VSA code redesign. Drive types completely replaced by Volume types

nova/vsa/utils.py

@@ -0,0 +1,80 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright (c) 2011 Zadara Storage Inc.
+# Copyright (c) 2011 OpenStack LLC.
+#
+#    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 base64
+from xml.etree import ElementTree
+
+from nova import flags
+
+FLAGS = flags.FLAGS
+
+
+def generate_user_data(vsa, volumes):
+    SubElement = ElementTree.SubElement
+
+    e_vsa = ElementTree.Element("vsa")
+
+    e_vsa_detail = SubElement(e_vsa, "id")
+    e_vsa_detail.text = str(vsa['id'])
+    e_vsa_detail = SubElement(e_vsa, "name")
+    e_vsa_detail.text = vsa['display_name']
+    e_vsa_detail = SubElement(e_vsa, "description")
+    e_vsa_detail.text = vsa['display_description']
+    e_vsa_detail = SubElement(e_vsa, "vc_count")
+    e_vsa_detail.text = str(vsa['vc_count'])
+
+    e_vsa_detail = SubElement(e_vsa, "auth_user")
+    e_vsa_detail.text = FLAGS.vsa_ec2_user_id
+    e_vsa_detail = SubElement(e_vsa, "auth_access_key")
+    e_vsa_detail.text = FLAGS.vsa_ec2_access_key
+
+    e_volumes = SubElement(e_vsa, "volumes")
+    for volume in volumes:
+
+        loc = volume['provider_location']
+        if loc is None:
+            ip = ''
+            iscsi_iqn = ''
+            iscsi_portal = ''
+        else:
+            (iscsi_target, _sep, iscsi_iqn) = loc.partition(" ")
+            (ip, iscsi_portal) = iscsi_target.split(":", 1)
+
+        e_vol = SubElement(e_volumes, "volume")
+        e_vol_detail = SubElement(e_vol, "id")
+        e_vol_detail.text = str(volume['id'])
+        e_vol_detail = SubElement(e_vol, "name")
+        e_vol_detail.text = volume['name']
+        e_vol_detail = SubElement(e_vol, "display_name")
+        e_vol_detail.text = volume['display_name']
+        e_vol_detail = SubElement(e_vol, "size_gb")
+        e_vol_detail.text = str(volume['size'])
+        e_vol_detail = SubElement(e_vol, "status")
+        e_vol_detail.text = volume['status']
+        e_vol_detail = SubElement(e_vol, "ip")
+        e_vol_detail.text = ip
+        e_vol_detail = SubElement(e_vol, "iscsi_iqn")
+        e_vol_detail.text = iscsi_iqn
+        e_vol_detail = SubElement(e_vol, "iscsi_portal")
+        e_vol_detail.text = iscsi_portal
+        e_vol_detail = SubElement(e_vol, "lun")
+        e_vol_detail.text = '0'
+        e_vol_detail = SubElement(e_vol, "sn_host")
+        e_vol_detail.text = volume['host']
+
+    _xml = ElementTree.tostring(e_vsa)
+    return base64.b64encode(_xml)