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webvirtcloud/instances/views.py
catborise f94b3cee7a chore: drop references to the local roadmap from code and tests
Comments, docstrings and live test names cited item IDs of a roadmap
that is not part of the repository. They now say what is meant, or
nothing where the sentence stands without them. Test assertions and
behavior are unchanged.
2026-10-04 11:09:25 +03:00

2310 lines
84 KiB
Python
Executable file

try:
import crypt_r as crypt
except ImportError:
import crypt
import functools
import json
import os
import re
import socket
import subprocess
import time
from bisect import insort
from accounts.models import UserInstance, UserSSHKey
from admin.decorators import superuser_only
from appsettings.models import AppSettings
from appsettings.settings import app_settings
from computes.models import Compute
from computes.utils import libvirt_compute_lock, libvirt_instance_lock, user_quota_lock
from django.conf import settings
from django.contrib import messages
from django.contrib.auth.decorators import permission_required
from django.contrib.auth.models import User
from django.core.exceptions import PermissionDenied
from django.http import Http404, HttpResponse, JsonResponse
from django.db.models import prefetch_related_objects
from django.shortcuts import get_object_or_404, redirect, render
from django.urls import reverse
from django.utils.http import url_has_allowed_host_and_scheme
from django.utils.translation import gettext_noop as _
from django.views.decorators.http import require_POST
from libvirt import (VIR_DOMAIN_UNDEFINE_KEEP_NVRAM,
VIR_DOMAIN_UNDEFINE_MANAGED_SAVE,
VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA,
VIR_DOMAIN_UNDEFINE_NVRAM,
VIR_DOMAIN_START_PAUSED,
libvirtError)
from logs.views import addlogmsg
from vrtManager import util
from vrtManager.create import wvmCreate
from vrtManager.instance import wvmInstances
from vrtManager.interface import wvmInterface
from vrtManager.storage import wvmStorage
from vrtManager.util import randomPasswd
from instances.models import Instance
from . import utils
from .forms import ConsoleForm, FlavorForm, NewVMForm
from .models import Flavor
def index(request):
instances = None
computes = list(Compute.objects.all().order_by("name"))
for compute in computes:
utils.refr(compute)
prefetch_related_objects(computes, "instance_set__userinstance_set")
if request.user.is_superuser or request.user.has_perm("instances.view_instances"):
instances = Instance.objects.all().prefetch_related("userinstance_set")
else:
instances = Instance.objects.filter(
userinstance__user=request.user
).prefetch_related("userinstance_set")
return render(
request, "allinstances.html", {"computes": computes, "instances": instances}
)
def instance(request, pk):
instance: Instance = get_instance(request.user, pk)
compute: Compute = instance.compute
computes = Compute.objects.all().order_by("name")
computes_count = computes.count()
users = User.objects.all().order_by("username")
publickeys = UserSSHKey.objects.filter(user_id=request.user.id)
keymaps = settings.QEMU_KEYMAPS
# The console form renders the VNC password, so only users who may manage
# console settings get the form (and the password) at all.
can_manage_console = utils.can_manage_console(request.user, instance)
console_form = None
if can_manage_console:
console_form = ConsoleForm(
initial={
"listen_on": instance.console_listener_address,
"password": instance.console_passwd,
"keymap": instance.console_keymap,
}
)
console_listener_addresses = settings.QEMU_CONSOLE_LISTENER_ADDRESSES
bottom_bar = app_settings.VIEW_INSTANCE_DETAIL_BOTTOM_BAR
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
try:
userinstance = UserInstance.objects.get(
instance__compute_id=compute.id,
instance__name=instance.name,
user__id=request.user.id,
)
except UserInstance.DoesNotExist:
userinstance = None
memory_range = [256, 512, 768, 1024, 2048, 3072, 4096, 6144, 8192, 16384]
if instance.memory not in memory_range:
insort(memory_range, instance.memory)
if instance.cur_memory not in memory_range:
insort(memory_range, instance.cur_memory)
clone_free_names = utils.get_clone_free_names()
user_quota_msg = utils.check_user_quota(request.user, 0, 0, 0, 0)
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_cache = app_settings.INSTANCE_VOLUME_DEFAULT_CACHE
default_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)
# clone_instance_auto_name = app_settings.CLONE_INSTANCE_AUTO_NAME
# try:
# instance = Instance.objects.get(compute=compute, name=vname)
# if instance.uuid != uuid:
# instance.uuid = uuid
# instance.save()
# msg = _(f"Fixing UUID {uuid}")
# addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
# except Instance.DoesNotExist:
# instance = Instance(compute=compute, name=vname, uuid=uuid)
# instance.save()
# msg = _("Instance does not exist: Creating new instance")
# addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
# userinstances = UserInstance.objects.filter(instance=instance).order_by('user__username')
userinstances = instance.userinstance_set.order_by("user__username")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
# Host resources
vcpu_host = len(instance.vcpu_range)
memory_host = instance.proxy.get_max_memory()
bus_host = instance.proxy.get_disk_bus_types(instance.arch, instance.machine)
networks_host = sorted(instance.proxy.get_networks())
interfaces_host = sorted(instance.proxy.get_ifaces())
nwfilters_host = instance.proxy.get_nwfilters()
storages_host = sorted(instance.proxy.get_storages(True))
net_models_host = instance.proxy.get_network_models()
if app_settings.VM_DRBD_STATUS == "True":
instance.drbd = drbd_status(request, pk)
instance.save()
return render(request, "instance.html", locals(),)
def status(request, pk):
instance = get_instance(request.user, pk)
return JsonResponse({"status": instance.proxy.get_status()})
def drbd_status(request, pk):
instance = get_instance(request.user, pk)
result = "None DRBD"
if instance.compute.type == 2:
conn = instance.compute.login + "@" + instance.compute.hostname
remoteDrbdStatus = subprocess.run(
["ssh", conn, "sudo", "/usr/sbin/drbdadm", "status", "&&", "exit"],
stdout=subprocess.PIPE,
text=True,
)
if remoteDrbdStatus.stdout:
try:
instanceFindDrbd = re.compile(
instance.name + "[_]*[A-Z]* role:(.+?)\n disk:(.+?)\n",
re.IGNORECASE,
)
instanceDrbd = instanceFindDrbd.findall(remoteDrbdStatus.stdout)
primaryCount = 0
secondaryCount = 0
statusDisk = "OK"
for disk in instanceDrbd:
if disk[0] == "Primary":
primaryCount = primaryCount + 1
elif disk[0] == "Secondary":
secondaryCount = secondaryCount + 1
if disk[1] != "UpToDate":
statusDisk = "NOK"
if primaryCount > 0 and secondaryCount > 0:
statusRole = "NOK"
else:
if primaryCount > secondaryCount:
statusRole = "Primary"
else:
statusRole = "Secondary"
result = statusRole + "/" + statusDisk
except:
print("Error to get drbd role and status")
return result
def stats(request, pk):
instance = get_instance(request.user, pk)
json_blk = []
json_net = []
# TODO: stats are inaccurate
cpu_usage = instance.proxy.cpu_usage()
mem_usage = instance.proxy.mem_usage()
blk_usage = instance.proxy.disk_usage()
net_usage = instance.proxy.net_usage()
current_time = time.strftime("%H:%M:%S")
for blk in blk_usage:
json_blk.append(
{
"dev": blk["dev"],
"data": [int(blk["rd"]) / 1048576, int(blk["wr"]) / 1048576],
}
)
for net in net_usage:
json_net.append(
{
"dev": net["dev"],
"data": [int(net["rx"]) / 1048576, int(net["tx"]) / 1048576],
}
)
return JsonResponse(
{
"cpudata": int(cpu_usage["cpu"]),
"memdata": mem_usage,
"blkdata": json_blk,
"netdata": json_net,
"timeline": current_time,
}
)
def osinfo(request, pk):
instance = get_instance(request.user, pk)
results = instance.proxy.osinfo()
return JsonResponse(results)
@superuser_only
def guess_mac_address(request, vname):
data = {"vname": vname}
mac = utils.get_dhcp_mac_address(vname)
if not mac:
mac = utils.get_random_mac_address()
data["mac"] = mac
return JsonResponse(data)
@superuser_only
def random_mac_address(request):
data = dict()
data["mac"] = utils.get_random_mac_address()
return JsonResponse(data)
@superuser_only
def guess_clone_name(request):
dhcp_file = "/srv/webvirtcloud/dhcpd.conf"
prefix = app_settings.CLONE_INSTANCE_DEFAULT_PREFIX
if os.path.isfile(dhcp_file):
instance_names = [
i.name for i in Instance.objects.filter(name__startswith=prefix)
]
with open(dhcp_file, "r") as f:
for line in f:
line = line.strip()
if f"host {prefix}" in line:
fqdn = line.split(" ")[1]
hostname = fqdn.split(".")[0]
if hostname.startswith(prefix) and hostname not in instance_names:
return JsonResponse({"name": hostname})
return JsonResponse({})
def sshkeys(request, pk):
"""
:param request:
:param vname:
:return:
"""
instance = get_instance(request.user, pk)
instance_keys = []
userinstances = UserInstance.objects.filter(instance=instance)
for ui in userinstances:
keys = UserSSHKey.objects.filter(user=ui.user)
for k in keys:
instance_keys.append(k.keypublic)
if request.GET.get("plain", ""):
response = "\n".join(instance_keys)
response += "\n"
return HttpResponse(response, content_type="text/plain; charset=utf-8")
return JsonResponse(instance_keys, safe=False)
def _same_origin_referer(request, default):
"""The Referer without its fragment if it is on this site, else default."""
