Specify endpoint when creating monasca user

otherwise I'm seeing:

TASK [monasca : Creating the monasca agent user] ****************************************************************************************************************************
fatal: [monitor1]: FAILED! => {"changed": false, "module_stderr": "Shared connection to 172.16.3.24 closed.\r\n", "module_stdout": "Traceback (most recent call last):\r\n  F
ile \"/tmp/ansible_I0RmxQ/ansible_module_kolla_toolbox.py\", line 163, in <module>\r\n    main()\r\n  File \"/tmp/ansible_I0RmxQ/ansible_module_kolla_toolbox.py\", line 141,
 in main\r\n    output = client.exec_start(job)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/utils/decorators.py\", line 19, in wrapped\r\n
    return f(self, resource_id, *args, **kwargs)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/api/exec_api.py\", line 165, in exec_start\r\
n    return self._read_from_socket(res, stream, tty)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/api/client.py\", line 377, in _read_from_
socket\r\n    return six.binary_type().join(gen)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/utils/socket.py\", line 75, in frames_iter\r\
n    n = next_frame_size(socket)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/utils/socket.py\", line 62, in next_frame_size\r\n    data = read_exactly(socket, 8)\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/utils/socket.py\", line 47, in read_exactly\r\n    next_data = read(socket, n - len(data))\r\n  File \"/opt/kayobe/venvs/kolla-ansible/lib/python2.7/site-packages/docker/utils/socket.py\", line 31, in read\r\n    return socket.recv(n)\r\nsocket.timeout: timed out\r\n", "msg": "MODULE FAILURE", "rc": 1}

when the monitoring nodes aren't on the public API network.

Change-Id: I7a93f69da0e02c9264da0b081d2e60626f899e3a

ansible/roles/monasca/tasks/register.yml

@@ -80,4 +80,5 @@
       role: "{{ monasca_agent_authorized_roles | first }}"
       region_name: "{{ openstack_region_name }}"
       auth: "{{ monasca_openstack_auth }}"
+      endpoint_type: "{{ openstack_interface }}"
   run_once: True