Add Lenovo ThinkCLoud Driver

add a new branch lenovo
modify pom.xml under the root

Change-Id: I5edd57bf3e9cc1e32c5a94b9494daf645b220eaa
Issue-ID: MULTICLOUD-506
Signed-off-by: Changjun Wang <310397125@qq.com>

4 files changed, 676 insertions, 0 deletions

diff --git a/lenovo/thinkcloud/resource/views/__init__.py b/lenovo/thinkcloud/resource/views/__init__.py
new file mode 100644
index 00000000..5b09b2fd
--- /dev/null
+++ b/lenovo/thinkcloud/resource/views/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2017-2018 Lenovo 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.
diff --git a/lenovo/thinkcloud/resource/views/capacity.py b/lenovo/thinkcloud/resource/views/capacity.py
new file mode 100644
index 00000000..e76c93a3
--- /dev/null
+++ b/lenovo/thinkcloud/resource/views/capacity.py
@@ -0,0 +1,144 @@
+# Copyright (c) 2018 Intel Corporation.
+#
+# 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 traceback
+
+from common.exceptions import VimDriverNewtonException
+from newton_base.util import VimDriverUtils
+
+from keystoneauth1.exceptions import HttpError
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+from common.msapi import extsys
+
+
+logger = logging.getLogger(__name__)
+
+
+class CapacityCheck(APIView):
+
+    def __init__(self):
+        self._logger = logger
+
+    def post(self, request, vimid=""):
+        self._logger.info("CapacityCheck--post::vimid, data> %s, %s" % (vimid, request.data))
+        self._logger.debug("CapacityCheck--post::META> %s" % request.META)
+
+        hasEnoughResource = False
+        try:
+            resource_demand = request.data
+
+            tenant_name = None
+            vim = VimDriverUtils.get_vim_info(vimid)
+            sess = VimDriverUtils.get_session(vim, tenant_name)
+
+            # get token:
+            cloud_owner, regionid = extsys.decode_vim_id(vimid)
+            interface = 'public'
+            service = {'service_type': 'compute',
+                       'interface': interface,
+                       'region_name': vim['openstack_region_id']
+                       if vim.get('openstack_region_id')
+                       else vim['cloud_region_id']}
+
+            # get limit for this tenant
+            req_resouce = "/limits"
+            resp = sess.get(req_resouce, endpoint_filter=service)
+            content = resp.json()
+            compute_limits = content['limits']['absolute']
+
+            # get total resource of this cloud region
+            try:
+                req_resouce = "/os-hypervisors/statistics"
+                self._logger.info("check os-hypervisors statistics> URI:%s" % req_resouce)
+                resp = sess.get(req_resouce, endpoint_filter=service)
+                self._logger.info("check os-hypervisors statistics> status:%s" % resp.status_code)
+                content = resp.json()
+                hypervisor_statistics = content['hypervisor_statistics']
+                self._logger.debug("check os-hypervisors statistics> resp data:%s" % content)
+            except HttpError as e:
+                if e.http_status == status.HTTP_403_FORBIDDEN:
+                    # Due to non administrator account cannot get hypervisor data,
+                    # so construct enough resource data
+                    conVCPUS = int(resource_demand['vCPU'])
+                    conFreeRamMB = int(resource_demand['Memory'])
+                    conFreeDiskGB = int(resource_demand['Storage'])
+                    self._logger.info("Non administator forbidden to access hypervisor statistics data")
+                    hypervisor_statistics = {'vcpus_used': 0, 'vcpus': conVCPUS, 'free_ram_mb': conFreeRamMB, 'free_disk_gb': conFreeDiskGB}
+                else:
+                    # non forbiden exeption will be redirected
+                    raise e
+
+            # get storage limit for this tenant
+            service['service_type'] = 'volumev2'
+            req_resouce = "/limits"
+            resp = sess.get(req_resouce, endpoint_filter=service)
+            content = resp.json()
+            storage_limits = content['limits']['absolute']
+
+            # compute actual available resource for this tenant
+            remainVCPU = compute_limits['maxTotalCores'] - compute_limits['totalCoresUsed']
+            remainHypervisorVCPU = hypervisor_statistics['vcpus'] - hypervisor_statistics['vcpus_used']
+
+            if (remainVCPU > remainHypervisorVCPU):
+                remainVCPU = remainHypervisorVCPU
+
+            remainMEM = compute_limits['maxTotalRAMSize'] - compute_limits['totalRAMUsed']
+            remainHypervisorMEM = hypervisor_statistics['free_ram_mb']
+            if remainMEM > remainHypervisorMEM:
+                remainMEM = remainHypervisorMEM
+
+            remainStorage = storage_limits['maxTotalVolumeGigabytes'] - storage_limits['totalGigabytesUsed']
+            remainHypervisorStorage = hypervisor_statistics['free_disk_gb']
+            if (remainStorage > remainHypervisorStorage):
+                remainStorage = remainHypervisorStorage
+
+            # compare resource demanded with available
+            if (int(resource_demand['vCPU']) > remainVCPU):
+                hasEnoughResource = False
+            elif (int(resource_demand['Memory']) > remainMEM):
