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Create dovecot, plugin to monitor dovecot connections

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Based very heavily on exim_mailrejects
This commit is contained in:
Mrten 2013-06-04 00:28:33 +03:00
parent 4a7a0de134
commit 6f0a884e19
1 changed files with 253 additions and 0 deletions
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#!/usr/bin/perl
#%# family=auto
#%# capabilities=autoconf
$statefile = "/var/lib/munin-node/plugin-state/root/plugin-dovecot.state";
$pos = undef;
$connected = 0;
$connectedimap = 0;
$connectedpop3 = 0;
$connections = 0;
$connectionsimap = 0;
$connectionspop3 = 0;
$login = 0;
$pop3login = 0;
$imaplogin = 0;
$tls = 0;
$ssl = 0;
$aborted = 0;
($dirname = $0) =~ s/[^\/]+$//;
$logfile = $ENV{'LOGFILE'} || '/var/log/mail.log';
$DOVEADM = "/usr/bin/doveadm";
if ( $ARGV[0] and $ARGV[0] eq "autoconf" ) {
if (! -x $DOVEADM) {
print "no (no doveadm)\n";
exit(1);
}
if (! -f $logfile) {
print "no (logfile $logfile does not exist)\n";
exit(1);
}
if (-r "$logfile") {
print "yes\n";
exit 0;
} else {
print "no (logfile not readable)\n";
}
exit 1;
}
if (-f "$logfile.0") {
$rotlogfile = $logfile . ".0";
} elsif (-f "$logfile.1") {
$rotlogfile = $logfile . ".1";
} elsif (-f "$logfile.01") {
$rotlogfile = $logfile . ".01";
} else {
$rotlogfile = $logfile . ".0";
}
if ( $ARGV[0] and $ARGV[0] eq "config" ) {
print "multigraph dovecot_connections\n";
print "graph_title Dovecot connections\n";
print "graph_args --base 1000 -l 0 --no-gridfit --slope-mode\n";
print "graph_vlabel connections\n";
print "graph_category dovecot\n";
print "connections.label Connections open\n";
print "connections.type GAUGE\n";
print "connections.draw LINE1\n";
print "connections.min 0\n";
print "connectionsimap.label IMAP\n";
print "connectionsimap.type GAUGE\n";
print "connectionsimap.draw AREA\n";
print "connectionsimap.min 0\n";
print "connectionspop3.label POP3\n";
print "connectionspop3.type GAUGE\n";
print "connectionspop3.draw STACK\n";
print "connectionspop3.min 0\n";
print "multigraph dovecot_connected\n";
print "graph_title Dovecot connected users\n";
print "graph_args --base 1000 -l 0 --no-gridfit --slope-mode\n";
print "graph_vlabel connections\n";
print "graph_category dovecot\n";
print "connected.label Connected users\n";
print "connected.type GAUGE\n";
print "connected.draw LINE1\n";
print "connected.min 0\n";
print "connectedimap.label IMAP\n";
print "connectedimap.type GAUGE\n";
print "connectedimap.draw AREA\n";
print "connectedimap.min 0\n";
print "connectedpop3.label POP3\n";
print "connectedpop3.type GAUGE\n";
print "connectedpop3.draw STACK\n";
print "connectedpop3.min 0\n";
print "multigraph dovecot_logins\n";
print "graph_title Dovecot logins\n";
print "graph_args --base 1000 -l 0 --no-gridfit --slope-mode\n";
print "graph_vlabel logins/5 minute\n";
print "graph_category dovecot\n";
print "login.label Logins\n";
print "login.type GAUGE\n";
print "login.draw LINE1\n";
print "login.min 0\n";
print "imaplogin.label IMAP logins\n";
print "imaplogin.type GAUGE\n";
print "imaplogin.draw LINE1\n";
print "imaplogin.min 0\n";
print "pop3login.label POP3 logins\n";
print "pop3login.type GAUGE\n";
print "pop3login.draw LINE1\n";
