import os
import time
import json
import socket
import crypt
from string import letters, digits
from random import choice
from bisect import insort
from django.http import HttpResponse, HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.shortcuts import render, get_object_or_404
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.decorators import login_required
from computes.models import Compute
from instances.models import Instance
from accounts.models import UserInstance, UserSSHKey
from vrtManager.hostdetails import wvmHostDetails
from vrtManager.instance import wvmInstance, wvmInstances
from vrtManager.connection import connection_manager
from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE
from webvirtcloud.settings import QEMU_KEYMAPS, QEMU_CONSOLE_TYPES
from logs.views import addlogmsg
from django.conf import settings
@login_required
def index(request):
"""
:param request:
:return:
"""
return HttpResponseRedirect(reverse('instances'))
@login_required
def instances(request):
"""
:param request:
:return:
"""
error_messages = []
all_host_vms = {}
all_user_vms = {}
computes = Compute.objects.all()
if not request.user.is_superuser:
user_instances = UserInstance.objects.filter(user_id=request.user.id)
for usr_inst in user_instances:
if connection_manager.host_is_up(usr_inst.instance.compute.type,
usr_inst.instance.compute.hostname):
conn = wvmHostDetails(usr_inst.instance.compute,
usr_inst.instance.compute.login,
usr_inst.instance.compute.password,
usr_inst.instance.compute.type)
all_user_vms[usr_inst] = conn.get_user_instances(usr_inst.instance.name)
all_user_vms[usr_inst].update({'compute_id': usr_inst.instance.compute.id})
else:
for comp in computes:
if connection_manager.host_is_up(comp.type, comp.hostname):
try:
conn = wvmHostDetails(comp, comp.login, comp.password, comp.type)
if conn.get_host_instances():
all_host_vms[comp.id, comp.name] = conn.get_host_instances()
for vm, info in conn.get_host_instances().items():
try:
check_uuid = Instance.objects.get(compute_id=comp.id, name=vm)
if check_uuid.uuid != info['uuid']:
check_uuid.save()
all_host_vms[comp.id, comp.name][vm]['is_template'] = check_uuid.is_template
except Instance.DoesNotExist:
check_uuid = Instance(compute_id=comp.id, name=vm, uuid=info['uuid'])
check_uuid.save()
conn.close()
except libvirtError as lib_err:
error_messages.append(lib_err)
if request.method == 'POST':
name = request.POST.get('name', '')
compute_id = request.POST.get('compute_id', '')
instance = Instance.objects.get(compute_id=compute_id, name=name)
try:
conn = wvmInstances(instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type)
if 'poweron' in request.POST:
msg = _("Power On")
addlogmsg(request.user.username, instance.name, msg)
conn.start(name)
return HttpResponseRedirect(request.get_full_path())
if 'poweroff' in request.POST:
msg = _("Power Off")
addlogmsg(request.user.username, instance.name, msg)
conn.shutdown(name)
return HttpResponseRedirect(request.get_full_path())
if 'powercycle' in request.POST:
msg = _("Power Cycle")
conn.force_shutdown(name)
conn.start(name)
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path())
if 'getvvfile' in request.POST:
msg = _("Send console.vv file")
addlogmsg(request.user.username, instance.name, msg)
response = HttpResponse(content='', content_type='application/x-virt-viewer', status=200, reason=None, charset='utf-8')
response.writelines('[virt-viewer]\n')
response.writelines('type=' + conn.graphics_type(name) + '\n')
response.writelines('host=' + conn.graphics_listen(name) + '\n')
response.writelines('port=' + conn.graphics_port(name) + '\n')
response.writelines('title=' + conn.domain_name(name) + '\n')
response.writelines('password=' + conn.graphics_passwd(name) + '\n')
