9c0873a587
Initially tasks were implemented with the possibility a design may have multiple sites in it and the task would operate on only one of them. Now a site design can contain only a single site, so no need to include the sitename in the operating context
674 lines
30 KiB
Python
674 lines
30 KiB
Python
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# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import uuid
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import time
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import threading
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import importlib
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import logging
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from copy import deepcopy
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from oslo_config import cfg
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import drydock_provisioner.drivers as drivers
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import drydock_provisioner.objects.task as tasks
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import drydock_provisioner.error as errors
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import drydock_provisioner.objects.fields as hd_fields
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class Orchestrator(object):
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# enabled_drivers is a map which provider drivers
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# should be enabled for use by this orchestrator
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def __init__(self, enabled_drivers=None, state_manager=None):
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self.enabled_drivers = {}
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self.state_manager = state_manager
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self.logger = logging.getLogger('drydock.orchestrator')
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if enabled_drivers is not None:
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oob_drivers = enabled_drivers.oob_driver
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# This is because oslo_config changes the option value
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# for multiopt depending on if multiple values are actually defined
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for d in oob_drivers:
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self.logger.info("Enabling OOB driver %s" % d)
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if d is not None:
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m, c = d.rsplit('.', 1)
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oob_driver_class = \
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getattr(importlib.import_module(m), c, None)
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if oob_driver_class is not None:
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if self.enabled_drivers.get('oob', None) is None:
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self.enabled_drivers['oob'] = []
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self.enabled_drivers['oob'].append(oob_driver_class(state_manager=state_manager,
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orchestrator=self))
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node_driver_name = enabled_drivers.node_driver
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if node_driver_name is not None:
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m, c = node_driver_name.rsplit('.', 1)
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node_driver_class = \
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getattr(importlib.import_module(m), c, None)
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if node_driver_class is not None:
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self.enabled_drivers['node'] = node_driver_class(state_manager=state_manager,
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orchestrator=self)
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network_driver_name = enabled_drivers.network_driver
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if network_driver_name is not None:
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m, c = network_driver_name.rsplit('.', 1)
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network_driver_class = \
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getattr(importlib.import_module(m), c, None)
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if network_driver_class is not None:
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self.enabled_drivers['network'] = network_driver_class(state_manager=state_manager,
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orchestrator=self)
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"""
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execute_task
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This is the core of the orchestrator. The task will describe the action
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to take and the context/scope of the command. We will then source
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the current designed state and current built state from the statemgmt
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module. Based on those 3 inputs, we'll decide what is needed next.
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"""
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def execute_task(self, task_id):
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if self.state_manager is None:
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raise errors.OrchestratorError("Cannot execute task without" \
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" initialized state manager")
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task = self.state_manager.get_task(task_id)
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if task is None:
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raise errors.OrchestratorError("Task %s not found."
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% (task_id))
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design_id = task.design_id
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# Just for testing now, need to implement with enabled_drivers
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# logic
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if task.action == hd_fields.OrchestratorAction.Noop:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Running)
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driver_task = self.create_task(tasks.DriverTask,
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design_id=0,
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action=hd_fields.OrchestratorAction.Noop,
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parent_task_id=task.get_id())
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driver = drivers.ProviderDriver(state_manager=self.state_manager,
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orchestrator=self)
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driver.execute_task(driver_task.get_id())
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driver_task = self.state_manager.get_task(driver_task.get_id())
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self.task_field_update(task_id, status=driver_task.get_status())
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return
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elif task.action == hd_fields.OrchestratorAction.ValidateDesign:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Running)
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try:
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site_design = self.get_effective_site(design_id)
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self.task_field_update(task_id,
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result=hd_fields.ActionResult.Success)
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except:
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self.task_field_update(task_id,
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result=hd_fields.ActionResult.Failure)
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self.task_field_update(task_id, status=hd_fields.TaskStatus.Complete)
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return
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elif task.action == hd_fields.OrchestratorAction.VerifySite:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Running)
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node_driver = self.enabled_drivers['node']
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if node_driver is not None:
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node_driver_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.ValidateNodeServices)
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node_driver.execute_task(node_driver_task.get_id())
