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# 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 keystoneauth1.exceptions import HttpError
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView
from newton.pub.exceptions import VimDriverNewtonException
from newton_base.util import VimDriverUtils
logger = logging.getLogger(__name__)
class Flavors(APIView):
service = {'service_type': 'compute',
'interface': 'public'}
keys_mapping = [
("project_id", "tenantId"),
("ram", "memory"),
("vcpus", "vcpu"),
("OS-FLV-EXT-DATA:ephemeral", "ephemeral"),
("os-flavor-access:is_public", "isPublic"),
("extra_specs", "extraSpecs"),
]
def _convert_extra_specs(self, extraSpecs, extra_specs, reverse=False):
if reverse == False:
#from extraSpecs to extra_specs
for spec in extraSpecs:
extra_specs[spec['keyName']] = spec['value']
else:
for k,v in extra_specs.items():
spec={}
spec['keyName']=k
spec['value']=v
extraSpecs.append(spec)
def get(self, request, vimid="", tenantid="", flavorid=""):
logger.debug("Flavors--get::> %s" % request.data)
try:
# prepare request resource to vim instance
query = VimDriverUtils.get_query_part(request)
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
resp = self._get_flavor(sess, request, flavorid)
content = resp.json()
if flavorid:
flavor = content.pop("flavor", None)
extraResp = self._get_flavor_extra_specs(sess, flavor["id"])
extraContent = extraResp.json()
if extraContent["extra_specs"]:
extraSpecs = []
self._convert_extra_specs(extraSpecs, extraContent["extra_specs"], True)
flavor["extraSpecs"] = extraSpecs
VimDriverUtils.replace_key_by_mapping(flavor,
self.keys_mapping)
content.update(flavor)
else:
wanted = None
#check if query contains name="flavorname"
if query:
for queryone in query.split('&'):
k,v = queryone.split('=')
if k == "name":
wanted = v
break
if wanted:
oldFlavors = content.pop("flavors", None)
content["flavors"] = []
for flavor in oldFlavors:
if wanted == flavor["name"]:
content["flavors"].append(flavor)
#iterate each flavor to get extra_specs
for flavor in content["flavors"]:
extraResp = self._get_flavor_extra_specs(sess, flavor["id"])
extraContent = extraResp.json()
if extraContent["extra_specs"]:
extraSpecs = []
self._convert_extra_specs(extraSpecs, extraContent["extra_specs"], True)
flavor["extraSpecs"] = extraSpecs
VimDriverUtils.replace_key_by_mapping(flavor,
self.keys_mapping)
#add extra keys
vim_dict = {
"vimName": vim["name"],
"vimId": vim["vimId"],
"tenantId": tenantid,
}
content.update(vim_dict)
return Response(data=content, status=resp.status_code)
except VimDriverNewtonException as e:
return Response(data={'error': e.content}, status=e.status_code)
except HttpError as e:
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:
logger.error(traceback.format_exc())
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def _get_flavor_extra_specs(self, sess, flavorid):
if flavorid:
logger.debug("Flavors--get_extra_specs::> %s" % flavorid)
# prepare request resource to vim instance
req_resouce = "/flavors/%s/os-extra_specs" % flavorid
resp = sess.get(req_resouce, endpoint_filter=self.service)
return resp
return {}
def _get_flavor(self, sess, request, flavorid=""):
logger.debug("Flavors--get basic")
if sess:
# prepare request resource to vim instance
req_resouce = "/flavors"
if flavorid:
req_resouce += "/%s" % flavorid
else:
req_resouce += "/detail"
query = VimDriverUtils.get_query_part(request)
if query:
req_resouce += "?%s" % query
return sess.get(req_resouce, endpoint_filter=self.service)
return {}
def post(self, request, vimid="", tenantid="", flavorid=""):
logger.debug("Flavors--post::> %s" % request.data)
sess = None
resp = None
resp_body = None
try:
# prepare request resource to vim instance
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
#check if the flavor is already created: name or id
tmpresp = self._get_flavor(sess, request)
content = tmpresp.json()
#iterate each flavor to get extra_specs
existed = False
for flavor in content["flavors"]:
if flavor["name"] == request.data["name"]:
existed = True
break
elif hasattr(request.data, "id") and flavor["id"] == request.data["id"]:
existed = True
break
if existed:
extraResp = self._get_flavor_extra_specs(sess, flavor["id"])
extraContent = extraResp.json()
if extraContent["extra_specs"]:
extraSpecs = []
self._convert_extra_specs(extraSpecs, extraContent["extra_specs"], True)
flavor["extraSpecs"] = extraSpecs
VimDriverUtils.replace_key_by_mapping(flavor,
self.keys_mapping)
vim_dict = {
"vimName": vim["name"],
"vimId": vim["vimId"],
"tenantId": tenantid,
"returnCode": 0,
}
flavor.update(vim_dict)
return Response(data=flavor, status=tmpresp.status_code)
extraSpecs = request.data.pop("extraSpecs", None)
