Declare default values for monitored jobs and some default usual tests.

check_commands.rb

module DefaultMonitoredValues

  # Handle defaults to prevent cluttering the chef registry with these things
  def DefaultMonitoredValues.value_or(hash, key, or_value)
    if hash.has_key?(key) 
      hash[key]
    else
      or_value
    end
  end

  def DefaultMonitoredValues.passive(service)
    value_or(service, 'passive', false)
  end  

  def DefaultMonitoredValues.check_command(service)
    begin
    (service['check_command'].
      is_a?(Hash)?service['check_command']['nagios']:
      service['check_command']).to_a.map{|i| i.to_s}.join("!")
    rescue Exception=>e
      Chef::Log.error("Unable to build command for service:#{service.inspect}")
      raise e
    end
  end


  def DefaultMonitoredValues.check_on(service)
     value_or(service, 'check_on', ['infrabox', 'testing', 'staging', 'prod'])
  end

  def DefaultMonitoredValues.notification_period(service)
    value_or(service, 'notification_period', {'prod' => "24x7", 'testing' => 'workhours', 'staging' => 'workhours', 'infrabox' => "never"})
  end

  def DefaultMonitoredValues.retry_interval(service)
    value_or(service, 'retry_interval', 1)
  end

  def DefaultMonitoredValues.normal_check_interval(service)
    value_or(service, 'normal_check_interval', 5)
  end

  def DefaultMonitoredValues.depends(service)
    value_or(service, 'depends' [])
  end

  def DefaultMonitoredValues.infrabox_check(service)
    value_or(service, 'infrabox_check', true)
  end

  def DefaultMonitoredValues.max_check_attempts(service)
    value_or(service, 'max_check_attempts', 3)
  end

  def DefaultMonitoredValues.normal_check_interval(service)
    value_or(service, 'normal_check_interval', 5)
  end

end


# Define aliase between the command passed in monitored and:
# - the command used in nagios configuration (key nagios)
# - the command used to run the test in command line (key cli)


def ssh
  {'nagios' => ['check_ssh'],
  'cli' => ['check_ssh', node[:fqdn]]
  }
end

def nrpe(*args)
  if args.length > 1
    {'nagios' => ['check_nrpe_2args', args[0], args[1]],
      'cli' => ['check_nrpe', '-H' + node[:fqdn], '-c', args[0], '-a', args[1]]
    }    
  else
    {'nagios' => ['check_nrpe_1arg', args[0]],
      'cli' => ['check_nrpe', '-H' + node[:fqdn], '-c', args[0]]
    }
  end
end

def process(name, args)
  nrpe('check_process', "#{name} #{args}")
end


def check_http(*args)
  {'nagios' => ['check_http_args', args.join(" ")],
    'cli' => ['check_http', '-I '+node[:fqdn], args]
  }
end

def check_tcp(*args)
  {'nagios' => ['check_tcp_args', args.join(" ")],
    'cli' => ['check_tcp','-H '+node[:fqdn],args]
  }
end

def check_github()
  {'nagios' => ['check_github'],
   'cli' => ['/usr/local/nagios/libexec/check_github.rb']
  }
end
def check_features()
  {'nagios' => ['check_features'],
    'cli'   => ['/usr/local/nagios/libexec/check_features']
  }
end

def check_mysql_slow()
  { 'nagios' => ['check_mysql_slow'],
    'cli' =>  ['/usr/lib/nagios/plugins/check_slow.rb']
  }
end
def check_cluster_state()
  { 'nagios' => ['check_cluster_state'],
    'cli' =>  ['/ftn/apps/hamr/check_cluster_state.rb']
  }
end

def check_chef_expander
  { 'nagios' => ['check_chef_expander'],
    'cli' => ["/usr/local/bin/chef-ruby.sh /mnt/gems-chef-#{CHEF_PACKAGE_VERSION}/gems/chef-expander-0.10.0/scripts/check_queue_size", " -w 250 -c 500"]
  }
end


def check_nagios3
  { 'nagios' => ['check_procs_args','-a "sbin/[n]agios3" -c1:1'],
    'cli' => ['/usr/lib/nagios/plugins/check_procs', '-a "sbin/[n]agios3" -c1:1']
  }
end

def check_nsca
  { 'nagios' => ['check_procs_args','-a "sbin/[n]sca" -c1:1'],
    'cli' => ['/usr/lib/nagios/plugins/check_procs', '-a "sbin/[n]sca" -c1:1']
  }
end

def check_mongo_replica_member(port)
  { 'nagios' => ['check_mongo_replica_member', port.to_s],
    'cli' => [ '/usr/lib/nagios/plugins/check_mongo_replica_member', node[:ipaddress], port.to_s]
  }
end