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webvirtcloud/instances/api/viewsets.py
2022-09-05 15:35:51 +03:00

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9.3 KiB
Python

from django.shortcuts import get_object_or_404
from appsettings.settings import app_settings
from computes.models import Compute
from computes import utils
from instances.models import Flavor, Instance
from instances.views import get_instance
from instances.utils import migrate_instance
from instances.views import poweron, powercycle, poweroff, force_off, suspend, resume, destroy as instance_destroy
from rest_framework import status, viewsets, permissions
from rest_framework.decorators import action
from rest_framework.response import Response
from vrtManager import util
from vrtManager.create import wvmCreate
from .serializers import FlavorSerializer, InstanceSerializer, InstanceDetailsSerializer, MigrateSerializer, CreateInstanceSerializer
class InstancesViewSet(viewsets.ViewSet):
"""
A simple ViewSet for listing or retrieving ALL/Compute Instances.
"""
permission_classes = [permissions.IsAuthenticated]
def list(self, request):
if request.user.is_superuser or request.user.has_perm("instances.view_instances"):
queryset = Instance.objects.all().prefetch_related("userinstance_set")
else:
queryset = Instance.objects.filter(userinstance__user=request.user).prefetch_related("userinstance_set")
serializer = InstanceSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None, compute_pk=None):
queryset = get_instance(request.user, pk)
serializer = InstanceSerializer(queryset, context={'request': request})
return Response(serializer.data)
class InstanceViewSet(viewsets.ViewSet):
"""
A simple ViewSet for listing or retrieving Compute Instances.
"""
#serializer_class = CreateInstanceSerializer
permission_classes = [permissions.IsAuthenticated]
def list(self, request, compute_pk=None):
compute = get_object_or_404(Compute, pk=compute_pk)
utils.refresh_instance_database(compute)
queryset = Instance.objects.filter(compute=compute).prefetch_related("userinstance_set")
serializer = InstanceSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data)
def retrieve(self, request, pk=None, compute_pk=None):
queryset = get_instance(request.user, pk)
serializer = InstanceDetailsSerializer(queryset, context={'request': request})
return Response(serializer.data)
def destroy(self, request, pk=None, compute_pk=None):
instance_destroy(request, pk)
return Response({'status': 'Instance is destroyed'})
@action(detail=True, methods=['post'])
def poweron(self, request, pk=None):
poweron(request, pk)
return Response({'status': 'poweron command send'})
@action(detail=True, methods=['post'])
def poweroff(self, request, pk=None):
poweroff(request, pk)
return Response({'status': 'poweroff command send'})
@action(detail=True, methods=['post'])
def powercycle(self, request, pk=None):
powercycle(request, pk)
return Response({'status': 'powercycle command send'})
@action(detail=True, methods=['post'])
def forceoff(self, request, pk=None):
force_off(request, pk)
return Response({'status': 'force off command send'})
@action(detail=True, methods=['post'])
def suspend(self, request, pk=None):
suspend(request, pk)
return Response({'status': 'suspend command send'})
@action(detail=True, methods=['post'])
def resume(self, request, pk=None):
resume(request, pk)
return Response({'status': 'resume command send'})
class MigrateViewSet(viewsets.ViewSet):
"""
A viewset for migrating instances.
"""
serializer_class = MigrateSerializer
queryset = ""
def create(self, request):
serializer = MigrateSerializer(data=request.data)
if serializer.is_valid():
instance = serializer.validated_data['instance']
target_host = serializer.validated_data['target_compute']
live = serializer.validated_data['live']
unsafe = serializer.validated_data['unsafe']
xml_del = serializer.validated_data['xml_del']
offline = serializer.validated_data['offline']
autoconverge = serializer.validated_data['autoconverge']
postcopy = serializer.validated_data['postcopy']
compress = serializer.validated_data['compress']
migrate_instance(target_host, instance, request.user, live, unsafe, xml_del, offline, autoconverge, compress, postcopy)
return Response({'status': 'instance migrate is started'})
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
class FlavorViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows flavor to be viewed.
"""
queryset = Flavor.objects.all().order_by('id')
serializer_class = FlavorSerializer
permission_classes = [permissions.IsAuthenticated]
class CreateInstanceViewSet(viewsets.ViewSet):
"""
A viewset for creating instances.
"""
serializer_class = CreateInstanceSerializer
queryset = ""
def create(self, request, compute_pk=None, arch=None, machine=None):
serializer = CreateInstanceSerializer(data=request.data,
context = {'compute_pk': compute_pk,
'arch': arch,
'machine': machine
})
if serializer.is_valid():
volume_list = []
default_bus = app_settings.INSTANCE_VOLUME_DEFAULT_BUS
default_io = app_settings.INSTANCE_VOLUME_DEFAULT_IO
default_discard = app_settings.INSTANCE_VOLUME_DEFAULT_DISCARD
default_zeroes = app_settings.INSTANCE_VOLUME_DEFAULT_DETECT_ZEROES
default_scsi_disk_model = app_settings.INSTANCE_VOLUME_DEFAULT_SCSI_CONTROLLER
default_disk_format = app_settings.INSTANCE_VOLUME_DEFAULT_FORMAT
default_disk_owner_uid = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_UID)
default_disk_owner_gid = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_GID)
compute = Compute.objects.get(pk=compute_pk)
conn = wvmCreate(
compute.hostname,
compute.login,
compute.password,
compute.type,
)
path = conn.create_volume(
serializer.validated_data['storage'],
serializer.validated_data['name'],
serializer.validated_data['hdd_size'],
default_disk_format,
serializer.validated_data['meta_prealloc'],
default_disk_owner_uid,
default_disk_owner_gid,
)
volume = {}
firmware = {}
volume["device"] = "disk"
volume["path"] = path
volume["type"] = conn.get_volume_format_type(path)
volume["cache_mode"] = serializer.validated_data["cache_mode"]
volume["bus"] = default_bus
if volume["bus"] == "scsi":
volume["scsi_model"] = default_scsi_disk_model
volume["discard_mode"] = default_discard
volume["detect_zeroes_mode"] = default_zeroes
volume["io_mode"] = default_io
volume_list.append(volume)
if "UEFI" in serializer.validated_data['firmware']:
firmware["loader"] = serializer.validated_data['firmware'].split(":")[1].strip()
firmware["secure"] = "no"
firmware["readonly"] = "yes"
firmware["type"] = "pflash"
if "secboot" in firmware["loader"] and machine != "q35":
machine = "q35"
firmware["secure"] = "yes"
ret = conn.create_instance(
name=serializer.validated_data['name'],
memory=serializer.validated_data['memory'],
vcpu=serializer.validated_data['vcpu'],
vcpu_mode=serializer.validated_data['vcpu_mode'],
uuid=util.randomUUID(),
arch=arch,
machine=machine,
firmware=firmware,
volumes=volume_list,
networks=serializer.validated_data['networks'],
nwfilter=serializer.validated_data['nwfilter'],
graphics=serializer.validated_data['graphics'],
virtio=serializer.validated_data['virtio'],
listener_addr=serializer.validated_data['listener_addr'],
video=serializer.validated_data['video'],
console_pass=serializer.validated_data['console_pass'],
mac=serializer.validated_data['mac'],
qemu_ga=serializer.validated_data['qemu_ga'],
)
msg = f"Instance {serializer.validated_data['name']} is created"
return Response({'status': msg })
else:
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)