#create flavor first
resp = self._create_flavor(sess, request)
if resp.status_code == 202:
resp_body = resp.json()["flavor"]
else:
return resp
flavorid = resp_body['id']
if extraSpecs:
extra_specs={}
self._convert_extra_specs(extraSpecs, extra_specs, False)
# logger.debug("extraSpecs:%s" % extraSpecs)
# logger.debug("extra_specs:%s" % extra_specs)
extraResp = self._create_flavor_extra_specs(sess, extra_specs, flavorid)
if extraResp.status_code == 200:
#combine the response body and return
tmpSpecs = []
tmpRespBody = extraResp.json()
self._convert_extra_specs(tmpSpecs, tmpRespBody['extra_specs'], True)
resp_body.update({"extraSpecs":tmpSpecs})
else:
#rollback
self._delete_flavor(self, request, vimid, tenantid, flavorid)
return extraResp
VimDriverUtils.replace_key_by_mapping(resp_body, self.keys_mapping)
vim_dict = {
"vimName": vim["name"],
"vimId": vim["vimId"],
"tenantId": tenantid,
"returnCode": 1,
}
resp_body.update(vim_dict)
return Response(data=resp_body, status=resp.status_code)
except VimDriverNewtonException as e:
if sess and resp and resp.status_code == 200:
self._delete_flavor(sess, flavorid)
return Response(data={'error': e.content}, status=e.status_code)
except HttpError as e:
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:
logger.error(traceback.format_exc())
if sess and resp and resp.status_code == 200:
self._delete_flavor(sess, flavorid)
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def _create_flavor(self, sess, request):
logger.debug("Flavors--create::> %s" % request.data)
# prepare request resource to vim instance
req_resouce = "/flavors"
flavor = request.data
VimDriverUtils.replace_key_by_mapping(flavor,
self.keys_mapping, True)
req_body = json.JSONEncoder().encode({"flavor": flavor})
return sess.post(req_resouce, data=req_body,
endpoint_filter=self.service)
def _create_flavor_extra_specs(self, sess, extraspecs, flavorid):
logger.debug("Flavors extra_specs--post::> %s" % extraspecs)
# prepare request resource to vim instance
req_resouce = "/flavors"
if flavorid:
req_resouce += "/%s/os-extra_specs" % flavorid
else:
raise VimDriverNewtonException(message="VIM newton exception",
content="internal bug in creating flavor extra specs",
status_code=500)
req_body = json.JSONEncoder().encode({"extra_specs": extraspecs})
return sess.post(req_resouce, data=req_body,
endpoint_filter=self.service)
def delete(self, request, vimid="", tenantid="", flavorid=""):
logger.debug("Flavors--delete::> %s" % request.data)
try:
# prepare request resource to vim instance
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
#delete extra specs one by one
resp = self._delete_flavor_extra_specs(sess, flavorid)
#delete flavor
resp = self._delete_flavor(sess, flavorid)
#return results
return Response(status=resp.status_code)
except VimDriverNewtonException as e:
return Response(data={'error': e.content}, status=e.status_code)
except HttpError as e:
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:
logger.error(traceback.format_exc())
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def _delete_flavor_extra_specs(self, sess, flavorid):
logger.debug("Flavors--delete extra::> %s" % flavorid)
#delete extra specs one by one
resp = self._get_flavor_extra_specs(sess, flavorid)
extra_specs = resp.json()
if extra_specs and extra_specs["extra_specs"]:
for k, _ in extra_specs["extra_specs"].items():
# just try to delete extra spec, but do not care if succeeded
self._delete_flavor_one_extra_spec(sess, flavorid, k)
return resp
def _delete_flavor_one_extra_spec(self, sess, flavorid, extra_spec_key):
logger.debug("Flavors--delete 1 extra::> %s" % extra_spec_key)
# prepare request resource to vim instance
try:
req_resouce = "/flavors"
if flavorid and extra_spec_key:
req_resouce += "/%s" % flavorid
req_resouce += "/os-extra_specs/%s" % extra_spec_key
else:
raise VimDriverNewtonException(message="VIM newton exception",
content="internal bug in deleting flavor extra specs: %s" % extra_spec_key,
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR)
return sess.delete(req_resouce, endpoint_filter=self.service)
except HttpError as e:
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:
logger.error(traceback.format_exc())
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def _delete_flavor(self, sess, flavorid):
logger.debug("Flavors--delete basic::> %s" % flavorid)
# prepare request resource to vim instance
req_resouce = "/flavors"
if flavorid:
req_resouce += "/%s" % flavorid
else:
raise VimDriverNewtonException(message="VIM newton exception",
content="internal bug in deleting flavor",
status_code=500)
return sess.delete(req_resouce, endpoint_filter=self.service)
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