Move registration from newton to newton_base

Change-Id: Ia9436fc1e0682bca8ed38193f234f8020ff34ace
Issue-ID: MULTICLOUD-138
Signed-off-by: Huang Haibin <haibin.huang@intel.com>

2 files changed, 709 insertions, 0 deletions

diff --git a/share/newton_base/registration/__init__.py b/share/newton_base/registration/__init__.py
new file mode 100644
index 00000000..802f3fba
--- /dev/null
+++ b/share/newton_base/registration/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2017 Wind River Systems, Inc.
+#
+# 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.
diff --git a/share/newton_base/registration/registration.py b/share/newton_base/registration/registration.py
new file mode 100644
index 00000000..d9ce713d
--- /dev/null
+++ b/share/newton_base/registration/registration.py
@@ -0,0 +1,699 @@
+# Copyright (c) 2017 Wind River Systems, Inc.
+#
+# 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 logging
+import json
+import traceback
+
+from keystoneauth1.exceptions import HttpError
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from newton.pub.config import config
+from newton.pub.exceptions import VimDriverNewtonException
+from newton.pub.msapi import extsys
+from newton.pub.utils import restcall
+from newton.requests.views.util import VimDriverUtils
+
+logger = logging.getLogger(__name__)
+
+
+class Registry(APIView):
+
+    def __init__(self):
+        self.proxy_prefix = "multicloud"
+        self.aai_base_url = "127.0.0.1"
+        self._logger = logger
+
+    def _get_list_resources(
+            self, resource_url, service_type, session, viminfo,
+            vimid, content_key):
+        service = {'service_type': service_type,
+                   'interface': 'public',
+                   'region_id': viminfo['cloud_region_id']}
+        resp = session.get(resource_url, endpoint_filter=service)
+        content = resp.json()
+
+        self._logger.debug("vimid: %s, req: %s,resp code: %s, body: %s"
+                           % (vimid, resource_url, resp.status_code,content))
+
+        if resp.status_code != status.HTTP_200_OK:
+            return  # failed to discover resources
+        return content.get(content_key)
+
+    def _update_resoure(self, cloud_owner, cloud_region_id,
+                        resoure_id, resource_info, resource_type):
+        if cloud_owner and cloud_region_id:
+            self._logger.debug(
+                ("_update_resoure,vimid:%(cloud_owner)s"
+                 "_%(cloud_region_id)s req_to_aai: %(resoure_id)s, "
+                 "%(resource_type)s, %(resource_info)s")
+                % {
+                    "cloud_owner": cloud_owner,
+                    "cloud_region_id": cloud_region_id,
+                    "resoure_id": resoure_id,
+                    "resource_type": resource_type,
+                    "resource_info": resource_info,
+                })
+
+            #get the resource first
+            resource_url = ("/cloud-infrastructure/cloud-regions/"
+                     "cloud-region/%(cloud_owner)s/%(cloud_region_id)s/"
+                     "%(resource_type)ss/%(resource_type)s/%(resoure_id)s"
+                     % {
+                         "cloud_owner": cloud_owner,
+                         "cloud_region_id": cloud_region_id,
+                         "resoure_id": resoure_id,
+                         "resource_type": resource_type,
+                     })
+
+            # get cloud-region
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "GET")
+
+            # add resource-version
+            if retcode == 0 and content:
+                content = json.JSONDecoder().decode(content)
+                #resource_info["resource-version"] = content["resource-version"]
+                content.update(resource_info)
+                resource_info = content
+
+            #then update the resource
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "PUT", content=resource_info)
+
+            self._logger.debug(
+                ("_update_resoure,vimid:%(cloud_owner)s"
+                 "_%(cloud_region_id)s req_to_aai: %(resoure_id)s, "
+                 "return %(retcode)s, %(content)s, %(status_code)s")
+                % {
+                    "cloud_owner": cloud_owner,
+                    "cloud_region_id": cloud_region_id,
+                    "resoure_id": resoure_id,
+                    "retcode": retcode,
+                    "content": content,
+                    "status_code": status_code,
+                })
+            return retcode
+        return 1  # unknown cloud owner,region_id
+
+    def _discover_tenants(self, vimid="", session=None, viminfo=None):
+        try:
+            # iterate all projects and populate them into AAI
