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prometheus-node-exporter-lua: Add optional mwan3 collector

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Supports interface metrics exposed by mwan3. The performance is a
little slow compared to other collectors (~300ms) as the ubus call is
where most of the time is spent. Any future speedups are likely better
put into mwan3's rpcd binary.

Signed-off-by: Ryan Doyle <ryan@doylenet.net>
[rename metrics,bump version]
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
(cherry picked from commit c279efb760)
This commit is contained in:
Ryan Doyle
2023-02-20 19:46:15 +11:00
committed by Etienne Champetier
parent 87a831fa8e
commit d25180284d
2 changed files with 56 additions and 1 deletions
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43
utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/mwan3.lua Normal file
View File

@@ -0,0 +1,43 @@
local ubus = require "ubus"
local function scrape()
local u = ubus.connect()
local status = u:call("mwan3", "status", {})
if status == nil then
error("Could not get mwan3 status")
end
local mwan3_age = metric("mwan3_interface_age", "counter")
local mwan3_online = metric("mwan3_interface_online", "counter")
local mwan3_offline = metric("mwan3_interface_offline", "counter")
local mwan3_uptime = metric("mwan3_interface_uptime", "counter")
local mwan3_score = metric("mwan3_interface_score", "gauge")
local mwan3_lost = metric("mwan3_interface_lost", "counter")
local mwan3_turn = metric("mwan3_interface_turn", "counter")
local mwan3_status = metric("mwan3_interface_status", "gauge")
local mwan3_enabled = metric("mwan3_interface_enabled", "gauge")
local mwan3_running = metric("mwan3_interface_running", "gauge")
local mwan3_up = metric("mwan3_interface_up", "gauge")
local possible_status = {"offline", "online", "disconnecting", "connecting", "disabled", "notracking", "unknown"}
for iface, iface_details in pairs(status.interfaces) do
mwan3_age({interface = iface}, iface_details.age)
mwan3_online({interface = iface}, iface_details.online)
mwan3_offline({interface = iface}, iface_details.offline)
mwan3_uptime({interface = iface}, iface_details.uptime)
mwan3_score({interface = iface}, iface_details.score)
mwan3_lost({interface = iface}, iface_details.lost)
mwan3_turn({interface = iface}, iface_details.turn)
for _, s in ipairs(possible_status) do
local is_active_status = iface_details.status == s and 1 or 0
mwan3_status({interface = iface, status = s}, is_active_status)
end
mwan3_enabled({interface = iface}, iface_details.enabled and 1 or 0)
mwan3_running({interface = iface}, iface_details.running and 1 or 0)
mwan3_up({interface = iface}, iface_details.up and 1 or 0)
end
end
return { scrape = scrape }