ceilometer.hardware.discovery

Source code for ceilometer.hardware.discovery

# -*- encoding: utf-8 -*-
#
# 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.

from oslo_config import cfg
from oslo_log import log
from oslo_utils import timeutils

from ceilometer import nova_client
from ceilometer.polling import plugin_base

LOG = log.getLogger(__name__)

OPTS = [
    cfg.StrOpt('url_scheme',
               default='snmp://',
               help='URL scheme to use for hardware nodes.'),
    cfg.StrOpt('readonly_user_name',
               default='ro_snmp_user',
               help='SNMPd user name of all nodes running in the cloud.'),
    cfg.StrOpt('readonly_user_password',
               default='password',
               help='SNMPd v3 authentication password of all the nodes '
                    'running in the cloud.',
               secret=True),
    cfg.StrOpt('readonly_user_auth_proto',
               choices=['md5', 'sha'],
               help='SNMPd v3 authentication algorithm of all the nodes '
                    'running in the cloud'),
    cfg.StrOpt('readonly_user_priv_proto',
               choices=['des', 'aes128', '3des', 'aes192', 'aes256'],
               help='SNMPd v3 encryption algorithm of all the nodes '
                    'running in the cloud'),
    cfg.StrOpt('readonly_user_priv_password',
               help='SNMPd v3 encryption password of all the nodes '
                    'running in the cloud.',
               secret=True),
    cfg.StrOpt('tripleo_network_name',
               default='ctlplane',
               help='Name of the control plane Tripleo network')
]


[docs]class NodesDiscoveryTripleO(plugin_base.DiscoveryBase): def __init__(self, conf): super(NodesDiscoveryTripleO, self).__init__(conf) self.nova_cli = nova_client.Client(conf) self.last_run = None self.instances = {} def _make_resource_url(self, ip): hwconf = self.conf.hardware url = hwconf.url_scheme username = hwconf.readonly_user_name password = hwconf.readonly_user_password if username: url += username if password: url += ':' + password if username or password: url += '@' url += ip opts = ['auth_proto', 'priv_proto', 'priv_password'] query = "&".join(opt + "=" + hwconf['readonly_user_%s' % opt] for opt in opts if hwconf['readonly_user_%s' % opt]) if query: url += '?' + query return url
[docs] def discover(self, manager, param=None): """Discover resources to monitor. instance_get_all will return all instances if last_run is None, and will return only the instances changed since the last_run time. """ try: instances = self.nova_cli.instance_get_all(self.last_run) except Exception: # NOTE(zqfan): instance_get_all is wrapped and will log exception # when there is any error. It is no need to raise it again and # print one more time. return [] for instance in instances: if getattr(instance, 'OS-EXT-STS:vm_state', None) in ['deleted', 'error']: self.instances.pop(instance.id, None) else: self.instances[instance.id] = instance self.last_run = timeutils.utcnow(True).isoformat() resources = [] for instance in self.instances.values(): addresses = instance.addresses.get( self.conf.hardware.tripleo_network_name) if addresses is None: # NOTE(sileht): This is not a tripleo undercloud instance, this # is a cheap detection if ironic node deployed by tripleo, but # nova don't expose anything more useful and we must not log a # ERROR when the instance is not a tripleo undercloud one. continue try: ip_address = addresses[0].get('addr') final_address = self._make_resource_url(ip_address) resource = { 'resource_id': instance.id, 'resource_url': final_address, 'mac_addr': addresses[0].get('OS-EXT-IPS-MAC:mac_addr'), 'image_id': instance.image['id'], 'flavor_id': instance.flavor['id'] } resources.append(resource) except KeyError: LOG.error("Couldn't obtain IP address of " "instance %s" % instance.id) return resources
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