referer = request.META.get("HTTP_REFERER")
if referer and url_has_allowed_host_and_scheme(
url=referer, allowed_hosts={request.get_host()}, require_https=request.is_secure()
):
return referer.split("#")[0]
return default
def get_safe_redirect(request, default=None):
referer = request.META.get("HTTP_REFERER")
if referer and url_has_allowed_host_and_scheme(
url=referer,
allowed_hosts={request.get_host()},
require_https=request.is_secure(),
):
return redirect(referer)
if default:
return redirect(default)
return redirect("instances:index")
def get_instance(user, pk, perm_type="view"):
"""
Check that instance is available for user, if not raise 404 or PermissionDenied.
perm_type:
- 'view': superuser, has_perm("instances.view_instances"), or UserInstance owner
- 'power': superuser or UserInstance owner
- 'change': superuser or (UserInstance owner and is_change)
- 'delete': superuser or (UserInstance owner and is_delete)
"""
valid_perms = {"view", "power", "change", "delete"}
if perm_type not in valid_perms:
raise PermissionDenied
instance = get_object_or_404(Instance, pk=pk)
user_instances = user.userinstance_set.filter(instance=instance)
has_owner_rel = user_instances.exists()
if not (
user.is_superuser
or user.has_perm("instances.view_instances")
or has_owner_rel
):
raise Http404()
if user.is_superuser or perm_type == "view":
return instance
user_inst = user_instances.first()
if perm_type == "power":
if not has_owner_rel:
raise PermissionDenied
elif perm_type == "change":
if not (user_inst and user_inst.is_change):
raise PermissionDenied
elif perm_type == "delete":
if not (user_inst and user_inst.is_delete):
raise PermissionDenied
else:
raise PermissionDenied
return instance
def _busy(request, pk):
if hasattr(request, "accepted_renderer"):
return JsonResponse({"detail": "Instance operation is busy. Please retry."}, status=409)
messages.error(request, _("Instance operation is busy. Please retry."))
return get_safe_redirect(request, default=reverse("instances:instance", args=[pk]))
def serialize_instance_mutation(func):
"""Serialize one VM, after checking visibility, without blocking sibling VMs."""
@functools.wraps(func)
def wrapper(request, pk, *args, **kwargs):
inst = get_instance(request.user, pk)
try:
with libvirt_instance_lock(inst):
return func(request, pk, *args, **kwargs)
except TimeoutError:
return _busy(request, pk)
return wrapper
def serialize_user_quota(func):
"""Outermost lock for quota-checked changes: concurrent requests of one
user (also on different computes) must not pass the check together."""
@functools.wraps(func)
def wrapper(request, pk, *args, **kwargs):
if request.user.is_superuser: # quotas do not apply
return func(request, pk, *args, **kwargs)
try:
with user_quota_lock(request.user):
return func(request, pk, *args, **kwargs)
except TimeoutError:
return _busy(request, pk)
return wrapper
def serialize_compute_mutation(func):
"""Hold the whole compute: disk deletions must not race another VM attaching that disk."""
@functools.wraps(func)
def wrapper(request, pk, *args, **kwargs):
inst = get_instance(request.user, pk)
if request.method in ("GET", "HEAD"): # e.g. the destroy confirmation page
return func(request, pk, *args, **kwargs)
try:
with libvirt_compute_lock(inst.compute):
return func(request, pk, *args, **kwargs)
except TimeoutError:
return _busy(request, pk)
return wrapper
DISK_FORMAT_RE = re.compile(r"^[a-z0-9]+$")
DISK_SERIAL_RE = re.compile(r"^[A-Za-z0-9_.+-]*$")
VOLUME_NAME_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9_.+-]*$")
def invalid_disk_options(
instance,
bus=None,
cache=None,
io=None,
discard=None,
zeroes=None,
format=None,
serial=None,
):
"""
Return the names of the given disk options whose values are not allowed.
These values end up in libvirt disk XML, so they must come from the
hypervisor's own lists (or match a strict pattern). None means "not given".
"""
proxy = instance.proxy
checks = {
"bus": (
bus,
lambda v: v in proxy.get_disk_bus_types(instance.arch, instance.machine),
),
"cache": (cache, lambda v: v in proxy.get_cache_modes()),
"io": (io, lambda v: v in proxy.get_io_modes()),
"discard": (discard, lambda v: v in proxy.get_discard_modes()),
"detect_zeroes": (zeroes, lambda v: v in proxy.get_detect_zeroes_modes()),
"format": (format, lambda v: bool(DISK_FORMAT_RE.fullmatch(v))),
"serial": (serial, lambda v: bool(DISK_SERIAL_RE.fullmatch(v))),
}
return [
name
for name, (value, is_valid) in checks.items()
if value is not None and not is_valid(value)
]
def reject_disk_options(request, invalid):
messages.error(
request,
_("Invalid disk options: %(options)s") % {"options": ", ".join(invalid)},
)
return get_safe_redirect(request)
@require_POST
@serialize_instance_mutation
def poweron(request, pk):
instance = get_instance(request.user, pk, perm_type="power")
if instance.is_template:
messages.warning(request, _("Templates cannot be started."))
