contrib/statusd/statusd_uptime.lua

   1 -- Authors: Sadrul Habib Chowdhury <imadil@gmail.com>
   2 -- License: Public domain
   3 -- Last Changed: Unknown
   4 --
   5 -- statusd_uptime.lua
   6 --
   7 -- Author
   8 -- Sadrul Habib Chowdhury (Adil)
   9 -- imadil at gmail dot com
  10
  11 --
  12 -- how often should the monitor be updated?
  13 --
  14
  15 if not statusd_uptime then
  16   statusd_uptime={
  17     interval=30*1000,
  18   }
  19 end
  20
  21 local timer = nil   -- the timer
  22
  23 --
  24 -- update the uptime monitor
  25 --
  26 local function get_uptime_info()
  27     local f=io.popen('uptime', 'r')
  28     timer:set(statusd_uptime.interval, get_uptime_info)
  29     if not f then
  30         statusd.inform("uptime", "oops")
  31         return
  32     end
  33     local s=f:read('*line')
  34     f:close()
  35
  36     s = string.gsub(s, ", +%d+ user.+", "")    -- unnecessary
  37     s = string.gsub(s, "%d+:%d+:%d+ up +", "") -- time is unnecessary
  38
  39     statusd.inform("uptime", s)
  40 end
  41
  42 --
  43 -- start the timer
  44 --
  45 local function init_uptime_monitor()
  46     timer = statusd.create_timer()
  47     statusd.inform("uptime_template", "xxxxxxxxxxxxxxx")
  48     get_uptime_info()
  49 end
  50
  51 init_uptime_monitor()
  52