Add ansible provisioning (#122)

* first ansible skeleton

* first commit of ansible installation of vulnwhisperer outside docker

* first ansible skeleton

* first commit of ansible installation of vulnwhisperer outside docker

* refactor the ansible role a bit

* update readme, add fail validation step to provision.yml and fix
typo when calling a logging funciton

ansible/roles/elastic.elasticsearch/test/integration/xpack-upgrade/serverspec/default_spec.rb

@@ -0,0 +1,9 @@
+require 'xpack_upgrade_spec'
+require 'shared_spec'
+require 'json'
+vars = JSON.parse(File.read('/tmp/vars.json'))
+
+describe 'Xpack upgrade Tests' do
+  include_examples 'shared::init', vars
+  include_examples 'xpack_upgrade::init', vars
+end