Nagios inheritance patters

cfg---hosts---_groups---class-servers.cfg

define hostgroup{
    hostgroup_name                  servers
    alias                           Class - Servers
}

cfg---hosts---_groups---role-mysqls.cfg

define hostgroup{
    hostgroup_name                  mysqls
    alias                           Role - MySQL
}

cfg---hosts---_templates---classes---server.cfg

define host {
    name                            class-server
    register                        0
    hostgroups                      +servers
    _CLASS                          server
}

cfg---hosts---_templates---environments---prod.rws-asset.cfg

define host {
    name                            prod.rws-asset
    use                             rws-asset
    notification_period             24x7
    register                        0
    _ENV                            prod.rws
}

cfg---hosts---_templates---environments---rws-asset.cfg

define host {
    name                            rws-asset
    use                             generic-asset-reachable
    notification_period             24x7
    register                        0
    _ENV                            rws
}

cfg---hosts---_templates---roles---mysql.cfg

define host {
    name                            role-mysql
    register                        0
    hostgroups                      +mysqls
    _ROLE                           mysql
}

cfg---hosts---prod-server-hulk.cfg

define host {
    use                 prod.rws-asset,class-server,role-mysql
    host_name           prod-server-hulk
    alias               Hulk
    parents             dca1-switch-sw001
    address             hulk.dca1.rws
    _VENDOR             Dell
    _MODEL              PowerEdge R510
    _SERIAL             xxxxxx
}

cfg---services---_templates---critical-service.cfg

define service {
    name                            critical-service
    use                             generic-service
    contact_groups                  +sysadmins-mobile,irc
    register                        0
}

cfg---services---sysctl_numvnodes.cfg

define service{
    use                                                 critical-service
    service_description                                 vfs.numvnodes
    hostgroup_name                                      servers
    display_name                                        Current vnodes
    check_command                                       check_snmp_extend!sysctl_numvnodes
}