Kuryr ignores namespaces

[Michal Dulko]

Kuryr uses pod names to distinguish pods. Turns out we can have multiple pods with the same name in different namespaces. Kuryr needs to take that into account.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/548313

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/548313
Committed: https://git.openstack.org/cgit/openstack/kuryr-kubernetes/commit/?id=7061f4abac6d27c3b68dd6b55c6a3b0095f4b2c9
Submitter: Zuul
Branch: master

commit 7061f4abac6d27c3b68dd6b55c6a3b0095f4b2c9
Author: Luis Tomas Bolivar <email address hidden>
Date: Tue Feb 27 14:46:40 2018 +0000

    Make CNI Registry Plugin namespace aware

    As with the k8sCNIRegistryPlugin the watching is for the
    complete node, instead of per pod and namespace, we need
    to make registry information to account for the namespace
    where the pod is created to differentiate between different
    containers running on the same node, with the same name, but
    in a different namespace

    Related-Bug: 1731486
    Change-Id: I26e1dec6ae613c5316a45f93563c4a015df59441