else:
instance.proxy.start()
addlogmsg(
request.user.username, instance.compute.name, instance.name, _("Power On")
)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@require_POST
@serialize_instance_mutation
def powercycle(request, pk):
instance = get_instance(request.user, pk, perm_type="power")
instance.proxy.force_shutdown()
instance.proxy.start()
addlogmsg(
request.user.username, instance.compute.name, instance.name, _("Power Cycle")
)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@require_POST
@serialize_instance_mutation
def poweroff(request, pk):
instance = get_instance(request.user, pk, perm_type="power")
instance.proxy.shutdown()
addlogmsg(
request.user.username, instance.compute.name, instance.name, _("Power Off")
)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@require_POST
@superuser_only
@serialize_instance_mutation
def suspend(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.suspend()
addlogmsg(request.user.username, instance.compute.name, instance.name, _("Suspend"))
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@require_POST
@superuser_only
@serialize_instance_mutation
def resume(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.resume()
addlogmsg(request.user.username, instance.compute.name, instance.name, _("Resume"))
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@require_POST
@serialize_instance_mutation
def force_off(request, pk):
instance = get_instance(request.user, pk, perm_type="power")
instance.proxy.force_shutdown()
addlogmsg(
request.user.username, instance.compute.name, instance.name, _("Force Off")
)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
@serialize_compute_mutation
def destroy(request, pk):
if request.method in ["POST", "DELETE"]:
instance = get_instance(request.user, pk, perm_type="delete")
with libvirt_instance_lock(instance):
proxy = instance.proxy
# Paused and other active states must stop too, or the VM keeps
# running as a transient domain after the undefine.
if proxy.instance.isActive():
proxy.force_shutdown()
to_delete, shared = [], []
if request.POST.get("delete_disk", ""):
to_delete, shared = proxy.split_disk_paths_by_use()
# Undefine before deleting any disk: if it fails, nothing is lost.
# Snapshot metadata goes with the domain; internal snapshot data
# stays in the disk images that are kept.
flags = VIR_DOMAIN_UNDEFINE_MANAGED_SAVE | VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA
if request.POST.get("delete_nvram", ""):
flags |= VIR_DOMAIN_UNDEFINE_NVRAM
else:
flags |= VIR_DOMAIN_UNDEFINE_KEEP_NVRAM
proxy.delete(flags)
instance.delete()
for path in to_delete:
try:
proxy.get_volume_by_path(path).delete(0)
except libvirtError as err:
messages.error(request, _("Disk %(path)s was not deleted: %(err)s") % {"path": path, "err": err})
for path in shared:
messages.warning(request, _("Disk %(path)s is used by another VM and was kept") % {"path": path})
addlogmsg(
request.user.username, instance.compute.name, instance.name, _("Destroy")
)
return redirect(reverse("instances:index"))
instance = get_instance(request.user, pk, perm_type="delete")
try:
userinstance = instance.userinstance_set.get(user=request.user)
except Exception:
userinstance = UserInstance(
is_delete=request.user.is_superuser
)
return render(
request,
"instances/destroy_instance_form.html",
{
"instance": instance,
"userinstance": userinstance,
},
)
@require_POST
@superuser_only
def migrate(request, pk):
instance = get_instance(request.user, pk)
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)
offline = request.POST.get("offline_migrate", False)
autoconverge = request.POST.get("autoconverge", False)
compress = request.POST.get("compress", False)
postcopy = request.POST.get("postcopy", False)
current_host = instance.compute.hostname
target_host = Compute.objects.get(id=compute_id)
try:
utils.migrate_instance(
target_host,
instance,
request.user,
live,
unsafe,
xml_del,
offline,
autoconverge,
compress,
postcopy,
)
except libvirtError as err:
messages.error(request, err)
migration_method = "live" if live is True else "offline"
msg = _("Instance is migrated(%(method)s) to %(hostname)s") % {
"hostname": target_host.hostname,
"method": migration_method,
}
addlogmsg(request.user.username, current_host, instance.name, msg)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id])
)
GSTFSD_PORT = 16510
GSTFSD_TIMEOUT = 120 # gstfsd starts a guestfs appliance, which takes a while
def gstfsd_request(hostname, data):
"""Send one request to gstfsd and return its JSON reply, or an error reply."""
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(GSTFSD_TIMEOUT)
try:
s.connect((hostname, GSTFSD_PORT))
s.send(json.dumps(data).encode())
return json.loads(s.recv(1024).strip())
except (OSError, ValueError) as err:
return {"return": "error", "message": _("gstfsd error: %(err)s") % {"err": err}}
finally:
s.close()
@require_POST
@serialize_instance_mutation
def set_root_pass(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
if request.method == "POST":
passwd = request.POST.get("passwd", None)
if passwd:
passwd_hash = crypt.crypt(passwd, crypt.mksalt(crypt.METHOD_SHA512))
# gstfsd opens the domain by name: send the host's current one.
data = {"action": "password", "passwd": passwd_hash, "vname": instance.proxy.instance.name()}
if instance.proxy.get_status() == 5:
result = gstfsd_request(instance.compute.hostname, data)
if result["return"] == "success":
msg = _("Reset root password")
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
messages.success(request, msg)
else:
messages.error(request, result["message"])
else:
msg = _("Please shutdown down your instance and then try again")
messages.error(request, msg)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id]) + "#access"
)
@require_POST
@serialize_instance_mutation
def add_public_key(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
if request.method == "POST":
sshkeyid = request.POST.get("sshkeyid", "")
publickey = get_object_or_404(UserSSHKey, id=sshkeyid, user=request.user)
data = {
"action": "publickey",
"key": publickey.keypublic,
"vname": instance.proxy.instance.name(),
}
if instance.proxy.get_status() == 5:
result = gstfsd_request(instance.compute.hostname, data)
if result["return"] == "error":
msg = result["message"]
else:
msg = _("Installed new SSH public key %(keyname)s") % {
"keyname": publickey.keyname
}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
if result["return"] == "success":
messages.success(request, msg)
else:
messages.error(request, msg)
else:
msg = _("Please shutdown down your instance and then try again")
messages.error(request, msg)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id]) + "#access"
)
@require_POST
@serialize_user_quota
@serialize_instance_mutation
def resizevm_cpu(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
vcpu = instance.proxy.get_vcpu()
new_vcpu = request.POST.get("vcpu", "")
new_cur_vcpu = request.POST.get("cur_vcpu", "")
quota_msg = utils.check_user_quota(
request.user, 0, int(new_vcpu) - vcpu, 0, 0
)
if not request.user.is_superuser and quota_msg:
msg = _(
"User %(quota_msg)s quota reached, cannot resize CPU of '%(instance_name)s'!"
) % {
"quota_msg": quota_msg,
"instance_name": instance.name,
}
messages.error(request, msg)
else:
cur_vcpu = new_cur_vcpu
vcpu = new_vcpu
instance.proxy.resize_cpu(cur_vcpu, vcpu)
msg = _("CPU is resized: %(old)s to %(new)s") % {
"old": cur_vcpu,
"new": vcpu,
}
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
messages.success(request, msg)
return redirect(reverse("instances:instance", args=[instance.id]) + "#resize")
@require_POST
@serialize_user_quota
@serialize_instance_mutation
def resize_memory(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
memory = instance.proxy.get_memory()
cur_memory = instance.proxy.get_cur_memory()
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
quota_msg = utils.check_user_quota(
request.user, 0, 0, int(new_memory) - memory, 0
)
if not request.user.is_superuser and quota_msg:
msg = _(
"User %(quota_msg)s quota reached, cannot resize memory of '%(instance_name)s'!"
) % {
"quota_msg": quota_msg,
"instance_name": instance.name,
}
messages.error(request, msg)
else:
instance.proxy.resize_mem(new_cur_memory, new_memory)
msg = _(
"Memory is resized: current/max: %(old_cur)s/%(old_max)s to %(new_cur)s/%(new_max)s"
) % {
"old_cur": cur_memory,
"old_max": memory,
"new_cur": new_cur_memory,
"new_max": new_memory,
}
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
messages.success(request, msg)
return redirect(reverse("instances:instance", args=[instance.id]) + "#resize")
@require_POST
@serialize_user_quota
@serialize_instance_mutation
def resize_disk(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
disks = instance.proxy.get_disk_devices()
disks_new = list()
for disk in disks:
input_disk_size = (
int(request.POST.get("disk_size_" + disk["dev"], "0")) * 1073741824
)
if input_disk_size > disk["size"] + (64 << 20):
disk["size_new"] = input_disk_size
disks_new.append(disk)
if not disks_new:
messages.warning(request, _("No disks were selected or valid for resizing."))
return redirect(reverse("instances:instance", args=[instance.id]) + "#resize")
disk_sum = sum([disk["size"] >> 30 for disk in disks_new])
disk_new_sum = sum([disk["size_new"] >> 30 for disk in disks_new])
quota_msg = utils.check_user_quota(
request.user, 0, 0, 0, disk_new_sum - disk_sum
)
if not request.user.is_superuser and quota_msg:
msg = _(
"User %(quota_msg)s quota reached, cannot resize disks of '%(instance_name)s'!"
