def add(request):
form = InstanceTaskForm()
if request.method == "POST":
form = InstanceTaskForm(request.POST)
if form.is_valid():
name = InstanceTask.get_random_name()
(instancetask, created) = InstanceTask.objects.get_or_create(
name=name,
user=form.cleaned_data["user"],
creator=request.user,
vcpu=form.cleaned_data["vcpu"],
memory=form.cleaned_data["memory"],
disk=form.cleaned_data["disk"],
storagepool=form.cleaned_data["storagepool"],
)
if created:
instancetask.save()
task = create_instance.delay(instancetask.name)
instancetask.task_id = task.id
instancetask.save()
messages.add_message(
request, persistent_messages.INFO, "Attempting to create Instance: %s" % (instancetask)
)
return redirect("/instance/")
return render_to_response("instance/add.html", {"form": form}, context_instance=RequestContext(request))
def add(request):
form = InstanceTaskForm()
if request.method == 'POST':
form = InstanceTaskForm(request.POST)
if form.is_valid():
# first check if we are not overallocating
hypervisor = form.cleaned_data['storagepool'].hypervisor
instances = Instance.objects.filter(volume__storagepool__hypervisor=hypervisor)
allocated_memory = 0
allocated_vcpus = 0
allocated_capacity = 0
for i in StoragePool.objects.filter(hypervisor=hypervisor):
allocated_capacity += i.allocated
for i in instances:
allocated_memory += i.memory.size
allocated_vcpus += i.vcpu
if allocated_memory + form.cleaned_data['memory'].size > hypervisor.maximum_memory.size:
messages.add_message(request, persistent_messages.ERROR,
'Unable to create instance, <a href="/hypervisor/%d/">Hypervisor</a> has insufficient Memory available to allocate' % (hypervisor.id))
elif allocated_vcpus + form.cleaned_data['vcpu'] > hypervisor.maximum_vcpus:
messages.add_message(request, persistent_messages.ERROR,
'Unable to create instance, <a href="/hypervisor/%d/">Hypervisor</a> has insufficient VCPUs available to allocate' % (hypervisor.id))
elif allocated_capacity + form.cleaned_data['capacity'].size > hypervisor.maximum_hdd.size:
messages.add_message(request, persistent_messages.ERROR,
'Unable to create instance, <a href="/hypervisor/%d/">Hypervisor</a> has insufficient Disk space available to allocate' % (hypervisor.id))
else:
# end
name = InstanceTask.get_random_name()
(instancetask, created) = InstanceTask.objects.get_or_create(
name=name,
user=form.cleaned_data['user'],
creator=request.user,
vcpu=form.cleaned_data['vcpu'],
memory=form.cleaned_data['memory'],
capacity=form.cleaned_data['capacity'],
storagepool=form.cleaned_data['storagepool'],
network=form.cleaned_data['network'],
)
if created: instancetask.save()
task = create_instance.delay(instancetask.name)
instancetask.task_id = task.id
instancetask.save()
messages.add_message(request, persistent_messages.INFO,
'Attempting to create Instance: %s' % (instancetask))
return redirect('/instance/')
return render_to_response('instance/add.html', {
'form': form,
},
context_instance=RequestContext(request))