tc4400exporter

tc4400_exporter

Command tc4400_exporter provides a Prometheus exporter for the Technicolor TC4400 Cable Modem. MIT Licensed.

Config

listen:
  address: ":9130"
  metricspath: "/metrics"
modems:
  -
    address: "http://192.168.100.1"
    username: "user"
    password: "pass"
    timeout: "5s"
  -
    address: "http://10.0.100.1"
    username: "admin"
    password: "secret"
    timeout: "5s"

The tc4400_exporter's Prometheus scrape configuration (prometheus.yml) is configured in a similar way to the official Prometheus blackbox_exporter.

The targets list under static_configs should specify the addresses of any TC4400 modems which should be monitored by the exporter. The address of the tc4400_exporter itself must be specified in relabel_configs as well.

scrape_configs:
  - job_name: 'tc4400'
    static_configs:
      - targets:
        - 'http://192.168.100.1' # TC4400 modem.
        - 'http://10.0.100.1' # TC4400 modem.
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: '127.0.0.1:9393' # tc4400_exporter.

Usage

$ ./tc4400_exporter -config.file ./config.yaml
2022/02/05 16:18:06 starting TC4400 exporter on ":9130"

The exporter is now running at http://localhost:9130/metrics?target=http://192.168.100.1 and notice the target query param matches one of the modems in the config to support running a single tc4400_exporter for multiple TC4400 modems.