79 lines
2.9 KiB
Python
79 lines
2.9 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 rally.common import cfg
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from rally.common import utils as common_utils
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from rally.task import atomic
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from rally.task import utils
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CONF = cfg.CONF
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class Stack(common_utils.RandomNameGeneratorMixin):
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"""Represent heat stack.
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Usage:
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>>> stack = Stack(scenario, task, "template.yaml", parameters={"nodes": 3})
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>>> do_testing(stack)
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>>> stack.update(nodes=4)
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>>> do_testing(stack)
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"""
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def __init__(self, scenario, task, template, files, parameters=None):
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"""Init heat wrapper.
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:param Scenario scenario: scenario instance
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:param Task task: task instance
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:param str template: template file path
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:param dict files: dict with file name and path
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:param dict parameters: parameters for template
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"""
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self.scenario = scenario
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self.task = task
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self.template = open(template).read()
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self.files = {}
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self.parameters = parameters
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for name, path in files.items():
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self.files[name] = open(path).read()
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def _wait(self, ready_statuses, failure_statuses):
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self.stack = utils.wait_for_status(
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self.stack,
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check_interval=CONF.openstack.heat_stack_create_poll_interval,
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timeout=CONF.openstack.heat_stack_create_timeout,
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ready_statuses=ready_statuses,
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failure_statuses=failure_statuses,
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update_resource=utils.get_from_manager(),
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)
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def create(self):
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with atomic.ActionTimer(self.scenario, "heat.create"):
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self.stack = self.scenario.clients("heat").stacks.create(
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stack_name=self.scenario.generate_random_name(),
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template=self.template,
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files=self.files,
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parameters=self.parameters)
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self.stack_id = self.stack["stack"]["id"]
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self.stack = self.scenario.clients(
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"heat").stacks.get(self.stack_id)
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self._wait(["CREATE_COMPLETE"], ["CREATE_FAILED"])
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def update(self, data):
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self.parameters.update(data)
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with atomic.ActionTimer(self.scenario, "heat.update"):
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self.scenario.clients("heat").stacks.update(
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self.stack_id, template=self.template,
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files=self.files, parameters=self.parameters)
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self._wait(["UPDATE_COMPLETE"], ["UPDATE_FAILED"])
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