Created attachment 1142373 [details]
output of command

Description of problem:
=======================
cluster creation is failing at below task

TASK: [ceph.ceph-common | create ceph conf directory] ************************* 
<magna048> REMOTE_MODULE file mode=0755 group=ceph state=directory path=/etc/ceph owner=ceph
failed: [magna048] => {"failed": true, "gid": 0, "group": "root", "mode": "0755", "owner": "root", "path": "/etc/ceph", "secontext": "system_u:object_r:etc_t:s0", "size": 4096, "state": "directory", "uid": 0}
msg: chown failed: failed to look up user ceph

FATAL: all hosts have already failed -- aborting



Version-Release number of selected component (if applicable):
=============================================================
ceph-ansible-1.0.3-1.el7.noarch



How reproducible:
================
always


Steps to Reproduce:
===================
1.install ceph-ansible-1.0.3-1.el7.noarch on installer node
2. enable passwordless ssh from insaller to all node in cluster
3. create host file.
4. disable selinux on all node and create ceph repo file
5. run following from installer node

 ansible-playbook site.yml -vv /etc/ansible/hosts  --extra-vars '{"ceph_stable": true, "ceph_origin": "distro", "ceph_stable_rh_storage": true,"monitor_interface": <interface>, "journal_collocation": true, "devices": ["/dev/sdb"], "journal_size": 100, "public_network": "<subnet mask>"}' -u root


Actual results:
===============
TASK: [ceph.ceph-common | create ceph conf directory] ************************* 
<magna048> REMOTE_MODULE file mode=0755 group=ceph state=directory path=/etc/ceph owner=ceph
failed: [magna048] => {"failed": true, "gid": 0, "group": "root", "mode": "0755", "owner": "root", "path": "/etc/ceph", "secontext": "system_u:object_r:etc_t:s0", "size": 4096, "state": "directory", "uid": 0}
msg: chown failed: failed to look up user ceph

FATAL: all hosts have already failed -- aborting

PLAY RECAP ******************************************************************** 
           to retry, use: --limit @/root/site.retry

magna048                   : ok=38   changed=1    unreachable=0    failed=1   


Expected results:
==================
It should install ceph on cluster


Additional info:
================
complete output of command is attached to bug