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#
# -------------------------------------------------------------------------
# Copyright (c) 2019 AT&T Intellectual Property
#
# 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 six
from valet.engine.app_manager.group import FLAVOR_TYPES
class Server(object):
"""Container to keep requested server (e.g., VM)."""
def __init__(self, _id, _orch_id):
"""Define server info and parameters."""
# ID consists of stack_name + ":" + server_name,
# where stack_name = datacenter_id + ":" + tenant_id + ":" + vf_module_name
self.vid = _id
# ID in stack
self.orch_id = _orch_id
# one given in Heat stack
self.name = None
# Affinity group object
self.surgroup = None
self.diversity_groups = {}
self.quorum_diversity_groups = {}
self.exclusivity_groups = {}
self.availability_zone = None
self.flavor = None
self.image = None
self.vCPUs = 0
self.mem = 0 # MB
self.local_volume_size = 0 # GB
self.extra_specs_list = []
self.vCPU_weight = -1
self.mem_weight = -1
self.local_volume_weight = -1
# To return placement.
# If stack is nested, should point the index to distinguish
self.host_assignment_variable = None
self.host_assignment_inx = -1
# Placement result
self.host_group = None # e.g., rack
self.host = None
self.numa = None
# Request state is 'create', 'migrate', 'rebuild', 'delete'
# 'created', 'migrated', 'rebuilt'
self.state = "plan"
# To inform if the current placement violates rules and requirements
self.status = "valid"
self.sort_base = -1
def get_exclusivities(self, _level):
"""Return exclusivity group requested with a level (host or rack).
Note: each server must have a single exclusivity group of the level.
"""
exclusivities = {}
for exk, group in self.exclusivity_groups.iteritems():
if group.level == _level:
exclusivities[exk] = group
return exclusivities
def need_numa_alignment(self):
"""Check if this server requires NUMA alignment."""
if len(self.extra_specs_list) > 0:
for es in self.extra_specs_list:
for key, req in six.iteritems(es):
if key == "hw:numa_nodes" and int(req) == 1:
return True
return False
def get_flavor_types(self):
flavor_type_list = []
for extra_specs in self.extra_specs_list:
for k, v in extra_specs.iteritems():
k_elements = k.split(':')
if len(k_elements) > 1:
if k_elements[0] == "aggregate_instance_extra_specs":
if k_elements[1].lower() in FLAVOR_TYPES:
if v == "true":
flavor_type_list.append(k_elements[1])
return flavor_type_list
def get_json_info(self):
"""Format server info as JSON."""
if self.surgroup is None:
surgroup_id = "none"
else:
surgroup_id = self.surgroup.vid
diversity_groups = []
for divk in self.diversity_groups.keys():
diversity_groups.append(divk)
quorum_diversity_groups = []
for divk in self.quorum_diversity_groups.keys():
quorum_diversity_groups.append(divk)
exclusivity_groups = []
for exk in self.exclusivity_groups.keys():
exclusivity_groups.append(exk)
if self.availability_zone is None:
availability_zone = "none"
else:
availability_zone = self.availability_zone
if self.host_group is None:
host_group = "none"
else:
host_group = self.host_group
if self.numa is None:
numa = "none"
else:
numa = self.numa
return {'name': self.name,
'orch_id': self.orch_id,
'surgroup': surgroup_id,
'diversity_groups': diversity_groups,
'quorum_diversity_groups': quorum_diversity_groups,
'exclusivity_groups': exclusivity_groups,
'availability_zones': availability_zone,
'extra_specs_list': self.extra_specs_list,
'flavor': self.flavor,
'image': self.image,
'cpus': self.vCPUs,
'mem': self.mem,
'local_volume': self.local_volume_size,
'host_group': host_group,
'host': self.host,
'numa': numa,
'state': self.state,
'status': self.status}
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