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prometheus-node-exporter-lua: add bmx6/7 scraper 

scrapes bmx6 status and connected links.

example output:

    bmx6_status{id="qMp-LibreMesh-1706",version="BMX6-0.1-alpha",address="fd66:66:66🅰️6670:2ff:fe3e:9d28"} 1
    bmx6_link_rxRate{target="UPC-CN-C6-E104-Alix",source="qMp-LibreMesh-1706",dev="wlan0-mesh_12"} 100
    bmx6_link_txRate{target="UPC-CN-C6-E104-Alix",source="qMp-LibreMesh-1706",dev="wlan0-mesh_12"} 100
    bmx6_link_rxRate{target="UPC-CN-C6-E104-Alix-Paul",source="qMp-LibreMesh-1706",dev="wlan1-adhoc_12"} 100
    bmx6_link_txRate{target="UPC-CN-C6-E104-Alix-Paul",source="qMp-LibreMesh-1706",dev="wlan1-adhoc_12"} 100
    bmx6_link_rxRate{target="UPC-CN-C6-E104-Turoffner",source="qMp-LibreMesh-1706",dev="wlan0-mesh_12"} 97
    bmx6_link_txRate{target="UPC-CN-C6-E104-Turoffner",source="qMp-LibreMesh-1706",dev="wlan0-mesh_12"} 100
    node_scrape_collector_duration_seconds{collector="bmx6"} 0.0025260448455811
    node_scrape_collector_success{collector="bmx6"} 1
    scrapes bmx7 status and connected links.

example output:

    bmx7_status{id="C68791D2",revision="3a52f89",name="smpl-18f4ce",address="fd70:c687:91d2:8ab3:1a88:6b14:bad0:2b18"} 1
    bmx7_cpu_usage 0.7
    bmx7_mem_usage 3204000
    bmx7_link_rxRate{target="F48239CD",dev="wlan0-mesh_13",source="C68791D2",name="smpl-07889a"} 54000
    bmx7_link_txRate{target="F48239CD",dev="wlan0-mesh_13",source="C68791D2",name="smpl-07889a"} 52729
    node_scrape_collector_duration_seconds{collector="bmx7"} 0.0020999908447266
    node_scrape_collector_success{collector="bmx7"} 1

prometheus-node-exporter-lua: bmx6/7 netjson format

adds labels called source and target to links instead of only the target
previously called "id".

Retrieving all *links* from prometheus now makes it easier to create
a valid netjson(.org) graph.

It's not feasible to use *instance* as *source* as for instance likely
the name is used for dns, instead of the ID. Using the *name* instead of
*id* for netjson linking results in a bad graph when two devices have
the same (default) hostname.

Signed-off-by: Paul Spooren <spooren@informatik.uni-leipzig.de>
This commit is contained in:
Paul Spooren 2018-02-07 01:05:04 +01:00
parent faa8ce7690
commit f7093021f9
3 changed files with 108 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
utils/prometheus-node-exporter-lua/Makefile
View File

@ -58,6 +58,18 @@ define Package/prometheus-node-exporter-lua-wifi_stations
DEPENDS:=prometheus-node-exporter-lua +libiwinfo-lua +libubus-lua
endef
define Package/prometheus-node-exporter-lua-bmx6
$(call Package/prometheus-node-exporter-lua/Default)
TITLE+= (bmx6 links collector)
DEPENDS:=prometheus-node-exporter-lua bmx6 +lua-cjson +bmx6-json
endef
define Package/prometheus-node-exporter-lua-bmx7
$(call Package/prometheus-node-exporter-lua/Default)
TITLE+= (bmx7 links collector)
DEPENDS:=prometheus-node-exporter-lua bmx7 +lua-cjson +bmx7-json
endef
Build/Compile=
define Package/prometheus-node-exporter-lua/install
@ -97,8 +109,20 @@ define Package/prometheus-node-exporter-lua-wifi_stations/install
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/wifi_stations.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
define Package/prometheus-node-exporter-lua-bmx6/install
$(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/bmx6.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
define Package/prometheus-node-exporter-lua-bmx7/install
$(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/bmx7.lua $(1)/usr/lib/lua/prometheus-collectors/
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-wifi))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-wifi_stations))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-bmx6))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-bmx7))

39
utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/bmx6.lua Normal file
View File

@ -0,0 +1,39 @@
#!/usr/bin/lua
local json = require "cjson"
local function interpret_suffix(rate)
local value = string.sub(rate, 1, -2)
local suffix = string.sub(rate, -1)
if suffix == "K" then return tonumber(value) * 10^3 end
if suffix == "M" then return tonumber(value) * 10^6 end
if suffix == "G" then return tonumber(value) * 10^9 end
return rate
end
local function scrape()
local status = json.decode(get_contents("/var/run/bmx6/json/status")).status
local labels = {
version = status.version,
id = status.name,
address = status.primaryIp
}
metric("bmx6_status", "gauge", labels, 1)
local links = json.decode(get_contents("/var/run/bmx6/json/links")).links
local metric_bmx6_rxRate = metric("bmx6_link_rxRate","gauge")
local metric_bmx6_txRate = metric("bmx6_link_txRate","gauge")
for _, link in pairs(links) do
local labels = {
source = status.name,
target = link.name,
dev = link.viaDev
}
metric_bmx6_rxRate(labels, interpret_suffix(link.rxRate))
metric_bmx6_txRate(labels, interpret_suffix(link.txRate))
end
end
return { scrape = scrape }

45
utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/bmx7.lua Normal file
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@ -0,0 +1,45 @@
#!/usr/bin/lua
local json = require "cjson"
local function interpret_suffix(rate)
if rate ~= nil then
local value = string.sub(rate, 1, -2)
local suffix = string.sub(rate, -1)
if suffix == "K" then return tonumber(value) * 10^3 end
if suffix == "M" then return tonumber(value) * 10^6 end
if suffix == "G" then return tonumber(value) * 10^9 end
end
return rate
end
local function scrape()
local status = json.decode(get_contents("/var/run/bmx7/json/status")).status
local labels = {
id = status.shortId,
name = status.name,
address = status.primaryIp,
revision = status.revision,
}
metric("bmx7_status", "gauge", labels, 1)
metric("bmx7_cpu_usage", "gauge", nil, status.cpu)
metric("bmx7_mem_usage", "gauge", nil, interpret_suffix(status.mem))
local links = json.decode(get_contents("/var/run/bmx7/json/links")).links
local metric_bmx7_rxRate = metric("bmx7_link_rxRate","gauge")
local metric_bmx7_txRate = metric("bmx7_link_txRate","gauge")
for _, link in pairs(links) do
local labels = {
source = status.shortId,
target = link.shortId,
name = link.name,
dev = link.dev
}
metric_bmx7_rxRate(labels, interpret_suffix(link.rxRate))
metric_bmx7_txRate(labels, interpret_suffix(link.txRate))
end
end
return { scrape = scrape }