Home Assistant Add-on .NET App Mqtt Project Template

Project template for developing a Home Assistant add-on in C# .
Application to deliver device and sensor to MQTT integration

How to install add-on

There are three different methods

1. Use Docker images registered in GitHub Container Registory
   1. Copy /_from_ghcr.io (config.yaml only) to HA-OS (/addons/example-mqtt)
2. .NET apps pre-compiled and then build a Docker image on HA-OS
   1. Run ./_compile_self/dotnet_publish.ps1.
   2. Copy /_compile_self to HA-OS (/addons/example-mqtt)
3. .NET apps at the same time as building Docker images on HA-OS
   1. Copy src and /_build_on_haos to HA-OS (/addons/example-mqtt)
   2. If the HA-OS machine is not powerful, the build (& installation) will take a very long time.
      (At RasPi3B+, it takes more than 30 minutes.)Not recommended.

Build Docker image and register for GitHub Container Registory

./_compile_self/dotnet_publish.ps1

docker build `
  "./_compile_self" `
  -t ghcr.io/EXAMPLE_GIT_HUB_USER/examplemqtt-aarch64:1.0.2 `
  --build-arg BUILD_FROM="homeassistant/aarch64-base:latest" `
  --build-arg BUILD_ARCH="aarch64" `
  --progress=plain `
  --label org.opencontainers.image.source=https://github.com/EXAMPLE_GIT_HUB_USER/examplemqtt-mqtt

docker build `
  "./_compile_self" `
  -t ghcr.io/EXAMPLE_GIT_HUB_USER/examplemqtt-amd64:1.0.2 `
  --build-arg BUILD_FROM="homeassistant/amd64-base:latest" `
  --build-arg BUILD_ARCH="amd64" `
  --progress=plain `
  --label org.opencontainers.image.source=https://github.com/EXAMPLE_GIT_HUB_USER/examplemqtt-mqtt

echo EXAMPLE_GIT_HUB_PERSONAL_ACCESS_TOKEN | docker login ghcr.io -u EXAMPLE_GIT_HUB_USER --password-stdin
docker push ghcr.io/EXAMPLE_GIT_HUB_USER/examplemqtt-aarch64:1.0.2
docker push ghcr.io/EXAMPLE_GIT_HUB_USER/examplemqtt-amd64:1.0.2

Options

Key	Default	Description
Interval	00:01:10	TimeSpan(HH:mm:ss)
Mqtt:UseAutoConfig	true	Add-on users using the default Home Assistant Mosquitto integration can set this value to True, as connection details can be detected via the Home Assistant Supervisor API.
Mqtt:Host	-
Mqtt:Port	-
Mqtt:Id	-
Mqtt:Pw	-
Mqtt:Tls	-
LogLevel	Trace	Trace,Debug,Information,Warning,Error,Critical,None

Information for developers (& run outside of add-ons)

• This add-on simply brings the .NET runtime into the Home Assistant base image and launches the .NET console application.
• The application itself can be run on Windows.
  • The sln file can be opened in VisualStudio and debugged.
  • On Windows, you probably do not have access to the add-on configuration file(/data/options.json), so configure them in appsettings.Development.json instead.
  • Can also be configured from environment variables and command line arguments.
    See. .NET Generic Host Default builder settings

Home Assistant Images