Allow the usage of local facts

Ansible could be used with local facts, but we don't create
the ansible local facts folder by default.

This makes possible to use local facts, with no downside.

Change-Id: Ie4a47e85bf31e1ac3a2bd6f0dec510bb24abdbbd

vars/redhat-7.yml

@@ -45,6 +45,7 @@ lxc_cache_map:
     - /etc/localtime
   cache_prep_commands: |
     {{ lxc_cache_prep_pre_commands }}
+    mkdir -p /etc/ansible/facts.d/
     if [ -a /etc/resolv.conf ]; then
       mv /etc/resolv.conf /etc/resolv.conf.org
     fi

vars/ubuntu-16.04.yml

@@ -51,6 +51,7 @@ lxc_cache_map:
     - /root/repo.keys
   cache_prep_commands: |
     {{ lxc_cache_prep_pre_commands }}
+    mkdir -p /etc/ansible/facts.d/
     if [ -a /etc/resolv.conf ]; then
       mv /etc/resolv.conf /etc/resolv.conf.org
     fi