response.writelines('enable-usbredir=1\n')
response.writelines('disable-effects=all\n')
response.writelines('secure-attention=ctrl+alt+ins\n')
response.writelines('release-cursor=ctrl+alt\n')
response.writelines('fullscreen=1\n')
response.writelines('delete-this-file=1\n')
response['Content-Disposition'] = 'attachment; filename="console.vv"'
return response
if request.user.is_superuser:
if 'suspend' in request.POST:
msg = _("Suspend")
addlogmsg(request.user.username, instance.name, msg)
conn.suspend(name)
return HttpResponseRedirect(request.get_full_path())
if 'resume' in request.POST:
msg = _("Resume")
addlogmsg(request.user.username, instance.name, msg)
conn.resume(name)
return HttpResponseRedirect(request.get_full_path())
except libvirtError as lib_err:
error_messages.append(lib_err)
addlogmsg(request.user.username, instance.name, lib_err.message)
return render(request, 'instances.html', locals())
@login_required
def instance(request, compute_id, vname):
"""
:param request:
:return:
"""
error_messages = []
messages = []
compute = get_object_or_404(Compute, pk=compute_id)
computes = Compute.objects.all()
computes_count = len(computes)
publickeys = UserSSHKey.objects.filter(user_id=request.user.id)
keymaps = QEMU_KEYMAPS
console_types = QEMU_CONSOLE_TYPES
try:
userinstace = UserInstance.objects.get(instance__compute_id=compute_id,
instance__name=vname,
user__id=request.user.id)
except UserInstance.DoesNotExist:
userinstace = None
if not request.user.is_superuser:
if not userinstace:
return HttpResponseRedirect(reverse('index'))
def show_clone_disk(disks, vname=''):
clone_disk = []
for disk in disks:
if disk['image'] is None:
continue
if disk['image'].count("-") and disk['image'].rsplit("-", 1)[0] == vname:
name, suffix = disk['image'].rsplit("-", 1)
image = name + "-clone" + "-" + suffix
elif disk['image'].count(".") and len(disk['image'].rsplit(".", 1)[1]) <= 7:
name, suffix = disk['image'].rsplit(".", 1)
image = name + "-clone" + "." + suffix
else:
image = disk['image'] + "-clone"
clone_disk.append(
{'dev': disk['dev'], 'storage': disk['storage'],
'image': image, 'format': disk['format']})
return clone_disk
def filesizefstr(size_str):
if size_str == '':
return 0
size_str = size_str.encode('ascii', 'ignore').upper().translate(None, " B")
if 'K' == size_str[-1]:
return long(float(size_str[:-1]))<<10
elif 'M' == size_str[-1]:
return long(float(size_str[:-1]))<<20
elif 'G' == size_str[-1]:
return long(float(size_str[:-1]))<<30
elif 'T' == size_str[-1]:
return long(float(size_str[:-1]))<<40
elif 'P' == size_str[-1]:
return long(float(size_str[:-1]))<<50
else:
return long(float(size_str))
def get_clone_free_names(size=10):
prefix = settings.CLONE_INSTANCE_DEFAULT_PREFIX
free_names = []
existing_names = [i.name for i in Instance.objects.filter(name__startswith=prefix)]
index = 1
while len(free_names) < size:
new_name = prefix + str(index)
if new_name not in existing_names:
free_names.append(new_name)
index += 1
return free_names
def check_user_quota(instance, cpu, memory):
user_instances = UserInstance.objects.filter(user_id=request.user.id)
instance += len(user_instances)
for usr_inst in user_instances:
if connection_manager.host_is_up(usr_inst.instance.compute.type,
usr_inst.instance.compute.hostname):
conn = wvmHostDetails(usr_inst.instance.compute,
usr_inst.instance.compute.login,
usr_inst.instance.compute.password,
usr_inst.instance.compute.type)
wvm_instance = conn.get_user_instances(usr_inst.instance.name)
cpu += int(wvm_instance['vcpu'])
memory += int(wvm_instance['memory'])
ua = request.user.userattributes
if ua.max_instances > 0 and instance > ua.max_instances:
return "instance"
if ua.max_cpus > 0 and cpu > ua.max_cpus:
return "cpu"
if ua.max_memory > 0 and memory > ua.max_memory:
return "memory"
return ""
