Add sensors checks, discovery and conf

conf/sensors.conf

@@ -0,0 +1,24 @@
+# You can configure here the sensors
+# Format is <sensors_name>=<command>!<high threshold>!<low threshold>
+# An alert is triggerd if the temperature is above the high threshold
+# The alert is cleared if the temperature is less than low threshold
+# Example:
+#
+#
+## Examples with ipmitool
+# cpu0 = /usr/bin/ipmitool sdr get 'P1 Therm Margin' | grep 'Sensor Reading' | cut -d':' -f 2 | awk '{print$1}'!-30!-39
+# mb = /usr/bin/ipmitool sdr get 'Baseboard Temp' | grep 'Sensor Reading' | cut -d':' -f 2 | awk '{print$1}'!50!45
+#
+## Examples with smartctl
+# sda = /usr/sbin/smartctl -a /dev/sda | grep Temperature_Celsius | awk '{print $10}'!45!40
+# sdb = /usr/sbin/smartctl -a /dev/sdb | grep Temperature_Celsius | awk '{print $10}'!45!50
+#
+## Examples with lm_sensors
+# cpu0=/usr/bin/sensors | grep temp1 | cut -d':' -f 2 | awk '{print $1'} | sed -e "s/+//g" -e "s/.C//g"!65!55
+#
+## Examples with acpi
+# cpu0=cat /proc/acpi/thermal_zone/THRM/temperature | awk '{print $2}'!65!55
+#
+#
+# !!! WARNING !!!
+# All the commands will be executed with root privileges

zabbix-agent-addons.spec

@@ -39,6 +39,8 @@ LVM, RAID status, S.M.A.R.T. drives, BackupPC etc...
 # Install Zabbix conf
 %{__install} -d $RPM_BUILD_ROOT%{_sysconfdir}/zabbix/zabbix_agentd.conf.d/
 %{__install} -m 0755 zabbix_conf/* $RPM_BUILD_ROOT%{_sysconfdir}/zabbix/zabbix_agentd.conf.d/
+# Install sensors conf
+%{__install} -m 0755 conf/sensors.conf $RPM_BUILD_ROOT%{_sysconfdir}/zabbix/
 # Install sudo conf
 %{__install} -d 750 $RPM_BUILD_ROOT%{_sysconfdir}/sudoers.d
 %{__install} -m 600 conf/sudo.conf $RPM_BUILD_ROOT%{_sysconfdir}/sudoers.d/zabbix_agent
@@ -57,6 +59,7 @@ LVM, RAID status, S.M.A.R.T. drives, BackupPC etc...
 %doc README CHANGELOG.git
 %dir %attr(0750,zabbix,zabbix) %{_localstatedir}/lib/zabbix/bin
 %{_localstatedir}/lib/zabbix/bin/*
+%config(noreplace) %attr(0644,root,root) %{_sysconfdir}/zabbix/sensors.conf
 %{_sysconfdir}/zabbix/zabbix_agentd.conf.d/*
 %{_sysconfdir}/sudoers.d/*
 

zabbix_conf/sensors.conf

@@ -0,0 +1,6 @@
+# Sensors discovery
+# See /etc/zabbix/sensors.conf
+UserParameter=hardware.sensor.discovery,/var/lib/zabbix/bin/disco_sensors
+
+# Sensors
+UserParameter=hardware.sensor[*],/usr/bin/sudo /var/lib/zabbix/bin/check_sensors $1

zabbix_scripts/check_sensors_sudo

@@ -0,0 +1,25 @@
+#!/usr/bin/perl -w
+
+my $what = $ARGV[0];
+
+unless (defined $what){
+    print <<"EOF";
+
+Usage: $0 sensor_name
+
+EOF 
+    exit(1);
+}
+
+open SENSORS, ('</etc/zabbix/sensors.conf') ||
+    die "Couldn't open /etc/zabbix/sensors.conf: $!\n";
+
+my $ret = 'ZBX_NOTSUPPORTED';
+
+foreach (<SENSORS>){
+    next unless (/^$what(\s+)?=(\s+)?(.*)!(\-?\d+)!(\-?\d+)$/);
+    my $cmd = $3;
+    $ret = `$cmd`;
+}
+print $ret;
+exit(0);

zabbix_scripts/disco_sensors

@@ -0,0 +1,21 @@
+#!/usr/bin/perl -w
+
+use JSON;
+my $json;
+
+open SENSORS, ('</etc/zabbix/sensors.conf') ||
+    die "Couldn't open /etc/zabbix/sensors.conf: $!\n";
+
+
+foreach (<SENSORS>){
+    next unless (/^(\w+)(\s+)?=(\s+)?(.*)!(\-?\d+)!(\-?\d+)$/);
+    my ($sensor,$threshigh,$threslow) = ($1,$5,$6);
+    push @{$json->{data}}, {
+        "{#SENSORNAME}" => $sensor,
+        "{#SENSORTHRESHIGH}" => $threshigh,
+        "{#SENSORTHRESLOW}" => $threslow
+    };
+}
+close SENSORS;
+print to_json($json, { pretty => 1 });
+exit(0);