ceilometer/ceilometer/hardware/discovery.py

134 lines
5.0 KiB
Python

# -*- 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')
]
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
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