Directory /home/ansible/.ansible and file /var/log/kolla/ansible.log are
not created by default in toolbox image, so when ceph enabled, the directory
and file will be created with user 'root' instead of user 'ansible' after
running bootstrap osds because it using sudo when bootstraping osds,
this will cause permission denied issue for other commands not using sudo.
Fixes this issue by initializing ansible by running 'ansible localhost
--version' using user 'ansible'
TrivialFix
Change-Id: Ibac3f98b3b72cbe287ee1d3a69ed9cea7ae3cd9e
54be45e406