summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--ocata/ocata/resource/__init__.py14
-rw-r--r--ocata/ocata/resource/views/__init__.py14
-rw-r--r--ocata/ocata/resource/views/capacity.py117
-rw-r--r--ocata/ocata/urls.py4
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()),
]