) % {
"quota_msg": quota_msg,
"instance_name": instance.name,
}
messages.error(request, msg)
else:
instance.proxy.resize_disk(disks_new)
devs_str = ", ".join([d["dev"] for d in disks_new])
msg = _("Disk is resized: %(dev)s") % {"dev": devs_str}
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
messages.success(request, msg)
return redirect(reverse("instances:instance", args=[instance.id]) + "#resize")
@require_POST
@superuser_only
@serialize_instance_mutation
def add_new_vol(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
media = instance.proxy.get_media_devices()
disks = instance.proxy.get_disk_devices()
storage = request.POST.get("storage", "")
name = request.POST.get("name", "")
format = request.POST.get("format", app_settings.INSTANCE_VOLUME_DEFAULT_FORMAT)
size = request.POST.get("size", 0)
meta_prealloc = True if request.POST.get("meta_prealloc", False) else False
bus = request.POST.get("bus", app_settings.INSTANCE_VOLUME_DEFAULT_BUS)
cache = request.POST.get("cache", app_settings.INSTANCE_VOLUME_DEFAULT_CACHE)
invalid = invalid_disk_options(instance, bus=bus, cache=cache, format=format)
if not VOLUME_NAME_RE.fullmatch(name):
invalid.append("name")
if invalid:
return reject_disk_options(request, invalid)
conn_create = wvmCreate(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
)
target_dev = utils.get_new_disk_dev(media, disks, bus)
source = conn_create.create_volume(
storage,
name,
size,
format,
meta_prealloc,
int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_UID),
int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_GID),
)
conn_pool = wvmStorage(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
storage,
)
pool_type = conn_pool.get_type()
disk_type = conn_pool.get_volume_type(os.path.basename(source))
if pool_type == "rbd":
source_info = conn_pool.get_rbd_source()
else: # add more disk types to handle different pool and disk types
source_info = None
instance.proxy.attach_disk(
target_dev,
source,
source_info=source_info,
pool_type=pool_type,
disk_type=disk_type,
target_bus=bus,
format_type=format,
cache_mode=cache,
)
msg = _("Attach new disk: %(name)s (%(format)s)") % {
"name": name,
"format": format,
}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def add_existing_vol(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
storage = request.POST.get("selected_storage", "")
name = request.POST.get("vols", "")
bus = request.POST.get("bus", app_settings.INSTANCE_VOLUME_DEFAULT_BUS)
cache = request.POST.get("cache", app_settings.INSTANCE_VOLUME_DEFAULT_CACHE)
invalid = invalid_disk_options(instance, bus=bus, cache=cache)
if invalid:
return reject_disk_options(request, invalid)
media = instance.proxy.get_media_devices()
disks = instance.proxy.get_disk_devices()
conn_create = wvmStorage(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
storage,
)
# Only volumes that really exist in the selected pool; this also rules
# out path traversal through the volume name.
if name not in conn_create.get_volumes():
return reject_disk_options(request, ["vols"])
format_type = conn_create.get_volume_format_type(name)
disk_type = conn_create.get_volume_type(name)
pool_type = conn_create.get_type()
if pool_type == "rbd":
source_info = conn_create.get_rbd_source()
path = conn_create.get_source_name()
else:
source_info = None
path = conn_create.get_target_path()
target_dev = utils.get_new_disk_dev(media, disks, bus)
source = f"{path}/{name}"
instance.proxy.attach_disk(
target_dev,
source,
source_info=source_info,
pool_type=pool_type,
disk_type=disk_type,
target_bus=bus,
format_type=format_type,
cache_mode=cache,
)
msg = _("Attach Existing disk: %(target_dev)s") % {"target_dev": target_dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def edit_volume(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
if "edit_volume" in request.POST:
target_dev = request.POST.get("dev", "")
new_path = request.POST.get("vol_path", "")
shareable = bool(request.POST.get("vol_shareable", False))
readonly = bool(request.POST.get("vol_readonly", False))
disks = instance.proxy.get_disk_devices(config=True)
current = next((disk for disk in disks if disk["dev"] == target_dev), {})
new_bus = request.POST.get("vol_bus", current.get("bus"))
serial = request.POST.get("vol_serial", "")
format = request.POST.get("vol_format", "")
cache = request.POST.get(
"vol_cache", app_settings.INSTANCE_VOLUME_DEFAULT_CACHE
)
io = request.POST.get("vol_io_mode", app_settings.INSTANCE_VOLUME_DEFAULT_IO)
discard = request.POST.get(
"vol_discard_mode", app_settings.INSTANCE_VOLUME_DEFAULT_DISCARD
)
zeroes = request.POST.get(
"vol_detect_zeroes", app_settings.INSTANCE_VOLUME_DEFAULT_DETECT_ZEROES
)
# The form shows "None" (or nothing) for a disk without driver type.
if format in ("", "None"):
format = current.get("format") or ""
invalid = invalid_disk_options(
instance,
bus=new_bus,
cache=cache,
io=io,
discard=discard,
zeroes=zeroes,
# "": the disk has no driver type and keeps having none.
format=format or None,
serial=serial,
)
if not current:
invalid.append("dev")
if invalid:
return reject_disk_options(request, invalid)
instance.proxy.edit_disk(
target_dev,
new_path,
readonly,
shareable,
new_bus,
serial,
format,
cache,
io,
discard,
zeroes,
)
if not instance.proxy.get_status() == 5:
messages.success(
request,
_(
"Volume changes are applied. "
+ "But it will be activated after shutdown"
),
)
else:
messages.success(request, _("Volume is changed successfully."))
msg = _("Edit disk: %(target_dev)s") % {"target_dev": target_dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_compute_mutation
def delete_vol(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
dev = request.POST.get("dev", "")
# Resolve the volume from the VM's own XML; never trust the posted
# storage/name, which could point at any volume on the compute.
disk = next((d for d in instance.disks if d["dev"] == dev), None)
if disk is None or not disk["storage"] or not disk["image"]:
messages.error(
request,
_("Disk %(dev)s is not a storage volume of this instance") % {"dev": dev},
)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
conn_delete = wvmStorage(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
disk["storage"],
)
if disk["path"] in instance.proxy.paths_used_by_other_domains():
messages.error(
request,
_("Volume %(vol)s is used by another VM; detach it instead") % {"vol": disk["image"]},
)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
msg = _("Delete disk: %(dev)s") % {"dev": dev}
instance.proxy.detach_disk(dev)
# Never delete a volume the guest may still be writing to.
if not instance.proxy.wait_disk_detached(dev):
messages.warning(
request,
_("The guest has not released disk %(dev)s yet; volume %(vol)s was kept. "
"Delete it from the storage pool once the VM is shut down.")
