Docker fixes for MDS
Docker fixes for MDS

Fixes to make the ceph-mds role work with Docker

Signed-off-by: Daniel Gryniewicz <7c160e8c60410b4d08316c6a35517f4728ce4edb@redhat.com>

verdurin/ceph-ansible-1,ceph/ceph-ansible,bengland2/ceph-ansible,jsaintrocc/ceph-ansible,font/ceph-ansible,WingkaiHo/ceph-ansible,albertomurillo/ceph-ansible,jtaleric/ceph-ansible,jtaleric/ceph-ansible,jsaintrocc/ceph-ansible,fgal/ceph-ansible,ceph/ceph-ansible,fgal/ceph-ansible,guits/ceph-ansible,WingkaiHo/ceph-ansible,bengland2/ceph-ansible,mcsage/ceph-ansible,travmi/ceph-ansible,jfcoz/ceph-ansible,guits/ceph-ansible,mcsage/ceph-ansible,WingkaiHo/ceph-ansible,jfcoz/ceph-ansible,font/ceph-ansible,albertomurillo/ceph-ansible,albertomurillo/ceph-ansible,verdurin/ceph-ansible-1,travmi/ceph-ansible