261 lines
8.7 KiB
Python
261 lines
8.7 KiB
Python
from django.db import transaction
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from django.shortcuts import render
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from django.utils import timezone
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from django.contrib.auth.models import User
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from django.shortcuts import get_object_or_404
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from rest_framework import viewsets, permissions
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from rest_framework.response import Response
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from rest_framework.exceptions import ValidationError
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from .models import VMHost, VMProduct, VMSnapshotProduct, VMDiskProduct, VMDiskImageProduct, VMCluster
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from uncloud_pay.models import Order, BillingAddress
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from .serializers import *
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from uncloud_pay.helpers import ProductViewSet
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import datetime
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###
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# Generic disk image views. Do not require orders / billing.
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class VMDiskImageProductViewSet(ProductViewSet):
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = VMDiskImageProductSerializer
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def get_queryset(self):
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if self.request.user.is_superuser:
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obj = VMDiskImageProduct.objects.all()
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else:
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obj = VMDiskImageProduct.objects.filter(owner=self.request.user) | VMDiskImageProduct.objects.filter(is_public=True)
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return obj
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def create(self, request):
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serializer = VMDiskImageProductSerializer(data=request.data, context={'request': request})
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serializer.is_valid(raise_exception=True)
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# did not specify size NOR import url?
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if not serializer.validated_data['size_in_gb']:
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if not serializer.validated_data['import_url']:
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raise ValidationError(detail={ 'error_mesage': 'Specify either import_url or size_in_gb' })
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serializer.save(owner=request.user)
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return Response(serializer.data)
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class VMDiskImageProductPublicViewSet(viewsets.ReadOnlyModelViewSet):
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = VMDiskImageProductSerializer
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def get_queryset(self):
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return VMDiskImageProduct.objects.filter(is_public=True)
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###
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# User VM disk and snapshots.
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class VMDiskProductViewSet(viewsets.ModelViewSet):
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"""
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Let a user modify their own VMDisks
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"""
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = VMDiskProductSerializer
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def get_queryset(self):
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if self.request.user.is_superuser:
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obj = VMDiskProduct.objects.all()
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else:
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obj = VMDiskProduct.objects.filter(owner=self.request.user)
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return obj
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def create(self, request):
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serializer = VMDiskProductSerializer(data=request.data, context={'request': request})
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serializer.is_valid(raise_exception=True)
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# get disk size from image, if not specified
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if not 'size_in_gb' in serializer.validated_data:
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size_in_gb = serializer.validated_data['image'].size_in_gb
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else:
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size_in_gb = serializer.validated_data['size_in_gb']
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if size_in_gb < serializer.validated_data['image'].size_in_gb:
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raise ValidationError(detail={ 'error_mesage': 'Size is smaller than original image' })
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serializer.save(owner=request.user, size_in_gb=size_in_gb)
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return Response(serializer.data)
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class VMSnapshotProductViewSet(viewsets.ModelViewSet):
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = VMSnapshotProductSerializer
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def get_queryset(self):
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if self.request.user.is_superuser:
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obj = VMSnapshotProduct.objects.all()
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else:
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obj = VMSnapshotProduct.objects.filter(owner=self.request.user)
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return obj
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def create(self, request):
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serializer = VMSnapshotProductSerializer(data=request.data, context={'request': request})
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# This verifies that the VM belongs to the request user
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serializer.is_valid(raise_exception=True)
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vm = vm=serializer.validated_data['vm']
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disks = VMDiskProduct.objects.filter(vm=vm)
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ssds_size = sum([d.size_in_gb for d in disks if d.image.storage_class == 'ssd'])
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hdds_size = sum([d.size_in_gb for d in disks if d.image.storage_class == 'hdd'])
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recurring_price = serializer.pricing['per_gb_ssd'] * ssds_size + serializer.pricing['per_gb_hdd'] * hdds_size
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recurring_period = serializer.pricing['recurring_period']
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# Create order
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now = datetime.datetime.now()
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order = Order(owner=request.user,
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recurring_period=recurring_period)
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order.save()
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order.add_record(one_time_price=0,
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recurring_price=recurring_price,
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description="Snapshot of VM {} from {}".format(vm, now))
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serializer.save(owner=request.user,
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order=order,
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gb_ssd=ssds_size,
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gb_hdd=hdds_size)
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return Response(serializer.data)
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###
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# User VMs.
