The problem on the latest version of docker ipc_mode comparison

[wangwei]

In my environment, I was using docker version 1.11.2, and if ipc_mode is not specified in kolla-ansible, then the default is None, as follows:
```
[root@pm-01 ~]# docker inspect ceph_mon | grep Ipc
            "IpcMode": "",
```

But lately I upgraded the docker version to 17.09.0-ce and replaced the storage backend with overlay2, so I used the upgrade command to recreate the ceph container, but then when I deployed a new osd, I found that all the ceph containers have been re-created, this should not happen, then I found the reason is ipc_mode different. In the newer version of docker, if you do not specify ipc_mode, the default value is no longer empty, but the following value:

```
"IpcMode": "shareable",
```

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/541160

[Eduardo Gonzalez (egonzalez90)]

To change storage backend will have to recreate containers again too. Mind sharing a link/commit/something to see the docker change for ip_mode?

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/541160
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=193ce726c242556416556869ed48c86e14b22632
Submitter: Zuul
Branch: master

commit 193ce726c242556416556869ed48c86e14b22632
Author: wangwei <email address hidden>
Date: Tue Feb 6 02:31:10 2018 -0500

    Fix ipc_mode comparison in the latest docker

    In old docker, if you do not specify ipc_mode, the default value is empty,
    but in the latest docker, such as 17.09.0, if not specified, the default
    is "IpcMode": "shareable", which will cause all containers to be deleted
    and re-create when to redeploy or upgrade. This commit solves the
    problem.

    Change-Id: Ia8269b9c8066880e4aee23d6fdea8d9c04c41e44
    Closes-Bug: #1747586

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.openstack.org/559877

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/559879

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/559879
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=ec4cd5b5925affe9b0b817662bb849b172cb97b8
Submitter: Zuul
Branch: stable/pike

commit ec4cd5b5925affe9b0b817662bb849b172cb97b8
Author: wangwei <email address hidden>
Date: Tue Feb 6 02:31:10 2018 -0500

    Fix ipc_mode comparison in the latest docker

    In old docker, if you do not specify ipc_mode, the default value is empty,
    but in the latest docker, such as 17.09.0, if not specified, the default
    is "IpcMode": "shareable", which will cause all containers to be deleted
    and re-create when to redeploy or upgrade. This commit solves the
    problem.

    Change-Id: Ia8269b9c8066880e4aee23d6fdea8d9c04c41e44
    Closes-Bug: #1747586
    (cherry picked from commit 193ce726c242556416556869ed48c86e14b22632)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/559877
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=663142def93dfd79c65164ad412a0ce522b51a27
Submitter: Zuul
Branch: stable/queens

commit 663142def93dfd79c65164ad412a0ce522b51a27
Author: wangwei <email address hidden>
Date: Tue Feb 6 02:31:10 2018 -0500

    Fix ipc_mode comparison in the latest docker

    In old docker, if you do not specify ipc_mode, the default value is empty,
    but in the latest docker, such as 17.09.0, if not specified, the default
    is "IpcMode": "shareable", which will cause all containers to be deleted
    and re-create when to redeploy or upgrade. This commit solves the
    problem.

    Change-Id: Ia8269b9c8066880e4aee23d6fdea8d9c04c41e44
    Closes-Bug: #1747586
    (cherry picked from commit 193ce726c242556416556869ed48c86e14b22632)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/562123

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/562123
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=fa54e2fe74df7b7bacc4ba220fae5b93e6e7d26f
Submitter: Zuul
Branch: stable/ocata

commit fa54e2fe74df7b7bacc4ba220fae5b93e6e7d26f
Author: wangwei <email address hidden>
Date: Tue Feb 6 02:31:10 2018 -0500

    Fix ipc_mode comparison in the latest docker

    In old docker, if you do not specify ipc_mode, the default value is empty,
    but in the latest docker, such as 17.09.0, if not specified, the default
    is "IpcMode": "shareable", which will cause all containers to be deleted
    and re-create when to redeploy or upgrade. This commit solves the
    problem.

    Change-Id: Ia8269b9c8066880e4aee23d6fdea8d9c04c41e44
    Closes-Bug: #1747586
    (cherry picked from commit 193ce726c242556416556869ed48c86e14b22632)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 7.0.0.0b2 development milestone.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 4.0.5 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 6.1.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 5.0.3 release.