extend tools/cleanup-containers to support regex of container to remove

[sean mooney]

when developing with kolla it is sometime useful to cleanup a set of related containers.

currently the tools/cleanup-containers script removes all deployed kolla containers.
this rfe bug request proposes extending the script to take a grep extended regex as an option first argument

for example running
tools/cleanup-containers "neutron|openvswitch"

would cleanup only the container containing neutron or openvswitch in their name.

running tools/cleanup-containers with no arguments would revert to the current behavior of cleaning up
all containers.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/252667

[sean mooney (sean-k-mooney)]

this is just a nice to have but it will stop me typeing
for ct in $(docker ps | grep -E "neutron|openvswitch" | awk '{print $1}'); do docker stop $ct; docker rm $ct; done
every time i want to cleanup a set of related containers.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/252667
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=2ffb35ee5308ece3717263d38163e5fd9b29a3ae
Submitter: Jenkins
Branch: master

commit 2ffb35ee5308ece3717263d38163e5fd9b29a3ae
Author: Sean Mooney <email address hidden>
Date: Wed Dec 2 22:54:52 2015 +0000

    adds tools/cleanup-containers regex support

    - this change extends the tools/cleanup-containers script to
      support a grep extended regex as a first paramater.
    - if tools/cleanup-containers is called with a grep extended
      regex string as a first paramater, only containers mataching
      that regex will be cleaned up.
    - e.g. tools/cleanup-containers "neutron|openvswitch"
      will cleanup all container whoes name contains either neutron
      or openvswitch.

    Change-Id: Iadb68c0a8de40e9ec2c0a27568e3a372ec0e8303
    Closes-Bug: #1522168