⚡ zwave-prometheus-exporter

Listens to Z-Wave nodes and exports Prometheus metrics.

⚡ Installation

Using Docker

docker run \
  -p 9850:9850 \
  -v $(pwd)/metrics.json:/home/app/metrics.json \
  -v $(pwd)/keys.json:/home/app/keys.json \
  --device=/dev/ttyUSB0:/dev/ttyUSB0 \
  --name zwave-prometheus-exporter \
  --rm \
  ilshidur/zwave-prometheus-exporter

As a global npm module

Node.js required.

npm i -g zwave-prometheus-exporter
zwave-prometheus-exporter

By cloning the git project

Node.js required.

git clone https://github.com/Ilshidur/zwave-prometheus-exporter.git
npm ci
node cli.js

⚡ Usage

Usage: zwave-prometheus-exporter [options]

Options:
  -V, --version                 output the version number
  -k, --keys <keys path>        the keys file path (default: "keys.json")
  -m, --metrics <metrics path>  the metrics file path (default: "metrics.json")
  -i, --input <input path>      the serial port file path (default: "/dev/ttyUSB0")
  -p --port <port>              the port where the prometheus metrics will be exposed (default: 9850)
  -h, --help                    display help for command

⚡ Configuration files

The CLI needs 2 files to run : metrics.json and keys.json. If no path is provided, the CLI will try to load zwave-prometheus-exporter/metrics.json and zwave-prometheus-exporter/keys.json.

Those 2 files are required for the CLI to run.

metrics.json

This file contains the Z-Wave values to monitor and export as Prometheus metrics.

Each field being :

• name : the name with which this Z-Wave value will be exposed as a Prometheus metric.
• commandClass : the Command Class of the value to export.
• property : the Command Class property of the value to export.
• propertyKey : the Command Class property key of the value to export.

[
  {
    "name": "power_consumption_watts",
    "commandClass": "0x32",
    "property": "value",
    "propertyKey": 66049
  },
  {
    "name": "power_consumption_volts",
    "commandClass": "0x32",
    "property": "value",
    "propertyKey": 66561
  },
  {
    "name": "power_consumption_amperes",
    "commandClass": "0x32",
    "property": "value",
    "propertyKey": 66817
  }
]

keys.json

This file contains the Z-Wave keys used to communicate securely with the Z-Wave nodes. Each key is a 32 hex caracters length with different content. Sharing keys between multiple security classes is a security risk!

You can find more details on the Z-Wave JS docs.

{
  "s2": {
    "accessControl": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "authenticated": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "unauthenticated": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
  },
  "s0": {
    "legacy": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
  }
}

⚡ TODO

• Process to securely add a node into the Z-Wave network.