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for tenant in self._get_list_resources(
+                    "projects", "identity", session, viminfo, vimid,
+                    "projects"):
+                tenant_info = {
+                    'tenant-id': tenant['id'],
+                    'tenant-name': tenant['name'],
+                }
+                self._update_resoure(
+                    cloud_owner, cloud_region_id, tenant['id'],
+                    tenant_info, "tenant")
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    def _discover_flavors(self, vimid="", session=None, viminfo=None):
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for flavor in self._get_list_resources(
+                    "/flavors/detail", "compute", session, viminfo, vimid,
+                    "flavors"):
+                flavor_info = {
+                    'flavor-id': flavor['id'],
+                    'flavor-name': flavor['name'],
+                    'flavor-vcpus': flavor['vcpus'],
+                    'flavor-ram': flavor['ram'],
+                    'flavor-disk': flavor['disk'],
+                    'flavor-ephemeral': flavor['OS-FLV-EXT-DATA:ephemeral'],
+                    'flavor-swap': flavor['swap'],
+                    'flavor-is-public': flavor['os-flavor-access:is_public'],
+                    'flavor-disabled': flavor['OS-FLV-DISABLED:disabled'],
+                }
+
+                if flavor.get('link') and len(flavor['link']) > 0:
+                    flavor_info['flavor-selflink'] = flavor['link'][0]['href'] or 'http://0.0.0.0',
+                else:
+                    flavor_info['flavor-selflink'] = 'http://0.0.0.0',
+
+                self._update_resoure(
+                    cloud_owner, cloud_region_id, flavor['id'],
+                    flavor_info, "flavor")
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    # def update_image_metadata(self, cloud_owner, cloud_region_id, image_id, metadatainfo):
+    #     '''
+    #     populate image meta data
+    #     :param cloud_owner:
+    #     :param cloud_region_id:
+    #     :param image_id:
+    #     :param metadatainfo:
+    #         metaname: string
+    #         metaval: string
+    #     :return:
+    #     '''
+    #
+    #     if cloud_owner and cloud_region_id:
+    #         retcode, content, status_code = \
+    #             restcall.req_to_aai(
+    #                 "/cloud-infrastructure/cloud-regions/cloud-region"
+    #                 + "/%s/%s/images/image/%s/metadata/metadatum/%s"
+    #                 % (cloud_owner, cloud_region_id, image_id, metadatainfo['metaname']),
+    #                 "PUT", content=metadatainfo)
+    #
+    #         self._logger.debug("update_image,vimid:%s_%s req_to_aai: %s/%s, return %s, %s, %s"
+    #                            % (cloud_owner,cloud_region_id,image_id,metadatainfo['metaname'],
+    #                               retcode, content, status_code))
+    #         return retcode
+    #     return 1
+
+    def _discover_images(self, vimid="", session=None, viminfo=None):
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for image in self._get_list_resources(
+                    "/v2/images", "image", session, viminfo, vimid,
+                    "images"):
+                image_info = {
+                    'image-id': image['id'],
+                    'image-name': image['name'],
+                    'image-selflink': image['self'],
+
+                    'image-os-distro': image.get('os_distro') or 'Unknown',
+                    'image-os-version': image.get('os_version') or 'Unknown',
+                    'application': image.get('application'),
+                    'application-vendor': image.get('application_vendor'),
+                    'application-version': image.get('application_version'),
+                    'image-architecture': image.get('architecture'),
+                }
+
+                ret = self._update_resoure(
+                    cloud_owner, cloud_region_id, image['id'], image_info,
+                    "image")
+                if ret != 0:
+                    # failed to update image
+                    self._logger.debug("failed to populate image info into AAI: %s, image id: %s, ret:%s"
+                                       % (vimid, image_info['image-id'], ret))
+                    continue
+
+                schema = image['schema']
+                if schema:
+                    req_resource = schema
+                    service = {'service_type': "image",
+                               'interface': 'public',
+                               'region_id': viminfo['cloud_region_id']}
+                    resp = session.get(req_resource, endpoint_filter=service)
+                    content = resp.json()
+
