827563608f
In current implementation is not easy to use ceilometer. Watcher must query metrics from the Telemetry v2 API to allow an easiest integration with OpenStack components (especially devstack). blueprint telemetry-integration Change-Id: Ide515472f1d160925d9f4aabf48c96dea4f6bc05
81 lines
3.0 KiB
Python
81 lines
3.0 KiB
Python
# -*- encoding: utf-8 -*-
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# Copyright (c) 2015 b<>com
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#
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# Authors: Jean-Emile DARTOIS <jean-emile.dartois@b-com.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from oslo_config import cfg
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from oslo_log import log
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from watcher.decision_engine.framework.model.hypervisor import Hypervisor
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from watcher.decision_engine.framework.model.model_root import ModelRoot
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from watcher.decision_engine.framework.model.resource import Resource
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from watcher.decision_engine.framework.model.resource import ResourceType
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from watcher.decision_engine.framework.model.vm import VM
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from watcher.metrics_engine.cluster_model_collector.api import \
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BaseClusterModelCollector
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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class NovaClusterModelCollector(BaseClusterModelCollector):
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def __init__(self, wrapper):
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self.wrapper = wrapper
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def get_latest_cluster_data_model(self):
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cluster = ModelRoot()
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mem = Resource(ResourceType.memory)
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num_cores = Resource(ResourceType.cpu_cores)
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disk = Resource(ResourceType.disk)
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cluster.create_resource(mem)
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cluster.create_resource(num_cores)
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cluster.create_resource(disk)
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flavor_cache = {}
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hypervisors = self.wrapper.get_hypervisors_list()
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for h in hypervisors:
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service = self.wrapper.nova.services.find(id=h.service['id'])
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# create hypervisor in cluster_model_collector
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hypervisor = Hypervisor()
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hypervisor.uuid = service.host
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# set capacity
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mem.set_capacity(hypervisor, h.memory_mb)
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disk.set_capacity(hypervisor, h.free_disk_gb)
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num_cores.set_capacity(hypervisor, h.vcpus)
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hypervisor.state = h.state
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hypervisor.status = h.status
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cluster.add_hypervisor(hypervisor)
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vms = self.wrapper.get_vms_by_hypervisor(str(service.host))
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for v in vms:
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# create VM in cluster_model_collector
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vm = VM()
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vm.uuid = v.id
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# nova/nova/compute/vm_states.py
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vm.state = getattr(v, 'OS-EXT-STS:vm_state')
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# set capacity
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self.wrapper.get_flavor_instance(v, flavor_cache)
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mem.set_capacity(vm, v.flavor['ram'])
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disk.set_capacity(vm, v.flavor['disk'])
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num_cores.set_capacity(vm, v.flavor['vcpus'])
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cluster.get_mapping().map(hypervisor, vm)
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cluster.add_vm(vm)
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return cluster
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