try:
conn = wvmInstance(compute.hostname,
compute.login,
compute.password,
compute.type,
vname)
status = conn.get_status()
autostart = conn.get_autostart()
vcpu = conn.get_vcpu()
cur_vcpu = conn.get_cur_vcpu()
uuid = conn.get_uuid()
memory = conn.get_memory()
cur_memory = conn.get_cur_memory()
title = conn.get_title()
description = conn.get_description()
disks = conn.get_disk_device()
media = conn.get_media_device()
networks = conn.get_net_device()
media_iso = sorted(conn.get_iso_media())
vcpu_range = conn.get_max_cpus()
memory_range = [256, 512, 768, 1024, 2048, 4096, 6144, 8192, 16384]
if memory not in memory_range:
insort(memory_range, memory)
if cur_memory not in memory_range:
insort(memory_range, cur_memory)
memory_host = conn.get_max_memory()
vcpu_host = len(vcpu_range)
telnet_port = conn.get_telnet_port()
console_type = conn.get_console_type()
console_port = conn.get_console_port()
console_keymap = conn.get_console_keymap()
snapshots = sorted(conn.get_snapshot(), reverse=True)
inst_xml = conn._XMLDesc(VIR_DOMAIN_XML_SECURE)
has_managed_save_image = conn.get_managed_save_image()
clone_disks = show_clone_disk(disks, vname)
console_passwd = conn.get_console_passwd()
clone_free_names = get_clone_free_names()
try:
instance = Instance.objects.get(compute_id=compute_id, name=vname)
if instance.uuid != uuid:
instance.uuid = uuid
instance.save()
except Instance.DoesNotExist:
instance = Instance(compute_id=compute_id, name=vname, uuid=uuid)
instance.save()
if request.method == 'POST':
if 'poweron' in request.POST:
conn.start()
msg = _("Power On")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#poweron')
if 'powercycle' in request.POST:
conn.force_shutdown()
conn.start()
msg = _("Power Cycle")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#powercycle')
if 'poweroff' in request.POST:
conn.shutdown()
msg = _("Power Off")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#poweroff')
if 'powerforce' in request.POST:
conn.force_shutdown()
msg = _("Force Off")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#powerforce')
if 'delete' in request.POST:
if conn.get_status() == 1:
conn.force_shutdown()
if request.POST.get('delete_disk', ''):
conn.delete_disk()
conn.delete()
instance = Instance.objects.get(compute_id=compute_id, name=vname)
instance_name = instance.name
instance.delete()
try:
del_userinstance = UserInstance.objects.filter(instance__compute_id=compute_id, instance__name=vname)
del_userinstance.delete()
except UserInstance.DoesNotExist:
pass
msg = _("Destroy")
addlogmsg(request.user.username, instance_name, msg)
return HttpResponseRedirect(reverse('instances'))
if 'rootpasswd' in request.POST:
passwd = request.POST.get('passwd', '')
passwd_hash = crypt.crypt(passwd, '$6$kgPoiREy')
data = {'action': 'password', 'passwd': passwd_hash, 'vname': vname}
if conn.get_status() == 5:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((compute.hostname, 16510))
s.send(json.dumps(data))
result = json.loads(s.recv(1024))
s.close()
msg = _("Reset root password")
addlogmsg(request.user.username, instance.name, msg)
if result['return'] == 'success':
messages.append(msg)
else:
error_messages.append(msg)
else:
msg = _("Please shutdow down your instance and then try again")
error_messages.append(msg)
if 'addpublickey' in request.POST:
sshkeyid = request.POST.get('sshkeyid', '')
publickey = UserSSHKey.objects.get(id=sshkeyid)
data = {'action': 'publickey', 'key': publickey.keypublic, 'vname': vname}
if conn.get_status() == 5:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((compute.hostname, 16510))
s.send(json.dumps(data))
result = json.loads(s.recv(1024))
s.close()
msg = _("Installed new ssh public key %s" % publickey.keyname)
addlogmsg(request.user.username, instance.name, msg)
