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prometheus-node-exporter-lua: add nftables named counters collector

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Signed-off-by: Sergey Shatunov <me@aur.rocks>
[bump version, remove #!]
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
This commit is contained in:
Sergey Shatunov
2025-04-15 21:19:56 +08:00
committed by Etienne Champetier
parent f6cb2a6b0e
commit 51137e5882
2 changed files with 39 additions and 1 deletions
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14
utils/prometheus-node-exporter-lua/Makefile
View File

@@ -5,7 +5,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=prometheus-node-exporter-lua
PKG_VERSION:=2025.06.23
PKG_RELEASE:=2
PKG_RELEASE:=3
PKG_MAINTAINER:=Etienne CHAMPETIER <champetier.etienne@gmail.com>
PKG_LICENSE:=Apache-2.0
@@ -268,6 +268,17 @@ define Package/prometheus-node-exporter-lua-ethtool/install
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/ethtool.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
define Package/prometheus-node-exporter-lua-nft-counters
$(call Package/prometheus-node-exporter-lua/Default)
TITLE+= (nftables counters collector)
DEPENDS:=prometheus-node-exporter-lua +nftables-json +lua-cjson
endef
define Package/prometheus-node-exporter-lua-nft-counters/install
$(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/nft_counters.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
$(eval $(call BuildPackage,prometheus-node-exporter-lua))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-bmx7))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-dawn))
@@ -288,3 +299,4 @@ $(eval $(call BuildPackage,prometheus-node-exporter-lua-snmp6))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-realtek-poe))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-mwan3))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-ethtool))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-nft-counters))

26
utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/nft_counters.lua Normal file
View File

@@ -0,0 +1,26 @@
local json = require "cjson"
local function scrape()
local handle = io.popen("nft --json list counters")
local result = handle:read("*a")
handle:close()
local nft_data = json.decode(result).nftables
local metric_packets = metric("nft_counter_packets", "counter")
local metric_bytes = metric("nft_counter_bytes", "counter")
for _, data in pairs(nft_data) do
if (data.counter ~= nil) then
local labels = {
family = data.counter.family,
table = data.counter.table,
name = data.counter.name,
comment = data.counter.comment
}
metric_packets(labels, data.counter.packets)
metric_bytes(labels, data.counter.bytes)
end
end
end
return { scrape = scrape }