[vagrant,inventory] add new ubuntu server machine for next step in book

Vagrantfile

@@ -43,3 +43,20 @@ Vagrant.configure("2") do |config|
     app.vm.network :forwarded_port, guest: 22, host: 2202, id: 'ssh'
   end
 end
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "gusztavvargadr/ubuntu-server"
+  config.ssh.insert_key = false
+  config.vm.synced_folder "." "/vagrant", disabled: true
+
+  config.vm.provider :virtualbox do |v|
+    v.memory = 512
+    v.linked_clone = true
+  end
+
+  config.vm.define "ubu" do |app|
+    app.vm.hostname = "ubu.test"
+    app.vm.network :private_network, ip: "192.168.60.8"
+    app.vm.network :forwarded_port, guest: 22, host: 2203, id: 'ssh'
+  end
+end