88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
|
|
# Copyright (c) 2012 VMware, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
"""
|
|
Management class for host-related functions (start, reboot, etc).
|
|
"""
|
|
|
|
from oslo_utils import units
|
|
|
|
from nova.compute import arch
|
|
from nova.compute import hv_type
|
|
from nova.compute import vm_mode
|
|
from nova import exception
|
|
from nova import utils
|
|
from nova.virt.vmwareapi import ds_util
|
|
from nova.virt.vmwareapi import vim_util
|
|
from nova.virt.vmwareapi import vm_util
|
|
|
|
|
|
def _get_ds_capacity_and_freespace(session, cluster=None,
|
|
datastore_regex=None):
|
|
try:
|
|
ds = ds_util.get_datastore(session, cluster,
|
|
datastore_regex)
|
|
return ds.capacity, ds.freespace
|
|
except exception.DatastoreNotFound:
|
|
return 0, 0
|
|
|
|
|
|
class VCState(object):
|
|
"""Manages information about the VC host this compute
|
|
node is running on.
|
|
"""
|
|
def __init__(self, session, host_name, cluster, datastore_regex):
|
|
super(VCState, self).__init__()
|
|
self._session = session
|
|
self._host_name = host_name
|
|
self._cluster = cluster
|
|
self._datastore_regex = datastore_regex
|
|
self._stats = {}
|
|
self.update_status()
|
|
|
|
def get_host_stats(self, refresh=False):
|
|
"""Return the current state of the host. If 'refresh' is
|
|
True, run the update first.
|
|
"""
|
|
if refresh or not self._stats:
|
|
self.update_status()
|
|
return self._stats
|
|
|
|
def update_status(self):
|
|
"""Update the current state of the cluster."""
|
|
capacity, freespace = _get_ds_capacity_and_freespace(self._session,
|
|
self._cluster, self._datastore_regex)
|
|
|
|
# Get cpu, memory stats from the cluster
|
|
stats = vm_util.get_stats_from_cluster(self._session, self._cluster)
|
|
about_info = self._session._call_method(vim_util, "get_about_info")
|
|
data = {}
|
|
data["vcpus"] = stats['vcpus']
|
|
data["disk_total"] = capacity / units.Gi
|
|
data["disk_available"] = freespace / units.Gi
|
|
data["disk_used"] = data["disk_total"] - data["disk_available"]
|
|
data["host_memory_total"] = stats['mem']['total']
|
|
data["host_memory_free"] = stats['mem']['free']
|
|
data["hypervisor_type"] = about_info.name
|
|
data["hypervisor_version"] = utils.convert_version_to_int(
|
|
str(about_info.version))
|
|
data["hypervisor_hostname"] = self._host_name
|
|
data["supported_instances"] = [
|
|
(arch.I686, hv_type.VMWARE, vm_mode.HVM),
|
|
(arch.X86_64, hv_type.VMWARE, vm_mode.HVM)]
|
|
|
|
self._stats = data
|
|
return data
|