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class VMProductViewSet(ProductViewSet):
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permission_classes = [permissions.IsAuthenticated]
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def get_queryset(self):
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if self.request.user.is_superuser:
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obj = VMWithOSProduct.objects.all()
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else:
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obj = VMWithOSProduct.objects.filter(owner=self.request.user)
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return obj
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def get_serializer_class(self):
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if self.action == 'create':
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return OrderVMProductSerializer
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else:
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return VMProductSerializer
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# Use a database transaction so that we do not get half-created structure
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# if something goes wrong.
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@transaction.atomic
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def create(self, request):
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# Extract serializer data.
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serializer = self.get_serializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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order_recurring_period = serializer.validated_data.pop("recurring_period")
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# Create disk image.
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disk = VMDiskProduct(owner=request.user,
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**serializer.validated_data.pop("primary_disk"))
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vm = VMWithOSProduct(owner=request.user, primary_disk=disk,
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**serializer.validated_data)
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disk.vm = vm # XXX: Is this really needed?
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# Create VM and Disk orders.
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vm_order = Order.from_product(
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vm,
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recurring_period=order_recurring_period,
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starting_date=timezone.now()
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)
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disk_order = Order.from_product(
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disk,
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recurring_period=order_recurring_period,
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starting_date=timezone.now(),
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depends_on=vm_order
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)
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# Commit to DB.
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vm.order = vm_order
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vm.save()
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vm_order.save()
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disk.order = disk_order
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disk_order.save()
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disk.save()
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return Response(VMProductSerializer(vm, context={'request': request}).data)
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class NicoVMProductViewSet(ProductViewSet):
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = NicoVMProductSerializer
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def get_queryset(self):
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obj = VMProduct.objects.filter(owner=self.request.user)
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return obj
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def create(self, request):
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serializer = self.serializer_class(data=request.data, context={'request': request})
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serializer.is_valid(raise_exception=True)
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vm = serializer.save(owner=request.user)
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return Response(serializer.data)
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###
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# Admin stuff.
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class VMHostViewSet(viewsets.ModelViewSet):
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serializer_class = VMHostSerializer
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queryset = VMHost.objects.all()
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permission_classes = [permissions.IsAdminUser]
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class VMClusterViewSet(viewsets.ModelViewSet):
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serializer_class = VMClusterSerializer
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queryset = VMCluster.objects.all()
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permission_classes = [permissions.IsAdminUser]
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##
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# Nico's playground.
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# Also create:
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# - /dcl/available_os
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# Basically a view of public and my disk images
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# -
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class DCLCreateVMProductViewSet(ProductViewSet):
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"""
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This view resembles the way how DCL VMs are created by default.
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The user chooses an OS, os disk size, ram, cpu and whether or not to have a mapped IPv4 address
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"""
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permission_classes = [permissions.IsAuthenticated]
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serializer_class = DCLVMProductSerializer
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def get_queryset(self):
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return VMProduct.objects.filter(owner=self.request.user)
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# Use a database transaction so that we do not get half-created structure
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# if something goes wrong.
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@transaction.atomic
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def create(self, request):
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# Extract serializer data.
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serializer = VMProductSerializer(data=request.data, context={'request': request})
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serializer.is_valid(raise_exception=True)
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order_recurring_period = serializer.validated_data.pop("recurring_period")
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# Create base order.
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order = Order.objects.create(
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recurring_period=order_recurring_period,
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owner=request.user
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)
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order.save()
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# Create VM.
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vm = serializer.save(owner=request.user, order=order)
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return Response(serializer.data)
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