hassio-install.sh

#!/usr/bin/env bash
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## THIS SCRIPT SHOULD ONLY BE RUN ON GENERIC LINUX       ##
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set -o errexit  # Exit script when a command exits with non-zero status
set -o errtrace # Exit on error inside any functions or sub-shells
set -o nounset  # Exit script on use of an undefined variable
set -o pipefail # Return exit status of the last command in the pipe that failed

# ==============================================================================
# GLOBALS
# ==============================================================================
readonly HASSIO_INSTALLER="https://raw.githubusercontent.com/home-assistant/hassio-build/master/install/hassio_install"
readonly REQUIREMENTS=(
  apparmor-utils
  apt-transport-https
  avahi-daemon
  ca-certificates
  curl
  dbus
  jq
  network-manager
  socat
  software-properties-common
)

# ==============================================================================
# SCRIPT LOGIC
# ==============================================================================

# ------------------------------------------------------------------------------
# Installs all required software packages and tools
# ------------------------------------------------------------------------------
install_requirements() {
  echo "Updating APT packages list..."
  apt-get update

  echo "Ensure all requirements are installed..."
  apt-get install -y "${REQUIREMENTS[@]}"
}

# ------------------------------------------------------------------------------
# Installs the Docker engine
# ------------------------------------------------------------------------------
install_docker() {
  echo "Installing Docker..."
  curl -sSL https://get.docker.com | sh
}

# ------------------------------------------------------------------------------
# Installs and starts Hass.io
# ------------------------------------------------------------------------------
install_hassio() {
  echo "Installing Hass.io..."
  curl -sL "${HASSIO_INSTALLER}" | bash -s
}

# ==============================================================================
# RUN LOGIC
# ------------------------------------------------------------------------------
main() {
  # Are we root?
  if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root."
    echo "Please try again after running:"
    echo "  sudo su"
    exit 1
  fi

  # Install ALL THE THINGS!
  install_requirements
  install_docker
  install_hassio

  # Friendly closing message
  ip_addr=$(hostname -I | cut -d ' ' -f1)
  echo "======================================================================="
  echo "Hass.io is now installing Home Assistant."
  echo "This process may take up to 20 minutes. Please visit:"
  echo "http://${HOSTNAME}.local:8123/ in your browser and wait"
  echo "for Home Assistant to load."
  echo "If the previous URL does not work, please try http://${ip_addr}:8123/"

  exit 0
}
main