+                hasEnoughResource = False
+            elif (int(resource_demand['Storage']) > remainStorage):
+                hasEnoughResource = False
+            else:
+                hasEnoughResource = True
+
+            return Response(data={'result': hasEnoughResource}, status=status.HTTP_200_OK)
+        except VimDriverNewtonException as e:
+            return Response(data={'result': hasEnoughResource, '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()))
+            resp = e.response.json()
+            resp.update({'result': hasEnoughResource})
+            return Response(data=e.response.json(), status=e.http_status)
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return Response(data={'result': hasEnoughResource, 'error': str(e)},
+                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+
+class APIv1CapacityCheck(CapacityCheck):
+
+    def __init__(self):
+        super(APIv1CapacityCheck, self).__init__()
+        # self._logger = logger
+
+    def post(self, request, cloud_owner="", cloud_region_id=""):
+        self._logger.info("vimid, data> %s,%s, %s" % (cloud_owner, cloud_region_id, request.data))
+        self._logger.debug("META> %s" % request.META)
+
+        vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
+        return super(APIv1CapacityCheck, self).post(request, vimid)
diff --git a/lenovo/thinkcloud/resource/views/events.py b/lenovo/thinkcloud/resource/views/events.py
new file mode 100644
index 00000000..ab706889
--- /dev/null
+++ b/lenovo/thinkcloud/resource/views/events.py
@@ -0,0 +1,99 @@
+# Copyright (c) 2017-2018 Lenovo 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 traceback
+
+from common.exceptions import VimDriverNewtonException
+from newton_base.util import VimDriverUtils
+
+from keystoneauth1.exceptions import HttpError
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+from common.msapi import extsys
+
+
+logger = logging.getLogger(__name__)
+
+
+class EventsCheck(APIView):
+
+    def __init__(self):
+        self._logger = logger
+
+    def post(self, request, vimid=""):
+        self._logger.info("vimid, data> %s, %s" % (vimid, request.data))
+        self._logger.debug("META> %s" % request.META)
+
+        try:
+            tenant_name = None
+            vim = VimDriverUtils.get_vim_info(vimid)
+            sess = VimDriverUtils.get_session(vim, tenant_name)
+
+            # get token:
+            cloud_owner, regionid = extsys.decode_vim_id(vimid)
+            interface = 'public'
+            service = {
+                'service_type': 'compute',
+                'interface': interface,
+                'region_name': vim['openstack_region_id']
+                if vim.get('openstack_region_id')
+                else vim['cloud_region_id']
+            }
+
+            # get servers detail info
+            req_resouce = "/servers/detail"
+            self._logger.info("check servers detail> URI:%s" % req_resouce)
+            resp = sess.get(req_resouce, endpoint_filter=service)
+            self._logger.info("check servers detail> status:%s" % resp.status_code)
+            content = resp.json()
+            self._logger.debug("check servers detail> resp data:%s" % content)
+
+            # extract server status info
+            if len(content['servers']):
+                servers = content['servers']
+                resp_vmstate = []
+                for num in range(0, len(servers)):
+                    vmstate = {
+                        'name': servers[num]['name'],
+                        'state': servers[num]['OS-EXT-STS:vm_state'],
+                        'power_state': servers[num]['OS-EXT-STS:power_state'],
+                        'launched_at': servers[num]['OS-SRV-USG:launched_at'],
+                        'id': servers[num]['id'],
+                        'host': servers[num]['OS-EXT-SRV-ATTR:host'],
+                        'availability_zone': servers[num]['OS-EXT-AZ:availability_zone'],
+                        'tenant_id': servers[num]['tenant_id']
+                    }
+
+                    resp_vmstate.append(vmstate)
+
+            self._logger.info("RESP with data> result:%s" % resp_vmstate)
+            return Response(data={'result': resp_vmstate}, status=status.HTTP_200_OK)
+
+        except VimDriverNewtonException as e:
+            self._logger.error("Plugin exception> status:%s,error:%s" %
+                               (e.status_code, e.content))
+            return Response(data={'result': resp_vmstate, '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()))
+            resp = e.response.json()
+            resp.update({'result': resp_vmstate})
+            return Response(data=e.response.json(), status=e.http_status)
+
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return Response(data={'result': resp_vmstate, 'error': str(e)},
+                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
diff --git a/lenovo/thinkcloud/resource/views/infra_workload.py b/lenovo/thinkcloud/resource/views/infra_workload.py
new file mode 100644
index 00000000..ab464da8
--- /dev/null
+++ b/lenovo/thinkcloud/resource/views/infra_workload.py
@@ -0,0 +1,420 @@
+# Copyright (c) 2018 Intel Corporation.
