smartdevicemanagement_exporter

Google Nest Smart Device Management exporter for Prometheus.

Prerequisites

Guides you through the prerequisite items required to start using this exporter.

Nest account migration

Ensure you migrate your Nest account to Google if you have not already done so https://www.blog.google/products/google-nest/its-time-nest-users-can-now-switch-google-accounts.

Sign up for Google Device Access Console

Follow the getting started guide https://developers.google.com/nest/device-access/get-started.

When you are done you should have the following items completed.

1. Register for the Device Access program.
2. Activate a supported Nest device with a Google account.
3. Create a Google Cloud Platform (GCP) project to enable the SDM API and get an OAuth 2.0 client ID.
4. Create a Device Access project to receive a Project ID.

Installation

You can download the binary for your OS and Architecture on the releases page. A Docker image is also provided which is also found on the releases page.

https://github.com/ryancurrah/smartdevicemanagement_exporter/releases

Configuration

All the configuration parameters for this exporter.

• -listen-address. Envvar: LISTEN_ADDRESS. Default: :8080. Address to listen on for HTTP requests.
• -project-id. Envvar: PROJECT_ID. Default: . ID of the Smart Device Management project (Required).
• -credentials. Envvar: CREDENTIALS. Default: client_secret.json. Location on disk to the Oauth2 credentials JSON file.
• -refresh-token. Envvar: REFRESH_TOKEN. Default: refresh_token.json. Location on disk to store the Oauth2 refresh token JSON file.
• -record-metrics-delay. Envvar: RECORD_METRICS_DELAY. Default: 1m. Delay between queries to the Smart Device Management API for recording metrics.

Endpoints

All the HTTP endpoints for this exporter.

• /metrics. Prometheus metrics are exposed here for scraping.
• /authstatus. Provides the current authentication status of the exporter with Google APIs.
• /authorize. Starts or resets the authentication of the exporter with the Partner Connection Manager.

Usage

Assuming you have stored the client_secret.json file in the current working directory start the exporter.

./smartdevicemanagement_exporter -project-id e14044ff-a995-4733-9672-ddad34c970d5
2021/01/03 14:19:48 running

Now authorize the exporter to use the Google APIs by visiting the authorize endpoint in your browser. You only have to do this once or when the refresh_token.json file is no longer valid.

open http://127.0.0.1:8080/authorize

Once your done filling out the prompts that authorize the exporter you will be redirected back to the exporter on a page that says: authorization code received from partner connection manager.

You can check the stdout and /authstatus page to see if the exporter has been successfully authorized.

open http://127.0.0.1:8080/authstatus

Now the exporter will start recording metrics.

open http://127.0.0.1:8080/metrics

Metrics

Currently only Thermostat devices are supported.

# HELP sdm_thermostat_humidity_ambientHumidityPercent Percent humidity, measured at the device.
# TYPE sdm_thermostat_humidity_ambientHumidityPercent gauge
sdm_thermostat_humidity_ambientHumidityPercent{CustomName="",Name="DU1AeyLeA",Room="Hallway",Type="sdm.devices.types.THERMOSTAT"} 34

# HELP sdm_thermostat_temperature_ambientTemperatureCelsius Temperature in degrees Celsius, measured at the device.
# TYPE sdm_thermostat_temperature_ambientTemperatureCelsius gauge
sdm_thermostat_temperature_ambientTemperatureCelsius{CustomName="",Name="DU1AeyLeA",Room="Hallway",Type="sdm.devices.types.THERMOSTAT"} 22.189987

# HELP sdm_thermostat_thermostatTemperatureSetpoint_coolCelsius Target temperature in Celsius for thermostat COOL and HEATCOOL modes.
# TYPE sdm_thermostat_thermostatTemperatureSetpoint_coolCelsius gauge
sdm_thermostat_thermostatTemperatureSetpoint_coolCelsius{CustomName="",Name="DU1AeyLeA",Room="Hallway",Type="sdm.devices.types.THERMOSTAT"} 0

# HELP sdm_thermostat_thermostatTemperatureSetpoint_heatCelsius Target temperature in Celsius for thermostat HEAT and HEATCOOL modes.
# TYPE sdm_thermostat_thermostatTemperatureSetpoint_heatCelsius gauge
sdm_thermostat_thermostatTemperatureSetpoint_heatCelsius{CustomName="",Name="DU1AeyLeA",Room="Hallway",Type="sdm.devices.types.THERMOSTAT"} 22