Ensure ansible.log accesses are locked
Ensure ansible.log accesses are locked

This patch is the "master" version for change I024ff0a23823adfa2a2d354d44c7949df1f123da

Even if this code isn't used for sensitive runs anymore, making things
right and consistent is always good.

Change-Id: Ica1b5c0a165cc06fac668513114eef2b4ba73f56
Related-Bug: #1918138

openstack/tripleo-common,openstack/tripleo-common