Comment 5 for bug 1702765

Reviewed: https://review.openstack.org/481456
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=d8a74de787cc8c97547cdd08242d6eb6b27b1fad
Submitter: Jenkins
Branch: master

commit d8a74de787cc8c97547cdd08242d6eb6b27b1fad
Author: Alfredo Moralejo <email address hidden>
Date: Fri Jul 7 08:33:48 2017 +0200

    Set version=auto when creating docker client

    When creating a docker client using docker library, version
    1.26.0 of docker api is used by default, however the version
    of docker included in CentOS 7 is currently 1.24.0. Using
    version='auto', the client detects the api version in the
    server and uses it.

    This change sets version to 'auto' so that is automatically
    detected as kolla [1] and others do.

    Closes-Bug: #1702765

    [1] https://github.com/openstack/kolla/blob/master/kolla/image/build.py#L135

    Change-Id: I36d5316ac5244c227f6e9913a58d4fde1c2b1518