mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 11:16:47 +00:00
ec679d4d7a
The XML editor of a running or paused VM only showed its XML. It now shows the persistent definition, the one the VM starts with next (with secrets, like the other edit forms), and Change saves it through the same review dialog; the running VM keeps its live configuration until it restarts. The tab and the saved message say so. The check against a definition changed since the editor was opened covers this case too.
421 lines
13 KiB
Python
421 lines
13 KiB
Python
from computes.models import Compute
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from django.core.validators import MinValueValidator
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from django.db import models
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from django.utils.functional import cached_property
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from django.utils.translation import gettext_lazy as _
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from libvirt import (
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VIR_DOMAIN_SNAPSHOT_LIST_EXTERNAL,
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VIR_DOMAIN_SNAPSHOT_LIST_INTERNAL,
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libvirtError,
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)
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from operations import claims
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from operations.models import Claim
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from vrtManager.instance import PERSISTENT_XML, wvmInstance
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from webvirtcloud.settings import QEMU_CONSOLE_LISTENER_ADDRESSES
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class Flavor(models.Model):
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label = models.CharField(_("label"), max_length=12, unique=True)
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memory = models.IntegerField(_("memory"))
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vcpu = models.IntegerField(_("vcpu"))
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disk = models.IntegerField(_("disk"))
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def __str__(self):
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return self.label
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class InstanceManager(models.Manager):
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def get_queryset(self):
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return super().get_queryset().select_related("compute")
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class Instance(models.Model):
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compute = models.ForeignKey(Compute, on_delete=models.CASCADE)
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name = models.CharField(_("name"), max_length=120, db_index=True)
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uuid = models.CharField(_("uuid"), max_length=36, db_index=True)
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is_template = models.BooleanField(_("is template"), default=False)
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created = models.DateTimeField(_("created"), auto_now_add=True)
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drbd = models.CharField(_("drbd"), max_length=24, default="None")
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objects = InstanceManager()
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=["compute", "uuid"], name="unique_compute_uuid")
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]
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def __str__(self):
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return f"{self.compute}/{self.name}"
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@cached_property
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def proxy(self):
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return wvmInstance(
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self.compute.hostname,
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self.compute.login,
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self.compute.password,
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self.compute.type,
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self.name,
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uuid=self.uuid,
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)
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@cached_property
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def media(self) -> list[dict]:
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return self.proxy.get_media_devices()
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@cached_property
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def media_iso(self) -> list[str]:
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return sorted(self.proxy.get_iso_media())
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@cached_property
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def disks(self) -> list[dict]:
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return self.proxy.get_disk_devices()
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@cached_property
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def info(self) -> list | None:
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"""virDomainGetInfo, read once: state, max memory KiB, memory KiB, vCPUs, CPU time.
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None if the VM cannot be read (host down, VM gone): lists show it as unknown."""
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try:
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return self.proxy.instance.info()
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except libvirtError:
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return None
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@cached_property
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def status(self) -> int:
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return self.proxy.get_status()
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@cached_property
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def autostart(self) -> int:
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return self.proxy.get_autostart()
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@cached_property
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def bootmenu(self) -> bool:
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return self.proxy.get_bootmenu()
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@cached_property
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def boot_order(self) -> dict:
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return self.proxy.get_bootorder()
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@cached_property
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def arch(self) -> str:
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return self.proxy.get_arch()
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@cached_property
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def machine(self) -> str:
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return self.proxy.get_machine_type()
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@cached_property
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def firmware(self) -> dict:
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return self.proxy.get_loader()
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@cached_property
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def nvram(self) -> str | None:
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return self.proxy.get_nvram()
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@cached_property
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def vcpu(self) -> int:
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return self.proxy.get_vcpu()
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@cached_property
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def vcpu_range(self):
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return self.proxy.get_max_cpus()
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@cached_property
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def cur_vcpu(self):
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return self.proxy.get_cur_vcpu()
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@cached_property
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def vcpus(self):
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return self.proxy.get_vcpus()
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@cached_property
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def get_uuid(self):
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return self.proxy.get_uuid()
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@cached_property
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def memory(self) -> int:
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return self.proxy.get_memory()
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@cached_property
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def cur_memory(self):
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return self.proxy.get_cur_memory()
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@cached_property
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def title(self) -> str:
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return self.proxy.get_title()
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@cached_property
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def description(self) -> str:
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return self.proxy.get_description()
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@cached_property
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def networks(self) -> list[dict]:
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return self.proxy.get_net_devices()
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@cached_property
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def config_networks(self) -> list[dict]:
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"""NICs of the persistent definition, which the edit and clone forms
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change; target is the running VM's device name, if any."""
