Nagios Active Checks (check_ncpa.py)
Nagios plugin:
https://assets.nagios.com/downloads/ncpa/check_ncpa.tar.gz
Copy check_ncpa.py to /usr/local/nagios/libexec (plugin directory) or /usr/lib64/nagios/plugins/ (plugin directory Centos 6.9)
ln -s check_ncpa.py check_ncpa
Define new check_ncpa command by adding following lines to /usr/local/nagios/etc/objects/commands.cfg
define command {
command_name check_ncpa
command_line $USER1$/check_ncpa.py -H $HOSTADDRESS$ $ARG1$
}
or
define command {
command_name check_ncpa
command_line $USER1$/check_ncpa -H $HOSTADDRESS$ $ARG1$
}
Create ncpa.cfg file in /usr/local/nagios/etc/objects
touch /usr/local/nagios/etc/objects/ncpa.cfg
Add following lines in ncpa.cfg to define host and monitoring services
define host {
host_name NCPA 2 Host
address 192.168.1.10
check_command check_ncpa!-t 'mytoken' -P 5693 -M system/agent_version
max_check_attempts 5
check_interval 5
retry_interval 1
check_period 24×7
contacts nagiosadmin
notification_interval 60
notification_period 24×7
notifications_enabled 1
icon_image ncpa.png
statusmap_image ncpa.png
register 1
}
define service {
host_name NCPA 2 Host
service_description CPU Usage
check_command check_ncpa!-t 'mytoken' -P 5693 -M cpu/percent -w 20 -c 40 -q 'aggregate=avg'
max_check_attempts 5
check_interval 5
retry_interval 1
check_period 24×7
notification_interval 60
notification_period 24×7
contacts nagiosadmin
register 1
}
define service {
host_name NCPA 2 Host
service_description Memory Usage
check_command check_ncpa!-t 'mytoken' -P 5693 -M memory/virtual -w 50 -c 80 -u G
max_check_attempts 5
check_interval 5
retry_interval 1
check_period 24×7
notification_interval 60
notification_period 24×7
contacts nagiosadmin
register 1
}
define service {
host_name NCPA 2 Host
service_description Process Count
check_command check_ncpa!-t 'mytoken' -P 5693 -M processes -w 150 -c 200
max_check_attempts 5
check_interval 5
retry_interval 1
check_period 24×7
notification_interval 60
notification_period 24×7
contacts nagiosadmin
register 1
}
And finaly, tell Nagios to add monitoring from new configuration file by adding new cfg_file line to nagios.cfg file.
Change icon_image and statusmap_image in ncpa.cfg file by choosing some png files from
/usr/local/nagios/share/images folder.
For example, instead ncpa.png (in ncpa.cfg) choose workstation.png
More info: https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/monitoring-windows.html
Credits: https://milanorlovic.blogspot.pt/2017/09/nagios-active-checks-checkncpapy.html