% {"dev": dev, "vol": disk["image"]},
)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
conn_delete.del_volume(disk["image"])
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def detach_vol(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
dev = request.POST.get("dev", "")
instance.proxy.detach_disk(dev)
msg = _("Detach disk: %(dev)s") % {"dev": dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def add_cdrom(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
bus = request.POST.get("bus", "ide" if instance.machine == "pc" else "sata")
invalid = invalid_disk_options(instance, bus=bus)
if invalid:
return reject_disk_options(request, invalid)
target = utils.get_new_disk_dev(instance.media, instance.disks, bus)
instance.proxy.attach_disk(
target,
"",
disk_device="cdrom",
cache_mode="none",
target_bus=bus,
readonly=True,
)
msg = _("Add CD-ROM: %(target)s") % {"target": target}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def detach_cdrom(request, pk, dev):
instance = get_instance(request.user, pk, perm_type="change")
# dev = request.POST.get('detach_cdrom', '')
instance.proxy.detach_disk(dev)
msg = _("Detach CD-ROM: %(dev)s") % {"dev": dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def unmount_iso(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
dev = request.POST.get("umount_iso", "")
try:
instance.proxy.umount_iso(dev)
except libvirtError as err:
messages.error(request, err)
else:
msg = _("Unmount media: %(dev)s") % {"dev": dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(_same_origin_referer(request, reverse("instances:instance", args=[pk])) + "#disks")
@require_POST
@superuser_only
@serialize_instance_mutation
def mount_iso(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
image = request.POST.get("media", "")
dev = request.POST.get("mount_iso", "")
try:
instance.proxy.mount_iso(dev, image)
except libvirtError as err:
messages.error(request, err)
else:
msg = _("Mount media: %(dev)s") % {"dev": dev}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(_same_origin_referer(request, reverse("instances:instance", args=[pk])) + "#disks")
@require_POST
@serialize_instance_mutation
def snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
name = request.POST.get("name", "")
desc = request.POST.get("description", "")
try:
instance.proxy.create_snapshot(name, desc)
except libvirtError as err:
# e.g. UEFI firmware whose NVRAM format does not allow internal snapshots
messages.error(request, _("Snapshot was not created: %(err)s") % {"err": err})
else:
msg = _("Create snapshot: %(snap)s") % {"snap": name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
@require_POST
@serialize_instance_mutation
def delete_snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
snap_name = request.POST.get("name", "")
instance.proxy.snapshot_delete(snap_name)
msg = _("Delete snapshot: %(snap)s") % {"snap": snap_name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
@require_POST
@serialize_instance_mutation
def revert_snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
snap_name = request.POST.get("name", "")
try:
instance.proxy.snapshot_revert(snap_name)
except libvirtError as err:
messages.error(request, _("Snapshot was not reverted: %(err)s") % {"err": err})
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
msg = _("Successful revert snapshot: ")
msg += snap_name
messages.success(request, msg)
msg = _("Revert snapshot: %(snap)s") % {"snap": snap_name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
@require_POST
@serialize_instance_mutation
def create_external_snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
name = request.POST.get("name", "")
desc = request.POST.get("description", "")
instance.proxy.create_external_snapshot("s1." + name, instance, desc=desc)
msg = _("Create external snapshot: %(snap)s") % {"snap": name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
def get_external_snapshots(request, pk):
instance = get_instance(request.user, pk)
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
external_snapshots = instance.proxy.get_external_snapshots()
return external_snapshots
@require_POST
@serialize_instance_mutation
def revert_external_snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
instance_state = True if instance.proxy.get_status() != 5 else False
name = request.POST.get("name", "")
date = request.POST.get("date", "")
desc = request.POST.get("desc", "")
instance.proxy.force_shutdown() if instance_state else None
instance.proxy.revert_external_snapshot(name, date, desc)
instance.proxy.start() if instance_state else None
msg = _("Revert external snapshot: %(snap)s") % {"snap": name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
@require_POST
@serialize_instance_mutation
def delete_external_snapshot(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
instance_state = True if instance.proxy.get_status() == 5 else False
allow_admin_or_not_template = (
request.user.is_superuser or request.user.is_staff or not instance.is_template
)
if allow_admin_or_not_template and request.user.has_perm(
"instances.snapshot_instances"
):
name = request.POST.get("name", "")
instance.proxy.start(VIR_DOMAIN_START_PAUSED) if instance_state else None
try:
instance.proxy.delete_external_snapshot(name)
msg = _("Delete external snapshot: %(snap)s") % {"snap": name}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
finally:
instance.proxy.force_shutdown() if instance_state else None
return redirect(request.META.get("HTTP_REFERER") + "#managesnapshot")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_vcpu(request, pk):
instance = get_instance(request.user, pk)
id = request.POST.get("id", "")
enabled = request.POST.get("set_vcpu", "")
if enabled == "True":
instance.proxy.set_vcpu(id, 1)
else:
instance.proxy.set_vcpu(id, 0)
msg = _("VCPU %(id)s is enabled=%(enabled)s") % {"id": id, "enabled": enabled}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#resize")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_vcpu_hotplug(request, pk):
instance = get_instance(request.user, pk)
status = True if request.POST.get("vcpu_hotplug", "False") == "True" else False
msg = _("VCPU Hot-plug is enabled=%(status)s") % {"status": status}
instance.proxy.set_vcpu_hotplug(status)
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#resize")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_autostart(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.set_autostart(1)
msg = _("Set autostart")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#boot_opt")
@require_POST
@superuser_only
@serialize_instance_mutation
def unset_autostart(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.set_autostart(0)
msg = _("Unset autostart")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#boot_opt")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_bootmenu(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.set_bootmenu(1)
msg = _("Enable boot menu")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#boot_opt")
@require_POST
@superuser_only
@serialize_instance_mutation
def unset_bootmenu(request, pk):
instance = get_instance(request.user, pk)
instance.proxy.set_bootmenu(0)
msg = _("Disable boot menu")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#boot_opt")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_bootorder(request, pk):
instance = get_instance(request.user, pk)
bootorder = request.POST.get("bootorder", "")
if bootorder:
order_list = {}
for idx, val in enumerate(bootorder.split(",")):
dev_type, dev = val.split(":", 1)
order_list[idx] = {"type": dev_type, "dev": dev}
instance.proxy.set_bootorder(order_list)
msg = _("Set boot order")
if not instance.proxy.get_status() == 5:
messages.success(
request,
_(
"Boot menu changes applied. "
+ "But it will be activated after shutdown"
),
)
else:
messages.success(request, _("Boot order changed successfully."))
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#boot_opt")
@require_POST
@superuser_only
@serialize_instance_mutation
def change_xml(request, pk):
instance = get_instance(request.user, pk)
new_xml = request.POST.get("inst_xml", "")
if new_xml:
instance.proxy._defineXML(new_xml)
msg = _("Change instance XML")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#xmledit")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_guest_agent(request, pk):
instance = get_instance(request.user, pk)
status = request.POST.get("guest_agent")
if status == "True":
instance.proxy.add_guest_agent()
if status == "False":
instance.proxy.remove_guest_agent()
msg = _("Set Guest Agent: %(status)s") % {"status": status}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#options")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_video_model(request, pk):
instance = get_instance(request.user, pk)
video_model = request.POST.get("video_model", "vga")
instance.proxy.set_video_model(video_model)
msg = _("Set Video Model: %(model)s") % {"model": video_model}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#options")
@require_POST
@superuser_only
@serialize_instance_mutation
def change_network(request, pk):
instance = get_instance(request.user, pk)
back = _same_origin_referer(request, reverse("instances:instance", args=[pk])) + "#network"
# Each NIC has its own form; its fields end with that NIC's index.
nums = [key[len("net-old-mac-"):] for key in request.POST if key.startswith("net-old-mac-")]
if len(nums) != 1:
messages.error(request, _("Select one network interface to change"))
return redirect(back)
num = nums[0]
old_mac = request.POST[f"net-old-mac-{num}"]
mac = request.POST.get(f"net-mac-{num}", "").strip() or old_mac
try:
util.validate_macaddr(mac)
except ValueError as err:
messages.error(request, err)
return redirect(back)
(source, source_type) = utils.get_network_tuple(request.POST.get(f"net-source-{num}", ""))
if source_type == "iface":
iface = wvmInterface(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
source,
)
source_type = iface.get_type()
try:
instance.proxy.change_network(
old_mac,
mac,
source,
source_type,
request.POST.get(f"net-model-{num}"),
request.POST.get(f"net-nwfilter-{num}", ""),
)
except libvirtError as err:
messages.error(request, err)
return redirect(back)
msg = _("Change network: %(mac)s") % {"mac": old_mac}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
msg = _("Network Device Config is changed. Please shutdown instance to activate.")
