prometheus-node-exporter-lua: add dawn exporter

DAWN is a decentralized WiFi Controller.
https://github.com/berlin-open-wireless-lab/DAWN

The node exporter allows to gather statistics about your network:
- Infos about AP (Channel Utilization, Station Count, ...)
- Connected Clients (Signal, Capabilities)

Signed-off-by: Nick Hainke <vincent@systemli.org>
This commit is contained in:
Nick Hainke 2020-05-27 12:31:51 +02:00
parent 26291bba4e
commit c8d1a3b60c
2 changed files with 54 additions and 2 deletions

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@ -4,8 +4,8 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=prometheus-node-exporter-lua
PKG_VERSION:=2020.02.03
PKG_RELEASE:=2
PKG_VERSION:=2020.06.26
PKG_RELEASE:=1
PKG_MAINTAINER:=Etienne CHAMPETIER <champetier.etienne@gmail.com>
PKG_LICENSE:=Apache-2.0

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@ -0,0 +1,52 @@
local ubus = require "ubus"
local function scrape()
local metric_dawn_ap_channel_utilization_ratio = metric("dawn_ap_channel_utilization_ratio","gauge")
local metric_dawn_ap_stations_total = metric("dawn_ap_stations_total","gauge")
local metric_dawn_station_signal_dbm = metric("dawn_station_signal_dbm","gauge")
local u = ubus.connect()
local network = u:call("dawn", "get_network", {})
for ssid, ssid_table in pairs(network) do
for ap, ap_table in pairs(ssid_table) do
if (ap_table['local'] == true) then
local ht_support = (ap_table['ht_support'] == true) and 1 or 0
local vht_support = (ap_table['vht_support'] == true) and 1 or 0
local labels = {
ssid = ssid,
bssid = ap,
freq = ap_table['freq'],
ht_support = ht_support,
vht_support = vht_support,
neighbor_report = ap_table['neighbor_report'],
}
metric_dawn_ap_channel_utilization_ratio(labels, ap_table['channel_utilization'] / 255)
metric_dawn_ap_stations_total(labels, ap_table['num_sta'])
for client, client_table in pairs(ap_table) do
if (type(client_table) == "table") then
local client_ht_support = (client_table['ht'] == true) and 1 or 0
local client_vht_support = (client_table['vht'] == true) and 1 or 0
local client_signal = client_table['signal'] or -255
local labels = {
ssid = ssid,
bssid = ap,
mac = client,
ht_support = client_ht_support,
vht_support = client_vht_support,
}
metric_dawn_station_signal_dbm(labels, client_signal)
end
end
end
end
end
end
return { scrape = scrape }