fix ansible/group_vars/all.yml restart/retry policy

[kbaegis]

Settings docker_restart_policy_retry: "10" and docker_restart_policy: "always" should be mutually exclusive on docker 1.12+. This will break the playbook. Either change restart_policy to on-failure (breaks kolla on reboot), or remove restart_policy_retry (breaks kolla on broken container).

[Sajauddin (sajauddin-mohammad)]

docker_restart_policy:"unless-stopped" can be used
unless-stopped -Always restart the container regardless of the exit status, but do not start it on daemon startup if the container has been put to a stopped state before.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/375322

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/375322
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=3f134d0f53067004314fddeb1a77b036c547e45f
Submitter: Jenkins
Branch: master

commit 3f134d0f53067004314fddeb1a77b036c547e45f
Author: Sajauddin Mohammad <email address hidden>
Date: Fri Sep 23 02:25:23 2016 -0400

    Changed docker_restart_policy to unless-stopped

    Current implementation has docker_restart_policy "always" and
    docker_restart_policy_retry:"10" which should be mutually exclusive.
    "unless-stopped" will restart the containers on any exit state
    but not start on daemon startup if container was put to stopped state before.
    Closes-Bug: #1621187

    Change-Id: I4d881cd123a55625121b7a9047385e9b54e2e129

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 3.0.0.0rc2 release candidate.