if instance.proxy.get_status() != 5:
messages.success(request, msg)
return redirect(back)
@require_POST
@superuser_only
@serialize_instance_mutation
def add_network(request, pk):
instance = get_instance(request.user, pk)
mac = request.POST.get("add-net-mac")
nwfilter = request.POST.get("add-net-nwfilter")
(source, source_type) = utils.get_network_tuple(request.POST.get("add-net-network"))
model = request.POST.get("add-net-model")
if source_type == "iface":
iface = wvmInterface(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
source,
)
source_type = iface.get_type()
instance.proxy.add_network(mac, source, source_type, model=model, nwfilter=nwfilter)
msg = _("Add network: %(mac)s") % {"mac": mac}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#network")
@require_POST
@superuser_only
@serialize_instance_mutation
def delete_network(request, pk):
instance = get_instance(request.user, pk)
mac_address = request.POST.get("delete_network", "")
instance.proxy.delete_network(mac_address)
msg = _("Delete Network: %(mac)s") % {"mac": mac_address}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#network")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_link_state(request, pk):
instance = get_instance(request.user, pk)
mac_address = request.POST.get("mac", "")
state = request.POST.get("set_link_state")
state = "down" if state == "up" else "up"
instance.proxy.set_link_state(mac_address, state)
msg = _("Set Link State: %(state)s") % {"state": state}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#network")
@require_POST
@superuser_only
@serialize_instance_mutation
def set_qos(request, pk):
instance = get_instance(request.user, pk)
qos_dir = request.POST.get("qos_direction", "")
average = request.POST.get("qos_average") or 0
peak = request.POST.get("qos_peak") or 0
burst = request.POST.get("qos_burst") or 0
keys = request.POST.keys()
mac_key = [key for key in keys if "mac" in key]
if mac_key:
mac = request.POST.get(mac_key[0])
instance.proxy.set_qos(mac, qos_dir, average, peak, burst)
if instance.proxy.get_status() == 5:
messages.success(
request, _("%(qos_dir)s QoS is set") % {"qos_dir": qos_dir.capitalize()}
)
else:
messages.success(
request,
_(
"%(qos_dir)s QoS is set. Network XML is changed. \
Stop and start network to activate new config."
)
% {"qos_dir": qos_dir.capitalize()},
)
return redirect(request.META.get("HTTP_REFERER") + "#network")
@require_POST
@superuser_only
@serialize_instance_mutation
def unset_qos(request, pk):
instance = get_instance(request.user, pk)
qos_dir = request.POST.get("qos_direction", "")
mac = request.POST.get("net-mac")
instance.proxy.unset_qos(mac, qos_dir)
if instance.proxy.get_status() == 5:
messages.success(
request, _("%(qos_dir)s QoS is deleted") % {"qos_dir": qos_dir.capitalize()}
)
else:
messages.success(
request,
_(
"%(qos_dir)s QoS is deleted. Network XML is changed. \
Stop and start network to activate new config."
)
% {"qos_dir": qos_dir.capitalize()},
)
return redirect(request.META.get("HTTP_REFERER") + "#network")
@require_POST
@superuser_only
def add_owner(request, pk):
instance = get_instance(request.user, pk)
user_id = request.POST.get("user_id")
check_inst = 0
if app_settings.ALLOW_INSTANCE_MULTIPLE_OWNER == "False":
check_inst = UserInstance.objects.filter(instance=instance).count()
if check_inst > 0:
messages.error(
request, _("Only one owner is allowed and the one already added")
)
else:
add_user_inst = UserInstance(instance=instance, user_id=user_id)
add_user_inst.save()
user = User.objects.get(id=user_id)
msg = _("Add owner: %(user)s") % {"user": user}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#users")
@require_POST
@superuser_only
def del_owner(request, pk):
instance = get_instance(request.user, pk)
userinstance_id = int(request.POST.get("userinstance", ""))
userinstance = UserInstance.objects.get(pk=userinstance_id)
userinstance.delete()
msg = _("Delete owner: %(userinstance_id)s ") % {"userinstance_id": userinstance_id}
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return redirect(request.META.get("HTTP_REFERER") + "#users")
MAC_ADDRESS_RE = re.compile(r"^([0-9A-F]{2})(:?[0-9A-F]{2}){5}$", re.IGNORECASE)
CLONE_POST_KEY_RE = re.compile(r"^(clone-net-mac-\d+|disk-[a-z0-9]+|meta-[a-z0-9]+)$")
@require_POST
@permission_required("instances.clone_instances", raise_exception=True)
@serialize_user_quota
def clone(request, pk):
# Cloning copies the source disks, so it needs change permission on the
# source VM. Templates are meant to be deployed from, so viewing is enough.
instance = get_instance(request.user, pk)
if not instance.is_template:
instance = get_instance(request.user, pk, perm_type="change")
clone_data = dict()
clone_data["name"] = request.POST.get("name", "").strip()
clone_data["clone-title"] = request.POST.get("clone-title", "").strip()
clone_data["clone-description"] = request.POST.get("clone-description", "").strip()
disk_sum = sum(int(disk.get("size") or 0) >> 30 for disk in instance.disks)
quota_msg = utils.check_user_quota(
request.user, 1, instance.vcpu, instance.memory, disk_sum
)
clone_data["disk_owner_uid"] = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_UID)
clone_data["disk_owner_gid"] = int(app_settings.INSTANCE_VOLUME_DEFAULT_OWNER_GID)
# Only superusers may choose disk names and MAC addresses; the form only
# shows those fields to them.
if request.user.is_superuser:
for key, value in request.POST.items():
if CLONE_POST_KEY_RE.fullmatch(key):
clone_data[key] = value.strip()
if app_settings.CLONE_INSTANCE_AUTO_NAME == "True" and not clone_data["name"]:
auto_vname = utils.get_clone_free_names()[0]
clone_data["name"] = auto_vname
clone_data["clone-net-mac-0"] = utils.get_dhcp_mac_address(auto_vname)
for disk in instance.disks:
disk_dev = f"disk-{disk['dev']}"
disk_name = utils.get_clone_disk_name(disk, instance.name, auto_vname)
clone_data[disk_dev] = disk_name
if not request.user.is_superuser:
for disk in instance.config_disks:
clone_data[f"disk-{disk['dev']}"] = utils.get_clone_disk_name(
disk, instance.name, clone_data["name"]
)
for num in range(max(1, len(instance.config_networks))):
key = f"clone-net-mac-{num}"
if not clone_data.get(key):
clone_data[key] = (
utils.get_dhcp_mac_address(clone_data["name"]) if num == 0 else ""
) or utils.get_random_mac_address()
check_instance = Instance.objects.filter(name=clone_data["name"])
invalid_macs = [
value
for key, value in clone_data.items()
if key.startswith("clone-net-mac-") and not MAC_ADDRESS_RE.fullmatch(value)
]
invalid_disks = [
value
for key, value in clone_data.items()
# None: a disk without a volume, which clone_instance does not copy.
if key.startswith("disk-")
and value is not None
and not VOLUME_NAME_RE.fullmatch(value)
]
if not request.user.is_superuser and quota_msg:
msg = _(
"User '%(quota_msg)s' quota reached, cannot create '%(clone_name)s'!"
