Nagios Plugins
- Macros
- Commands
- Services
- Hosts
- Hostgroups!
- Examples
- Plugin API
- NRPE
Why?
Alerting
Community
Simplicity
Robust
Modular
How?
Macros
(Variables)
- User defined
- Host address
- Arguments
Order of Operations
- Execute command
- Run check
- Report result
Commands
define command {
command_name check_mongodb
command_line $USER1$/check_mongodb.py -H $HOSTADDRESS$ -A $ARG1$ -W $ARG2$ -C $ARG3$
}Hosts
define host {
use linux-server
host_name prd-om-db11.eth1
alias prd-om-db11
hostgroups mongo_hosts, prd_om_cluster
}Hostgroups
define hostgroup {
hostgroup_name mongo_hosts
alias Mongo Hosts
}
define hostgroup {
hostgroup_name prd_om_cluster
alias Production OM Cluster
}define hostgroup {
hostgroup_name all_hosts
alias All OrderGroove Hosts
hostgroup_members apache_hosts,mysql_hosts,mongo_hosts,redis_hosts
}Services
define service {
use generic-service
hostgroup_name mongo_hosts
service_description Mongo Free Connections
check_command check_mongodb!connections!70!80
}
define service {
use generic-service
hostgroup_name prd_om_cluster
service_description Check cloud_log Collection State
check_command check_mongodb_collection!collection_state!mongog!cloud_log
}
Examples
- check_tcp
- check_http
- check_snmp
- check_mysql_health
- check_mongodb.py
- check_redis.pl
- check_mariadb_slave.py
Plugin API
- 0 = OK
- 1 = WARNING
- 2 = CRITICAL
- 3 = UNKNOWN
NRPE
Remote execution is cool but...
There's more...
- Scheduling
- Alerting
- "Perfdata"
References
https://www.nagios.org/documentation
http://nagios.sourceforge.net/docs/3_0/pluginapi.html
Nagios Plugins
By Juan
Nagios Plugins
What is the foundation they are built on? How can we build a plugin?
