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README.md

Community Hass.io Add-ons: Network UPS Tools

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A Network UPS Tools daemon to allow you to easily manage battery backup (UPS) devices connected to your Hass.io machine.

About

The primary goal of the Network UPS Tools (NUT) project is to provide support for Power Devices, such as Uninterruptible Power Supplies, Power Distribution Units, Automatic Transfer Switch, Power Supply Units and Solar Controllers.

NUT provides many control and monitoring features, with a uniform control and management interface.

More than 140 different manufacturers, and several thousands models are compatible.

The Network UPS Tools (NUT) project is the combined effort of many individuals and companies.

Be sure to add a NUT Sensor to your configuration.yaml after starting the add-on:

sensor:
  - platform: nut
    name: "CyberPower 1500"
    host: a0d7b954-nut
    username: nutty
    password: changeme
    resources:
      - battery.charge
      - battery.runtime
      - ups.load
      - ups.status

For more information on how to configure the NUT Sensor in Home Assistant see the NUT Sensor documentation.

Installation

The installation of this add-on is pretty straightforward and not different in comparison to installing any other Hass.io add-on.

  1. Add our Hass.io add-ons repository to your Hass.io instance.
  2. Install the "Network UPS Tools" add-on.
  3. Configure the users and devices options.
  4. Start the "Network UPS Tools" add-on.
  5. Check the logs of the "Network UPS Tools" add-on to see if everything went well.
  6. Configure NUT Sensor in your configuration.yaml file.

NOTE: Do not add this repository to Hass.io, please use: https://github.com/hassio-addons/repository.

Configuration

Even though this add-on is just a basic add-on, it does come with some configuration options to play around with.

Note: Remember to restart the add-on when the configuration is changed.

Network UPS Tools add-on configuration:

{
  "log_level": "info",
  "users": [
    {
      "username": "nutty",
      "password": "changeme",
      "instcmds": [
        "all"
      ],
      "actions": []
    }
  ],
  "devices": [
    {
      "name": "myups",
      "driver": "usbhid-ups",
      "port": "auto",
      "config": []
    }
  ],
  "upsd": [
    "LISTEN 0.0.0.0"
  ],
  "nut": {
    "mode": "netserver"
  }
}

Option: log_level

The log_level option controls the level of log output by the add-on and can be changed to be more or less verbose, which might be useful when you are dealing with an unknown issue. Possible values are:

  • trace: Show every detail, like all called internal functions.
  • debug: Shows detailed debug information.
  • info: Normal (usually) interesting events.
  • warning: Exceptional occurrences that are not errors.
  • error: Runtime errors that do not require immediate action.
  • fatal: Something went terribly wrong. Add-on becomes unusable.

Please note that each level automatically includes log messages from a more severe level, e.g., debug also shows info messages. By default, the log_level is set to info, which is the recommended setting unless you are troubleshooting.

Option: users

This option allows you to specify a list of one or more users. Each user can have its own privileges like defined in the sub-options below.

Refer to the upsd.users(5) documentation for more information.

Sub-option: username

The username the user needs to use to login to the NUT server. A valid username contains only a-z, A-Z, 0-9 and underscore characters (_).

Sub-option: password

Set the password for this user.

Sub-option: instcmds

A list of instant commands that a user is allowed to initiate. Use all to grant all commands automatically.

Sub-option: actions

A list of actions that a user is allowed to perform. Valid actions are:

  • set: change the value of certain variables in the UPS.
  • fsd: set the forced shutdown flag in the UPS. This is equivalent to an "on battery + low battery" situation for the purposes of monitoring.

The list of actions is expected to grow in the future.

Sub-option: upsmon

Add the necessary actions for a upsmon process to work. This is either set to master or slave.

Option: devices

This option allows you to specify a list of UPS devices attached to your system.

Refer to the ups.conf(5) documentation for more information.

Sub-option: name

The name of the UPS. The name default is used internally, so you can’t use it in this file.

Sub-option: driver

This specifies which program will be monitoring this UPS. You need to specify the one that is compatible with your hardware. See nutupsdrv(8) for more information on drivers in general and pointers to the man pages of specific drivers.

Sub-option: port

This is the serial port where the UPS is connected. The first serial port usually is /dev/ttyS0. Use auto to automatically detect the port.

