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Using external commands in Nagios
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Nagios::StatusLog(3pm) User Contributed Perl Documentation Nagios::StatusLog(3pm) NAME
Nagios::StatusLog, Nagios::(Service|Host|Program)::Status - Perl objects to represent the Nagios status file DESCRIPTION
Reads the Nagios status log and returns ::Status objects that can be used to get status information about a host. For Nagios version 2.x logs, pass in the Version => 2.0 parameter to new(). And similarly, pass in the Version => 3.0 parameter to new() for Nagios version 3.x logs. my $log = Nagios::StatusLog->new( Filename => "/var/opt/nagios/status.log", Version => 1.0 ); $localhost = $log->host( "localhost" ); print "status of localhost is now ",$localhost->status()," "; $log->update(); print "status of localhost is now ",$localhost->status()," "; # for Nagios v2.0 my $log = Nagios::StatusLog->new( Filename => "/var/cache/nagios2/status.dat", Version => 2.0 ); # for Nagios v3.0 my $log = Nagios::StatusLog->new( Filename => "/var/cache/nagios3/status.dat", Version => 3.0 ); METHODS
new() Create a new Nagios::StatusLog instance. The object will be initialized for you (using $self->update()). Nagios::StatusLog->new( "/var/opt/nagios/status.log" ); update() Updates the internal data structures from the logfile. $log->update(); service() Returns a Nagios::Service::Status object. Input arguments can be a host_name and description list, or a Nagios::Service object. my $svc_stat = $log->service( "localhost", "SSH" ); my $svc_stat = $log->service( $localhost_ssh_svc_object ); Nagios::Service::Status has the following accessor methods (For V1): host_name description status current_attempt state_type last_check next_check check_type checks_enabled accept_passive_service_checks event_handler_enabled last_state_change problem_has_been_acknowledged last_hard_state time_ok current_notification_number time_warning time_critical process_performance_data notifications_enabled latency scheduled_downtime_depth is_flapping plugin_output percent_state_change execution_time time_unknown failure_prediction_enabled last_notification obsess_over_service flap_detection_enabled list_services() Returns an array of all service descriptions in the status log. Services that may be listed on more than one host are only listed once here. my @all_services = $log->list_services; list_services_on_host() Returns an array of services descriptions for a given host. my @host_services = $log->list_services_on_host($hostname); my @host_services = $log->list_services_on_host($nagios_object); host() Returns a Nagios::Host::Status object. Input can be a simple host_name, a Nagios::Host object, or a Nagios::Service object. my $hst_stat = $log->host( 'localhost' ); my $hst_stat = $log->host( $host_object ); my $hst_stat = $log->host( $svc_object ); Nagios::Host::Status has the following accessor methods (for V1): host_name status last_check last_state_change problem_has_been_acknowledged time_up time_down time_unreachable last_notification current_notification_number notifications_enabled event_handler_enabled checks_enabled flap_detection_enabled is_flapping percent_state_change scheduled_downtime_depth failure_prediction_enabled process_performance_data plugin_output list_hosts() Returns a simple array of host names (no objects). my @hosts = $log->list_hosts; info() [Nagios v2 & v3 logs only] Returns a Nagios::Info::Status object. It only has two methods, created() and version(). my $i = $log->info; printf "Logfile created at %s unix epoch time for Nagios verion %s ", $i->created, $i->version; contact() [Nagios v3 logs only] Returns a Nagios::Contact::Status object. Input can be a simple contact_name, or a Nagios::Contact object. my $c = $log->contact( 'john' ); my $c = $log->contact( $contact_object ); Nagios::Contact::Status has the following accessor methods (for v3): contact_name modified_attributes modified_host_attributes modified_service_attributes host_notification_period service_notification_period last_host_notification last_service_notification host_notifications_enabled service_notifications_enabled hostcomment() [Nagios v3 logs only] Returns a Nagios::Hostcomment::Status object. Input can be a simple host_name, or a Nagios::Host or Nagios::Service object. my $c = $log->hostcomment( 'localhost' ); my $c = $log->hostcomment( $localhost_object ); my $c = $log->hostcomment( $localhost_service_object ); foreach my $id (sort keys %$c) { printf "Host %s has a comment[$id] made by %s on %s: %s", $c->{$id}->host_name, $c->{$id}->author, scalar localtime $c->{$id}->entry_time, $c->{$id}->comment_data; } Nagios::Hostcomment::Status is a perl HASH, keyed with the Nagios comment IDs, where each ID has the following accessor methods (for v3): host_name entry_type comment_id source persistent entry_time expires expire_time author comment_data servicecomment() [Nagios v3 logs only] Returns a Nagios::Servicecomment::Status object. Input can be a simple host_name or Nagios::Host object with a service description or Nagios::Service object, or just a Nagios::Service object by itself. my $c = $log->servicecomment( 'localhost', 'SSH' ); my $c = $log->servicecomment( $localhost_object, $localhost_ssh_svc_object ); my $c = $log->servicecomment( $localhost_ssh_svc_object ); foreach my $id (sort keys %$c) { printf "Service %s on %s has a comment[$id] made by %s on %s: %s", $c->{$id}->service_description, $c->{$id}->host_name, $c->{$id}->author, scalar localtime $c->{$id}->entry_time, $c->{$id}->comment_data; } Nagios::Servicecomment::Status is a perl HASH, keyed with the Nagios comment IDs, where each ID has the following accessor methods (for v3): host_name service_description entry_type comment_id source persistent entry_time expires expire_time author comment_data hostdowntime() [Nagios v3 logs only] Returns a Nagios::Hostdowntime::Status object. Input can be a simple host_name, or a Nagios::Host or Nagios::Service object. my $d = $log->hostdowntime( 'localhost' ); my $d = $log->hostdowntime( $localhost_object ); my $d = $log->hostdowntime( $localhost_service_object ); foreach my $id (sort keys %$d) { printf "Host %s has scheduled downtime[$id] made by %s on %s for %.1f hours [%s - %s]: %s", $d->{$id}->host_name, $d->{$id}->author, scalar localtime $d->{$id}->entry_time, ($d->{$id}->duration)/3600.0, scalar localtime $d->{$id}->start_time, scalar localtime $d->{$id}->end_time, $d->{$id}->comment; } Nagios::Hostdowntime::Status is a perl HASH, keyed with the Nagios downtime IDs, where each ID has the following accessor methods (for v3): host_name downtime_id entry_time start_time end_time triggered_by fixed duration author comment servicedowntime() [Nagios v3 logs only] Returns a Nagios::Servicedowntime::Status object. Input can be a simple host_name or Nagios::Host object with a service description or Nagios::Service object, or just a Nagios::Service object by itself. my $c = $log->servicedowntime( 'localhost', 'SSH' ); my $c = $log->servicedowntime( $localhost_object, $localhost_ssh_svc_object ); my $c = $log->servicedowntime( $localhost_ssh_svc_object ); foreach my $id (sort keys %$d) { printf "Service %s on %s has scheduled downtime[$id] made by %s on %s for %.1f hours [%s - %s]: %s", $d->{$id}->service_description, $d->{$id}->host_name, $d->{$id}->author, scalar localtime $d->{$id}->entry_time, ($d->{$id}->duration)/3600.0, scalar localtime $d->{$id}->start_time, scalar localtime $d->{$id}->end_time, $d->{$id}->comment; } Nagios::Servicedowntime::Status is a perl HASH, keyed with the Nagios downtime IDs, where each ID has the following accessor methods (for v3): host_name service_description downtime_id entry_time start_time end_time triggered_by fixed duration author comment program() Returns a Nagios::Program::Status object. No arguments. my $prog_st = $log->program; Nagios::Program::Status has the following accessor methods (For V1): program_start nagios_pid daemon_mode last_command_check last_log_rotation enable_notifications execute_service_checks accept_passive_service_checks enable_event_handlers obsess_over_services enable_flap_detection enable_failure_prediction process_performance_data STRUCTURE
This module contains 4 packages: Nagios::StatusLog, Nagios::Host::Status, Nagios::Service::Status, and Nagios::Program::Status. The latter 3 of them are mostly generated at compile-time in the BEGIN block. The accessor methods are real subroutines, not AUTOLOAD, so making a ton of calls to this module should be fairly quick. Also, update() is set up to only do what it says - updating from a fresh logfile should not invalidate your existing ::Status objects. AUTHOR
Al Tobey <tobeya@tobert.org> SEE ALSO
Nagios::Host Nagios::Service perl v5.12.4 2011-10-22 Nagios::StatusLog(3pm)
