purge: fix bug on 'wait_for' task
purge: fix bug on 'wait_for' task

this task hangs because `{{ inventory_hostname }}` doesn't resolv to an
actual ip address.
Using `hostvars[inventory_hostname]['ansible_default_ipv4']['address']`
should fix this because it will reach the node with its actual IP
address.

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>

font/ceph-ansible,ceph/ceph-ansible,travmi/ceph-ansible,travmi/ceph-ansible,fgal/ceph-ansible,fgal/ceph-ansible,font/ceph-ansible,ceph/ceph-ansible