Rework nova modules and states

Closes-issue: https://mirantis.jira.com/browse/PROD-20787
Change-Id: If9ea6ff8c53c876e678180c3df3792d198df2ec0
diff --git a/_modules/novav21/servers.py b/_modules/novav21/servers.py
new file mode 100644
index 0000000..6606c3e
--- /dev/null
+++ b/_modules/novav21/servers.py
@@ -0,0 +1,89 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import six.moves.urllib.parse as urllib_parse
+
+import common
+
+# Function alias to not shadow built-ins
+__func_alias__ = {
+    'list_': 'list'
+}
+
+
+@common.send('get')
+def list_(**kwargs):
+    """Return list of servers."""
+    url = '/servers?{}'.format(urllib_parse.urlencode(kwargs))
+    return url, {}
+
+
+@common.send('post')
+def create(name, flavor, **kwargs):
+    """Create server(s)."""
+    # TODO: add something useful :)
+    url = '/servers'
+    req = {'server': {'name': name, 'flavor': flavor}}
+    req['server'].update(kwargs)
+    return url, {'json': req}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('delete')
+def delete(server_id, **kwargs):
+    """Delete server."""
+    url = '/servers/{server_id}'.format(server_id=server_id)
+    return url, {}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('get')
+def get(server_id, **kwargs):
+    """Return one server."""
+    url = '/servers/{server_id}'.format(server_id=server_id)
+    return url, {}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('post')
+def lock(server_id, **kwargs):
+    """Lock server."""
+    url = '/servers/{server_id}/action'.format(server_id=server_id)
+    req = {"lock": None}
+    return url, {"json": req}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('post')
+def resume(server_id, **kwargs):
+    """Resume server after suspend."""
+    url = '/servers/{server_id}/action'.format(server_id=server_id)
+    req = {"resume": None}
+    return url, {"json": req}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('post')
+def suspend(server_id, **kwargs):
+    """Suspend server."""
+    url = '/servers/{server_id}/action'.format(server_id=server_id)
+    req = {"suspend": None}
+    return url, {"json": req}
+
+
+@common.get_by_name_or_uuid(list_, 'servers')
+@common.send('post')
+def unlock(server_id, **kwargs):
+    """Unlock server."""
+    url = '/servers/{server_id}/action'.format(server_id=server_id)
+    req = {"unlock": None}
+    return url, {"json": req}