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source/hassio/run_local.markdown
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@ -1,6 +1,6 @@
---
layout: page
title: "Run local script"
title: "Run local scripts"
description: "Instructions on how-to run local script for Home Assistant."
date: 2017-04-30 13:28
sidebar: true
@ -11,17 +11,17 @@ footer: true
Hass.io is a managed environment. This means that you can install applications that can be embedded into Home Assistant using the `command_line` sensor/switch.
There are two options if you need to run a script to read data from a sensor or send commands to other devices on Hass.IO.
There are two options if you need to run a script to read data from a sensor or send commands to other devices on Hass.io.
First option is to write a custom component for Home Assistant. Using Python you can communicate with your device. For custom component, look at the [developer site][custom-component].
First option is to write a custom component for Home Assistant. Using Python you can communicate with your device. For custom component, take a look at the [developer documentation][custom-component].
The second option is to make a local add-on for Hass.io that sends the data to Home Assistant via MQTT. Before we dive into this, read up on [Hass.io add-on development][addons-tutorial].
The second option is to make a local add-on for Hass.io that sends the data to Home Assistant via MQTT. Before we dive into this, read up on [Hass.io add-on development][addons-tutorial] first.
For security and speed, Hass.io does not provide a way for containers to communicate directly. So the first step is to set up a communication channel. We're going to use MQTT for this using the [MQTT broker add-on][mqtt-addon].
### {% linkable_title Sensors %}
We loop in our script to fetch data and push it to MQTT and wait until next process is ready. Here is a basic example and structure for that process.
We loop in our script to fetch data and push it to MQTT and wait until the next process is ready. Here is a basic example and structure for that process.
Our Dockerfile need to install:
@ -61,7 +61,7 @@ done
### {% linkable_title Commands %}
We wait for incoming data from MQTT broker. We can also use an `input_boolean` that triggers an automation to publish a custom command to MQTT topic that can process multiple things in one add-on.
We wait for incoming data from the MQTT broker. We can also use an `input_boolean` that triggers an automation to publish a custom command to MQTT topic that can process multiple things in one add-on.
Our Dockerfile need to install:
@ -95,7 +95,6 @@ do
done < <(mosquitto_sub -h "$MQTT_SERVER" -p "$MQTT_PORT" -u "$USER" -P "$PASSWORD" -t "$TOPIC" -q 1)
```
[MQTT-addon]: /addons/mosquitto/
[custom-component]: /developers/component_loading/
[addons-tutorial]: /developers/hassio/addon_tutorial/