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OpenWRT + Prometheus + Grafana + Influxdb

    Instrucciones seguidas para tener una herramienta para monitorizar la infraestructura de router basado en OpenWRT. La información ha sido recomipilada de varias fuentes. Se parte de la base de:

    • Servidor Debian 11 para desplegar las herramientas Prometheus + Grafana + InfluxDB
    • Routers basados en OpenWRT (OpenWrt 19.07.7)

    Instalación de herramientas en servidor

    Referencia: https://raspiblog.noblogs.org/post/2021/01/02/installation-of-prometheus-influxdb-and-grafana-on-debian-10-without-docker/

    Ejecución de comandos:

    apt install prometheus influxdb influxdb-client

nano /etc/prometheus/prometheus.yml

# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
# The job name is added as a label `job=` to any timeseries scraped from this config.
- job_name: 'prometheus'
# Override the global default and scrape targets from this job every 5 seconds.
scrape_interval: 5s
scrape_timeout: 5s
# metrics_path defaults to '/metrics'
# scheme defaults to 'http'.
static_configs:
- targets: ['localhost:9090']
- job_name: node
# If prometheus-node-exporter is installed, grab stats about the local
# machine by default.
static_configs:
- targets: ['localhost:9100']

systemctl restart prometheus

nano /etc/influxdb/influxdb.conf

# Just modify only the section of collectd, leave the others as-is
[[collectd]]
enabled = true
bind-address = ":25826"
database = "collectd"
retention-policy = ""
#
# The collectd service supports either scanning a directory for multiple types
# db files, or specifying a single db file.
typesdb = "/usr/local/share/collectd"
#
security-level = "none"
# auth-file = "/etc/collectd/auth_file"

wget https://raw.githubusercontent.com/collectd/collectd/master/src/types.db
echo "stations value:GAUGE:0:256" >> types.db
mkdir /usr/local/share/collectd/
mv types.db /usr/local/share/collectd/types.db

netstat -tulpn|egrep "8086|25826"

$ influx
> CREATE DATABASE collectd
> exit

$ apt-get install -y apt-transport-https software-properties-common wget
$ wget -q -O - https://packages.grafana.com/gpg.key | apt-key add -
$ echo "deb https://packages.grafana.com/oss/deb stable main" | tee -a /etc/apt/sources.list.d/grafana.list
$ apt-get update
$ apt-get install grafana

$ sudo systemctl daemon-reload
$ sudo systemctl enable grafana-server
$ sudo systemctl start grafana-server

netstat -tulpn|egrep 3000

    Instalación de paquetes en OpenWRT

    • Referenrecia: https://grafana.com/grafana/dashboards/11147
    • Referencia: https://www.cloudrocket.at/posts/monitor-openwrt-nodes-with-prometheus/
    prometheus-node-exporter-lua
prometheus-node-exporter-lua-nat_traffic
prometheus-node-exporter-lua-netstat
prometheus-node-exporter-lua-openwrt
prometheus-node-exporter-lua-wifi
prometheus-node-exporter-lua-wifi_stations

    Comandos para ejecutar (si la interface de salida es «35PRO»)

    10 cat /etc/config/network
12 sed -i.bak 's#loopback#35PRO#g' /etc/config/prometheus-node-exporter-lua
13 cat /etc/config/prometheus-node-exporter-lua
18 /etc/init.d/prometheus-node-exporter-lua restart
19 netstat -tulpn | grep 9100
20 ps | grep prometheus

    Creación Dashboard

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