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node_driver_task = self.state_manager.get_task(node_driver_task.get_id())
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Complete,
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result=node_driver_task.get_result())
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return
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elif task.action == hd_fields.OrchestratorAction.PrepareSite:
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driver = self.enabled_drivers['node']
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if driver is None:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Errored,
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result=hd_fields.ActionResult.Failure)
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return
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worked = failed = False
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site_network_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.CreateNetworkTemplate)
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self.logger.info("Starting node driver task %s to create network templates" % (site_network_task.get_id()))
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driver.execute_task(site_network_task.get_id())
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site_network_task = self.state_manager.get_task(site_network_task.get_id())
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if site_network_task.get_result() in [hd_fields.ActionResult.Success,
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hd_fields.ActionResult.PartialSuccess]:
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worked = True
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if site_network_task.get_result() in [hd_fields.ActionResult.Failure,
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hd_fields.ActionResult.PartialSuccess]:
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failed = True
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self.logger.info("Node driver task %s complete" % (site_network_task.get_id()))
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user_creds_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.ConfigureUserCredentials)
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self.logger.info("Starting node driver task %s to configure user credentials" % (user_creds_task.get_id()))
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driver.execute_task(user_creds_task.get_id())
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self.logger.info("Node driver task %s complete" % (site_network_task.get_id()))
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user_creds_task = self.state_manager.get_task(site_network_task.get_id())
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if user_creds_task.get_result() in [hd_fields.ActionResult.Success,
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hd_fields.ActionResult.PartialSuccess]:
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worked = True
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if user_creds_task.get_result() in [hd_fields.ActionResult.Failure,
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hd_fields.ActionResult.PartialSuccess]:
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failed = True
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if worked and failed:
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final_result = hd_fields.ActionResult.PartialSuccess
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elif worked:
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final_result = hd_fields.ActionResult.Success
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else:
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final_result = hd_fields.ActionResult.Failure
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Complete,
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result=final_result)
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return
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elif task.action == hd_fields.OrchestratorAction.VerifyNode:
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self.task_field_update(task_id, status=hd_fields.TaskStatus.Running)
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site_design = self.get_effective_site(design_id)
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node_filter = task.node_filter
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oob_type_partition = {}
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target_nodes = self.process_node_filter(node_filter, site_design)
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for n in target_nodes:
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if n.oob_type not in oob_type_partition.keys():
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oob_type_partition[n.oob_type] = []
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oob_type_partition[n.oob_type].append(n)
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result_detail = {'detail': []}
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worked = failed = False
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# TODO Need to multithread tasks for different OOB types
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for oob_type, oob_nodes in oob_type_partition.items():
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oob_driver = None
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for d in self.enabled_drivers['oob']:
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if d.oob_type_support(oob_type):
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oob_driver = d
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break
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if oob_driver is None:
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self.logger.warning("Node OOB type %s has no enabled driver." % oob_type)
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result_detail['detail'].append("Error: No oob driver configured for type %s" % oob_type)
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continue
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target_names = [x.get_name() for x in oob_nodes]
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task_scope = {'node_names' : target_names}
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oob_driver_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.InterrogateOob,
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task_scope=task_scope)
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self.logger.info("Starting task %s for node verification via OOB type %s" %
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(oob_driver_task.get_id(), oob_type))
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oob_driver.execute_task(oob_driver_task.get_id())
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oob_driver_task = self.state_manager.get_task(oob_driver_task.get_id())
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if oob_driver_task.get_result() in [hd_fields.ActionResult.Success,
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hd_fields.ActionResult.PartialSuccess]:
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worked = True
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if oob_driver_task.get_result() in [hd_fields.ActionResult.Failure,
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hd_fields.ActionResult.PartialSuccess]:
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failed = True
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final_result = None
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if worked and failed:
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final_result = hd_fields.ActionResult.PartialSuccess
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elif worked:
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final_result = hd_fields.ActionResult.Success
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else:
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final_result = hd_fields.ActionResult.Failure
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Complete,
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result=final_result,
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result_detail=result_detail)
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return
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elif task.action == hd_fields.OrchestratorAction.PrepareNode:
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failed = worked = False
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Running)
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# NOTE Should we attempt to interrogate the node via Node Driver to see if
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# it is in a deployed state before we start rebooting? Or do we just leverage
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# Drydock internal state via site build data (when implemented)?
