Single VM: Fix a ceph related disk space leak
Single VM: Fix a ceph related disk space leak

The ceph-demo docker container creates a new volume each time the container
is started.  This volume needs to be explicitly deleted.  It does not get
deleted when the container is deleted.  Overtime, this can lead to a
substantial waste of disk space.  This commit tells docker to delete the
volume created by the ceph-demo container when it itself is deleted.

Signed-off-by: Mark Ryan <f16215f7acd0bd7fdc465539215bd574c785b062@intel.com>

matthewrsj/ciao,mrkz/ciao,mcastelino/ciao,wcwxyz/ciao,ciao-project/ciao,kaccardi/ciao,rbradford/ciao,erick0z/ciao,jorgevgut/ciao,01org/ciao,wcwxyz/ciao,jorgevgut/ciao,obedmr/ciao,markdryan/ciao,kaccardi/ciao,rbradford/ciao,mcastelino/ciao,erick0z/ciao,matthewrsj/ciao,mrkz/ciao,mrkz/ciao,matthewrsj/ciao,jorgevgut/ciao,wcwxyz/ciao,erick0z/ciao,markdryan/ciao,01org/ciao,mcastelino/ciao,tpepper/ciao,ciao-project/ciao,obedmr/ciao,tpepper/ciao,tpepper/ciao,obedmr/ciao