diff options
| author | Gérondal Thibault <contact@tycale.be> | 2020-07-03 23:21:12 +0200 |
|---|---|---|
| committer | Paul Spooren <mail@aparcar.org> | 2020-07-20 13:11:04 -1000 |
| commit | e2b3fec6bfca8e9843aa5ec297803869061d2a5d (patch) | |
| tree | 6f47089905df126167e6ad6d72bc8949fa74c092 /utils/prometheus-node-exporter-lua | |
| parent | f4e878c215d0cfd2acfc2cf823e7900e7bb0dd80 (diff) | |
prometheus-node-exporter-lua: uci_dhcp_host module
Extract data from configuration file /etc/config/dhcp and create labels
{name, ip, mac, dns} via uci. Those labels are useful in order to craft
complex prometheus queries as replacing the MAC address to a custom
name. E.g.: wifi_station_signal_dbm * on (mac) group_left(name)
uci_dhcp_host or on (mac) label_replace(wifi_station_signal_dbm, "name",
"$1", "mac", "(.+)")
Signed-off-by: Gérondal Thibault <contact@tycale.be>
Diffstat (limited to 'utils/prometheus-node-exporter-lua')
| -rw-r--r-- | utils/prometheus-node-exporter-lua/Makefile | 14 | ||||
| -rw-r--r-- | utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua | 15 |
2 files changed, 28 insertions, 1 deletions
diff --git a/utils/prometheus-node-exporter-lua/Makefile b/utils/prometheus-node-exporter-lua/Makefile index 1a6b9a7b7..b6622d9ca 100644 --- a/utils/prometheus-node-exporter-lua/Makefile +++ b/utils/prometheus-node-exporter-lua/Makefile @@ -4,7 +4,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=prometheus-node-exporter-lua -PKG_VERSION:=2020.06.26 +PKG_VERSION:=2020.07.04 PKG_RELEASE:=1 PKG_MAINTAINER:=Etienne CHAMPETIER <champetier.etienne@gmail.com> @@ -40,6 +40,12 @@ define Package/prometheus-node-exporter-lua-nat_traffic DEPENDS:=prometheus-node-exporter-lua endef +define Package/prometheus-node-exporter-lua-uci_dhcp_host + $(call Package/prometheus-node-exporter-lua/Default) + TITLE+= (uci_dhcp_host collector) + DEPENDS:=prometheus-node-exporter-lua +libuci-lua +endef + define Package/prometheus-node-exporter-lua-netstat $(call Package/prometheus-node-exporter-lua/Default) TITLE+= (netstat collector) @@ -119,6 +125,11 @@ define Package/prometheus-node-exporter-lua-nat_traffic/install $(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/nat_traffic.lua $(1)/usr/lib/lua/prometheus-collectors/ endef +define Package/prometheus-node-exporter-lua-uci_dhcp_host/install + $(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors + $(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua $(1)/usr/lib/lua/prometheus-collectors/ +endef + define Package/prometheus-node-exporter-lua-netstat/install $(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors $(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/netstat.lua $(1)/usr/lib/lua/prometheus-collectors/ @@ -167,6 +178,7 @@ endef $(eval $(call BuildPackage,prometheus-node-exporter-lua)) $(eval $(call BuildPackage,prometheus-node-exporter-lua-nat_traffic)) $(eval $(call BuildPackage,prometheus-node-exporter-lua-netstat)) +$(eval $(call BuildPackage,prometheus-node-exporter-lua-uci_dhcp_host)) $(eval $(call BuildPackage,prometheus-node-exporter-lua-wifi)) $(eval $(call BuildPackage,prometheus-node-exporter-lua-wifi_stations)) $(eval $(call BuildPackage,prometheus-node-exporter-lua-hostapd_stations)) diff --git a/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua b/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua new file mode 100644 index 000000000..950962599 --- /dev/null +++ b/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/uci_dhcp_host.lua @@ -0,0 +1,15 @@ +local uci=require("uci") + +local function scrape() + local curs=uci.cursor() + local metric_uci_host = metric("uci_dhcp_host", "gauge") + + curs:foreach("dhcp", "host", function(s) + if s[".type"] == "host" then + labels = {name=s["name"], mac=string.upper(s["mac"]), dns=s["dns"], ip=s["ip"]} + metric_uci_host(labels, 1) + end + end) +end + +return { scrape = scrape } |