cleanup-containers oversensitive to Qemu processes

[Dave Walker]

Currently tools/cleanup-containers has a safety check before touching systems with any processes matching $(pgrep qemu).

This is oversensitive to processes such as qemu-ga and qemu-img which are unrelated to kolla and running outside of docker (or qemu-kvm which happens to be running on the same system, but not kolla controlled)

(qemu-ga [guest agent] could be running on the host system if the system was deployed via something like ovirt).

It would be better if cleanup-containers checked to see if the qemu process was running within a docker container, and therefore within the scope of kolla.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/428061
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=1a54266029b256d451c542be0534fc549bdf72a4
Submitter: Jenkins
Branch: master

commit 1a54266029b256d451c542be0534fc549bdf72a4
Author: Eduardo Gonzalez <email address hidden>
Date: Thu Feb 2 09:49:12 2017 +0000

    Ignore qemu-img process in cleanup-containers

    Change-Id: I059b0aafbf93cf8c131beba47ca6f6718ec5fb36
    Closes-Bug: #1586548

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 4.0.0.0rc1 release candidate.