aodh/ceilometer/hardware/discovery.py
Ladislav Smola 670736a2b6 Automatic discovery of TripleO Overcloud hardware
-geting IP addresses from Undercloud nova, allowing
 to poll all Overcloud nodes via SNMP
-adding support of basic auth, user_name and password
 used in TripleO by default

Change-Id: I189dbba9579055c8a1a878a769760a72e9174c6d
2014-07-28 07:53:03 +00:00

63 lines
2.2 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 ceilometer import nova_client
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer import plugin
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 password of all the nodes running in the cloud'),
]
cfg.CONF.register_opts(OPTS, group='hardware')
class NodesDiscoveryTripleO(plugin.DiscoveryBase):
def __init__(self):
super(NodesDiscoveryTripleO, self).__init__()
self.nova_cli = nova_client.Client()
def discover(self, param=None):
"""Discover resources to monitor."""
instances = self.nova_cli.instance_get_all()
ip_addresses = []
for instance in instances:
try:
ip_address = instance.addresses['ctlplane'][0]['addr']
final_address = (
cfg.CONF.hardware.url_scheme +
cfg.CONF.hardware.readonly_user_name + ':' +
cfg.CONF.hardware.readonly_user_password + '@' +
ip_address)
ip_addresses.append(final_address)
except KeyError:
LOG.error(_("Couldn't obtain IP address of"
"instance %s") % instance.id)
return ip_addresses