77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
# 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 karbor.common import constants
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from karbor.resource import Resource
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from karbor.services.protection import resource_flow
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from oslo_log import log as logging
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from taskflow import task
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LOG = logging.getLogger(__name__)
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class InitiateProtectTask(task.Task):
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def execute(self, checkpoint, *args, **kwargs):
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LOG.debug("Initiate protect checkpoint_id: %s", checkpoint.id)
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checkpoint.status = constants.CHECKPOINT_STATUS_PROTECTING
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checkpoint.commit()
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def revert(self, checkpoint, *args, **kwargs):
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LOG.debug("Failed to protect checkpoint_id: %s", checkpoint.id)
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checkpoint.status = constants.CHECKPOINT_STATUS_ERROR
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checkpoint.commit()
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class CompleteProtectTask(task.Task):
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def execute(self, checkpoint):
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LOG.debug("Complete protect checkpoint_id: %s", checkpoint.id)
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checkpoint.status = constants.CHECKPOINT_STATUS_AVAILABLE
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checkpoint.commit()
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def get_flow(context, protectable_registry, workflow_engine, plan, provider,
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checkpoint):
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# The 'extra-info' field of resources in plan is optional
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# The extra_info field of the resource is a dict.
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# The dict can not be handled by build_graph. It will throw a
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# error. TypeError: unhashable type: 'dict'
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resources = set()
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for item in plan.get("resources"):
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item["extra_info"] = None
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resources.add(Resource(**item))
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resource_graph = protectable_registry.build_graph(context,
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resources)
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checkpoint.resource_graph = resource_graph
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checkpoint.commit()
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flow_name = "Protect_" + plan.get('id')
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protection_flow = workflow_engine.build_flow(flow_name, 'linear')
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plugins = provider.load_plugins()
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resources_task_flow = resource_flow.build_resource_flow(
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operation_type=constants.OPERATION_PROTECT,
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context=context,
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workflow_engine=workflow_engine,
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resource_graph=resource_graph,
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plugins=plugins,
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parameters=plan.get('parameters'),
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)
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workflow_engine.add_tasks(
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protection_flow,
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InitiateProtectTask(),
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resources_task_flow,
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CompleteProtectTask(),
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)
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flow_engine = workflow_engine.get_engine(protection_flow, store={
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'checkpoint': checkpoint
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})
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return flow_engine
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