print "pop3login.min 0\n";
print "tls.label TLS\n";
print "tls.type GAUGE\n";
print "tls.draw LINE1\n";
print "tls.min 0\n";
print "ssl.label SSL\n";
print "ssl.type GAUGE\n";
print "ssl.draw LINE1\n";
print "ssl.min 0\n";
print "aborted.label Aborted logins\n";
print "aborted.type GAUGE\n";
print "aborted.draw LINE1\n";
print "aborted.min 0\n";
exit 0;
}
if (! -f $logfile and ! -f $rotlogfile) {
print "multigraph dovecot_connections\n";
print "connections.value U";
print "connectionsimap.value U";
print "connectionspop3.value U";
print "multigraph dovecot_connected\n";
print "connected.value U\n";
print "connectedimap.value U\n";
print "connectedpop3.value U\n";
print "multigraph dovecot_logins\n";
print "login.value U\n";
print "pop3login.value U\n";
print "imaplogin.value U\n";
print "tls.value U\n";
print "ssl.value U\n";
print "aborted.value U\n";
exit 0;
}
# dit kan beter maar twee calls zijn toch nodig als we niet zelf aggegreren
# suggestie: doveadm who -1 | awk '{print $1" "$2" "$4}' | sort | uniq -c
$connectedimap = `$DOVEADM -f flow who | grep imap | wc -l`;
$connectedpop3 = `$DOVEADM -f flow who | grep pop3 | wc -l`;
$connectionsimap = `$DOVEADM -f flow who -1 | grep imap | wc -l`;
$connectionspop3 = `$DOVEADM -f flow who -1 | grep pop3 | wc -l`;
#trim
$connectedimap =~ s/\s+$//;
$connectedpop3 =~ s/\s+$//;
$connectionsimap =~ s/\s+$//;
$connectionspop3 =~ s/\s+$//;
$connected = $connectedimap + $connectedpop3;
$connections = $connectionsimap + $connectionspop3;
if (-f "$statefile") {
if (!open (IN, "$statefile")) {
print "Cannot open statefile $statefile for reading: $!\n";
exit 4;
}
my $in = <IN>;
if ($in =~ /^(\d+)$/) {
($pos) = ($1);
}
close IN;
}
$startsize = (stat $logfile)[7];
if (!defined $pos) {
# Initial run.
$pos = $startsize;
}
if ($startsize < $pos) {
# Log rotated
parseDovecotfile ($rotlogfile, $pos, (stat $rotlogfile)[7]);
$pos = 0;
}
parseDovecotfile ($logfile, $pos, $startsize);
$pos = $startsize;
if (-l $statefile) {
die("$statefile is a symbolic link, refusing to touch it.");
}
if (!open (OUT, ">$statefile")) {
print "Cannot open statefile $statefile for writing: $!\n";
exit 4;
}
print OUT "$pos\n";
close OUT;
print "multigraph dovecot_connections\n";
print "connections.value $connections\n";
print "connectionsimap.value $connectionsimap\n";
print "connectionspop3.value $connectionspop3\n";
print "multigraph dovecot_connected\n";
print "connected.value $connected\n";
print "connectedimap.value $connectedimap\n";
print "connectedpop3.value $connectedpop3\n";
print "multigraph dovecot_logins\n";
print "login.value $login\n";
print "pop3login.value $pop3login\n";
print "imaplogin.value $imaplogin\n";
print "tls.value $tls\n";
print "ssl.value $ssl\n";
print "aborted.value $aborted\n";
sub parseDovecotfile {
my ($fname, $start, $stop) = @_;
open (logf, $fname) or exit 3;
seek (logf, $start, 0) or exit 2;
while (tell (logf) < $stop) {
my $line =<logf>;
chomp ($line);
if ($line !~ m/dovecot/) { next; }
if ($line =~ m/Aborted/) {
$aborted++;
} elsif ($line =~ m/Login:/) {
$login++;
if ( $line =~ m/TLS/) {
$tls++;
} elsif ($line =~ m/SSL/) {
$ssl++;
}
if ( $line =~ m/pop3-login:/) {
$pop3login++;
} elsif ($line =~ m/imap-login:/) {
$imaplogin++;
}
}
}
close(logf);
}
# vim:syntax=perl