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97 lines
3.4 KiB
Python
97 lines
3.4 KiB
Python
from django.db.models import Count, Prefetch
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from django.shortcuts import get_object_or_404
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from rest_framework.decorators import action
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from rest_framework.response import Response
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from dcim.models import Device
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from extras.api.serializers import RenderedGraphSerializer
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from extras.api.views import CustomFieldModelViewSet
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from extras.models import Graph
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from ipam.models import VLAN
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from utilities.api import ModelViewSet
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from utilities.utils import get_subquery
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from virtualization import filters
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from virtualization.models import Cluster, ClusterGroup, ClusterType, VirtualMachine, VMInterface
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from . import serializers
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#
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# Clusters
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#
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class ClusterTypeViewSet(ModelViewSet):
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queryset = ClusterType.objects.annotate(
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cluster_count=Count('clusters')
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).order_by(*ClusterType._meta.ordering)
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serializer_class = serializers.ClusterTypeSerializer
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filterset_class = filters.ClusterTypeFilterSet
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class ClusterGroupViewSet(ModelViewSet):
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queryset = ClusterGroup.objects.annotate(
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cluster_count=Count('clusters')
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).order_by(*ClusterGroup._meta.ordering)
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serializer_class = serializers.ClusterGroupSerializer
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filterset_class = filters.ClusterGroupFilterSet
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class ClusterViewSet(CustomFieldModelViewSet):
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queryset = Cluster.objects.prefetch_related(
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'type', 'group', 'tenant', 'site', 'tags'
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).annotate(
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device_count=get_subquery(Device, 'cluster'),
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virtualmachine_count=get_subquery(VirtualMachine, 'cluster')
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).order_by(*Cluster._meta.ordering)
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serializer_class = serializers.ClusterSerializer
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filterset_class = filters.ClusterFilterSet
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#
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# Virtual machines
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#
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class VirtualMachineViewSet(CustomFieldModelViewSet):
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queryset = VirtualMachine.objects.prefetch_related(
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'cluster__site', 'role', 'tenant', 'platform', 'primary_ip4', 'primary_ip6', 'tags'
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)
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filterset_class = filters.VirtualMachineFilterSet
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def get_serializer_class(self):
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"""
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Select the specific serializer based on the request context.
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If the `brief` query param equates to True, return the NestedVirtualMachineSerializer
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If the `exclude` query param includes `config_context` as a value, return the VirtualMachineSerializer
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Else, return the VirtualMachineWithConfigContextSerializer
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"""
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request = self.get_serializer_context()['request']
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if request.query_params.get('brief', False):
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return serializers.NestedVirtualMachineSerializer
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elif 'config_context' in request.query_params.get('exclude', []):
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return serializers.VirtualMachineSerializer
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return serializers.VirtualMachineWithConfigContextSerializer
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class VMInterfaceViewSet(ModelViewSet):
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queryset = VMInterface.objects.prefetch_related(
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Prefetch('tagged_vlans', queryset=VLAN.objects.unrestricted()),
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'virtual_machine', 'tags'
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)
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serializer_class = serializers.VMInterfaceSerializer
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filterset_class = filters.VMInterfaceFilterSet
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@action(detail=True)
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def graphs(self, request, pk):
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"""
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A convenience method for rendering graphs for a particular VM interface.
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"""
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vminterface = get_object_or_404(self.queryset, pk=pk)
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queryset = Graph.objects.restrict(request.user).filter(type__model='vminterface')
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serializer = RenderedGraphSerializer(queryset, many=True, context={'graphed_object': vminterface})
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return Response(serializer.data)
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