if result['return'] == 'success':
messages.append(msg)
else:
error_messages.append(msg)
else:
msg = _("Please shutdow down your instance and then try again")
error_messages.append(msg)
if 'resize' in request.POST:
new_vcpu = request.POST.get('vcpu', '')
new_cur_vcpu = request.POST.get('cur_vcpu', '')
new_memory = request.POST.get('memory', '')
new_memory_custom = request.POST.get('memory_custom', '')
if new_memory_custom:
new_memory = new_memory_custom
new_cur_memory = request.POST.get('cur_memory', '')
new_cur_memory_custom = request.POST.get('cur_memory_custom', '')
if new_cur_memory_custom:
new_cur_memory = new_cur_memory_custom
disks_new = []
for disk in disks:
input_disk_size = filesizefstr(request.POST.get('disk_size_' + disk['dev'], ''))
if input_disk_size > disk['size']+(64<<20):
disk['size_new'] = input_disk_size
disks_new.append(disk)
quota_msg = check_user_quota(0, int(new_vcpu)-vcpu, int(new_memory)-memory)
if not request.user.is_superuser and quota_msg:
msg = _("User %s quota reached, cannot resize '%s'!" % (quota_msg, instance.name))
error_messages.append(msg)
else:
cur_memory = new_cur_memory
memory = new_memory
cur_vcpu = new_cur_vcpu
vcpu = new_vcpu
conn.resize(cur_memory, memory, cur_vcpu, vcpu, disks_new)
msg = _("Resize")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#resize')
if 'umount_iso' in request.POST:
image = request.POST.get('path', '')
dev = request.POST.get('umount_iso', '')
conn.umount_iso(dev, image)
msg = _("Mount media")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#media')
if 'mount_iso' in request.POST:
image = request.POST.get('media', '')
dev = request.POST.get('mount_iso', '')
conn.mount_iso(dev, image)
msg = _("Umount media")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#media')
if 'snapshot' in request.POST:
name = request.POST.get('name', '')
conn.create_snapshot(name)
msg = _("New snapshot")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#restoresnapshot')
if 'delete_snapshot' in request.POST:
snap_name = request.POST.get('name', '')
conn.snapshot_delete(snap_name)
msg = _("Delete snapshot")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#restoresnapshot')
if 'revert_snapshot' in request.POST:
snap_name = request.POST.get('name', '')
conn.snapshot_revert(snap_name)
msg = _("Successful revert snapshot: ")
msg += snap_name
messages.append(msg)
msg = _("Revert snapshot")
addlogmsg(request.user.username, instance.name, msg)
if request.user.is_superuser:
if 'suspend' in request.POST:
conn.suspend()
msg = _("Suspend")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#resume')
if 'resume' in request.POST:
conn.resume()
msg = _("Resume")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#suspend')
if 'set_autostart' in request.POST:
conn.set_autostart(1)
msg = _("Set autostart")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#autostart')
if 'unset_autostart' in request.POST:
conn.set_autostart(0)
msg = _("Unset autostart")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#autostart')
if 'change_xml' in request.POST:
exit_xml = request.POST.get('inst_xml', '')
if exit_xml:
conn._defineXML(exit_xml)
msg = _("Edit XML")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#xmledit')
if 'set_console_passwd' in request.POST:
if request.POST.get('auto_pass', ''):
passwd = ''.join([choice(letters + digits) for i in xrange(12)])
else:
passwd = request.POST.get('console_passwd', '')
clear = request.POST.get('clear_pass', False)
if clear:
passwd = ''
if not passwd and not clear:
msg = _("Enter the console password or select Generate")
error_messages.append(msg)
if not error_messages:
if not conn.set_console_passwd(passwd):
msg = _("Error setting console password. You should check that your instance have an graphic device.")
