=Statistics",
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'attrs' => "Referrals",
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'desc' => "The number of Referrals sent by the LDAP server.",
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'vlabel' => "Referrals",
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'title' => "Number of LDAP Referrals",
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'info' => "The graph shows the number of referrals sent",
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'scope' => "base"
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},
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# Entries
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'statistics_entries'
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=> {
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'search' => "cn=Entries,cn=Statistics",
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'attrs' => "Entries",
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'desc' => "The number of Entries sent by the LDAP server.",
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'vlabel' => "Entries",
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'title' => "Number of LDAP Entries",
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'info' => "The graph shows the number of entries sent",
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'scope' => "base"
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},
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# Only read Current and Total
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'connections'
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=> {
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'search' => 'cn=Connections',
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'filter' => '(|(cn=Current)(cn=Total))',
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'desc' => 'The number of Connections',
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'label' => {'current' => 'Current',
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'total' => 'Total'},
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'vlabel' => 'Connections',
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'title' => 'Number of Connections',
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'info' => 'Number of connections to the LDAP server'
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},
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# dn: cn=Write,cn=Waiters,cn=Monitor
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# dn: cn=Read,cn=Waiters,cn=Monitor
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'waiters'
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=> {
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'search' => 'cn=Waiters',
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'filter' => '(|(cn=Write)(cn=Read))',
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'desc' => "The number of Waiters|",
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'label' => {'write' => 'Write',
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'read' => 'Read'},
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'vlabel' => "Waiters",
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'title' => "Number of Waiters",
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'info' => "The graph shows the number of Waiters"
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},
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'operations'
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=> {
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'search' => "cn=Operations",
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'desc' => "Operations",
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'vlabel' => "Operations",
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'title' => "Operations",
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'info' => "Number of completed LDAP operations"
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},
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'operations_diff'
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=> {
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'search' => "cn=Operations",
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'desc' => "Operations deviance",
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'vlabel' => "Deviance",
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'title' => "Operations deviance",
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'info' => "Deviance between Initiated and Completed ops"
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}
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);
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# Config subroutine
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sub config {
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my $action = shift;
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print <<EOF;
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graph_args --base 1000 -l 0 --vertical-label $ops{$action}->{'vlabel'}
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graph_title $ops{$action}->{'title'}
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graph_category OpenLDAP
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graph_info $ops{$action}->{'info'}
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EOF
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if ($ops{$action}->{'label'}) {
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while (my ($key, $val) = each (%{$ops{$action}->{'label'}})) {
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my $name = $action . "_" . $key;
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print "$name.label $val\n";
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print "$name.type DERIVE\n";
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print "$name.min 0\n";
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}
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} elsif ($action =~ /^operations(?:_diff)?$/) {
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my $ldap = Net::LDAP->new ($server) or die "$@";
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$ldap->bind ($userdn, password => $userpw) or die "$@";
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my $searchdn = $ops{$action}->{'search'} . "," . $basedn;
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my $mesg =
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$ldap->search (
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base => $searchdn,
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scope => 'one',
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filter => '(objectclass=*)',
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attrs => ['monitorOpInitiated',
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'monitorOpCompleted',
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'cn'],
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);
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$mesg->code && die $mesg->error;
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my $max = $mesg->count;
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for (my $i = 0 ; $i < $max ; $i++) {
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my $entry = $mesg->entry ($i);
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my $cn = $entry->get_value ('cn');
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$name = $action . "_" . lc ($cn);
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print "$name.label $cn\n";
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print "$name.type DERIVE\n";
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print "$name.min 0\n";
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if ($action eq "operations") {
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print "$name.info The number of $cn operations\n";
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} else {
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print "$name.info The difference between Initiated ";
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print "and Completed operations (should be 0)\n";
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print "$name.warning 1\n";
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}
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}
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} else {
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print "$action.label $ops{$action}->{'vlabel'}\n";
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print "$action.type DERIVE\n";
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print "$action.min 0\n";
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}
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}
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if ($ARGV[0]) {
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if ($ARGV[0] eq 'autoconf') {
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# Check for Net::LDAP
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if (! eval "require Net::LDAP;") {
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print "no (Net::LDAP not found)";
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exit 1;
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}
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# Check for LDAP version 3
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my $ldap = Net::LDAP->new ($server, version => 3)
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or die "no (Needs LDAPv3)";
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$ldap->bind ($userdn, password => $userpw)
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or die ("no (Can't log in, check env file)");
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} elsif ($ARGV[0] eq "config") {
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if ($0 =~ /slapd_([\w\d_]+)$/) {
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my $action = $1;
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&config ($1);
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} else {
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die ("Can't run config without a symlinked name\n");
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}
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} elsif ($ARGV[0] eq "suggest") {
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print join ("\n", keys (%ops)), "\n";
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}
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exit 0;
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}
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# We won't run this without parameters.
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die ("Can't run without a symlinked name\n") if $0 =~ /slapd_$/;
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# Default scope for LDAP searches. We'll change to other scopes if
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# necessary.
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$scope = "one";
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# The filename is teh key
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(my $action = $0) =~ s/^.*slapd_([\w\d_]+)$/$1/;
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# Net::LDAP variant
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my $ldap = Net::LDAP->new ($server, version => 3)
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or die "$@";
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$ldap->bind ($userdn,password => $userpw)
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or die "$@";
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my $searchdn = $ops{$action}->{'search'} . "," . $basedn;
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my $searchattrs;
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if ($action =~ /^operations(_diff)?$/) {
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# We look for different parameters in Operations branch
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$searchattrs = ['monitorOpInitiated', 'monitorOpCompleted', 'cn'];
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} else {
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$searchattrs = ['monitorCounter', 'cn'];
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}
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my $filter;
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if ($ops{$action}->{'filter'}) {
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$filter = "(&(objectclass=*)" . $ops{$action}->{'filter'} . ")";
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} else {
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$filter = "(objectClass=*)";
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}
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if ($ops{$action}->{'scope'}) {
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$scope = $ops{$action}->{'scope'};
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}
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my $mesg =
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$ldap->search (
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base => $searchdn,
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scope => $scope,
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filter => $filter,
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attrs => $searchattrs,
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);
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$mesg->code && die $mesg->error;
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my $max = $mesg->count;
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for (my $i = 0 ; $i < $max ; $i++) {
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my $entry = $mesg->entry ($i);
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my $cn = $entry->get_value('cn');
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if ($action =~ /operations(_diff)?$/) {
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if ($1) {
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my $opsInit =
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$entry->get_value('monitorOpInitiated');
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my $opsComp =
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$entry->get_value('monitorOpCompleted');
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print lc ("operations_diff_${cn}.value ");
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print ($opsInit - $opsComp);
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print "\n";
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} else {
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print lc ("operations_${cn}.value ");
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print $entry->get_value('monitorOpCompleted'),
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"\n";
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}
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} else {
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# Hotfix, must do for now
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if ($action =~ /_/) {
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print lc ("${action}.value ");
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} else {
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print lc ("${action}_${cn}.value ");
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}
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print $entry->get_value('monitorCounter'), "\n";
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}
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}
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$ldap->unbind;
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