202 lines
8.2 KiB
Python
202 lines
8.2 KiB
Python
# Copyright 2015 IBM Corp.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from ceilometer.compute.virt import inspector as virt_inspector
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from ceilometer.i18n import _
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from oslo_config import cfg
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from oslo_log import log
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from oslo_utils import timeutils
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from oslo_utils import units
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from ceilometer_zvm.compute.virt.zvm import utils as zvmutils
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zvm_ops = [
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cfg.StrOpt('zvm_xcat_server',
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default=None,
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help='Host name or IP address of xCAT management_node'),
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cfg.StrOpt('zvm_xcat_username',
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default=None,
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help='xCAT username'),
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cfg.StrOpt('zvm_xcat_password',
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default=None,
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secret=True,
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help='Password of the xCAT user'),
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cfg.IntOpt('zvm_xcat_connection_timeout',
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default=600,
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help="The number of seconds wait for xCAT MN response"),
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cfg.StrOpt('xcat_zhcp_nodename',
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default='zhcp',
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help='xCat zHCP nodename in xCAT '),
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cfg.StrOpt('zvm_host',
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default=None,
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help='z/VM host that managed by xCAT MN.'),
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cfg.StrOpt('zvm_xcat_master',
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default='xcat',
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help='The xCAT MM node name'),
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cfg.IntOpt('cache_update_interval',
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default=600,
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help="Cached data update interval"),
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cfg.StrOpt('zvm_xcat_ca_file',
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default=None,
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help="CA file for https connection to xcat"),
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]
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CONF = cfg.CONF
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CONF.register_opts(zvm_ops, group='zvm')
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LOG = log.getLogger(__name__)
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class ZVMInspector(virt_inspector.Inspector):
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def __init__(self):
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self.cache = zvmutils.CacheData()
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self.cache_expiration = timeutils.utcnow_ts()
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self.instances = {}
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self.zhcp_info = {
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'nodename': CONF.zvm.xcat_zhcp_nodename,
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'hostname': zvmutils.get_node_hostname(
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CONF.zvm.xcat_zhcp_nodename),
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'userid': zvmutils.get_userid(CONF.zvm.xcat_zhcp_nodename)
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}
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def _update_inst_cpu_mem_stat(self, instances):
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inst_pis = zvmutils.image_performance_query(
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self.zhcp_info['nodename'], instances.values())
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for inst_name, userid in instances.items():
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if userid not in inst_pis.keys():
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# Not performance data returned for this virtual machine
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continue
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with zvmutils.expect_invalid_xcat_resp_data():
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guest_cpus = int(inst_pis[userid]['guest_cpus'])
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used_cpu_time = inst_pis[userid]['used_cpu_time']
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used_cpu_time = int(used_cpu_time.partition(' ')[0]) * units.k
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used_memory = inst_pis[userid]['used_memory']
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used_memory = int(used_memory.partition(' ')[0]) / units.Ki
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inst_stat = {'nodename': inst_name,
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'userid': userid,
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'guest_cpus': guest_cpus,
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'used_cpu_time': used_cpu_time,
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'used_memory': used_memory}
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self.cache.set('cpumem', inst_stat)
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def _update_inst_nic_stat(self, instances):
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vsw_dict = zvmutils.virutal_network_vswitch_query_iuo_stats(
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self.zhcp_info['nodename'])
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with zvmutils.expect_invalid_xcat_resp_data():
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for vsw in vsw_dict['vswitches']:
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for nic in vsw['nics']:
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for inst_name, userid in instances.items():
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if nic['userid'].upper() == userid.upper():
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nic_entry = {
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'vswitch_name': vsw['vswitch_name'],
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'nic_vdev': nic['vdev'],
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'nic_fr_rx': int(nic['nic_fr_rx']),
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'nic_fr_tx': int(nic['nic_fr_tx']),
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'nic_fr_rx_dsc': int(nic['nic_fr_rx_dsc']),
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'nic_fr_tx_dsc': int(nic['nic_fr_tx_dsc']),
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'nic_fr_rx_err': int(nic['nic_fr_rx_err']),
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'nic_fr_tx_err': int(nic['nic_fr_tx_err']),
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'nic_rx': int(nic['nic_rx']),
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'nic_tx': int(nic['nic_tx'])}
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inst_stat = self.cache.get('vnics', inst_name)
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if inst_stat is None:
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inst_stat = {
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'nodename': inst_name,
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'userid': userid,
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'nics': [nic_entry]
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}
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else:
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inst_stat['nics'].append(nic_entry)
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self.cache.set('vnics', inst_stat)
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def _update_cache(self, meter, instances={}):
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if instances == {}:
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self.cache.clear()
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self.cache_expiration = (timeutils.utcnow_ts() +
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CONF.zvm.cache_update_interval)
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instances = self.instances = zvmutils.list_instances(
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self.zhcp_info)
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if meter == 'cpumem':
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self._update_inst_cpu_mem_stat(instances)
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if meter == 'vnics':
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self._update_inst_nic_stat(instances)
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def _check_expiration_and_update_cache(self, meter):
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now = timeutils.utcnow_ts()
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if now >= self.cache_expiration:
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self._update_cache(meter)
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def _get_inst_stat(self, meter, instance):
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inst_name = zvmutils.get_inst_name(instance)
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# zvm inspector can not get instance info in shutdown stat
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if zvmutils.get_inst_power_state(instance) == 0x04:
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msg = _("Can not get vm info in shutdown state "
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"for %s") % inst_name
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raise virt_inspector.InstanceShutOffException(msg)
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self._check_expiration_and_update_cache(meter)
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inst_stat = self.cache.get(meter, inst_name)
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if inst_stat is None:
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userid = (self.instances.get(inst_name) or
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zvmutils.get_userid(inst_name))
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self._update_cache(meter, {inst_name: userid})
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inst_stat = self.cache.get(meter, inst_name)
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if inst_stat is None:
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msg = _("Can not get vm info for %s") % inst_name
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raise virt_inspector.InstanceNotFoundException(msg)
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else:
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return inst_stat
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def inspect_cpus(self, instance):
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inst_stat = self._get_inst_stat('cpumem', instance)
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return virt_inspector.CPUStats(number=inst_stat['guest_cpus'],
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time=inst_stat['used_cpu_time'])
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def inspect_memory_usage(self, instance, duration=None):
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inst_stat = self._get_inst_stat('cpumem', instance)
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return virt_inspector.MemoryUsageStats(usage=inst_stat['used_memory'])
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def inspect_vnics(self, instance):
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inst_stat = self._get_inst_stat('vnics', instance)
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for nic in inst_stat['nics']:
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nic_id = '_'.join((nic['vswitch_name'], inst_stat['userid'],
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nic['nic_vdev']))
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interface = virt_inspector.Interface(
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name=nic_id,
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mac=None,
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fref=None,
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parameters=None)
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stats = virt_inspector.InterfaceStats(
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rx_bytes=nic['nic_rx'],
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rx_packets=nic['nic_fr_rx'],
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tx_bytes=nic['nic_tx'],
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tx_packets=nic['nic_fr_tx'],
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rx_drop=nic['nic_fr_rx_dsc'],
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tx_drop=nic['nic_fr_tx_dsc'],
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rx_errors=nic['nic_fr_rx_err'],
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tx_errors=nic['nic_fr_tx_err'])
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yield (interface, stats)
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