111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
# Copyright 2015 Hewlett-Packard Development Company, L.P.
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#
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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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#
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import logging
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import time
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from oslo.config import cfg
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from stevedore import driver as stevedore_driver
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from taskflow import task
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from octavia.common import constants
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from octavia.common import exceptions
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from octavia.i18n import _LE, _LW
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CONF = cfg.CONF
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CONF.import_group('controller_worker', 'octavia.common.config')
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LOG = logging.getLogger(__name__)
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class BaseComputeTask(task.Task):
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"""Base task to load drivers common to the tasks."""
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def __init__(self, **kwargs):
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super(BaseComputeTask, self).__init__(**kwargs)
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self.compute = stevedore_driver.DriverManager(
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namespace='octavia.compute.drivers',
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name=CONF.controller_worker.compute_driver,
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invoke_on_load=True,
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invoke_kwds={'region': CONF.nova_region_name}
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).driver
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class ComputeCreate(BaseComputeTask):
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"""Create the compute instance for a new amphora."""
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def execute(self, amphora):
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"""Create an amphora
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:returns: an amphora
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"""
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LOG.debug("Nova Create execute for amphora with id %s" % amphora.id)
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try:
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# todo(german): add security groups
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compute_id = self.compute.build(
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name="amphora-" + amphora.id,
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amphora_flavor=CONF.controller_worker.amp_flavor_id,
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image_id=CONF.controller_worker.amp_image_id,
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key_name=CONF.controller_worker.amp_ssh_key,
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sec_groups=None,
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network_ids=CONF.controller_worker.amp_network)
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LOG.debug("Server created with id: %s for amphora id: %s" %
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(compute_id, amphora.id))
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amphora.compute_id = compute_id
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return amphora
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except Exception as e:
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LOG.error(_LE("Nova create for amphora id: %(amp)s "
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"failed: %(exp)s"),
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{'amp': amphora.id, 'exp': e})
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raise e
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def revert(self, amphora, *args, **kwargs):
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"""This method will revert the creation of the
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amphora. So it will just delete it in this flow
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"""
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LOG.warn(_LW("Reverting Nova create for amphora with id"
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"%(amp)s and compute id: %(comp)s"),
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{'amp': amphora.id, 'comp': amphora.compute_id})
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try:
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self.compute.delete(amphora.compute_id)
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amphora.compute_id = None
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except Exception as e:
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LOG.error(_LE("Reverting Nova create failed"
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" with exception %s"), e)
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return
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class ComputeWait(BaseComputeTask):
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"""Wait for the compute driver to mark the amphora active."""
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def execute(self, amphora):
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"""Wait for the compute driver to mark the amphora active
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:raises: Generic exception if the amphora is not active
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:returns: An amphora object
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"""
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time.sleep(CONF.controller_worker.amp_active_wait_sec)
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amp = self.compute.get_amphora(amphora.compute_id)
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if amp.status == constants.ACTIVE:
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amphora.lb_network_ip = amp.lb_network_ip
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return amphora
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raise exceptions.ComputeWaitTimeoutException()
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