) % {
"quota_msg": quota_msg,
"clone_name": clone_data["name"],
}
messages.error(request, msg)
elif check_instance:
msg = _("Instance '%(clone_name)s' already exists!") % {
"clone_name": clone_data["name"]
}
messages.error(request, msg)
elif not re.match(r"^[a-zA-Z0-9-]+$", clone_data["name"]):
msg = _("Instance name '%(clone_name)s' contains invalid characters!") % {
"clone_name": clone_data["name"]
}
messages.error(request, msg)
elif "clone-net-mac-0" not in clone_data or invalid_macs:
msg = _("Instance MAC '%(clone_mac)s' invalid format!") % {
"clone_mac": ", ".join(invalid_macs)
}
messages.error(request, msg)
elif invalid_disks:
msg = _("Disk name '%(disk_name)s' contains invalid characters!") % {
"disk_name": ", ".join(str(v) for v in invalid_disks)
}
messages.error(request, msg)
else:
try:
# The whole compute: the destination name and disk names must not be
# taken by a concurrent clone of another VM while volumes are copied.
with libvirt_compute_lock(instance.compute):
new_uuid = instance.proxy.clone_instance(clone_data)
new_instance = Instance.objects.get_or_create(
compute=instance.compute,
uuid=new_uuid,
defaults={"name": clone_data["name"]},
)[0]
if new_instance.name != clone_data["name"]:
new_instance.name = clone_data["name"]
new_instance.save(update_fields=["name"])
UserInstance.objects.get_or_create(
instance_id=new_instance.id,
user_id=request.user.id,
defaults={"is_delete": True, "is_change": True, "is_vnc": True},
)
msg = _("Create a clone of '%(instance_name)s'") % {
"instance_name": instance.name
}
messages.success(request, msg)
addlogmsg(
request.user.username, instance.compute.name, new_instance.name, msg
)
if app_settings.CLONE_INSTANCE_AUTO_MIGRATE == "True":
new_compute = Compute.objects.order_by("?").first()
utils.migrate_instance(
new_compute, new_instance, request.user, xml_del=True, offline=True
)
return redirect(reverse("instances:instance", args=[new_instance.id]))
except Exception as e:
messages.error(request, e)
return get_safe_redirect(request, default=reverse("instances:instance", args=[pk]))
@require_POST
@serialize_instance_mutation
def update_console(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
if utils.can_manage_console(request.user, instance):
form = ConsoleForm(request.POST or None)
if form.is_valid():
if (
"generate_password" in form.changed_data
or "clear_password" in form.changed_data
or "password" in form.changed_data
):
if form.cleaned_data["generate_password"]:
password = randomPasswd()
elif form.cleaned_data["clear_password"]:
password = ""
else:
password = form.cleaned_data["password"]
if not instance.proxy.set_console_passwd(password):
msg = _(
"Error setting console password. "
+ "You should check that your instance have an graphic device."
)
messages.error(request, msg)
else:
msg = _("Set VNC password")
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
if "keymap" in form.changed_data or "clear_keymap" in form.changed_data:
if form.cleaned_data["clear_keymap"]:
instance.proxy.set_console_keymap("")
else:
instance.proxy.set_console_keymap(form.cleaned_data["keymap"])
msg = _("Set VNC keymap")
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
if "listen_on" in form.changed_data:
instance.proxy.set_console_listener_addr(form.cleaned_data["listen_on"])
msg = _("Set VNC listen address")
addlogmsg(
request.user.username, instance.compute.name, instance.name, msg
)
else:
messages.error(request, _("Console settings were not saved: %(errors)s") % {"errors": form.errors.as_text()})
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id]) + "#vncsettings"
)
@require_POST
@serialize_instance_mutation
def change_options(request, pk):
instance = get_instance(request.user, pk, perm_type="change")
try:
userinstance = instance.userinstance_set.get(user=request.user)
except Exception:
userinstance = UserInstance(is_change=False)
if request.user.is_superuser or userinstance.is_change:
# Only superusers and staff may (un)mark templates. The
# checkbox is disabled for everyone else, and a disabled checkbox is
# not submitted, so for them the flag must be left alone.
if request.user.is_superuser or request.user.is_staff:
instance.is_template = bool(request.POST.get("is_template", False))
instance.save(update_fields=["is_template"])
options = {}
for post in request.POST:
if post in ["title", "description"]:
options[post] = request.POST.get(post, "")
instance.proxy.set_options(options)
msg = _("Edit options")
addlogmsg(request.user.username, instance.compute.name, instance.name, msg)
return get_safe_redirect(
request, default=reverse("instances:instance", args=[instance.id]) + "#options"
)
def getvvfile(request, pk):
instance = get_instance(request.user, pk)
# The .vv file contains the VNC password: same rule as the console.
if not utils.can_open_console(request.user, instance):
raise PermissionDenied
conn = wvmInstances(
instance.compute.hostname,
instance.compute.login,
instance.compute.password,
instance.compute.type,
)
# The host's current name for this UUID; the stored name may be stale.
name = instance.proxy.instance.name()
msg = _("Send console.vv file")
addlogmsg(request.user.username, instance.compute.name, 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")
if conn.graphics_listen(name) == "0.0.0.0":
response.writelines("host=" + conn.host + "\n")
else:
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
@superuser_only
def create_instance_select_type(request, compute_id):
"""
:param request:
:param compute_id:
:return:
"""
conn = None
storages = list()
networks = list()
hypervisors = list()
meta_prealloc = False
compute = get_object_or_404(Compute, pk=compute_id)
conn = wvmCreate(compute.hostname, compute.login, compute.password, compute.type)
instances = conn.get_instances()
all_hypervisors = conn.get_hypervisors_machines()
# Supported hypervisors by webvirtcloud: i686, x86_64(for now)
supported_arch = [
"x86_64",
"i686",
"aarch64",
"armv7l",
"ppc64",
"ppc64le",
"s390x",
]
hypervisors = [hpv for hpv in all_hypervisors.keys() if hpv in supported_arch]
default_machine = app_settings.INSTANCE_MACHINE_DEFAULT_TYPE
default_arch = app_settings.INSTANCE_ARCH_DEFAULT_TYPE
if request.method == "POST":
if "create_xml" in request.POST:
xml = request.POST.get("dom_xml", "")
try:
name = util.get_xml_path(xml, "/domain/name")
except util.etree.Error:
name = None
if name in instances:
error_msg = _("A virtual machine with this name already exists")
messages.error(request, error_msg)
else:
with libvirt_compute_lock(compute):
conn._defineXML(xml)
utils.refr(compute)
instance = compute.instance_set.get(name=name)
return redirect(reverse("instances:instance", args=[instance.id]))
return render(request, "create_instance_w1.html", locals())
@superuser_only
def create_instance(request, compute_id, arch, machine):
"""
:param request:
:param compute_id:
:param arch:
:param machine:
:return:
"""
conn = None
storages = list()
networks = list()
hypervisors = list()
firmwares = list()
meta_prealloc = False
compute = get_object_or_404(Compute, pk=compute_id)
flavors = Flavor.objects.filter().order_by("id")
appsettings = AppSettings.objects.all()
try:
conn = wvmCreate(
compute.hostname,
compute.login,
compute.password,
compute.type
)
default_firmware = app_settings.INSTANCE_FIRMWARE_DEFAULT_TYPE
default_cpu_mode = app_settings.INSTANCE_CPU_DEFAULT_MODE
instances = conn.get_instances()
videos = conn.get_video_models(arch, machine)
default_video = app_settings.INSTANCE_VIDEO_DEFAULT_TYPE
cache_modes = sorted(conn.get_cache_modes().items())
default_cache = app_settings.INSTANCE_VOLUME_DEFAULT_CACHE
default_io = app_settings.INSTANCE_VOLUME_DEFAULT_IO
default_zeroes = app_settings.INSTANCE_VOLUME_DEFAULT_DETECT_ZEROES
default_discard = app_settings.INSTANCE_VOLUME_DEFAULT_DISCARD
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)
default_scsi_disk_model = app_settings.INSTANCE_VOLUME_DEFAULT_SCSI_CONTROLLER
listener_addr = settings.QEMU_CONSOLE_LISTENER_ADDRESSES
mac_auto = util.randomMAC()
disk_devices = conn.get_disk_device_types(arch, machine)
disk_buses = conn.get_disk_bus_types(arch, machine)
default_bus = app_settings.INSTANCE_VOLUME_DEFAULT_BUS
networks = sorted(conn.get_networks())
nwfilters = conn.get_nwfilters()
net_models_host = conn.get_network_models()
default_nic_type = app_settings.INSTANCE_NIC_DEFAULT_TYPE
storages = sorted(conn.get_storages(only_actives=True))
default_cdrom = app_settings.INSTANCE_CDROM_ADD
input_device_buses = ["default", "virtio", "usb"]
default_input_device_bus = app_settings.INSTANCE_INPUT_DEFAULT_DEVICE
dom_caps = conn.get_dom_capabilities(arch, machine)
caps = conn.get_capabilities(arch)
virtio_support = conn.is_supports_virtio(arch, machine)
hv_supports_uefi = conn.supports_uefi_xml(dom_caps["loader_enums"])
# Add BIOS
label = conn.label_for_firmware_path(arch, None)
if label:
firmwares.append(label)
# Add UEFI
loader_path = conn.find_uefi_path_for_arch(arch, dom_caps["loaders"])
label = conn.label_for_firmware_path(arch, loader_path)
if label:
firmwares.append(label)
firmwares = list(set(firmwares))
flavor_form = FlavorForm()
if conn:
if not storages:
raise util.OperationError(_("You haven't defined any storage pools"))
if not networks:
raise util.OperationError(_("You haven't defined any network pools"))
if request.method == "POST":
if "create" in request.POST:
form = NewVMForm(request.POST)
if form.is_valid():
data = form.cleaned_data
meta_prealloc = bool(data["meta_prealloc"])
