From 72ce00fc5b382eef8ce7b5596230bdef369e4cfd Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sun, 19 Sep 2021 20:20:41 +0200
Subject: add sensors to lua prometheus exporter

---
 .../openwrt/sensors_promethues-node-exporter.lua   | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 files/common/openwrt/sensors_promethues-node-exporter.lua

(limited to 'files/common/openwrt/sensors_promethues-node-exporter.lua')

diff --git a/files/common/openwrt/sensors_promethues-node-exporter.lua b/files/common/openwrt/sensors_promethues-node-exporter.lua
new file mode 100644
index 00000000..9c814659
--- /dev/null
+++ b/files/common/openwrt/sensors_promethues-node-exporter.lua
@@ -0,0 +1,26 @@
+local sensors = require "sensors"
+
+local config, _ = sensors.read_config('/etc/sensors.json')
+sensors.setup(config)
+local units = {
+    temperature = "celsius",
+    humidity = "percent",
+    pressure = "bar",
+}
+
+local function scrape()
+    local readings, err = sensors.read(config)
+    if not readings then return end
+
+    for name, values in pairs(readings) do
+        labels = { name = name, kind = values._kind_ }
+        for t, v in pairs(values) do
+            local unit = units[t]
+            if unit ~= nil then
+                metric("sensors_" .. t .. "_" .. unit, "gauge", labels, v)
+            end
+        end
+    end
+end
+
+return { scrape = scrape }
-- 
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