Class: Check

Inherits:
CloudstackNagios::Base show all
Defined in:
lib/cloudstack-nagios/commands/check.rb

Constant Summary collapse

RETURN_CODES = 
{0 => 'ok', 1 => 'warning', 2 => 'critical'}

Instance Attribute Summary

Attributes inherited from CloudstackNagios::Base

#config

Instance Method Summary collapse

Methods inherited from CloudstackNagios::Base

exit_on_failure?

Methods included from CloudstackNagios::Helper

#cs_routers, #load_template

Instance Method Details

#cpu ⇒ Object 



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# File 'lib/cloudstack-nagios/commands/check.rb', line 70

def cpu
  host = SSHKit::Host.new("root@#{options[:host]}")
  host.ssh_options = sshoptions(options[:ssh_key])
  host.port = options[:port]
  mpstat_output = ""
  on host do |h|
    mpstat_output = capture(:mpstat)
  end
  values = mpstat_output.scan(/\d+/)
  usage = 100 - values[-1].to_f 
  data = check_data(100, usage, options[:warning], options[:critical])
  puts "CPU #{RETURN_CODES[data[0]]} - usage = #{data[1]}% | usage=#{data[1]}%"
  exit data[0]
end

#memory ⇒ Object 



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# File 'lib/cloudstack-nagios/commands/check.rb', line 30

def memory
  host = SSHKit::Host.new("root@#{options[:host]}")
  host.ssh_options = sshoptions(options[:ssh_key])
  host.port = options[:port]
  free_output = ""
  on host do |h|
    free_output = capture(:free)
  end
  values = free_output.scan(/\d+/)
  total = values[0].to_i
  free = values[2].to_i
  free_b = values[7].to_i
  data = check_data(total, free_b, options[:warning], options[:critical])
  puts "MEMORY #{RETURN_CODES[data[0]]} - usage = #{data[1]}% | usage=#{data[1]}% total=#{total}M, free=#{free}M, free_wo_buffers=#{free_b}M"
  exit data[0]
end

#network ⇒ Object 



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# File 'lib/cloudstack-nagios/commands/check.rb', line 145

def network
  host = SSHKit::Host.new("root@#{options[:host]}")
  host.ssh_options = sshoptions(options[:ssh_key])
  host.port = options[:port]
  r1, t1, r2, t2 = ""
  on host do |h|
    r1 = capture(:cat, '/sys/class/net/eth0/statistics/rx_bytes').to_f
    t1 = capture(:cat, '/sys/class/net/eth0/statistics/tx_bytes').to_f
    sleep 1
    r2 = capture(:cat, '/sys/class/net/eth0/statistics/rx_bytes').to_f
    t2 = capture(:cat, '/sys/class/net/eth0/statistics/tx_bytes').to_f
  end
  rbps = (r2 - r1)
  tbps = (t2 - t1)
  data = check_data(1073741824, (1073741824 - rbps), options[:warning], options[:critical])
  puts "NETWORK #{RETURN_CODES[data[0]]} - usage = #{data[1]}% | rxbps=#{rbps.round(0)}B, txbps=#{tbps.round(0)}B"
  exit data[0]
end

#rootfs_rw ⇒ Object 



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# File 'lib/cloudstack-nagios/commands/check.rb', line 108

def rootfs_rw
  host = SSHKit::Host.new("root@#{options[:host]}")
  host.ssh_options = sshoptions(options[:ssh_key])
  host.port = options[:port]
  proc_out = ""
  on host do |h|
    proc_out = capture(:cat, '/proc/mounts')
  end
  rootfs_rw = proc_out.match(/rootfs\srw\s/)
  status = rootfs_rw ? 0 : 2
  puts "ROOTFS_RW #{rootfs_rw ? 'OK - rootfs writeable' : 'CRITICAL - rootfs NOT writeable'}"
  exit status
end