Docker pull needs become: True

[Saverio Proto]

you need sudo rights to pull docker images.

With the current Kolla code you will get a Permission denied error:

TASK [common : Pulling heka image] *********************************************
fatal: [kollame-4]: FAILED! => {"changed": true, "failed": true, "msg": "'Traceback (most recent call last):\\n File \"/home/ubuntu/.ansible/tmp/ansible-tmp-1485354630.14-53383762059093/kolla_docker\", line 739, in main\\n dw = DockerWorker(module)\\n File \"/home/ubuntu/.ansible/tmp/ansible-tmp-1485354630.14-53383762059093/kolla_docker\", line 213, in __init__\\n self.dc = docker.Client(**options)\\n File \"/usr/local/lib/python2.7/dist-packages/docker/client.py\", line 99, in __init__\\n self._version = self._retrieve_server_version()\\n File \"/usr/local/lib/python2.7/dist-packages/docker/client.py\", line 124, in _retrieve_server_version\\n \\'Error while fetching server API version: {0}\\'.format(e)\\nDockerException: Error while fetching server API version: (\\'Connection aborted.\\', error(13, \\'Permission denied\\'))\\n'"}

[OpenStack Infra (hudson-openstack)]

Change abandoned by Saverio Proto (<email address hidden>) on branch: master
Review: https://review.openstack.org/425215

[Surya Prakash Singh (confisurya)]

Please check again. User can perform the pulling of images.