+#
+# 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 json
+import logging
+import traceback
+
+from django.conf import settings
+from keystoneauth1.exceptions import HttpError
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from common.msapi import extsys
+from common.msapi.helper import Helper as helper
+from common.utils import restcall
+from common.exceptions import VimDriverNewtonException
+
+logger = logging.getLogger(__name__)
+
+
+class InfraWorkload(APIView):
+
+    def __init__(self):
+        self._logger = logger
+
+    def post(self, request, vimid="", requri=""):
+        self._logger.info("vimid, requri: %s, %s" % (vimid, requri))
+        self._logger.info("data: %s" % request.data)
+        self._logger.debug("META: %s" % request.META)
+
+        try:
+            data = request.data
+            oof_directive = data.get("oof_directives", {})
+            template_type = data.get("template_type", None)
+            template_data = data.get("template_data", {})
+
+            resp_template = None
+            if template_type and "heat" == template_type.lower():
+                # update heat parameters from oof_directive
+                parameters = template_data.get("parameters", {})
+
+                for directive in oof_directive.get("directives", []):
+                    if directive["type"] == "vnfc":
+                        for directive2 in directive.get("directives", []):
+                            if directive2["type"] in ["flavor_directives", "sriovNICNetwork_directives"]:
+                                for attr in directive2.get("attributes", []):
+                                    label_name = attr["attribute_name"]
+                                    label_value = attr["attribute_value"]
+                                    if label_name in parameters:
+                                        template_data["parameters"][label_name] = label_value
+                                    else:
+                                        self._logger.warn("There is no parameter exist: %s" % label_name)
+
+                # update parameters
+                template_data["parameters"] = parameters
+
+                # reset to make sure "files" are empty
+                template_data["file"] = {}
+
+                # authenticate
+                cloud_owner, regionid = extsys.decode_vim_id(vimid)
+                # should go via multicloud proxy so that the selflink is updated by multicloud
+                retcode, v2_token_resp_json, os_status = helper.MultiCloudIdentityHelper(
+                    settings.MULTICLOUD_API_V1_PREFIX,
+                    cloud_owner, regionid, "/v2.0/tokens")
+                if retcode > 0 or not v2_token_resp_json:
+                    logger.error("authenticate fails:%s,%s, %s" %
+                                 (cloud_owner, regionid, v2_token_resp_json))
+                    return
+
+                service_type = "orchestration"
+                resource_uri = "/stacks"
+                self._logger.info("retrieve stack resources, URI:%s" % resource_uri)
+                retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner,
+                                                                             regionid,
+                                                                             v2_token_resp_json,
+                                                                             service_type,
+                                                                             resource_uri,
+                                                                             template_data,
+                                                                             "POST")
+                stack1 = content.get('stack', None) if retcode == 0 and content else None
+                resp_template = {
+                    "template_type": template_type,
+                    "workload_id": stack1["id"] if stack1 else "",
+                    "template_response": content
+                }
+                self._logger.info("RESP with data> result:%s" % resp_template)
+
+                return Response(data=resp_template, status=os_status)
+
+            else:
+                msg = "The template type %s is not supported" % (template_type)
+                self._logger.warn(msg)
+                return Response(data={"error": msg}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+        except VimDriverNewtonException as e:
+            self._logger.error("Plugin exception> status:%s,error:%s"
+                               % (e.status_code, e.content))
+            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 get(self, request, vimid="", requri=""):
+        self._logger.info("vimid, requri: %s, %s" % (vimid, requri))
+        self._logger.debug("META: %s" % request.META)
+
+        try:
+            # assume the workload_type is heat
+            template_type = "heat"
