diff options
| -rw-r--r-- | ocata/ocata/resource/__init__.py | 14 | ||||
| -rw-r--r-- | ocata/ocata/resource/views/__init__.py | 14 | ||||
| -rw-r--r-- | ocata/ocata/resource/views/capacity.py | 117 | ||||
| -rw-r--r-- | ocata/ocata/urls.py | 4 |
4 files changed, 149 insertions, 0 deletions
diff --git a/ocata/ocata/resource/__init__.py b/ocata/ocata/resource/__init__.py new file mode 100644 index 00000000..afa702d3 --- /dev/null +++ b/ocata/ocata/resource/__init__.py @@ -0,0 +1,14 @@ +# Copyright (c) 2017-2018 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. + diff --git a/ocata/ocata/resource/views/__init__.py b/ocata/ocata/resource/views/__init__.py new file mode 100644 index 00000000..afa702d3 --- /dev/null +++ b/ocata/ocata/resource/views/__init__.py @@ -0,0 +1,14 @@ +# Copyright (c) 2017-2018 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. + diff --git a/ocata/ocata/resource/views/capacity.py b/ocata/ocata/resource/views/capacity.py new file mode 100644 index 00000000..d73cc0fb --- /dev/null +++ b/ocata/ocata/resource/views/capacity.py @@ -0,0 +1,117 @@ +# Copyright (c) 2017-2018 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 rest_framework import status + +from django.conf import settings +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 + + #get token: + cloud_owner, regionid = extsys.decode_vim_id(vimid) + interface = 'public' + service = {'service_type': 'compute', + 'interface': interface, + 'region_id': regionid} + + tenant_name = None + vim = VimDriverUtils.get_vim_info(vimid) + sess = VimDriverUtils.get_session(vim, tenant_name) + + #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 + req_resouce = "/os-hypervisors/statistics" + resp = sess.get(req_resouce, endpoint_filter=service) + content = resp.json() + hypervisor_statistics = content['hypervisor_statistics'] + + #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'] + + if (compute_limits['maxTotalCores'] > hypervisor_statistics['vcpus']): + if hypervisor_statistics['vcpus'] > compute_limits['totalCoresUsed']: + remainVCPU = hypervisor_statistics['vcpus'] - compute_limits['totalCoresUsed'] + else: + remainVCPU = 0 + + remainMEM = compute_limits['maxTotalRAMSize'] - compute_limits['totalRAMUsed'] + if hypervisor_statistics['free_ram_mb'] > remainMEM: + remainMEM = hypervisor_statistics['free_ram_mb'] + + remainStorage = storage_limits['maxTotalVolumeGigabytes'] - storage_limits['totalGigabytesUsed'] + if (remainStorage < hypervisor_statistics['free_disk_gb']): + remainStorage = hypervisor_statistics['free_disk_gb'] + + # 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) + diff --git a/ocata/ocata/urls.py b/ocata/ocata/urls.py index b1d198d7..b6312cfb 100644 --- a/ocata/ocata/urls.py +++ b/ocata/ocata/urls.py @@ -16,6 +16,7 @@ from django.conf.urls import include, url from ocata.registration.views import registration from newton_base.openoapi import tenants +from ocata.resource.views import capacity urlpatterns = [ url(r'^', include('ocata.swagger.urls')), @@ -32,6 +33,9 @@ urlpatterns = [ tenants.Tenants.as_view()), url(r'^api/multicloud-ocata/v0/(?P<vimid>[0-9a-zA-Z_-]+)/' '(?P<tenantid>[0-9a-zA-Z_-]{20,})/', include('ocata.requests.urls')), + # CapacityCheck + url(r'^api/multicloud-ocata/v0/(?P<vimid>[0-9a-zA-Z_-]+)/capacity_check/?$', + capacity.CapacityCheck.as_view()), ] |