+                    self._logger.debug("vimid: %s, req: %s,resp code: %s, body: %s"
+                                       % (vimid, req_resource, resp.status_code, content))
+                    # if resp.status_code == status.HTTP_200_OK:
+                        # parse the schema? TBD
+                        # self.update_image(cloud_owner, cloud_region_id, image_info)
+                        #metadata_info = {}
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    def _discover_availability_zones(self, vimid="", session=None,
+                                     viminfo=None):
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for az in self._get_list_resources(
+                    "/os-availability-zone/detail", "compute", session,
+                    viminfo, vimid,
+                    "availabilityZoneInfo"):
+                az_info = {
+                    'availability-zone-name': az['zoneName'],
+                    'operational-status': az['zoneState']['available']
+                    if az.get('zoneState') else '',
+                    'hypervisor-type': '',
+                }
+                if az.get('hosts'):
+                    for (k, v) in az['hosts'].items():
+                        req_resource = "/os-hypervisors/detail?hypervisor_hostname_pattern=%s" % k
+                        service = {'service_type': "compute",
+                                   'interface': 'public',
+                                   'region_id': viminfo['cloud_region_id']}
+                        resp = session.get(req_resource, endpoint_filter=service)
+                        content = resp.json()
+                        self._logger.debug("vimid: %s, req: %s,resp code: %s, body: %s"
+                                           % (vimid, req_resource, resp.status_code, content))
+                        if resp.status_code != status.HTTP_200_OK and not content[0]:
+                            continue
+                        az_info['hypervisor-type'] = content['hypervisors'][0]['hypervisor_type']\
+                            if len(content.get('hypervisors')) else ''
+
+                        break
+                ret = self._update_resoure(
+                    cloud_owner, cloud_region_id, az['zoneName'], az_info,
+                    "availability-zone")
+                if ret != 0:
+                    # failed to update image
+                    self._logger.debug("failed to populate az info into AAI: %s, az name: %s, ret:%s"
+                                       % (vimid, az_info['availability-zone-name'], ret))
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    # def _discover_volumegroups(self, vimid="", session=None, viminfo=None):
+    #     cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+    #     for cg in self._get_list_resources(
+    #             "/consistencygroups/detail", "volumev3", session,
+    #             viminfo, vimid,
+    #             "consistencygroups"):
+    #         vg_info = {
+    #             'volume-group-id': cg['id'],
+    #             'volume-group-name': cg['name'],
+    #             'vnf-type': '',
+    #         }
+    #
+    #         ret = self._update_resoure(
+    #             cloud_owner, cloud_region_id, cg['id'], vg_info,
+    #             "volume-group")
+    #         if ret != 0:
+    #             # failed to update image
+    #             self._logger.debug("failed to populate volumegroup info into AAI: %s, volume-group-id: %s, ret:%s"
+    #                                % (vimid, vg_info['volume-group-id'], ret))
+
+    def _discover_snapshots(self, vimid="", session=None, viminfo=None):
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for ss in self._get_list_resources(
+                    "/snapshots/detail", "volumev3", session,
+                    viminfo, vimid,
+                    "snapshots"):
+                snapshot_info = {
+                    'snapshot-id': ss['id'],
+                    'snapshot-name': ss['name'],
+                }
+                if ss.get('metadata'):
+                    snapshot_info['snapshot-architecture'] = ss['metadata'].get('architecture')
+                    snapshot_info['application'] = ss['metadata'].get('architecture')
+                    snapshot_info['snapshot-os-distro'] = ss['metadata'].get('os-distro')
+                    snapshot_info['snapshot-os-version'] = ss['metadata'].get('os-version')
+                    snapshot_info['application-vendor'] = ss['metadata'].get('vendor')
+                    snapshot_info['application-version'] = ss['metadata'].get('version')
+                    snapshot_info['snapshot-selflink'] = ss['metadata'].get('selflink')
+                    snapshot_info['prev-snapshot-id'] = ss['metadata'].get('prev-snapshot-id')
