Install perl libs

yum install perl-JSON.noarch perl-Nagios-Plugin.noarch

copy file d42.cfg to Nagios configuration path (e.g: /etc/nagios/servers/)

file d42.cfg include common d 42 health command, services and host defined for Nagios configuration

copy file check_d42_health to Nagios library directory (e.g: /usr/lib64/nagios/plugins/)

set permission with command chmod +x check_d42_health

uncomment next line in nagios.cfg file

cfg_dir=/etc/nagios/servers

perl <check_d42_health path> -H <hostname> -P <port number> -I <metric name> -c <critical threshold> -w <warn threshold> --ssl --cache=<cache expired seconds>

perl check_d42_health -H svnow01.device42.com -P 4242 -I cpu_used_percent -w 10 -c 20 --cache=60

for SSL hosts

perl check_d42_health -H 158.69.157.1 -P 4343 --ssl -I cpu_used_percent -w 10 -c 20 --cache=60

• -H - Hostname
• -P - Port number
• -I - Metric name
• -c - Critical threshold
• -w - Warning threshold
• -S - Enable SSL (use HTTPS protocol)
• -C - Enable cache and set cache expire time duration in seconds. Default 60

• cpu_used_percent
• dbsize
• disk_used_percent
• memtotal
• cached
• swapfree
• swaptotal
• memfree
• buffers

• UNKNOWN - Item is not defined - no item found in server respose
• UNKNOWN - Can not parse JSON received from server
• UNKNOWN - No data received from server
• CRITICAL - script execution time out
• UNKNOWN - no data for item
• UNKNOWN - item backup_status is empty, skip processing
• NORMAL - all job successfully finished
• CRITICAL - backup job ran with errors

Example of D42 Health Checks imported to Nagios