+            stack_id = requri
+            cloud_owner, regionid = extsys.decode_vim_id(vimid)
+            # should go via multicloud proxy so that the selflink is updated by multicloud
+            retcode, v2_token_resp_json, os_status = helper.MultiCloudIdentityHelper(
+                settings.MULTICLOUD_API_V1_PREFIX,
+                cloud_owner, regionid, "/v2.0/tokens")
+            if retcode > 0 or not v2_token_resp_json:
+                logger.error("authenticate fails:%s, %s, %s" % (cloud_owner, regionid, v2_token_resp_json))
+                return
+
+            # get stack status
+            service_type = "orchestration"
+            resource_uri = "/stacks?id=%s" % stack_id if stack_id else "/stacks"
+            self._logger.info("retrieve stack resources, URI:%s" % resource_uri)
+            retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner, regionid, v2_token_resp_json,
+                                                                         service_type, resource_uri, None, "GET")
+            stacks = content.get('stacks', []) if retcode == 0 and content else []
+            stack_status = stacks[0]["stack_status"] if len(stacks) > 0 else ""
+
+            resp_template = {
+                "template_type": template_type,
+                "workload_id": stack_id,
+                "workload_status": stack_status
+            }
+
+            if retcode > 0:
+                resp_template['workload_response'] = content
+
+            if ('CREATE_COMPLETE' == stack_status):
+                self.heatbridge_update(request, vimid, stack_id)
+
+            self._logger.info("RESP with data> result:%s" % resp_template)
+            return Response(data=resp_template, status=status.HTTP_200_OK)
+        except VimDriverNewtonException as e:
+            self._logger.error("Plugin exception> status:%s,error:%s"
+                               % (e.status_code, e.content))
+            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 heatbridge_update(self, request, vimid, stack_id):
+        '''
+        update heat resource to AAI for the specified cloud region and tenant
+        The resources includes: vserver, vserver/l-interface,
+        :param request:
+        :param vimid:
+        :param stack_id:
+        :return:
+        '''
+
+        cloud_owner, regionid = extsys.decode_vim_id(vimid)
+        # should go via multicloud proxy so that the selflink is updated by multicloud
+        retcode, v2_token_resp_json, os_status = helper.MultiCloudIdentityHelper(settings.MULTICLOUD_API_V1_PREFIX,
+                                                                                 cloud_owner, regionid, "/v2.0/tokens")
+        if retcode > 0:
+            logger.error("authenticate fails:%s, %s, %s" % (cloud_owner, regionid, v2_token_resp_json))
+            return None
+        tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"]
+        # tenant_name = v2_token_resp_json["access"]["token"]["tenant"]["name"]
+
+        # common prefix
+        aai_cloud_region = "/cloud-infrastructure/cloud-regions/cloud-region/%s/%s/tenants/tenant/%s" \
+                           % (cloud_owner, regionid, tenant_id)
+
+        # get stack resource
+        service_type = "orchestration"
+        resource_uri = "/stacks/%s/resources" % (stack_id)
+        self._logger.info("retrieve stack resources, URI:%s" % resource_uri)
+        retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner, regionid, v2_token_resp_json, service_type, resource_uri, None, "GET")
+        resources = content.get('resources', []) if retcode == 0 and content else []
+
+        # find and update resources
+        transactions = []
+        for resource in resources:
+            if resource.get('resource_status', None) != "CREATE_COMPLETE":
+                continue
+            if resource.get('resource_type', None) == 'OS::Nova::Server':
+                # retrieve vserver details
+                service_type = "compute"
+                resource_uri = "/servers/%s" % (resource['physical_resource_id'])
+                self._logger.info("retrieve vserver detail, URI:%s" % resource_uri)
+                retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner, regionid, v2_token_resp_json, service_type,
+                                                                             resource_uri, None, "GET")
+                self._logger.debug(" resp data:%s" % content)
+                vserver_detail = content.get('server', None) if retcode == 0 and content else None
+                if vserver_detail:
+                    # compose inventory entry for vserver
+                    vserver_link = ""
+                    for link in vserver_detail['links']:
+                        if link['rel'] == 'self':
+                            vserver_link = link['href']
+                            break
+                        pass
+
+                    # note: relationship-list to flavor/image is not be update yet