error_messages.append(msg)
else:
msg = _("Set VNC password")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#vncsettings')
if 'set_console_keymap' in request.POST:
keymap = request.POST.get('console_keymap', '')
clear = request.POST.get('clear_keymap', False)
if clear:
conn.set_console_keymap('')
else:
conn.set_console_keymap(keymap)
msg = _("Set VNC keymap")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#vncsettings')
if 'set_console_type' in request.POST:
console_type = request.POST.get('console_type', '')
conn.set_console_type(console_type)
msg = _("Set VNC type")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#vncsettings')
if 'migrate' in request.POST:
compute_id = request.POST.get('compute_id', '')
live = request.POST.get('live_migrate', False)
unsafe = request.POST.get('unsafe_migrate', False)
xml_del = request.POST.get('xml_delete', False)
new_compute = Compute.objects.get(id=compute_id)
conn_migrate = wvmInstances(new_compute.hostname,
new_compute.login,
new_compute.password,
new_compute.type)
conn_migrate.moveto(conn, vname, live, unsafe, xml_del)
conn_migrate.define_move(vname)
conn_migrate.close()
msg = _("Migrate")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(reverse('instance', args=[compute_id, vname]))
if 'change_network' in request.POST:
network_data = {}
for post in request.POST:
if post.startswith('net-'):
network_data[post] = request.POST.get(post, '')
conn.change_network(network_data)
msg = _("Edit network")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#network')
if 'change_options' in request.POST:
instance.is_template = request.POST.get('is_template', False)
instance.save()
options = {}
for post in request.POST:
if post in ['title', 'description']:
options[post] = request.POST.get(post, '')
conn.set_options(options)
msg = _("Edit options")
addlogmsg(request.user.username, instance.name, msg)
return HttpResponseRedirect(request.get_full_path() + '#options')
if request.user.is_superuser or request.user.userattributes.can_clone_instances:
if 'clone' in request.POST:
clone_data = {}
clone_data['name'] = request.POST.get('name', '')
quota_msg = check_user_quota(1, conn.get_vcpu(), conn.get_memory())
check_instance = Instance.objects.filter(name=clone_data['name'])
if not request.user.is_superuser and quota_msg:
msg = _("User %s quota reached, cannot create '%s'!" % (quota_msg, clone_data['name']))
error_messages.append(msg)
elif check_instance:
msg = _("Instance '%s' already exists!" % clone_data['name'])
error_messages.append(msg)
else:
for post in request.POST:
clone_data[post] = request.POST.get(post, '')
new_uuid = conn.clone_instance(clone_data)
new_instance = Instance(compute_id=compute_id, name=clone_data['name'], uuid=new_uuid)
new_instance.save()
userinstance = UserInstance(instance_id=new_instance.id, user_id=request.user.id, is_delete=True)
userinstance.save()
msg = _("Clone of '%s'" % instance.name)
addlogmsg(request.user.username, new_instance.name, msg)
return HttpResponseRedirect(reverse('instance', args=[compute_id, clone_data['name']]))
conn.close()
except libvirtError as lib_err:
error_messages.append(lib_err.message)
addlogmsg(request.user.username, vname, lib_err.message)
return render(request, 'instance.html', locals())
@login_required
def inst_status(request, compute_id, vname):
"""
:param request:
:return:
"""
compute = get_object_or_404(Compute, pk=compute_id)
response = HttpResponse()
response['Content-Type'] = "text/javascript"
try:
conn = wvmInstance(compute.hostname,
compute.login,
compute.password,
