adds demo using vagrant

.gitignore

@@ -0,0 +1,2 @@
+/vagrant/.vagrant/
+/vagrant/backup/

README.md

@@ -53,6 +53,19 @@ bash installer.sh --machine MY_MACHINE
 - tinker
 - khadas-vim3
 
+## Demo
+Vagrant can create virtual mashine with the Home Assistant Supervisor. It can be used to play around with Home Assistant.
+All files are kept inside virtual machine besides backup directory. Backup directory is mapped to `vagrant/backup`.
+It can be used to restore Home Assistant after destroying virtual machine.
+
+Installation can be accessed by http://192.168.50.4:8123
+
+
+```bash
+cd vagrant
+vagrant up
+```
+
 ## Troubleshooting
 
 If somethings going wrong, use `journalctl -f` to get your system logs. If you are not familiar with Linux and how you can fix issues, we recommend to use our Home Assistant OS.

vagrant/Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "debian/bullseye64"
+  config.vm.synced_folder "backup", "/usr/share/hassio/backup/", owner: "root",  group: "root", create: true
+  
+  config.vm.provider "virtualbox" do |vb|
+    vb.memory = "2048"
+    vb.cpus = "2"
+    #uncomment those if you need to redirect USB devices
+    # vb.customize ["modifyvm", :id, "--usb", "on"]
+    # vb.customize ["modifyvm", :id, "--usbehci", "on"]
+    #to find vendorid and producctid please use 'VBoxManage list usbhost'
+    # vb.customize ["usbfilter", "add", "0", 
+    #   "--target", :id, 
+    #   "--name", "Zigbee",
+    #   "--vendorid", "0x1a86",
+    #   "--productid", "0x7523"]
+  end
+
+  config.vm.provision :shell, path: "bootstrap.sh"
+  config.vm.network "private_network", ip: "192.168.50.4"
+end

vagrant/bootstrap.sh

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+#!/usr/bin/env bash
+
+apt-get update
+apt-get install -y curl network-manager apparmor docker.io jq
+curl -sLo installer.sh https://raw.githubusercontent.com/home-assistant/supervised-installer/master/installer.sh
+sed -i "s/read answer.*/answer=n/g" installer.sh
+sed -i "/sleep 10/d" installer.sh
+sed -i "s/IP_ADDRESS=.*/IP_ADDRESS=192.168.50.4/g" installer.sh
+sudo bash installer.sh