204 lines
7.3 KiB
Python
204 lines
7.3 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 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.resources.openstack.octavia import octavia_base
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from heat.engine import translation
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class Listener(octavia_base.OctaviaBase):
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"""A resource for managing octavia Listeners.
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This resource creates and manages Neutron octavia Listeners,
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which represent a listening endpoint for the vip.
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"""
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PROPERTIES = (
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PROTOCOL_PORT, PROTOCOL, LOADBALANCER, DEFAULT_POOL, NAME,
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ADMIN_STATE_UP, DESCRIPTION, DEFAULT_TLS_CONTAINER_REF,
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SNI_CONTAINER_REFS, CONNECTION_LIMIT, TENANT_ID
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) = (
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'protocol_port', 'protocol', 'loadbalancer', 'default_pool', 'name',
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'admin_state_up', 'description', 'default_tls_container_ref',
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'sni_container_refs', 'connection_limit', 'tenant_id'
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)
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SUPPORTED_PROTOCOLS = (TCP, HTTP, HTTPS, TERMINATED_HTTPS, PROXY) = (
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'TCP', 'HTTP', 'HTTPS', 'TERMINATED_HTTPS', 'PROXY')
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ATTRIBUTES = (
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LOADBALANCERS_ATTR, DEFAULT_POOL_ID_ATTR
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) = (
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'loadbalancers', 'default_pool_id'
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)
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properties_schema = {
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PROTOCOL_PORT: properties.Schema(
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properties.Schema.INTEGER,
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_('TCP or UDP port on which to listen for client traffic.'),
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required=True,
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constraints=[
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constraints.Range(1, 65535),
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]
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),
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PROTOCOL: properties.Schema(
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properties.Schema.STRING,
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_('Protocol on which to listen for the client traffic.'),
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required=True,
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constraints=[
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constraints.AllowedValues(SUPPORTED_PROTOCOLS),
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]
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),
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LOADBALANCER: properties.Schema(
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properties.Schema.STRING,
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_('ID or name of the load balancer with which listener '
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'is associated.'),
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constraints=[
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constraints.CustomConstraint('octavia.loadbalancer')
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]
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),
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DEFAULT_POOL: properties.Schema(
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properties.Schema.STRING,
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_('ID or name of the default pool for the listener.'),
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update_allowed=True,
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constraints=[
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constraints.CustomConstraint('octavia.pool')
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],
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),
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NAME: properties.Schema(
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properties.Schema.STRING,
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_('Name of this listener.'),
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update_allowed=True
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),
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ADMIN_STATE_UP: properties.Schema(
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properties.Schema.BOOLEAN,
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_('The administrative state of this listener.'),
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update_allowed=True,
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default=True
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),
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DESCRIPTION: properties.Schema(
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properties.Schema.STRING,
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_('Description of this listener.'),
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update_allowed=True,
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default=''
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),
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DEFAULT_TLS_CONTAINER_REF: properties.Schema(
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properties.Schema.STRING,
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_('Default TLS container reference to retrieve TLS '
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'information.'),
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update_allowed=True
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),
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SNI_CONTAINER_REFS: properties.Schema(
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properties.Schema.LIST,
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_('List of TLS container references for SNI.'),
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update_allowed=True
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),
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CONNECTION_LIMIT: properties.Schema(
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properties.Schema.INTEGER,
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_('The maximum number of connections permitted for this '
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'load balancer. Defaults to -1, which is infinite.'),
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update_allowed=True,
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default=-1,
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constraints=[
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constraints.Range(min=-1),
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]
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),
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TENANT_ID: properties.Schema(
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properties.Schema.STRING,
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_('The ID of the tenant who owns the listener.')
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),
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}
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attributes_schema = {
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LOADBALANCERS_ATTR: attributes.Schema(
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_('ID of the load balancer this listener is associated to.'),
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type=attributes.Schema.LIST
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),
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DEFAULT_POOL_ID_ATTR: attributes.Schema(
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_('ID of the default pool this listener is associated to.'),
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type=attributes.Schema.STRING
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)
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}
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def translation_rules(self, props):
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return [
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translation.TranslationRule(
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props,
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translation.TranslationRule.RESOLVE,
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[self.LOADBALANCER],
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client_plugin=self.client_plugin(),
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finder='get_loadbalancer',
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),
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translation.TranslationRule(
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props,
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translation.TranslationRule.RESOLVE,
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[self.DEFAULT_POOL],
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client_plugin=self.client_plugin(),
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finder='get_pool'
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),
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]
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def _prepare_args(self, properties):
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props = dict((k, v) for k, v in properties.items() if v is not None)
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if self.NAME not in props:
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props[self.NAME] = self.physical_resource_name()
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if self.LOADBALANCER in props:
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props['loadbalancer_id'] = props.pop(self.LOADBALANCER)
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if self.DEFAULT_POOL in props:
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props['default_pool_id'] = props.pop(self.DEFAULT_POOL)
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return props
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def validate(self):
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super(Listener, self).validate()
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if (self.properties[self.LOADBALANCER] is None
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and self.properties[self.DEFAULT_POOL] is None):
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raise exception.PropertyUnspecifiedError(self.LOADBALANCER,
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self.DEFAULT_POOL)
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if self.properties[self.PROTOCOL] == self.TERMINATED_HTTPS:
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if self.properties[self.DEFAULT_TLS_CONTAINER_REF] is None:
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msg = (_('Property %(ref)s required when protocol is '
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'%(term)s.') % {'ref': self.DEFAULT_TLS_CONTAINER_REF,
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'term': self.TERMINATED_HTTPS})
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raise exception.StackValidationFailed(message=msg)
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def _resource_create(self, properties):
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return self.client().listener_create(
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json={'listener': properties})['listener']
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def handle_update(self, json_snippet, tmpl_diff, prop_diff):
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self._update_called = False
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if self.DEFAULT_POOL in prop_diff:
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prop_diff['default_pool_id'] = prop_diff.pop(self.DEFAULT_POOL)
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return prop_diff
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def _resource_update(self, prop_diff):
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self.client().listener_set(self.resource_id,
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json={'listener': prop_diff})
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def _resource_delete(self):
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self.client().listener_delete(self.resource_id)
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def _show_resource(self):
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return self.client().listener_show(self.resource_id)
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def resource_mapping():
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return {
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'OS::Octavia::Listener': Listener,
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}
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