+                    # note: volumes is not updated yet
+                    # note: relationship-list to vnf will be handled somewhere else
+                    aai_resource = {
+                        'body': {
+                            'vserver-name': vserver_detail['name'],
+                            'vserver-name2': vserver_detail['name'],
+                            "vserver-id": vserver_detail['id'],
+                            "vserver-selflink": vserver_link,
+                            "prov-status": vserver_detail['status']
+                        },
+                        "uri": aai_cloud_region + "/vservers/vserver/%s"
+                                                  % (vserver_detail['id'])
+                    }
+
+                    try:
+                        # then update the resource
+                        retcode, content, status_code = \
+                            restcall.req_to_aai(aai_resource['uri'], "PUT", content=aai_resource['body'])
+
+                        if retcode == 0 and content:
+                            content = json.JSONDecoder().decode(content)
+                            self._logger.debug("AAI update %s response: %s" % (aai_resource['uri'], content))
+                    except Exception as e:
+                        self._logger.error(traceback.format_exc(e))
+                        pass
+
+                    aai_resource_transactions = {"put": [aai_resource]}
+                    transactions.append(aai_resource_transactions)
+                    # self._logger.debug("aai_resource :%s" % aai_resource_transactions)
+                    pass
+
+        for resource in resources:
+            if resource.get('resource_status', None) != "CREATE_COMPLETE":
+                continue
+            if resource.get('resource_type', None) == 'OS::Neutron::Port':
+                # retrieve vserver details
+                service_type = "network"
+                resource_uri = "/v2.0/ports/%s" % (resource['physical_resource_id'])
+                self._logger.info("retrieve vserver detail, URI:%s" % resource_uri)
+                retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner,
+                                                                             regionid,
+                                                                             v2_token_resp_json,
+                                                                             service_type,
+                                                                             resource_uri,
+                                                                             None,
+                                                                             "GET")
+                self._logger.debug(" resp data:%s" % content)
+
+                vport_detail = content.get('port', None) if retcode == 0 and content else None
+                if vport_detail:
+                    # compose inventory entry for vport
+                    # note: l3-interface-ipv4-address-list, l3-interface-ipv6-address-list are not updated yet
+                    # note: network-name is not update yet since the detail coming with network-id
+                    aai_resource = {
+                        "body": {
+                            "interface-name": vport_detail['name'],
+                            "interface-id": vport_detail['id'],
+                            "macaddr": vport_detail['mac_address']
+                        },
+                        'uri': aai_cloud_region + "/vservers/vserver/%s/l-interfaces/l-interface/%s"
+                                                  % (vport_detail['device_id'], vport_detail['name'])
+                    }
+                    try:
+                        # then update the resource
+                        retcode, content, status_code = \
+                            restcall.req_to_aai(aai_resource['uri'], "PUT", content=aai_resource['body'])
+
+                        if retcode == 0 and content:
+                            content = json.JSONDecoder().decode(content)
+                            self._logger.debug("AAI update %s response: %s" % (aai_resource['uri'], content))
+                    except Exception as e:
+                        self._logger.error(traceback.format_exc(e))
+                        pass
+
+                    aai_resource_transactions = {"put": [aai_resource]}
+                    transactions.append(aai_resource_transactions)
+                    # self._logger.debug("aai_resource :%s" % aai_resource_transactions)
+
+                    pass
+
+        aai_transactions = {"transactions": transactions}
+        self._logger.debug("aai_transactions :%s" % aai_transactions)
+
+        return aai_transactions
+
+    def delete(self, request, vimid="", requri=""):
+        self._logger.info("vimid, requri: %s, %s" % (vimid, requri))
+        self._logger.debug("META: %s" % request.META)
