aodh/ceilometer/nova_client.py
Julien Danjou e541fcb0d4 Allow to specify the endpoint type to use
Not everybody will want to use publicURL, so let's make this configurable.

Change-Id: Ice85a8ef1083580d89285e83239de872939665af
Fixes: bug#1188469
2013-07-15 13:19:54 +02:00

102 lines
3.3 KiB
Python

# -*- encoding: utf-8 -*-
#
# Author: John Tran <jhtran@att.com>
#
# 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.
import functools
import novaclient
from novaclient.v1_1 import client as nova_client
from oslo.config import cfg
from ceilometer.openstack.common import log
cfg.CONF.import_group('service_credentials', 'ceilometer.service')
LOG = log.getLogger(__name__)
def logged(func):
@functools.wraps(func)
def with_logging(*args, **kwargs):
try:
return func(*args, **kwargs)
except Exception as e:
LOG.exception(e)
raise
return with_logging
class Client(object):
def __init__(self):
"""Returns a nova Client object."""
conf = cfg.CONF.service_credentials
tenant = conf.os_tenant_id and conf.os_tenant_id or conf.os_tenant_name
self.nova_client = nova_client.Client(
username=cfg.CONF.service_credentials.os_username,
api_key=cfg.CONF.service_credentials.os_password,
project_id=tenant,
auth_url=cfg.CONF.service_credentials.os_auth_url,
endpoint_type=cfg.CONF.service_credentials.os_endpoint_type,
no_cache=True)
def _with_flavor_and_image(self, instances):
flavor_attrs = ['name', 'vcpus', 'ram', 'disk']
for instance in instances:
fid = instance.flavor['id']
try:
flavor = self.nova_client.flavors.get(fid)
except novaclient.exceptions.NotFound:
flavor = None
for attr in flavor_attrs:
try:
instance.flavor[attr] = getattr(flavor, attr)
except (KeyError, AttributeError):
if attr == 'name':
instance.flavor['name'] = 'unknown-id-%s' % fid
iid = instance.image['id']
try:
image = self.nova_client.images.get(iid)
except novaclient.exceptions.NotFound:
image = None
try:
image_meta = getattr(image, 'metadata')
except (KeyError, AttributeError):
instance.image['name'] = 'unknown-id-%s' % iid
else:
instance.image['name'] = getattr(image, 'name')
instance.kernel_id = image_meta['kernel_id']
instance.ramdisk_id = image_meta['ramdisk_id']
return instances
@logged
def instance_get_all_by_host(self, hostname):
"""Returns list of instances on particular host."""
search_opts = {'host': hostname, 'all_tenants': True}
return self._with_flavor_and_image(self.nova_client.servers.list(
detailed=True,
search_opts=search_opts))
@logged
def floating_ip_get_all(self):
"""Returns all floating ips."""
return self.nova_client.floating_ips.list()