# octavia.compute.drivers.noop_driver.driver

# Source code for octavia.compute.drivers.noop_driver.driver

    # Copyright 2015 Hewlett-Packard Development Company, L.P.
    #
    # 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 collections import namedtuple

    from oslo_log import log as logging
    from oslo_utils import uuidutils
    from sqlalchemy import Column
    from sqlalchemy import create_engine
    from sqlalchemy import MetaData
    from sqlalchemy import String
    from sqlalchemy import Table
    from sqlalchemy import update

    from octavia.common import constants
    from octavia.common import data_models
    from octavia.compute import compute_base as driver_base
    from octavia.network import data_models as network_models

    LOG = logging.getLogger(__name__)

    NoopServerGroup = namedtuple('ServerGroup', ['id'])

    class NoopManager:
        def __init__(self):
            super().__init__()
            self.computeconfig = {}

            # Get a DB engine for the network no-op DB
            # Required to update the ports when a port is attached to a compute
            self.engine = create_engine('sqlite:////tmp/octavia-network-noop.db',
                                        isolation_level='SERIALIZABLE')
            metadata_obj = MetaData()

            self.interfaces_table = Table(
                'interfaces',
                metadata_obj,
                Column('port_id', String(36)),
                Column('network_id', String(36)),
                Column('compute_id', String(36)),
                Column('vnic_type', String(6)))

        def build(self, name="amphora_name", amphora_flavor=None,
                  image_tag=None, image_owner=None, key_name=None, sec_groups=None,
                  network_ids=None, config_drive_files=None, user_data=None,
                  port_ids=None, server_group_id=None, availability_zone=None):
            LOG.debug("Compute %s no-op, build name %s, amphora_flavor %s, "
                      "image_tag %s, image_owner %s, key_name %s, sec_groups %s, "
                      "network_ids %s, config_drive_files %s, user_data %s, "
                      "port_ids %s, server_group_id %s, availability_zone %s",
                      self.__class__.__name__,
                      name, amphora_flavor, image_tag, image_owner,
                      key_name, sec_groups, network_ids, config_drive_files,
                      user_data, port_ids, server_group_id, availability_zone)
            self.computeconfig[(name, amphora_flavor, image_tag,
                                image_owner, key_name, user_data,
                                server_group_id)] = (
                name, amphora_flavor,
                image_tag, image_owner, key_name, sec_groups,
                network_ids, config_drive_files, user_data, port_ids,
                server_group_id, 'build')
            compute_id = uuidutils.generate_uuid()
            return compute_id

        def delete(self, compute_id):
            LOG.debug("Compute %s no-op, compute_id %s",
                      self.__class__.__name__, compute_id)
            self.computeconfig[compute_id] = (compute_id, 'delete')

        def status(self, compute_id):
            LOG.debug("Compute %s no-op, compute_id %s",
                      self.__class__.__name__, compute_id)
            self.computeconfig[compute_id] = (compute_id, 'status')
            return constants.UP

        def get_amphora(self, compute_id, management_network_id=None):
            LOG.debug("Compute %s no-op, compute_id %s, management_network_id %s",
                      self.__class__.__name__, compute_id, management_network_id)
            self.computeconfig[(compute_id, management_network_id)] = (
                compute_id, management_network_id, 'get_amphora')
            return data_models.Amphora(
                compute_id=compute_id,
                status=constants.ACTIVE,
                lb_network_ip='192.0.2.1'
            ), None

        def create_server_group(self, name, policy):
            LOG.debug("Create Server Group %s no-op, name %s, policy %s ",
                      self.__class__.__name__, name, policy)
            self.computeconfig[(name, policy)] = (name, policy, 'create')
            return NoopServerGroup(id=uuidutils.generate_uuid())

        def delete_server_group(self, server_group_id):
            LOG.debug("Delete Server Group %s no-op, id %s ",
                      self.__class__.__name__, server_group_id)
            self.computeconfig[server_group_id] = (server_group_id, 'delete')

        def attach_network_or_port(self, compute_id, network_id=None,
                                   ip_address=None, port_id=None):
            LOG.debug("Compute %s no-op, attach_network_or_port compute_id %s,"
                      "network_id %s, ip_address %s, port_id %s",
                      self.__class__.__name__, compute_id,
                      network_id, ip_address, port_id)
            self.computeconfig[(compute_id, network_id, ip_address, port_id)] = (
                compute_id, network_id, ip_address, port_id,
                'attach_network_or_port')

            # Update the port in the network no-op DB
            with self.engine.connect() as connection:
                connection.execute(update(self.interfaces_table).where(
                    self.interfaces_table.c.port_id == port_id).values(
                        compute_id=compute_id))
                connection.commit()

            return network_models.Interface(
                id=uuidutils.generate_uuid(),
                compute_id=compute_id,
                network_id=network_id,
                fixed_ips=[],
                port_id=uuidutils.generate_uuid(),
                vnic_type=constants.VNIC_TYPE_NORMAL
            )

        def detach_port(self, compute_id, port_id):
            LOG.debug("Compute %s no-op, detach_network compute_id %s, "
                      "port_id %s",
                      self.__class__.__name__, compute_id, port_id)
            self.computeconfig[(compute_id, port_id)] = (
                compute_id, port_id, 'detach_port')

        def validate_flavor(self, flavor_id):
            LOG.debug("Compute %s no-op, validate_flavor flavor_id %s",
                      self.__class__.__name__, flavor_id)
            self.computeconfig[flavor_id] = (flavor_id, 'validate_flavor')

        def validate_availability_zone(self, availability_zone):
            LOG.debug("Compute %s no-op, validate_availability_zone name %s",
                      self.__class__.__name__, availability_zone)
            self.computeconfig[availability_zone] = (
                availability_zone, 'validate_availability_zone')

    class NoopComputeDriver(driver_base.ComputeBase):
        def __init__(self):
            super().__init__()
            self.driver = NoopManager()

        def build(self, name="amphora_name", amphora_flavor=None,
                  image_tag=None, image_owner=None, key_name=None, sec_groups=None,
                  network_ids=None, config_drive_files=None, user_data=None,
                  port_ids=None, server_group_id=None, availability_zone=None):

            compute_id = self.driver.build(name, amphora_flavor,
                                           image_tag, image_owner,
                                           key_name, sec_groups, network_ids,
                                           config_drive_files, user_data, port_ids,
                                           server_group_id, availability_zone)
            return compute_id

        def delete(self, compute_id):
            self.driver.delete(compute_id)

        def status(self, compute_id):
            return self.driver.status(compute_id)

        def get_amphora(self, compute_id, management_network_id=None):
            return self.driver.get_amphora(compute_id, management_network_id)

        def create_server_group(self, name, policy):
            return self.driver.create_server_group(name, policy)

        def delete_server_group(self, server_group_id):
            self.driver.delete_server_group(server_group_id)

        def attach_network_or_port(self, compute_id, network_id=None,
                                   ip_address=None, port_id=None):
            self.driver.attach_network_or_port(compute_id, network_id, ip_address,
                                               port_id)

        def detach_port(self, compute_id, port_id):
            self.driver.detach_port(compute_id, port_id)

        def validate_flavor(self, flavor_id):
            self.driver.validate_flavor(flavor_id)

        def validate_availability_zone(self, availability_zone):
            self.driver.validate_availability_zone(availability_zone)

this page last updated: 2025-04-03 17:35:57

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