Running HostMon in Docker 🌱

What is HostMon?

HostMon is a simple web-based host monitor and application dashboard. It can be used to monitor the real-time status of hosts and services running in your homelab environment. In addition to monitoring, HostMon has built-in Wake-On-LAN (WOL) capability, SSH client, real-time ping output and the ability to link to your existing Apache Guacamole installation to remotely control hosts from the within browser.

The HostMon application is written in javascript and uses a SQLite database backend. -

Installing Docker

  1. Log into the Linux based device
  2. Run the following commands in the terminal
    # install prerequisites
    sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg-agent -y
    # add docker gpg key
    curl -fsSL$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | sudo apt-key add -
    # add docker software repository
    sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)]$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
    # install docker
    sudo apt install docker-ce docker-compose -y
    # enable and start docker service
    sudo systemctl enable docker && sudo systemctl start docker
    # add the current user to the docker group
    sudo usermod -aG docker $USER
    # reauthenticate for the new group membership to take effect
    su - $USER

Running HostMon

  1. Now that Docker is installed, run the following commands to setup the HostMon Docker container and run it
    # create working directories
    mkdir ~/docker/hostmon -p
    # set owner of working directories
    sudo chown "$USER":"$USER" ~/docker -R
    # create the hostmon docker container
    docker create -ti --name hostmon i12bretro/hostmon
    # export the hostmon database
    docker cp hostmon:/app/data/hostmon.db ~/docker/hostmon/hostmon.db
    # remove the temporary hostmon container
    docker rm hostmon -f
    # run hostmon with persistent database
    docker run -d --name hostmon -v ~/docker/hostmon:/app/data -p 3000:3000 --restart=unless-stopped i12bretro/hostmon
  2. Open a web browser and navigate to http://DNSorIP:3000
  3. Welcome to HostMon running in Docker