compute.type,
vname)
data = json.dumps({'status': conn.get_status()})
conn.close()
except libvirtError:
data = json.dumps({'error': 'Error 500'})
response.write(data)
return response
@login_required
def inst_graph(request, compute_id, vname):
"""
:param request:
:return:
"""
datasets = {}
json_blk = []
datasets_blk = {}
json_net = []
datasets_net = {}
cookies = {}
points = 5
curent_time = time.strftime("%H:%M:%S")
compute = get_object_or_404(Compute, pk=compute_id)
response = HttpResponse()
response['Content-Type'] = "text/javascript"
def check_points(dataset):
if len(dataset) > points:
dataset.pop(0)
return dataset
try:
conn = wvmInstance(compute.hostname,
compute.login,
compute.password,
compute.type,
vname)
cpu_usage = conn.cpu_usage()
blk_usage = conn.disk_usage()
net_usage = conn.net_usage()
conn.close()
try:
cookies['cpu'] = request.COOKIES['cpu']
cookies['blk'] = request.COOKIES['blk']
cookies['net'] = request.COOKIES['net']
cookies['timer'] = request.COOKIES['timer']
except KeyError:
cookies['cpu'] = None
cookies['blk'] = None
cookies['net'] = None
if not cookies['cpu']:
datasets['cpu'] = [0] * points
datasets['timer'] = [0] * points
else:
datasets['cpu'] = eval(cookies['cpu'])
datasets['timer'] = eval(cookies['timer'])
datasets['timer'].append(curent_time)
datasets['cpu'].append(int(cpu_usage['cpu']))
datasets['timer'] = check_points(datasets['timer'])
datasets['cpu'] = check_points(datasets['cpu'])
for blk in blk_usage:
if not cookies['blk']:
datasets_wr = [0] * points
datasets_rd = [0] * points
else:
datasets['blk'] = eval(cookies['blk'])
datasets_rd = datasets['blk'][blk['dev']][0]
datasets_wr = datasets['blk'][blk['dev']][1]
datasets_rd.append(int(blk['rd']) / 1048576)
datasets_wr.append(int(blk['wr']) / 1048576)
datasets_rd = check_points(datasets_rd)
datasets_wr = check_points(datasets_wr)
json_blk.append({'dev': blk['dev'], 'data': [datasets_rd, datasets_wr]})
datasets_blk[blk['dev']] = [datasets_rd, datasets_wr]
for net in net_usage:
if not cookies['net']:
datasets_rx = [0] * points
datasets_tx = [0] * points
else:
datasets['net'] = eval(cookies['net'])
datasets_rx = datasets['net'][net['dev']][0]
datasets_tx = datasets['net'][net['dev']][1]
datasets_rx.append(int(net['rx']) / 1048576)
datasets_tx.append(int(net['tx']) / 1048576)
datasets_rx = check_points(datasets_rx)
datasets_tx = check_points(datasets_tx)
json_net.append({'dev': net['dev'], 'data': [datasets_rx, datasets_tx]})
datasets_net[net['dev']] = [datasets_rx, datasets_tx]
data = json.dumps({'cpudata': datasets['cpu'], 'blkdata': json_blk,
'netdata': json_net, 'timeline': datasets['timer']})
response.cookies['cpu'] = datasets['cpu']
response.cookies['timer'] = datasets['timer']
response.cookies['blk'] = datasets_blk
response.cookies['net'] = datasets_net
except libvirtError:
data = json.dumps({'error': 'Error 500'})
response.write(data)
return response
@login_required
def guess_mac_address(request, vname):
dhcp_file = '/srv/webvirtcloud/dhcpd.conf'
data = { 'vname': vname, 'mac': '52:54:00:' }
if os.path.isfile(dhcp_file):
with open(dhcp_file, 'r') as f:
name_found = False
for line in f:
if "host %s." % vname in line:
name_found = True
if name_found and "hardware ethernet" in line:
data['mac'] = line.split(' ')[-1].strip().strip(';')
break
return HttpResponse(json.dumps(data));
@login_required
def check_instance(request, vname):
check_instance = Instance.objects.filter(name=vname)
data = { 'vname': vname, 'exists': False }
if check_instance:
data['exists'] = True
return HttpResponse(json.dumps(data));