mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-10 04:06:47 +00:00
8d2c9b1217
On a running VM a disk edit changes the definition for the next start, but the disk list and its edit form showed the running VM's disks. The form posts every field, so an edit wrote the running values back over earlier pending changes (cache, io, serial, ...), and a disk only in the next definition could not be edited. The list now shows the persistent disks. A volume is deleted only when both definitions use it at that device, since the list may now show another source than the running VM.
342 lines
10 KiB
Python
342 lines
10 KiB
Python
from computes.models import Compute
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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 VIR_DOMAIN_XML_SECURE, libvirtError
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from vrtManager.instance import 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 qos(self):
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return self.proxy.get_all_qos()
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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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@cached_property
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def snapshots(self) -> list[dict]:
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return sorted(self.proxy.get_snapshot(), reverse=True, key=lambda k: k["date"])
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@cached_property
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def external_snapshots(self):
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return sorted(self.proxy.get_external_snapshots(), reverse=True, key=lambda k: k["date"])
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@cached_property
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def inst_xml(self):
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return self.proxy._XMLDesc(VIR_DOMAIN_XML_SECURE)
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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")}
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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")}
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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)
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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=17, blank=True)
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console_pass = models.CharField(max_length=64, blank=True)
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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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