# Everything is checked before any storage is allocated.
if data["name"] in instances:
raise util.OperationError(_("A virtual machine with this name already exists"))
if Instance.objects.filter(name__exact=data["name"]):
raise util.OperationError(
_("There is an instance with same name. Remove it and try again!")
)
if data["hdd_size"] and not data["mac"]:
raise util.OperationError(_("No Virtual Machine MAC has been entered"))
if not (data["hdd_size"] or data["template"] or data["images"]):
raise util.OperationError(_("First you need to create or select an image"))
if (
not data["hdd_size"]
and data["template"]
and conn.get_volume_path(data["name"] + ".img", data["storage"])
):
raise util.OperationError(
_("Image has already exist. Please check volumes or change instance name")
)
if data["cache_mode"] not in conn.get_cache_modes():
raise util.OperationError(_("Invalid cache mode"))
firmware = dict()
if "UEFI" in data["firmware"]:
if ":" not in data["firmware"]:
raise util.OperationError(_("Invalid firmware"))
firmware["loader"] = data["firmware"].split(":")[1].strip()
firmware["secure"] = "no"
firmware["readonly"] = "yes"
firmware["type"] = "pflash"
if "secboot" in firmware["loader"] and machine != "q35":
messages.warning(
request,
"Changing machine type from '%s' to 'q35' "
"which is required for UEFI secure boot." % machine,
)
machine = "q35"
firmware["secure"] = "yes"
if data["net_model"] == "default":
data["net_model"] = "virtio"
def volume(path, device="disk", bus=default_bus):
return {
"path": path,
"type": conn.get_volume_format_type(path),
"device": device,
"bus": bus,
"scsi_model": default_scsi_disk_model if bus == "scsi" else None,
"cache_mode": data["cache_mode"],
"discard_mode": default_discard,
"detect_zeroes_mode": default_zeroes,
"io_mode": default_io,
}
created = [] # volumes this request allocated
defined = False
volume_list = []
uuid = util.randomUUID()
try:
if data["hdd_size"]:
path = conn.create_volume(
data["storage"],
data["name"],
data["hdd_size"],
default_disk_format,
meta_prealloc,
default_disk_owner_uid,
default_disk_owner_gid,
)
created.append(path)
volume_list.append(volume(path))
elif data["template"]:
path = conn.clone_from_template(
data["name"],
conn.get_volume_path(data["template"]),
data["storage"],
meta_prealloc,
default_disk_owner_uid,
default_disk_owner_gid,
)
created.append(path)
volume_list.append(volume(path))
else:
for idx, vol in enumerate(data["images"].split(",")):
volume_list.append(volume(
conn.get_volume_path(vol),
request.POST.get("device" + str(idx), ""),
request.POST.get("bus" + str(idx), ""),
))
with libvirt_compute_lock(compute):
conn.create_instance(
name=data["name"],
memory=data["memory"],
vcpu=data["vcpu"],
vcpu_mode=data["vcpu_mode"],
uuid=uuid,
arch=arch,
machine=machine,
firmware=firmware,
volumes=volume_list,
networks=data["networks"],
virtio=data["virtio"],
listener_addr=data["listener_addr"],
nwfilter=data["nwfilter"],
net_model=data["net_model"],
video=data["video"],
console_pass=data["console_pass"],
mac=data["mac"],
qemu_ga=data["qemu_ga"],
add_cdrom=data["add_cdrom"],
add_input=data["add_input"],
)
defined = True # from here on the VM uses the volumes
create_instance = Instance.objects.get_or_create(
compute_id=compute_id, uuid=uuid, defaults={"name": data["name"]}
)[0]
if create_instance.name != data["name"]:
create_instance.name = data["name"]
create_instance.save(update_fields=["name"])
except Exception as err:
leftovers = []
for path in [] if defined else created:
try:
conn.delete_volume(path)
except libvirtError:
leftovers.append(path)
if leftovers:
messages.error(
request,
_("Remove these volumes by hand: %(paths)s") % {"paths": ", ".join(leftovers)},
)
if not isinstance(err, libvirtError):
raise # unexpected: the volumes are gone, the error stays visible
messages.error(request, err)
else:
msg = _("Instance is created")
messages.success(request, msg)
addlogmsg(
request.user.username,
create_instance.compute.name,
create_instance.name,
msg,
)
return redirect(reverse("instances:instance", args=[create_instance.id]))
conn.close()
except libvirtError as lib_err:
messages.error(request, lib_err)
return render(request, "create_instance_w2.html", locals())
@superuser_only
def flavor_create(request):
form = FlavorForm(request.POST or None)
if form.is_valid():
form.save()
messages.success(request, _("Flavor Created"))
return get_safe_redirect(request, default=reverse("instances:index"))
return render(
request,
"common/form.html",
{"form": form, "title": _("Create Flavor")},
)
@superuser_only
def flavor_update(request, pk):
flavor = get_object_or_404(Flavor, pk=pk)
form = FlavorForm(request.POST or None, instance=flavor)
if form.is_valid():
form.save()
messages.success(request, _("Flavor Updated"))
return get_safe_redirect(request, default=reverse("instances:index"))
return render(
request,
"common/form.html",
{"form": form, "title": _("Update Flavor")},
)
@superuser_only
def flavor_delete(request, pk):
flavor = get_object_or_404(Flavor, pk=pk)
if request.method == "POST":
flavor.delete()
messages.success(request, _("Flavor Deleted"))
return get_safe_redirect(request, default=reverse("instances:index"))
return render(
request,
"common/confirm_delete.html",
{"object": flavor},
)