212 lines
7.2 KiB
Python
212 lines
7.2 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as logging
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import six
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from heat.common import exception
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from heat.common.i18n import _
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from heat.engine import attributes
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from heat.engine import constraints
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from heat.engine import properties
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from heat.engine import resource
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from heat.engine import support
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LOG = logging.getLogger(__name__)
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class NovaFloatingIp(resource.Resource):
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"""A resource for managing Nova floating IPs.
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Floating IP addresses can change their association between instances by
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action of the user. One of the most common use cases for floating IPs is
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to provide public IP addresses to a private cloud, where there are a
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limited number of IP addresses available. Another is for a public cloud
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user to have a "static" IP address that can be reassigned when an instance
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is upgraded or moved.
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"""
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deprecation_msg = _('Please use OS::Neutron::FloatingIP instead.')
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support_status = support.SupportStatus(
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status=support.HIDDEN,
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message=deprecation_msg,
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version='11.0.0',
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previous_status=support.SupportStatus(
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status=support.DEPRECATED,
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message=deprecation_msg,
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version='9.0.0',
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previous_status=support.SupportStatus(version='2014.1')
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)
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)
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required_service_extension = 'os-floating-ips'
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PROPERTIES = (POOL,) = ('pool',)
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ATTRIBUTES = (
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POOL_ATTR, IP,
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) = (
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'pool', 'ip',
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)
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properties_schema = {
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POOL: properties.Schema(
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properties.Schema.STRING,
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description=_('Allocate a floating IP from a given '
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'floating IP pool. Now that nova-network '
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'is not supported this represents the '
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'external network.')
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),
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}
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attributes_schema = {
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POOL_ATTR: attributes.Schema(
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_('Pool from which floating IP is allocated.'),
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type=attributes.Schema.STRING
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),
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IP: attributes.Schema(
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_('Allocated floating IP address.'),
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type=attributes.Schema.STRING
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),
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}
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def __init__(self, name, json_snippet, stack):
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super(NovaFloatingIp, self).__init__(name, json_snippet, stack)
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self._floating_ip = None
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def _get_resource(self):
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if self._floating_ip is None and self.resource_id is not None:
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self._floating_ip = self.neutron().show_floatingip(
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self.resource_id)
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return self._floating_ip
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def get_external_network_id(self, pool=None):
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if pool:
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neutron_plugin = self.client_plugin('neutron')
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return neutron_plugin.find_resourceid_by_name_or_id(
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neutron_plugin.RES_TYPE_NETWORK,
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pool)
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ext_filter = {'router:external': True}
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ext_nets = self.neutron().list_networks(**ext_filter)['networks']
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if len(ext_nets) != 1:
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raise exception.Error(
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_('Expected 1 external network, found %d') % len(ext_nets))
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external_network_id = ext_nets[0]['id']
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return external_network_id
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def handle_create(self):
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ext_net_id = self.get_external_network_id(
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pool=self.properties[self.POOL])
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floating_ip = self.neutron().create_floatingip(
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{'floatingip': {'floating_network_id': ext_net_id}})
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self.resource_id_set(floating_ip['floatingip']['id'])
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self._floating_ip = floating_ip
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def handle_delete(self):
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with self.client_plugin('neutron').ignore_not_found:
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self.neutron().delete_floatingip(self.resource_id)
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def _resolve_attribute(self, key):
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if self.resource_id is None:
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return
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floating_ip = self._get_resource()
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attributes = {
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self.POOL_ATTR: floating_ip['floatingip']['floating_network_id'],
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self.IP: floating_ip['floatingip']['floating_ip_address']
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}
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return six.text_type(attributes[key])
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class NovaFloatingIpAssociation(resource.Resource):
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"""A resource associates Nova floating IP with Nova server resource.
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Resource for associating existing Nova floating IP and Nova server.
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"""
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deprecation_msg = _(
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'Please use OS::Neutron::FloatingIPAssociation instead.')
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support_status = support.SupportStatus(
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status=support.HIDDEN,
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message=deprecation_msg,
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version='11.0.0',
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previous_status=support.SupportStatus(
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status=support.DEPRECATED,
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message=deprecation_msg,
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version='9.0.0',
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previous_status=support.SupportStatus(version='2014.1')
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)
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)
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PROPERTIES = (
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SERVER, FLOATING_IP
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) = (
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'server_id', 'floating_ip'
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)
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properties_schema = {
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SERVER: properties.Schema(
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properties.Schema.STRING,
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_('Server to assign floating IP to.'),
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required=True,
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update_allowed=True,
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constraints=[
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constraints.CustomConstraint('nova.server')
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]
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),
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FLOATING_IP: properties.Schema(
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properties.Schema.STRING,
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_('ID of the floating IP to assign to the server.'),
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required=True,
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update_allowed=True
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),
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}
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default_client_name = 'nova'
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def get_reference_id(self):
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return self.physical_resource_name_or_FnGetRefId()
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def handle_create(self):
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self.client_plugin().associate_floatingip(
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self.properties[self.SERVER], self.properties[self.FLOATING_IP])
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self.resource_id_set(self.id)
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def handle_delete(self):
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if self.resource_id is None:
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return
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with self.client_plugin().ignore_not_found:
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self.client_plugin().dissociate_floatingip(
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self.properties[self.FLOATING_IP])
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def handle_update(self, json_snippet, tmpl_diff, prop_diff):
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if prop_diff:
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# If floating_ip in prop_diff, we need to remove the old floating
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# ip from the old server, and then to add the new floating ip
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# to the old/new(if the server_id is changed) server.
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if self.FLOATING_IP in prop_diff:
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self.handle_delete()
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server_id = (prop_diff.get(self.SERVER) or
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self.properties[self.SERVER])
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fl_ip_id = (prop_diff.get(self.FLOATING_IP) or
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self.properties[self.FLOATING_IP])
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self.client_plugin().associate_floatingip(server_id, fl_ip_id)
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self.resource_id_set(self.id)
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def resource_mapping():
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return {
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'OS::Nova::FloatingIP': NovaFloatingIp,
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'OS::Nova::FloatingIPAssociation': NovaFloatingIpAssociation,
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}
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