Control Docker containers from Home Assistant using Monitor Docker

Disclosure: This post contains affiliate links. If you click through and make a purchase, I will earn a commission, at no additional cost to you. Read my full disclosure here.

An illustration of a dock with ships. Cranes are removing containers from the ships.

At the heart of many smart homes lies Home Assistant, a powerful platform that brings together various smart devices and services. For those utilizing Home Assistant within a Docker environment, there's an indispensable tool that enhances this experience - Monitor Docker. This article delves into how Monitor Docker, a custom component for Home Assistant, transforms the way Docker containers are managed, making the oversight of your smart home system both intuitive and robust. Whether you're a seasoned Home Assistant enthusiast or new to the realm of smart home automation, understanding the synergy between Docker containers and Home Assistant through Monitor Docker will elevate your control and insight into your smart home setup.


Understanding Docker Containers

Before delving into the nuances of container monitoring in Home Assistant, it's essential to understand what Docker and containers are. Docker, an innovative open-source platform, facilitates the development, deployment, and running of applications using containerization. Containers are lightweight, self-sufficient packages that encapsulate everything necessary for running an application - code, runtime, libraries, and settings. This isolation ensures consistent performance across diverse environments, making Docker a cornerstone in modern software deployment.

In a smart home context, like that managed by Home Assistant, monitoring these Docker containers is crucial. It enables users to ensure seamless operation and quick troubleshooting of various smart services and devices interconnected within the system. Now, with Monitor Docker, users of Home Assistant can enjoy a more streamlined and efficient monitoring process.

Why Choose Monitor Docker?

Monitor Docker emerges as a superior tool, especially for those running Home Assistant Core in a Docker environment. It builds upon the capabilities of its predecessor, HA Dockermon, which, despite being functional, hasn't seen updates since September 2019. Monitor Docker stands out for several reasons:

However, it's worth noting that Monitor Docker does not support shell commands for restarting Docker containers, including Home Assistant Core, unlike HA Dockermon.

The Functional Spectrum of Monitor Docker

With Monitor Docker, users gain a transparent view of all Docker containers, including status and uptime. This is instrumental in troubleshooting and setting up scripts for container management, enhancing the overall stability of the Home Assistant ecosystem.

Simplified Installation Process

Installing Monitor Docker is hassle-free, especially when done through HACS (Home Assistant Community Store), ensuring easy updates. For those preferring manual installation, steps are straightforward but require manual updates.

A screenshot showing the installation of Monitor Docker in the Home Assistant Community Store

Configuring the Home Assistant Docker Container

To integrate Monitor Docker with Home Assistant running in a Docker container, users need to mount the Docker daemon as follows:

For Docker:

-v /var/run/docker.sock:/var/run/docker.sock

For Docker Compose:

      - /var/run/docker.sock:/var/run/docker.sock

Subsequent steps involve editing the Docker Compose file and executing commands to update and build the Home Assistant container.

Customizable Monitoring Configuration

Configuring Monitor Docker is done via YAML in the configuration.yaml file of Home Assistant. Users can tailor their monitoring settings to include specific containers or rename them for better management. Detailed instructions and additional configuration examples are available on the Monitor Docker GitHub page.

  - name: Docker
      - version
      - containers_running
      - containers_total
      - containers_cpu_percentage
      - containers_memory
      - containers_memory_percentage
      - state
      - status
      - memory
      - memory_percentage

Seamless Integration and Control

Post-configuration, Monitor Docker allows Home Assistant users to seamlessly integrate container monitoring into their smart home setup. This includes creating easy-to-access switches and sensors for each container, which can be incorporated into the Home Assistant Dashboard for efficient automation and script control.

Home Assistant Monitor Docker 03
Home Assistant Monitor Docker 02
A portrait photo oif Liam Alexander Colman, the author, creator, and owner of Home Assistant Guide wearing a suit.

About Liam Alexander Colman

is an experienced Home Assistant user who has been utilizing the platform for a variety of projects over an extended period. His journey began with a Raspberry Pi, which quickly grew to three Raspberry Pis and eventually a full-fledged server. Liam's current operating system of choice is Unraid, with Home Assistant comfortably running in a Docker container.
With a deep understanding of the intricacies of Home Assistant, Liam has an impressive setup, consisting of various Zigbee devices, and seamless integrations with existing products such as his Android TV box. For those interested in learning more about Liam's experience with Home Assistant, he shares his insights on how he first started using the platform and his subsequent journey.

Leave a comment

Share to...