OpenStack Orchestration (Heat)
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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.
from heat.common.i18n import _
from heat.engine import attributes
from heat.engine import properties
from heat.engine.resources.openstack.neutron import neutron
from heat.engine import support
class Net(neutron.NeutronResource):
PROPERTIES = (
NAME, VALUE_SPECS, ADMIN_STATE_UP, TENANT_ID, SHARED,
DHCP_AGENT_IDS, PORT_SECURITY_ENABLED,
) = (
'name', 'value_specs', 'admin_state_up', 'tenant_id', 'shared',
'dhcp_agent_ids', 'port_security_enabled',
)
ATTRIBUTES = (
STATUS, NAME_ATTR, SUBNETS, ADMIN_STATE_UP_ATTR, TENANT_ID_ATTR, SHOW,
PORT_SECURITY_ENABLED_ATTR, MTU_ATTR,
) = (
"status", "name", "subnets", "admin_state_up", "tenant_id", "show",
"port_security_enabled", "mtu",
)
properties_schema = {
NAME: properties.Schema(
properties.Schema.STRING,
_('A string specifying a symbolic name for the network, which is '
'not required to be unique.'),
update_allowed=True
),
VALUE_SPECS: properties.Schema(
properties.Schema.MAP,
_('Extra parameters to include in the "network" object in the '
'creation request. Parameters are often specific to installed '
'hardware or extensions.'),
default={},
update_allowed=True
),
ADMIN_STATE_UP: properties.Schema(
properties.Schema.BOOLEAN,
_('A boolean value specifying the administrative status of the '
'network.'),
default=True,
update_allowed=True
),
TENANT_ID: properties.Schema(
properties.Schema.STRING,
_('The ID of the tenant which will own the network. Only '
'administrative users can set the tenant identifier; this '
'cannot be changed using authorization policies.')
),
SHARED: properties.Schema(
properties.Schema.BOOLEAN,
_('Whether this network should be shared across all tenants. '
'Note that the default policy setting restricts usage of this '
'attribute to administrative users only.'),
default=False,
update_allowed=True
),
DHCP_AGENT_IDS: properties.Schema(
properties.Schema.LIST,
_('The IDs of the DHCP agent to schedule the network. Note that '
'the default policy setting in Neutron restricts usage of this '
'property to administrative users only.'),
update_allowed=True
),
PORT_SECURITY_ENABLED: properties.Schema(
properties.Schema.BOOLEAN,
_('Flag to enable/disable port security on the network. It '
'provides the default value for the attribute of the ports '
'created on this network'),
update_allowed=True,
support_status=support.SupportStatus(version='5.0.0')
),
}
attributes_schema = {
STATUS: attributes.Schema(
_("The status of the network."),
type=attributes.Schema.STRING
),
NAME_ATTR: attributes.Schema(
_("The name of the network."),
type=attributes.Schema.STRING
),
SUBNETS: attributes.Schema(
_("Subnets of this network."),
type=attributes.Schema.LIST
),
ADMIN_STATE_UP_ATTR: attributes.Schema(
_("The administrative status of the network."),
type=attributes.Schema.STRING
),
TENANT_ID_ATTR: attributes.Schema(
_("The tenant owning this network."),
type=attributes.Schema.STRING
),
SHOW: attributes.Schema(
_("All attributes."),
type=attributes.Schema.MAP
),
PORT_SECURITY_ENABLED_ATTR: attributes.Schema(
_("Port security enabled of the network."),
support_status=support.SupportStatus(version='5.0.0'),
type=attributes.Schema.BOOLEAN
),
MTU_ATTR: attributes.Schema(
_("The maximum transmission unit size(in bytes) for the network."),
support_status=support.SupportStatus(version='5.0.0'),
type=attributes.Schema.INTEGER
),
}
def handle_create(self):
props = self.prepare_properties(
self.properties,
self.physical_resource_name())
dhcp_agent_ids = props.pop(self.DHCP_AGENT_IDS, None)
net = self.neutron().create_network({'network': props})['network']
self.resource_id_set(net['id'])
if dhcp_agent_ids:
self._replace_dhcp_agents(dhcp_agent_ids)
def _show_resource(self):
return self.neutron().show_network(
self.resource_id)['network']
def check_create_complete(self, *args):
attributes = self._show_resource()
return self.is_built(attributes)
def handle_delete(self):
client = self.neutron()
try:
client.delete_network(self.resource_id)
except Exception as ex:
self.client_plugin().ignore_not_found(ex)
else:
return True
def handle_update(self, json_snippet, tmpl_diff, prop_diff):
props = self.prepare_update_properties(json_snippet)
dhcp_agent_ids = props.pop(self.DHCP_AGENT_IDS, None)
if self.DHCP_AGENT_IDS in prop_diff:
if dhcp_agent_ids is not None:
self._replace_dhcp_agents(dhcp_agent_ids)
del prop_diff[self.DHCP_AGENT_IDS]
if len(prop_diff) > 0:
self.neutron().update_network(
self.resource_id, {'network': props})
def check_update_complete(self, *args):
attributes = self._show_resource()
return self.is_built(attributes)
def _replace_dhcp_agents(self, dhcp_agent_ids):
ret = self.neutron().list_dhcp_agent_hosting_networks(
self.resource_id)
old = set([agent['id'] for agent in ret['agents']])
new = set(dhcp_agent_ids)
for dhcp_agent_id in new - old:
try:
self.neutron().add_network_to_dhcp_agent(
dhcp_agent_id, {'network_id': self.resource_id})
except Exception as ex:
# if 409 is happened, the agent is already associated.
if not self.client_plugin().is_conflict(ex):
raise
for dhcp_agent_id in old - new:
try:
self.neutron().remove_network_from_dhcp_agent(
dhcp_agent_id, self.resource_id)
except Exception as ex:
# assume 2 patterns about status_code following:
# 404: the network or agent is already gone
# 409: the network isn't scheduled by the dhcp_agent
if not (self.client_plugin().is_conflict(ex) or
self.client_plugin().is_not_found(ex)):
raise
def resource_mapping():
return {
'OS::Neutron::Net': Net,
}