Class: NagiosHerald::Formatter::CheckCpu

Inherits:
NagiosHerald::Formatter show all
Includes:
Logging
Defined in:
lib/nagios-herald/formatters/check_cpu.rb

Instance Attribute Summary

Attributes inherited from NagiosHerald::Formatter

#content, #sandbox, #state_type

Instance Method Summary collapse

Methods included from Logging

#configure_logger_for, #logger, #logger_for

Methods inherited from NagiosHerald::Formatter

#ack_info, #action_url, #add_attachment, #add_html, #add_short_text, #add_text, #alert_ack_url, #clean_sandbox, #delete_html, #delete_section_for_type, #delete_short_text, #delete_text, #end_section, formatters, #generate_ack_content, #generate_content, #generate_message_content, #generate_problem_content, #generate_recovery_content, #generate_section, #generate_subject, #get_sandbox_path, #host_info, inherited, #initialize, #line_break, #notes, #notification_info, #recipients_email_link, #short_ack_info, #short_state_detail, #start_section, #state_info

Methods included from Util

#get_nagios_var, get_script_path, load_helper, underscore_to_camel_case, #unescape_text

Constructor Details

This class inherits a constructor from NagiosHerald::Formatter

Instance Method Details

#additional_details ⇒ Object

Public: Overrides Formatter::Base#additional_details. Colorizes the ‘ps` output returned by the check_cpu_stats NRPE check. The output contains the top n processes by CPU similar to:

TOP 5 PROCESSES BY CPU:

%CPU         TIME         USER    PID COMMAND
 6.0     00:00:00        larry  32256 ps -eo %cpu,cputime,user,pid,args --sort -%cpu
 0.7     06:22:09       nobody  12161 /usr/sbin/gmond
 0.6   1-02:14:24         root   1424 [kipmi0]
 0.5     00:49:52        10231  15079 mosh-server new -s -c 8 -l LANG=en_US.UTF-8
 0.3     04:36:53         root  12996 /opt/extrahop/sbin/rpcapd -v -d -L -f /opt/extrahop/etc/rpcapd.ini

Returns nothing. Updates the formatter content hash.



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# File 'lib/nagios-herald/formatters/check_cpu.rb', line 48

def additional_details
  section = __method__
  long_output = get_nagios_var("NAGIOS_LONG#{@state_type}OUTPUT")
  lines = long_output.split('\n')
  html = []
  html << "<pre>"
  html << lines[0]  # TOP 5 PROCESSES BY CPU:
  html << lines[1]  # %CPU         TIME         USER    PID COMMAND
  html << "<font color='red'>#{lines[2]}</font>"  # Color the first result red...
  for i in 3..lines.length-1
    html << "<font color='orange'>#{lines[i]}</font>" # ...and the remainder orange.
  end
  html << "</pre>"
  output_string = html.join( "<br>" )
  add_html(section, "<b>Additional Details</b>:")
  add_html(section, output_string)
  add_text(section, "Additional Details:\n#")
  add_text(section, "#{unescape_text(long_output)}\n")
  line_break(section)
end

#additional_info ⇒ Object

Public: Overrides Formatter::Base#additional_info. Colorizes the service output to highlight either the iowait or idle value.

WARNING CPU iowait is > 0%: user=3.60% system=0.99% iowait=0.00% idle=95.41% CRITICAL CPU idle is < 100%: user=3.02% system=3.25% iowait=0.01% idle=93.72%

Returns nothing. Updates the formatter content hash.



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# File 'lib/nagios-herald/formatters/check_cpu.rb', line 13

def additional_info
  section = __method__
  output = get_nagios_var("NAGIOS_#{@state_type}OUTPUT")
  #if match = /(?<state>\w+ CPU) (?<metric>\w+) (?<threshold_and_stats>.*) (?<iowait>iowait=.*%) (?<idle>idle=.*%)/.match(output)
  add_html(section, "<b>Additional Info</b>:<br>")
  add_text(section, "Additional Info: ")
  if match = /(?<state>\w+ CPU) (?<metric>iowait) (?<threshold_and_stats>.*) (?<iowait>iowait=.*%) (?<idle>idle=.*%)/.match(output)
    iowait_info = "#{match[:state]} <b><font color='red'>#{match[:metric]}</font></b> "
    iowait_info += "#{match[:threshold_and_stats]} <b><font color='red'>#{match[:iowait]}</font></b> "
    iowait_info += "#{match[:idle]}"
    add_html(section, iowait_info)
  elsif match = /(?<state>\w+ CPU) (?<metric>idle) (?<threshold_and_stats>.*) (?<iowait>iowait=.*%) (?<idle>idle=.*%)/.match(output)
    iowait_info = "#{match[:state]} <b><font color='red'>#{match[:metric]}</font></b> "
    iowait_info += "#{match[:threshold_and_stats]} #{match[:iowait]} "
    iowait_info += "<b><font color='red'>#{match[:idle]}</font></b>"
    add_html(section, iowait_info)
  else
    add_html(section, output)
  end
  add_text(section, output)   # nothing fancy to see for text
end