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live_targets = {net["mac"]: net.get("target", "") for net in self.networks}
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networks = self.proxy.get_net_devices(config=True)
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for net in networks:
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net["target"] = live_targets.get(net["mac"], "")
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return networks
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@cached_property
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def config_disks(self) -> list[dict]:
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"""Disks of the persistent definition, which the disk list, its edit
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form and a clone use: on a running VM a pending change shows, and an
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edit does not post the live value back over it."""
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return self.proxy.get_disk_devices(config=True)
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@cached_property
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def config_qos(self):
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"""QoS of the persistent definition, which the QoS form changes."""
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return self.proxy.get_all_qos(config=True)
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@cached_property
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def config_vcpu(self) -> int:
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"""vCPUs of the persistent definition, which the CPU form changes."""
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return self.proxy.get_vcpu(config=True)
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@cached_property
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def config_cur_vcpu(self) -> int:
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return self.proxy.get_cur_vcpu(config=True)
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@cached_property
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def config_title(self) -> str:
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"""Title and description of the persistent definition, which the
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options form changes."""
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return self.proxy.get_title(config=True)
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@cached_property
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def config_description(self) -> str:
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return self.proxy.get_description(config=True)
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@cached_property
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def config_media(self) -> list[dict]:
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"""CD-ROMs, boot menu and boot order of the persistent definition,
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which the boot order editor changes."""
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return self.proxy.get_media_devices(config=True)
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@cached_property
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def config_bootmenu(self) -> bool:
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return self.proxy.get_bootmenu(config=True)
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@cached_property
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def config_boot_order(self) -> dict:
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return self.proxy.get_bootorder(config=True)
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@cached_property
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def config_video_model(self) -> str | None:
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"""Video model and console settings of the persistent definition,
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which their forms change."""
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return self.proxy.get_video_model(config=True)
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@cached_property
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def config_console_listener_address(self) -> str:
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return self.proxy.get_console_listener_addr(config=True)
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@cached_property
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def config_console_passwd(self):
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return self.proxy.get_console_passwd(config=True)
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@cached_property
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def config_console_keymap(self) -> str:
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return self.proxy.get_console_keymap(config=True)
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@cached_property
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def telnet_port(self):
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return self.proxy.get_telnet_port()
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@cached_property
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def console_type(self) -> str | None:
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return self.proxy.get_console_type()
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@cached_property
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def console_port(self) -> str | None:
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return self.proxy.get_console_port()
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@cached_property
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def console_keymap(self) -> str:
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return self.proxy.get_console_keymap()
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@cached_property
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def console_listener_address(self) -> str:
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return self.proxy.get_console_listener_addr()
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@cached_property
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def guest_agent(self):
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return False if self.proxy.get_guest_agent() is None else True
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@cached_property
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def guest_agent_ready(self) -> bool:
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return self.proxy.is_agent_ready()
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@cached_property
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def video_model(self) -> str | None:
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return self.proxy.get_video_model()
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@cached_property
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def video_models(self):
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return self.proxy.get_video_models(self.arch, self.machine)
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def _snapshots(self, flag):
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return sorted(self.proxy.get_snapshot(flag), reverse=True, key=lambda k: k["date"])
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@cached_property
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def snapshots(self) -> list[dict]:
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return sorted(self.internal_snapshots + self.external_snapshots, reverse=True, key=lambda k: k["date"])
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@cached_property
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def internal_snapshots(self) -> list[dict]:
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return self._snapshots(VIR_DOMAIN_SNAPSHOT_LIST_INTERNAL)
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@cached_property
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def external_snapshots(self) -> list[dict]:
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return self._snapshots(VIR_DOMAIN_SNAPSHOT_LIST_EXTERNAL)
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@cached_property
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def snapshot_jobs(self) -> list[dict]:
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# only for the page; create, revert and delete query the jobs again and refuse if that fails
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try:
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return self.proxy.get_snapshot_jobs()
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except libvirtError:
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return []
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@cached_property
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def held_by_job(self) -> bool:
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# a queued job has no libvirt block job yet; a job's claim still holds the VM
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return Claim.objects.filter(resource=claims.instance_key(self.uuid), operation__isnull=False).exists()
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@cached_property
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def inst_xml(self):
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# the definition for the next start, which is the current one while the VM is off
