Update orchestration example with inventory file.

Author: geerlingguy

orchestration/Vagrantfile

@@ -5,6 +5,7 @@ VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.ssh.insert_key = false
+ config.vm.synced_folder ".", "/vagrant", disabled: true
  config.vm.provider :virtualbox do |vb|
  vb.customize ["modifyvm", :id, "--memory", "256"]
  end

orchestration/inventory

@@ -0,0 +1,18 @@
+# Application servers
+[app]
+192.168.60.4
+192.168.60.5
+
+# Database server
+[db]
+192.168.60.6
+
+# Group 'multi' with all servers
+[multi:children]
+app
+db
+
+# Variables that will be applied to all servers
+[multi:vars]
+ansible_ssh_user=vagrant
+ansible_ssh_private_key_file=~/.vagrant.d/insecure_private_key