RETIRED, Tricircle is to provide networking automation across Neutron.
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# Copyright 2015 Huawei Technologies Co., Ltd.
#
# 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.
import tricircle.common.context as t_context
from tricircle.common.singleton import Singleton
from tricircle.common import utils
from tricircle.db import client
from tricircle.db import models
from tricircle.dispatcher.host_manager import ComputeHostManager
class Node(object):
def __init__(self, name):
self.vcpus = 20
self.memory_mb = 1024 * 32 # 32 GB
self.memory_mb_used = self.memory_mb * 0.1
self.free_ram_mb = self.memory_mb - self.memory_mb_used
self.local_gb = 1024 * 10 # 10 TB
self.local_gb_used = self.local_gb * 0.3
self.free_disk_gb = self.local_gb - self.local_gb_used
self.vcpus_used = 0
self.hypervisor_type = "Cascade Site"
self.hypervisor_version = 1
self.current_workload = 1
self.hypervisor_hostname = name
self.running_vms = 0
self.cpu_info = ""
self.disk_available_least = 1
self.supported_hv_specs = []
self.metrics = None
self.pci_stats = None
self.extra_resources = None
self.stats = {}
self.numa_topology = None
def get_available_resource(self):
return {
"vcpus": self.vcpus,
"memory_mb": self.memory_mb,
"local_gb": self.local_gb,
"vcpus_used": self.vcpus_used,
"memory_mb_used": self.memory_mb_used,
"local_gb_used": self.local_gb_used,
"hypervisor_type": self.hypervisor_type,
"hypervisor_version": self.hypervisor_version,
"hypervisor_hostname": self.hypervisor_hostname,
"free_ram_mb": self.free_ram_mb,
"free_disk_gb": self.free_disk_gb,
"current_workload": self.current_workload,
"running_vms": self.running_vms,
"cpu_info": self.cpu_info,
"disk_available_least": self.disk_available_least,
"supported_hv_specs": self.supported_hv_specs,
"metrics": self.metrics,
"pci_stats": self.pci_stats,
"extra_resources": self.extra_resources,
"stats": self.stats,
"numa_topology": self.numa_topology,
}
class Site(object):
def __init__(self, name):
self.name = name
# We currently just hold one aggregate subnode representing the
# resources owned by all the site's nodes.
self._aggragate_node = Node(utils.get_node_name(name))
self._instance_launch_information = {}
def get_nodes(self):
return [self._aggragate_node]
def get_node(self, name):
return self._aggragate_node
def get_num_instances(self):
return 0
def prepare_for_instance(self, request_spec, filter_properties):
instance_uuid = request_spec[u'instance_properties']['uuid']
self._instance_launch_information[instance_uuid] = (
request_spec,
filter_properties
)
class _SiteManager(object):
def __init__(self):
self._sites = {}
self.compute_host_manager = ComputeHostManager(self)
sites = models.list_sites(t_context.get_db_context(), [])
for site in sites:
# skip top site
if not site['az_id']:
continue
self.create_site(t_context.get_admin_context(), site['site_name'])
def create_site(self, context, site_name):
"""creates a fake node as nova-compute and add it to az"""
# TODO(saggi): thread safety
if site_name in self._sites:
raise RuntimeError("Site already exists in site map")
# TODO(zhiyuan): use DHT to judge whether host this site or not
self._sites[site_name] = Site(site_name)
self.compute_host_manager.create_host_adapter(site_name)
ag_name = utils.get_ag_name(site_name)
top_client = client.Client()
aggregates = top_client.list_resources('aggregate', context)
for aggregate in aggregates:
if aggregate['name'] == ag_name:
if site_name in aggregate['hosts']:
return
else:
top_client.action_resources('aggregate', context,
'add_host', aggregate['id'],
site_name)
return
def get_site(self, site_name):
return self._sites[site_name]
get_instance = Singleton(_SiteManager).get_instance