fty-prometheus-rest

REST API /metrics implementation of prometheus collector.

How to build

To build fty-prometheus-rest project run:

./autogen.sh
./configure
make

How to run

deploy libfty_prometheus_rest.so in /usr/lib/bios folder copy src/09_prometheus.xml to /etc/tntnet/bios.d

systemctl restart tntnet@bios

How to test

curl --insecure https://<ip_address>/metrics

# HELP ipm_realpower_watt current realpower 
# TYPE ipm_realpower_watt gauge
ipm_realpower_watt{ device="rack-7"} 7
ipm_realpower_watt{ device="rack-6"} 35
# HELP ipm_temperature_celcius current ambiant temperature 
# TYPE ipm_temperature_celcius gauge
ipm_temperature_celcius{ device="room-4"} 36
ipm_temperature_celcius{ device="row-5"} 36
# HELP ipm_humidity_percent current ambiant temperature 
# TYPE ipm_humidity_percent gauge
ipm_humidity_percent{ device="room-4"} 16.89

How to configure prometheus.yml

add this section in "scrape_configs"

 - job_name: 'ipm'
   scheme: https
   tls_config:
     insecure_skip_verify: true
   static_configs:
     - targets: ['<ip_addr>:443']

then restart prometheus

what kind of metrics are collected by prometheus ?

for now the published metrics are :

# HELP ipm_realpower_watt current realpower
# TYPE ipm_realpower_watt gauge
# HELP ipm_temperature_celcius current ambiant temperature
# TYPE ipm_temperature_celcius gauge
# HELP ipm_humidity_percent current ambiant temperature
# TYPE ipm_humidity_percent gauge