utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/netdev.lua

   1 local function scrape()
   2   local netdevstat = line_split(get_contents("/proc/net/dev"))
   3   local netdevsubstat = {"receive_bytes", "receive_packets", "receive_errs",
   4                    "receive_drop", "receive_fifo", "receive_frame", "receive_compressed",
   5                    "receive_multicast", "transmit_bytes", "transmit_packets",
   6                    "transmit_errs", "transmit_drop", "transmit_fifo", "transmit_colls",
   7                    "transmit_carrier", "transmit_compressed"}
   8   for i, line in ipairs(netdevstat) do
   9     netdevstat[i] = string.match(netdevstat[i], "%S.*")
  10   end
  11   local nds_table = {}
  12   local devs = {}
  13   for i, nds in ipairs(netdevstat) do
  14     local dev, stat_s = string.match(netdevstat[i], "([^:]+): (.*)")
  15     if dev then
  16       nds_table[dev] = space_split(stat_s)
  17       table.insert(devs, dev)
  18     end
  19   end
  20   for i, ndss in ipairs(netdevsubstat) do
  21     netdev_metric = metric("node_network_" .. ndss, "gauge")
  22     for ii, d in ipairs(devs) do
  23       netdev_metric({device=d}, nds_table[d][i])
  24     end
  25   end
  26 end
  27
  28 return { scrape = scrape }