first time user - having ssh eror while trying to run a playbook

Greetings,
For my first time use of Ansible, I have attempted to run a playbook, which installs OpenStack to a local computer.
My target computer has a fresh Fedora 20 install, is all up to date, and has an IP of 10.0.0.32
The computer, from which I ran this playbook is a Ubuntu 14 VM, and has an IP of 10.0.0.50.
A regular command line ssh from Ubunti to Fedora works fine.
my hosts file contents:

[noclab]
10.0.0.32

[gluster_loopback]
10.0.0.32

[gluster_master]
10.0.0.32

[gluster_nodes]
10.0.0.32

[openstack_controller]
10.0.0.32

[openstack_keystone]
10.0.0.32

[openstack_glance]
10.0.0.32

[openstack_cinder]
10.0.0.32

[openstack_neutron]
10.0.0.32

[openstack_neutron_l3]
10.0.0.32

[openstack_neutron_dhcp]
10.0.0.32

[openstack_neutron_meta]
10.0.0.32

[openstack_horizon]
10.0.0.32

[openstack_heat]
10.0.0.32

[openstack_trove]
10.0.0.32

[openstack_compute]
10.0.0.32

[swift_proxy_nodes]
10.0.0.32

[swift_storage_nodes]
10.0.0.32

[nfs_nodes]
10.0.0.32

My site.yml file contents: