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# Copyright 2018 ZTE 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.
from driver.interfaces.serializers.link import LinkSerializer
from driver.interfaces.serializers.resource_handle import ResourceHandleSerializer
from rest_framework import serializers
class ResourceDefinitionSerializer(serializers.Serializer):
id = serializers.CharField(
help_text="Identifier of this ResourceDefinition, unique at least within the scope of the GrantRequest.",
required=True
)
type = serializers.ChoiceField(
help_text="Type of the resource definition referenced.",
choices=["COMPUTE", "VL", "STORAGE", "LINKPORT"],
required=True
)
vduId = serializers.CharField(
help_text="Reference to the related VDU in the VNFD applicable to this resource.",
required=False,
allow_null=True,
allow_blank=True
)
resourceTemplateId = serializers.CharField(
help_text="Reference to a resource template(such as VnfVirtualLinkDesc) in the VNFD.",
required=False,
allow_null=True,
allow_blank=True
)
resource = ResourceHandleSerializer(
help_text="Resource information for an existing resource.",
required=False,
allow_null=True
)
class ConstraintResourceRefSerializer(serializers.Serializer):
idType = serializers.ChoiceField(
help_text="The type of the identifier.",
choices=["RES_MGMT", "GRANT"],
required=True
)
resourceId = serializers.CharField(
help_text="An actual resource-management-level identifier(idType=RES_MGMT), or an identifier that references a ResourceDefinition(idType=GRANT).",
required=True
)
vimConnectionId = serializers.CharField(
help_text="",
required=False,
allow_null=True,
allow_blank=True
)
resourceProviderId = serializers.CharField(
help_text="Identifier of the resource provider. It shall only be present when idType = RES_MGMT.",
required=False,
allow_null=True,
allow_blank=True
)
class PlacementConstraintSerializer(serializers.Serializer):
affinityOrAntiAffinity = serializers.ChoiceField(
help_text="The type of the constraint.",
choices=["AFFINITY", "ANTI_AFFINITY"],
required=True
)
scope = serializers.ChoiceField(
help_text="The scope of the placement constraint indicating the category of the place where the constraint applies.",
choices=["NFVI_POP", "ZONE", "ZONE_GROUP", "NFVI_NODE"],
required=True
)
resource = ConstraintResourceRefSerializer(
help_text="References to resources in the constraint rule.",
many=True,
required=False
)
class VimConstraintSerializer(serializers.Serializer):
sameResourceGroup = serializers.BooleanField(
help_text="Set to true when the constraint applies not only to the same VIM connection, but also to the same infrastructure resource group.",
required=False
)
resource = ConstraintResourceRefSerializer(
help_text="References to resources in the constraint rule.",
many=True,
required=False
)
class GrantRequestLinksSerializer(serializers.Serializer):
vnfLcmOpOcc = LinkSerializer(
help_text="Related VNF lifecycle management operation occurrence.",
required=True
)
vnfInstance = LinkSerializer(
help_text="Related VNF instance.",
required=True
)
class GrantRequestSerializer(serializers.Serializer):
vnfInstanceId = serializers.CharField(
help_text="Identifier of the VNF instance which this grant request is related to.",
required=True
)
vnfLcmOpOccId = serializers.CharField(
help_text="The identifier of the VNF lifecycle management operation occurrence associated to the GrantRequest.",
required=False, # TODO required
allow_null=True,
allow_blank=True
)
vnfdId = serializers.CharField(
help_text="Identifier of the VNFD that defines the VNF for which the LCM operation is to be granted.",
required=False, # TODO required
allow_null=True,
allow_blank=True
)
flavourId = serializers.CharField(
help_text="Identifier of the VNF deployment flavour of the VNFD that defines the VNF for which the LCM operation is to be granted.",
required=False,
allow_null=True,
allow_blank=True
)
operation = serializers.ChoiceField(
help_text="The lifecycle management operation for which granting is requested.",
choices=["INSTANTIATE", "SCALE", "SCALE_TO_LEVEL", "CHANGE_FLAVOUR", "TERMINATE", "HEAL", "OPERATE", "CHANGE_EXT_CONN", "MODIFY_INFO"],
required=True
)
isAutomaticInvocation = serializers.BooleanField(
help_text="Set to true if this VNF LCM operation occurrence has been triggered by an automated procedure inside the VNFM, set to false otherwise.",
required=True
)
instantiationLevelId = serializers.CharField(
help_text="If operation=INSTANTIATE, the identifier of the instantiation level may be provided as an alternative way to define the resources to be added.",
required=False,
allow_null=True,
allow_blank=True
)
addResources = ResourceDefinitionSerializer(
help_text="List of resource definitions in the VNFD for resources to be added by the LCM operation.",
many=True,
required=False
)
tempResources = ResourceDefinitionSerializer(
help_text="List of resource definitions in the VNFD for resources to be temporarily instantiated during the runtime of the LCM operation.",
many=True,
required=False
)
removeResources = ResourceDefinitionSerializer(
help_text="Provides the definitions of resources to be removed by the LCM operation.",
many=True,
required=False
)
updateResources = ResourceDefinitionSerializer(
help_text="Provides the definitions of resources to be modified by the LCM operation.",
many=True,
required=False
)
placementConstraints = PlacementConstraintSerializer(
help_text="Placement constraints that the VNFM may send to the NFVO in order to influence the resource placement decision.",
many=True,
required=False
)
vimConstraints = VimConstraintSerializer(
help_text="Used by the VNFM to require that multiple resources are managed through the same VIM connection.",
many=True,
required=False
)
additionalParams = serializers.DictField(
help_text="Additional parameters passed by the VNFM.",
child=serializers.CharField(help_text="KeyValue Pairs", allow_blank=True),
required=False,
allow_null=True
)
_links = GrantRequestLinksSerializer(
help_text="Links to resources related to this request.",
required=False # TODO required
)
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