Centreon-plugins is a free and open source project to monitor systems. In his talk Quentin Garnier will present a short description of the project. Starting with basic examples he will then come to advanced usages like openmetrics output, password manager and many more.

1. Centreon Plugins 2019
Advanced

2. 2
Project Overview
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Collection of plugins
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Birth: September 2013 (6 years)
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Open Source: Apache2
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Can monitor: snmp/modbus/http/sql/jmx/…
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Compatible: centreon/icinga/nagios/...
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https://github.com/centreon/centreon-plugins

3. 3
More than 400 plugins and 1900 modes

4. 4
Basic principle and usage
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One script program for all plugins: centreon_plugins.pl
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Choose your plugin: --list-plugin
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Choose your mode: --list-mode
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Always use the --help option
$ centreon_plugins.pl --plugin=os/linux/snmp/plugin.pm --mode=cpu --hostname=127.0.0.1
OK: 4 CPU(s) average usage is 5.25 % | 'total_cpu_avg'=5.25%;;;0;100 'cpu_0'=5.00%;;;0;100 'cpu_1'=7.00%;;;0;100
'cpu_2'=5.00%;;;0;100 'cpu_3'=4.00%;;;0;100

5. 5
New metrics format
'user'=3.27%;;;0;100
'cpu.user.utilization.percentage'=3.27%;;;0;100
'used_/'=55784792064B;;;0;250438021120
'/#storage.space.usage.bytes'=55784804352B;;;0;250438021120

6. 6
OpenMetrics output
$ centreon_plugins.pl --plugin=os/linux/snmp/plugin.pm --mode=storage --hostname=127.0.0.1 --output-openmetrics
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="250438021120",instance="/"}
55784955904 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="824799232",instance="/run"}
1585152 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="4123992064",instance="/dev/
shm"} 57122816 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="5242880",instance="/run/
lock"} 4096 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="4123992064",instance="/sys/
fs/cgroup"} 0 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="535805952",instance="/boot/
efi"} 7974912 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="824795136",instance="/run/
user/1000"} 65536 1572512965820
storage.space.usage.bytes{plugin="os/linux/snmp/plugin.pm",mode="storage",unit="B",min="0",max="824799232",instance="/run/
snapd/ns"} 1585152 1572512965820
plugin.mode.status{plugin="os/linux/snmp/plugin.pm",mode="storage"} 0 1572512965820

7. 7
Multiple modes execution
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Meta mode for all plugins
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Can execute X modes at once
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Cannot execute modes from different plugins
$ centreon_plugins.pl --plugin=os/linux/snmp/plugin.pm --mode=multi --hostname=127.0.0.1 --modes-exec=cpu,memory
OK: 4 CPU(s) average usage is 3.00 % - Ram Total: 7.68 GB Used (-buffers/cache): 2.46 GB (32.08%) Free: 5.22 GB (67.92%),
Buffer: 369.95 MB, Cached: 2.09 GB, Shared: 257.97 MB | 'cpu.utilization.percentage'=3.00%;;;0;100
'0#core.cpu.utilization.percentage'=3.00%;;;0;100 '1#core.cpu.utilization.percentage'=3.00%;;;0;100
'2#core.cpu.utilization.percentage'=3.00%;;;0;100 '3#core.cpu.utilization.percentage'=3.00%;;;0;100
'memory.usage.bytes'=2645962752B;;;0;8247984128 'memory.free.bytes'=5602021376B;;;0;8247984128
'memory.usage.percentage'=32.08%;;;0;100 'memory.buffer.bytes'=387915776B;;;0; 'memory.cached.bytes'=2246725632B;;;0;
'memory.shared.bytes'=270503936B;;;0;

8. 8
Password manager
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Can mask sensitive datas on command line
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One local and one distant password manager compatibility

9. 9
And more...
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Powerful options to change/extend perfdata
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memchaded/redis backend for statefile
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New curl backend for http plugins
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Find it more with --help option!