mirror of
https://github.com/retspen/webvirtcloud
synced 2024-12-25 23:55:24 +00:00
140 lines
6.5 KiB
Python
140 lines
6.5 KiB
Python
from django.shortcuts import render, get_object_or_404
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from django.http import HttpResponseRedirect
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from django.utils.translation import ugettext_lazy as _
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from django.core.urlresolvers import reverse
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from computes.models import Compute
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from create.models import Flavor
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from create.forms import FlavorAddForm, NewVMForm
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from instances.models import Instance
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from vrtManager.create import wvmCreate
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from vrtManager import util
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from libvirt import libvirtError
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def create_instance(request, compute_id):
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"""
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:param request:
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:return:
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"""
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if not request.user.is_authenticated():
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return HttpResponseRedirect(reverse('index'))
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if not request.user.is_superuser:
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return HttpResponseRedirect(reverse('index'))
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conn = None
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error_messages = []
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storages = []
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networks = []
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meta_prealloc = False
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computes = Compute.objects.all()
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compute = get_object_or_404(Compute, pk=compute_id)
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flavors = Flavor.objects.filter().order_by('id')
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try:
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conn = wvmCreate(compute.hostname,
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compute.login,
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compute.password,
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compute.type)
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storages = sorted(conn.get_storages())
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networks = sorted(conn.get_networks())
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instances = conn.get_instances()
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get_images = sorted(conn.get_storages_images())
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mac_auto = util.randomMAC()
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except libvirtError as lib_err:
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error_messages.append(lib_err)
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if conn:
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if not storages:
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msg = _("You haven't defined have any storage pools")
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error_messages.append(msg)
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if not networks:
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msg = _("You haven't defined have any network pools")
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error_messages.append(msg)
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if request.method == 'POST':
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if 'create_flavor' in request.POST:
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form = FlavorAddForm(request.POST)
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if form.is_valid():
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data = form.cleaned_data
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create_flavor = Flavor(label=data['label'],
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vcpu=data['vcpu'],
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memory=data['memory'],
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disk=data['disk'])
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create_flavor.save()
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return HttpResponseRedirect(request.get_full_path())
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if 'delete_flavor' in request.POST:
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flavor_id = request.POST.get('flavor', '')
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delete_flavor = Flavor.objects.get(id=flavor_id)
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delete_flavor.delete()
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return HttpResponseRedirect(request.get_full_path())
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if 'create_xml' in request.POST:
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xml = request.POST.get('from_xml', '')
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try:
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name = util.get_xml_path(xml, '/domain/name')
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except util.libxml2.parserError:
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name = None
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if name in instances:
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error_msg = _("A virtual machine with this name already exists")
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error_messages.append(error_msg)
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else:
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try:
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conn._defineXML(xml)
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return HttpResponseRedirect(reverse('instance', args=[compute_id, name]))
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except libvirtError as lib_err:
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error_messages.append(lib_err.message)
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if 'create' in request.POST:
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volumes = {}
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form = NewVMForm(request.POST)
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if form.is_valid():
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data = form.cleaned_data
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if data['meta_prealloc']:
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meta_prealloc = True
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if instances:
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if data['name'] in instances:
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msg = _("A virtual machine with this name already exists")
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error_messages.append(msg)
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if not error_messages:
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if data['hdd_size']:
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if not data['mac']:
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error_msg = _("No Virtual Machine MAC has been entered")
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error_messages.append(error_msg)
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else:
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try:
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path = conn.create_volume(data['storage'], data['name'], data['hdd_size'],
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metadata=meta_prealloc)
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volumes[path] = conn.get_volume_type(path)
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except libvirtError as lib_err:
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error_messages.append(lib_err.message)
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elif data['template']:
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templ_path = conn.get_volume_path(data['template'])
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clone_path = conn.clone_from_template(data['name'], templ_path, metadata=meta_prealloc)
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volumes[clone_path] = conn.get_volume_type(clone_path)
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else:
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if not data['images']:
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error_msg = _("First you need to create or select an image")
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error_messages.append(error_msg)
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else:
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for vol in data['images'].split(','):
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try:
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path = conn.get_volume_path(vol)
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volumes[path] = conn.get_volume_type(path)
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except libvirtError as lib_err:
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error_messages.append(lib_err.message)
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if not error_messages:
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uuid = util.randomUUID()
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try:
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conn.create_instance(data['name'], data['memory'], data['vcpu'], data['host_model'],
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uuid, volumes, data['networks'], data['virtio'], data['mac'])
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create_instance = Instance(compute_id=compute_id, name=data['name'], uuid=uuid)
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create_instance.save()
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return HttpResponseRedirect(reverse('instance', args=[compute_id, data['name']]))
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except libvirtError as lib_err:
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if data['hdd_size']:
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conn.delete_volume(volumes.keys()[0])
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error_messages.append(lib_err)
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conn.close()
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return render(request, 'create_instance.html', locals())
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