+
+                ret = self._update_resoure(
+                    cloud_owner, cloud_region_id, ss['id'], snapshot_info,
+                    "snapshot")
+                if ret != 0:
+                    # failed to update image
+                    self._logger.debug("failed to populate snapshot info into AAI: %s, snapshot-id: %s, ret:%s"
+                                       % (vimid, snapshot_info['snapshot-id'], ret))
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    # def _discover_servergroups(self, vimid="", session=None, viminfo=None):
+    #     for sg in self._get_list_resources(
+    #             "/os-server-groups", "compute", session,
+    #             viminfo, vimid,
+    #             "security groups"):
+
+    def _update_pserver(self, cloud_owner, cloud_region_id, pserverinfo):
+        '''
+        populate pserver into AAI
+        :param cloud_owner:
+        :param cloud_region_id:
+        :param pserverinfo:
+            hostname: string
+            in-maint: boolean
+
+            pserver-name2: string
+            pserver-id: string
+            ptnii-equip-name: string
+            number-of-cpus: integer
+            disk-in-gigabytes: integer
+            ram-in-megabytes: integer
+            equip-type: string
+            equip-vendor: string
+            equip-model: string
+            fqdn: string
+            pserver-selflink: string
+            ipv4-oam-address: string
+            serial-number: string
+            ipaddress-v4-loopback-0: string
+            ipaddress-v6-loopback-0: string
+            ipaddress-v4-aim: string
+            ipaddress-v6-aim: string
+            ipaddress-v6-oam: string
+            inv-status: string
+            internet-topology: string
+            purpose: string
+            prov-status: string
+            management-option: string
+            host-profile: string
+
+        :return:
+        '''
+
+        if cloud_owner and cloud_region_id:
+            resource_url = "/cloud-infrastructure/pservers/pserver/%s" \
+                           % (pserverinfo['hostname'])
+
+            # get cloud-region
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "GET")
+
+            # add resource-version to url
+            if retcode == 0 and content:
+                content = json.JSONDecoder().decode(content)
+                #pserverinfo["resource-version"] = content["resource-version"]
+                content.update(pserverinfo)
+                pserverinfo = content
+
+
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "PUT", content=pserverinfo)
+
+            self._logger.debug("update_snapshot,vimid:%s_%s req_to_aai: %s, return %s, %s, %s"
+                               % (cloud_owner,cloud_region_id, pserverinfo['hostname'], retcode, content, status_code))
+
+            if retcode == 0:
+                # relationship to cloud-region
+
+                related_link = ("%s/cloud-infrastructure/cloud-regions/"
+                                "cloud-region/%s/%s" % (
+                                    self.aai_base_url, cloud_owner,
+                                    cloud_region_id))
+
+                relationship_data = \
+                    {
+                        'related-to': 'cloud-region',
+                        'related-link': related_link,
+                        'relationship-data': [
+                            {
+                                'relationship-key': 'cloud-region.cloud-owner',
+                                'relationship-value': cloud_owner
+                            },
+                            {
+                                'relationship-key': 'cloud-region.cloud-region-id',
+                                'relationship-value': cloud_region_id
+                            }
+                        ],
+                        "related-to-property": [
+                            {
+                                "property-key": "cloud-region.cloud-owner"
+                            },
+                            {
+                                "property-key": "cloud-region.cloud-region-id"
+                            }
+                        ]
+                    }
+
+                retcode, content, status_code = \
+                    restcall.req_to_aai("/cloud-infrastructure/pservers/pserver/%s/relationship-list/relationship"
+                               % (pserverinfo['hostname']), "PUT", content=relationship_data)
+
+                self._logger.debug("update_pserver,vimid:%s_%s req_to_aai: %s, return %s, %s, %s"
+                                   % (cloud_owner, cloud_region_id, pserverinfo['hostname'], retcode, content,
+                                      status_code))