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return self.proxy._XMLDesc(PERSISTENT_XML)
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@cached_property
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def has_managed_save_image(self):
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return self.proxy.get_managed_save_image()
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@cached_property
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def console_passwd(self):
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return self.proxy.get_console_passwd()
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@cached_property
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def cache_modes(self):
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return sorted(self.proxy.get_cache_modes().items())
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@cached_property
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def io_modes(self):
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return sorted(self.proxy.get_io_modes().items())
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@cached_property
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def discard_modes(self):
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return sorted(self.proxy.get_discard_modes().items())
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@cached_property
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def detect_zeroes_modes(self):
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return sorted(self.proxy.get_detect_zeroes_modes().items())
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@cached_property
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def formats(self):
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return self.proxy.get_image_formats()
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class MigrateInstance(models.Model):
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instance = models.ForeignKey(
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Instance, related_name="source_host", on_delete=models.DO_NOTHING
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)
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target_compute = models.ForeignKey(
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Compute, related_name="target_host", on_delete=models.DO_NOTHING
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)
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live = models.BooleanField(_("Live"))
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offline = models.BooleanField(_("Offline"))
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autoconverge = models.BooleanField(_("Auto Converge"), default=True)
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compress = models.BooleanField(_("Compress"), default=False)
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unsafe = models.BooleanField(_("Unsafe"), default=False)
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class Meta:
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managed = False
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class CreateInstance(models.Model):
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compute = models.ForeignKey(
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Compute, related_name="host", on_delete=models.DO_NOTHING
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)
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name = models.CharField(
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max_length=64,
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error_messages={"required": _("No Virtual Machine name has been entered")},
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)
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firmware = models.CharField(max_length=64)
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vcpu = models.IntegerField(
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error_messages={"required": _("No VCPU has been entered")}, validators=[MinValueValidator(1)]
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)
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vcpu_mode = models.CharField(max_length=20, blank=True)
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disk = models.IntegerField(blank=True)
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memory = models.IntegerField(
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error_messages={"required": _("No RAM size has been entered")}, validators=[MinValueValidator(1)]
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)
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networks = models.CharField(
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max_length=256,
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error_messages={"required": _("No Network pool has been choosen")},
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)
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nwfilter = models.CharField(max_length=256, blank=True)
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net_model = models.CharField(max_length=256, blank=True)
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storage = models.CharField(max_length=256, blank=True)
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template = models.CharField(max_length=256, blank=True)
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images = models.CharField(max_length=256, blank=True)
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cache_mode = models.CharField(
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max_length=16, error_messages={"required": _("Please select HDD cache mode")}
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)
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hdd_size = models.IntegerField(blank=True, validators=[MinValueValidator(1)])
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meta_prealloc = models.BooleanField(default=False, blank=True)
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virtio = models.BooleanField(default=True)
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qemu_ga = models.BooleanField(default=False)
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mac = models.CharField(max_length=255, blank=True) # one per NIC, comma separated
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add_cdrom = models.CharField(max_length=16)
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add_input = models.CharField(max_length=16)
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video = models.CharField(
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max_length=16, error_messages={"required": _("Please select a video driver")}
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)
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listener_addr = models.CharField(
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max_length=20, choices=QEMU_CONSOLE_LISTENER_ADDRESSES
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)
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class Meta:
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managed = False
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class InstanceTombstone(models.Model):
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"""Ownership of a VM that disappeared from its compute.
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Kept for INSTANCE_OWNERSHIP_RETENTION_DAYS so that the owners come back
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when the same UUID shows up again, on this or another compute.
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"""
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uuid = models.CharField(max_length=36, db_index=True)
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name = models.CharField(max_length=120)
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is_template = models.BooleanField(default=False)
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owners = models.JSONField(default=list) # [{"user": id, "is_change": .., "is_delete": .., "is_vnc": ..}]
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removed = models.DateTimeField(auto_now_add=True)
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def __str__(self):
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return "%s (%s)" % (self.name, self.uuid)
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class PermissionSet(models.Model):
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"""
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Dummy model for holding set of permissions we need to be automatically added by Django
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"""
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class Meta:
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default_permissions = ()
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permissions = [
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("clone_instances", "Can clone instances"),
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("passwordless_console", _("Can access console without password")),
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("view_instances", "Can view instances"),
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("snapshot_instances", "Can snapshot instances"),
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]
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managed = False
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