Sub-option: config

A list of additional options to configure for this UPS. The common usbhid-ups driver allows you to distinguish between devices by using a combination of the vendor, product, serial, vendorid, and productid options:

{
  ...
  "devices": [
    {
      "name": "mge",
      "driver": "usbhid-ups",
      "port": "auto",
      "config": [
        "vendorid = 0463"
      ]
    },
    {
      "name": "apcups",
      "driver": "usbhid-ups",
      "port": "auto",
      "config": [
        "vendorid = 051d*"
      ]
    },
    {
      "name": "foocorp",
      "driver": "usbhid-ups",
      "port": "auto",
      "config": [
        "vendor = \"Foo.Corporation.*\""
      ]
    },
    {
      "name": "smartups",
      "driver": "usbhid-ups",
      "port": "auto",
      "config": [
        "product = \".*(Smart|Back)-?UPS.*\""
      ]
    }
  ],
  ...

Option: upsd

A list of configuration options for the upsd server. Most users will only need to use the LISTEN <interface> <port> option.

Refer to the upsd.conf(5) documentation for more information.

Option: nut

A set of configuration options for NUT. It is recommended that you do not change these options unless you know what you are doing.

Refer to the nut.conf(5) documentation for more information.

Sub-option: mode

Recognized values are none, standalone, netserver and netclient.

  • none: Indicates that NUT should not get started automatically, possibly because it is not configured or that an Integrated Power Management or some external system, is used to startup the NUT components.
  • standalone: Addresses a local only configuration, with 1 UPS protecting the local system. This implies to start the 3 NUT layers (driver, upsd and upsmon), with the related configuration files. This mode can also address UPS redundancy.
  • netserver: Like the standalone configuration, but also possibly need one or more specific LISTEN options in upsd section. Since this mode is open to the network, a special care should be applied to security concerns.
  • netclient: When only upsmon is required, possibly because there are other hosts that are more closely attached to the UPS, the mode should be set to netclient.

Sub-option: upsd_options

Set upsd specific options. See upsd(8) for more details. It is ignored when mode above indicates that no upsd should be running.

Sub-option: upsmon_options

Set upsmon specific options. See upsmon(8) for more details. It is ignored when mode above indicates that no upsmon should be running.

Sub-option: poweroff_wait

At the end of an emergency system halt, the upsmon master will signal the UPS to switch off. This may fail for a number of reasons. Most notably is the case that mains power returns during the shutdown process. The system will wait this long for the UPS to cut power, and then reboot. It should be long enough to exhaust the batteries, in case line power continues to be unavailable. On the other hand, it should not be so long that the system remains offline for an unreasonable amount of time if line power has returned. See sleep(1) for compatible time syntax. If you specify the time in seconds, use the s suffix.

Option: i_like_to_be_pwned

Adding this option to the add-on configuration allows to you bypass the HaveIBeenPwned password requirement by setting it to true.

Note: We STRONGLY suggest picking a stronger/safer password instead of using this option! USE AT YOUR OWN RISK!

Option: leave_front_door_open

Adding this option to the add-on configuration allows you to disable authentication on the NUT server by setting it to true and leaving the username and password empty.

Note: We STRONGLY suggest, not to use this, even if this add-on is only exposed to your internal network. USE AT YOUR OWN RISK!

Changelog & Releases

This repository keeps a change log using GitHub's releases functionality. The format of the log is based on Keep a Changelog.

Releases are based on Semantic Versioning, and use the format of MAJOR.MINOR.PATCH. In a nutshell, the version will be incremented based on the following:

  • MAJOR: Incompatible or major changes.
  • MINOR: Backwards-compatible new features and enhancements.
  • PATCH: Backwards-compatible bugfixes and package updates.

Support

Got questions?

You have several options to get them answered:

You could also open an issue here GitHub.

Contributing

This is an active open-source project. We are always open to people who want to use the code or contribute to it.

We have set up a separate document containing our contribution guidelines.

Thank you for being involved! 😍

Authors & contributors

The original setup of this repository is by Dale Higgs.

For a full list of all authors and contributors, check the contributor's page.

We have got some Hass.io add-ons for you

Want some more functionality to your Hass.io Home Assistant instance?

We have created multiple add-ons for Hass.io. For a full list, check out our GitHub Repository.

License

MIT License

Copyright (c) 2018-2019 Dale Higgs

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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