+
+            return retcode
+        return 1  # unknown cloud owner,region_id
+
+    def _discover_pservers(self, vimid="", session=None, viminfo=None):
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            for hypervisor in self._get_list_resources(
+                    "/os-hypervisors/detail", "compute", session,
+                    viminfo, vimid,
+                    "hypervisors"):
+                hypervisor_info = {
+                    'hostname': hypervisor['hypervisor_hostname'],
+                    'in-maint': hypervisor['state'],
+
+                    'pserver-id': hypervisor.get('id'),
+                    'ptnii-equip-name': hypervisor.get('id'),
+                    'disk-in-gigabytes': hypervisor.get('local_gb'),
+                    'ram-in-megabytes': hypervisor.get('memory_mb'),
+                    'pserver-selflink': hypervisor.get('hypervisor_links'),
+                    'ipv4-oam-address': hypervisor.get('host_ip'),
+                }
+
+    #            if hypervisor.get('cpu_info') and hypervisor['cpu_info'].get('topology'):
+    #                cputopo = hypervisor['cpu_info'].get('topology')
+    #                n_cpus = cputopo['cores'] * cputopo['threads'] * cputopo['sockets']
+    #                hypervisor_info['number-of-cpus'] = n_cpus
+                if hypervisor.get('cpu_info'):
+                    cpu_info = json.loads(hypervisor['cpu_info'])
+                    if cpu_info.get('topology'):
+                        cputopo = cpu_info.get('topology')
+                        n_cpus = cputopo['cores'] * cputopo['threads'] * cputopo['sockets']
+                        hypervisor_info['number-of-cpus'] = n_cpus
+
+                ret = self._update_pserver(cloud_owner, cloud_region_id,
+                                          hypervisor_info)
+                if ret != 0:
+                    # failed to update image
+                    self._logger.debug("failed to populate pserver info into AAI: %s, hostname: %s, ret:%s"
+                                       % (vimid, hypervisor_info['hostname'], ret))
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    def _update_epa_caps(self, cloud_owner, cloud_region_id, epa_caps_info):
+        '''
+        populate cloud EPA Capabilities information into AAI
+        :param cloud_owner:
+        :param cloud_region_id:
+        :param epa_caps_info: dict of meta data about cloud-region's epa caps
+
+        :return:
+        '''
+
+        cloud_epa_caps = {
+            'cloud-epa-caps': json.dumps(epa_caps_info),
+        }
+
+        if cloud_owner and cloud_region_id:
+            resource_url = "/cloud-infrastructure/cloud-regions/cloud-region/%s/%s" \
+                           % (cloud_owner, cloud_region_id)
+
+            # get cloud-region
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "GET")
+
+            #add resource-version to url
+            if retcode == 0 and content:
+                content = json.JSONDecoder().decode(content)
+                #cloud_epa_caps["resource-version"] = content["resource-version"]
+                content.update(cloud_epa_caps)
+                cloud_epa_caps = content
+
+            #update cloud-region
+            retcode, content, status_code = \
+                restcall.req_to_aai(resource_url, "PUT", content=cloud_epa_caps)
+
+            self._logger.debug(
+                "update_epa_caps,vimid:%s_%s req_to_aai: update cloud-epa-caps, return %s, %s, %s"
+                % (cloud_owner,cloud_region_id, retcode, content, status_code))
+
+            return retcode
+        return 1  # unknown cloud owner,region_id
+
+    def _discover_epa_resources(self, vimid="", viminfo=None):
+        try:
+            cloud_epa_caps_info = {}
+            cloud_extra_info_str = viminfo.get('cloud_extra_info')
+            if cloud_extra_info_str:
+                cloud_extra_info = json.loads(cloud_extra_info_str)
+                cloud_epa_caps_info.update(cloud_extra_info.get("epa-caps"))
+
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            ret = self._update_epa_caps(cloud_owner, cloud_region_id,
+                                        cloud_epa_caps_info)
+            if ret != 0:
+                # failed to update image
+                self._logger.debug("failed to populate EPA CAPs info into AAI: %s, ret:%s"
+                                   % (vimid, ret))
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    def _update_proxy_identity_endpoint(self, vimid):
+        '''
+        update cloud_region's identity url
+        :param cloud_owner:
+        :param cloud_region_id:
+        :param url:
+        :return:
+        '''
+        try:
