container-selinux is applying a specific label to that location[1]. In
order to avoid conflict and keep things clean, openstack-selinux allows
container_t to manage files and directories with that new container_log_t
context[2].
Note: this patch must NOT be backported to stable/train, but is needed
in stable/wallaby (osp-17) in order to be consistent.
[1] 7e5f3cae10
[2] db6cb8e7f0
Change-Id: Ic0620f2e619730fa47a0b3feb5ca56d934f1416f