mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 19:26:48 +00:00
a57290cdf2
The CPU bar showed the average since the host booted, read for every compute on every load of the VM list. The dialog now reads each compute's graph endpoint (load over one second) when it opens, two computes at a time so the reads hold at most two workers, and ignores answers of an earlier opening. A host that cannot be read shows a dash. The since-boot reading had no other caller and is removed.
90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
from ipaddress import ip_address
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from django.db.models import CharField, IntegerField, Model
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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 virConnect
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from computes.validators import validate_hostname, validate_login, validate_migration_address
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from vrtManager.connection import connection_manager
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from vrtManager.hostdetails import wvmHostDetails
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class Compute(Model):
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name = CharField(_("name"), max_length=64, unique=True)
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hostname = CharField(_("hostname"), max_length=64, validators=[validate_hostname])
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login = CharField(_("login"), max_length=20, blank=True, validators=[validate_login])
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password = CharField(_("password"), max_length=14, blank=True, null=True)
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details = CharField(_("details"), max_length=64, null=True, blank=True)
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type = IntegerField()
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migration_address = CharField(
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_("migration address"),
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max_length=64,
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blank=True,
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default="",
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validators=[validate_migration_address],
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help_text=_(
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"IP address or host name the other hosts send migrating VMs to; "
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"empty: the host's own host name, which they must be able to resolve"
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),
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)
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@property
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def migration_uri(self):
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"""The native migration URI for VMs migrated to this host, or None for
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libvirt's default."""
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if not self.migration_address:
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return None
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try:
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if ip_address(self.migration_address).version == 6:
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return f"tcp://[{self.migration_address}]"
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except ValueError:
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pass
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return f"tcp://{self.migration_address}"
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@cached_property
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def status(self):
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"""True if WebVirtCloud can connect to the host (within the connect
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timeout; a host that failed recently is not tried again at once)."""
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return isinstance(self.connection, virConnect)
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@cached_property
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def connection_error(self):
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"""Why the host cannot be reached, or None."""
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return None if self.status else str(self.connection)
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@cached_property
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def connection(self):
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try:
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return connection_manager.get_connection(
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self.hostname,
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self.login,
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self.password,
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self.type,
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)
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except Exception as e:
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return e
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@cached_property
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def proxy(self):
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return wvmHostDetails(
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self.hostname,
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self.login,
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self.password,
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self.type,
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)
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@cached_property
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def cpu_count(self):
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return self.proxy.get_node_info()[3]
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@cached_property
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def ram_size(self):
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return self.proxy.get_node_info()[2]
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@cached_property
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def ram_usage(self):
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return self.proxy.get_memory_usage()["percent"]
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def __str__(self):
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return self.name
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