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#
# 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 six
from oslo.utils import excutils
from heat.common.i18n import _
from heat.common.i18n import _LE
from heat.engine import attributes
from heat.engine import constraints
from heat.engine import properties
from heat.engine import resource
from heat.engine import support
from heat.openstack.common import log as logging
LOG = logging.getLogger(__name__)
class NovaFloatingIp(resource.Resource):
support_status = support.SupportStatus(version='2014.1')
PROPERTIES = (POOL,) = ('pool',)
ATTRIBUTES = (
POOL_ATTR, IP,
) = (
'pool', 'ip',
)
properties_schema = {
POOL: properties.Schema(
properties.Schema.STRING,
description=_('Allocate a floating IP from a given '
'floating IP pool.')
),
}
attributes_schema = {
POOL_ATTR: attributes.Schema(
_('Pool from which floating IP is allocated.')
),
IP: attributes.Schema(
_('Allocated floating IP address.')
),
}
default_client_name = 'nova'
def __init__(self, name, json_snippet, stack):
super(NovaFloatingIp, self).__init__(name, json_snippet, stack)
self._floating_ip = None
def _get_resource(self):
if self._floating_ip is None and self.resource_id is not None:
self._floating_ip = self.nova().floating_ips.get(self.resource_id)
return self._floating_ip
def handle_create(self):
try:
pool = self.properties.get(self.POOL)
floating_ip = self.nova().floating_ips.create(pool=pool)
except Exception as e:
with excutils.save_and_reraise_exception():
if self.client_plugin().is_not_found(e):
if pool is None:
LOG.error(_LE('Could not allocate floating IP. '
'Probably there is no default floating'
' IP pool is configured.'))
self.resource_id_set(floating_ip.id)
self._floating_ip = floating_ip
def handle_delete(self):
if self.resource_id is not None:
try:
self.nova().floating_ips.delete(self.resource_id)
except Exception as e:
self.client_plugin().ignore_not_found(e)
def _resolve_attribute(self, key):
floating_ip = self._get_resource()
attributes = {
self.POOL_ATTR: getattr(floating_ip, self.POOL_ATTR, None),
self.IP: floating_ip.ip
}
return six.text_type(attributes[key])
class NovaFloatingIpAssociation(resource.Resource):
support_status = support.SupportStatus(version='2014.1')
PROPERTIES = (
SERVER, FLOATING_IP
) = (
'server_id', 'floating_ip'
)
properties_schema = {
SERVER: properties.Schema(
properties.Schema.STRING,
_('Server to assign floating IP to.'),
required=True,
update_allowed=True,
constraints=[
constraints.CustomConstraint('nova.server')
]
),
FLOATING_IP: properties.Schema(
properties.Schema.STRING,
_('ID of the floating IP to assign to the server.'),
required=True,
update_allowed=True
),
}
default_client_name = 'nova'
def FnGetRefId(self):
return self.physical_resource_name_or_FnGetRefId()
def handle_create(self):
server = self.nova().servers.get(self.properties[self.SERVER])
fl_ip = self.nova().floating_ips.get(self.properties[self.FLOATING_IP])
self.nova().servers.add_floating_ip(server, fl_ip.ip)
self.resource_id_set('%s-%s' % (fl_ip.id, fl_ip.ip))
def handle_delete(self):
if self.resource_id is None:
return
try:
server = self.nova().servers.get(self.properties[self.SERVER])
if server:
fl_ip = self.nova().floating_ips.\
get(self.properties[self.FLOATING_IP])
self.nova().servers.remove_floating_ip(server, fl_ip.ip)
except Exception as e:
self.client_plugin().ignore_not_found(e)
def handle_update(self, json_snippet, tmpl_diff, prop_diff):
if prop_diff:
# If floating_ip in prop_diff, we need to remove the old floating
# ip from the old server, and then to add the new floating ip
# to the old/new(if the server_id is changed) server.
# If prop_diff only has the server_id, no need to remove the
# floating ip from the old server, nova does this automatically
# when calling add_floating_ip().
if self.FLOATING_IP in prop_diff:
self.handle_delete()
server_id = (prop_diff.get(self.SERVER) or
self.properties[self.SERVER])
fl_ip_id = (prop_diff.get(self.FLOATING_IP) or
self.properties[self.FLOATING_IP])
server = self.nova().servers.get(server_id)
fl_ip = self.nova().floating_ips.get(fl_ip_id)
self.nova().servers.add_floating_ip(server, fl_ip.ip)
self.resource_id_set('%s-%s' % (fl_ip.id, fl_ip.ip))
def resource_mapping():
return {
'OS::Nova::FloatingIP': NovaFloatingIp,
'OS::Nova::FloatingIPAssociation': NovaFloatingIpAssociation,
}
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