+            cloud_owner, cloud_region_id = extsys.decode_vim_id(vimid)
+            if cloud_owner and cloud_region_id:
+                resource_url = "/cloud-infrastructure/cloud-regions/cloud-region/%s/%s" \
+                               % (cloud_owner, cloud_region_id)
+
+                # get cloud-region
+                retcode, content, status_code = \
+                    restcall.req_to_aai(resource_url, "GET")
+
+                # add resource-version to url
+                if retcode == 0 and content:
+                    viminfo = json.JSONDecoder().decode(content)
+                    # cloud_epa_caps["resource-version"] = content["resource-version"]
+                    viminfo['identity-url'] = self.proxy_prefix + "/%s/identity/v2.0" % vimid
+
+                    retcode, content, status_code = \
+                        restcall.req_to_aai("/cloud-infrastructure/cloud-regions/cloud-region/%s/%s"
+                                   % (cloud_owner, cloud_region_id), "PUT", content=viminfo)
+
+                    self._logger.debug("update_proxy_identity_endpoint,vimid:%s req_to_aai: %s, return %s, %s, %s"
+                                       % (vimid, viminfo['identity-url'], retcode, content, status_code))
+                else:
+                    self._logger.debug("failure: update_proxy_identity_endpoint,vimid:%s req_to_aai: return %s, %s, %s"
+                                       % (vimid, retcode, content, status_code))
+
+        except VimDriverNewtonException as e:
+            self._logger.error("VimDriverNewtonException: status:%s, response:%s" % (e.http_status, e.content))
+            return
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return
+
+    def post(self, request, vimid=""):
+        self._logger.debug("Registration--post::data> %s" % request.data)
+        self._logger.debug("Registration--post::vimid > %s" % vimid)
+
+        try:
+            # populate proxy identity url
+            self._update_proxy_identity_endpoint(vimid)
+
+            # prepare request resource to vim instance
+            # get token:
+            viminfo = VimDriverUtils.get_vim_info(vimid)
+            if not viminfo:
+                raise VimDriverNewtonException(
+                    "There is no cloud-region with {cloud-owner}_{cloud-region-id}=%s in AAI" % vimid)
+
+            # set the default tenant since there is no tenant info in the VIM yet
+            sess = VimDriverUtils.get_session(
+                viminfo, tenant_name=viminfo['tenant'])
+
+            # step 1. discover all projects and populate into AAI
+            self._discover_tenants(vimid, sess, viminfo)
+
+            # discover all flavors
+            self._discover_flavors(vimid, sess, viminfo)
+
+            # discover all images
+            self._discover_images(vimid, sess, viminfo)
+
+            # discover all az
+            self._discover_availability_zones(vimid, sess, viminfo)
+
+            # discover all vg
+            #self._discover_volumegroups(vimid, sess, viminfo)
+
+            # discover all snapshots
+            self._discover_snapshots(vimid, sess, viminfo)
+
+            # discover all server groups
+            #self.discover_servergroups(request, vimid, sess, viminfo)
+
+            # discover all pservers
+            self._discover_pservers(vimid, sess, viminfo)
+
+            # discover all epa resources, e.g. sriov pf and vf, etc.
+            self._discover_epa_resources(vimid, viminfo)
+
+            return Response(status=status.HTTP_202_ACCEPTED)
+
+        except VimDriverNewtonException as e:
+            return Response(data={'error': e.content}, status=e.status_code)
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return Response(data=e.response.json(), status=e.http_status)
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return Response(
+                data={'error': str(e)},
+                status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+    def delete(self, request, vimid=""):
+        self._logger.debug("Registration--delete::data> %s" % request.data)
+        self._logger.debug("Registration--delete::vimid > %s"% vimid)
+        try:
+            ret_code = VimDriverUtils.delete_vim_info(vimid)
+            return Response(status=status.HTTP_202_ACCEPTED if ret_code==0 else status.HTTP_500_INTERNAL_SERVER_ERROR)
+        except VimDriverNewtonException as e:
+            return Response(data={'error': e.content}, status=e.status_code)
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            return Response(data=e.response.json(), status=e.http_status)
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return Response(data={'error': str(e)},
+                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)