+
+        try:
+            if requri == "":
+                raise VimDriverNewtonException(
+                    message="workload_id is not specified",
+                    content="workload_id must be specified to delete the workload",
+                    status_code=400)
+
+            # assume the workload_type is heat
+            template_type = "heat"
+            stack_id = requri
+            cloud_owner, regionid = extsys.decode_vim_id(vimid)
+            # should go via multicloud proxy so that the selflink is updated by multicloud
+            retcode, v2_token_resp_json, os_status = helper.MultiCloudIdentityHelper(
+                settings.MULTICLOUD_API_V1_PREFIX,
+                cloud_owner, regionid, "/v2.0/tokens")
+            if retcode > 0 or not v2_token_resp_json:
+                logger.error("authenticate fails:%s, %s, %s" % (cloud_owner, regionid, v2_token_resp_json))
+                return
+            # tenant_id = v2_token_resp_json["access"]["token"]["tenant"]["id"]
+            # tenant_name = v2_token_resp_json["access"]["token"]["tenant"]["name"]
+
+            # get stack status
+            service_type = "orchestration"
+            resource_uri = "/stacks?id=%s" % stack_id if stack_id else "/stacks"
+            self._logger.info("retrieve stack resources, URI:%s" % resource_uri)
+            retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner, regionid, v2_token_resp_json,
+                                                                         service_type, resource_uri, None, "GET")
+            stacks = content.get('stacks', []) if retcode == 0 and content else []
+            # assume there is at most 1 stack returned since it was filtered by id
+            stack1 = stacks[0] if stacks else None
+            stack_status = ""
+
+            if stack1 and 'CREATE_COMPLETE' == stack1['stack_status']:
+                # delete the stack
+                resource_uri = "/stacks/%s/%s" % (stack1['stack_name'], stack1['id'])
+                self._logger.info("delete stack, URI:%s" % resource_uri)
+                retcode, content, os_status = helper.MultiCloudServiceHelper(cloud_owner, regionid, v2_token_resp_json,
+                                                                             service_type, resource_uri, None, "DELETE")
+                if retcode == 0:
+                    stack_status = "DELETE_IN_PROCESS"
+                    # and update AAI inventory by heatbridge-delete
+                    self.heatbridge_delete(request, vimid, stack1['id'])
+
+            resp_template = {
+                "template_type": template_type,
+                "workload_id": stack_id,
+                "workload_status": stack_status
+            }
+
+            if retcode > 0:
+                resp_template["workload_response"] = content
+
+            self._logger.info("RESP with data> result:%s" % resp_template)
+            return Response(status=os_status)
+        except VimDriverNewtonException as e:
+            self._logger.error("Plugin exception> status:%s,error:%s"
+                               % (e.status_code, e.content))
+            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 heatbridge_delete(self, request, stack_id, vimid):
+        '''
+        remove heat resource from AAI for the specified cloud region and tenant
+        The resources includes: vserver, vserver/l-interface,
+        :param request:
+        :param stack_id:
+        :param vimid:
+        :param tenant_id:
+        :return:
+        '''
+        pass
+
+
+class APIv1InfraWorkload(InfraWorkload):
+
+    def __init__(self):
+        super(APIv1InfraWorkload, self).__init__()
+        # self._logger = logger
+
+    def post(self, request, cloud_owner="", cloud_region_id="", requri=""):
+        # self._logger.info("cloud owner, cloud region id, data: %s,%s, %s" % (cloud_owner, cloud_region_id, request.data))
+        # self._logger.debug("META: %s" % request.META)
+
+        vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
+        return super(APIv1InfraWorkload, self).post(request, vimid, requri)
+
+    def get(self, request, cloud_owner="", cloud_region_id="", requri=""):
+        # self._logger.info("cloud owner, cloud region id, data: %s,%s, %s" % (cloud_owner, cloud_region_id, request.data))
+        # self._logger.debug("META: %s" % request.META)
+
+        vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
+        return super(APIv1InfraWorkload, self).get(request, vimid, requri)
+
+    def delete(self, request, cloud_owner="", cloud_region_id="", requri=""):
+        # self._logger.info("cloud owner, cloud region id, data: %s,%s, %s" % (cloud_owner, cloud_region_id, request.data))
+        # self._logger.debug("META: %s" % request.META)
+
+        vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
+        return super(APIv1InfraWorkload, self).delete(request, vimid, requri)