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node_driver = self.enabled_drivers['node']
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if node_driver is None:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Errored,
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result=hd_fields.ActionResult.Failure,
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result_detail={'detail': 'Error: No node driver configured', 'retry': False})
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return
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site_design = self.get_effective_site(design_id)
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node_filter = task.node_filter
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target_nodes = self.process_node_filter(node_filter, site_design)
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oob_type_partition = {}
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for n in target_nodes:
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if n.oob_type not in oob_type_partition.keys():
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oob_type_partition[n.oob_type] = []
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oob_type_partition[n.oob_type].append(n)
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result_detail = {'detail': []}
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worked = failed = False
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# TODO Need to multithread tasks for different OOB types
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for oob_type, oob_nodes in oob_type_partition.items():
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oob_driver = None
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for d in self.enabled_drivers['oob']:
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if d.oob_type_support(oob_type):
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oob_driver = d
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break
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if oob_driver is None:
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self.logger.warning("Node OOB type %s has no enabled driver." % oob_type)
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result_detail['detail'].append("Error: No oob driver configured for type %s" % oob_type)
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continue
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target_names = [x.get_name() for x in oob_nodes]
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task_scope = {'node_names' : target_names}
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setboot_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.SetNodeBoot,
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task_scope=task_scope)
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self.logger.info("Starting OOB driver task %s to set PXE boot for OOB type %s" %
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(setboot_task.get_id(), oob_type))
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oob_driver.execute_task(setboot_task.get_id())
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self.logger.info("OOB driver task %s complete" % (setboot_task.get_id()))
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setboot_task = self.state_manager.get_task(setboot_task.get_id())
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if setboot_task.get_result() == hd_fields.ActionResult.Success:
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worked = True
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elif setboot_task.get_result() == hd_fields.ActionResult.PartialSuccess:
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worked = failed = True
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elif setboot_task.get_result() == hd_fields.ActionResult.Failure:
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failed = True
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cycle_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.PowerCycleNode,
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task_scope=task_scope)
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self.logger.info("Starting OOB driver task %s to power cycle nodes for OOB type %s" %
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(cycle_task.get_id(), oob_type))
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oob_driver.execute_task(cycle_task.get_id())
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self.logger.info("OOB driver task %s complete" % (cycle_task.get_id()))
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cycle_task = self.state_manager.get_task(cycle_task.get_id())
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if cycle_task.get_result() == hd_fields.ActionResult.Success:
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worked = True
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elif cycle_task.get_result() == hd_fields.ActionResult.PartialSuccess:
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worked = failed = True
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elif cycle_task.get_result() == hd_fields.ActionResult.Failure:
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failed = True
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# IdentifyNode success will take some time after PowerCycleNode finishes
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# Retry the operation a few times if it fails before considering it a final failure
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# Each attempt is a new task which might make the final task tree a bit confusing
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node_identify_attempts = 0
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max_attempts = cfg.CONF.timeouts.identify_node * (60 / cfg.CONF.poll_interval)
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while True:
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node_identify_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(),
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design_id=design_id,
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action=hd_fields.OrchestratorAction.IdentifyNode,
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task_scope=task_scope)
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self.logger.info("Starting node driver task %s to identify node - attempt %s" %
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(node_identify_task.get_id(), node_identify_attempts+1))
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node_driver.execute_task(node_identify_task.get_id())
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node_identify_attempts = node_identify_attempts + 1
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node_identify_task = self.state_manager.get_task(node_identify_task.get_id())
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if node_identify_task.get_result() == hd_fields.ActionResult.Success:
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worked = True
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break
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elif node_identify_task.get_result() in [hd_fields.ActionResult.PartialSuccess,
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hd_fields.ActionResult.Failure]:
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# TODO This threshold should be a configurable default and tunable by task API
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if node_identify_attempts > max_attempts:
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failed = True
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break
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time.sleep(cfg.CONF.poll_interval)
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# We can only commission nodes that were successfully identified in the provisioner
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if len(node_identify_task.result_detail['successful_nodes']) > 0:
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self.logger.info("Found %s successfully identified nodes, starting commissioning." %
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(len(node_identify_task.result_detail['successful_nodes'])))
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node_commission_task = self.create_task(tasks.DriverTask,
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parent_task_id=task.get_id(), design_id=design_id,
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action=hd_fields.OrchestratorAction.ConfigureHardware,
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task_scope={'node_names': node_identify_task.result_detail['successful_nodes']})
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self.logger.info("Starting node driver task %s to commission nodes." % (node_commission_task.get_id()))
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node_driver.execute_task(node_commission_task.get_id())
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node_commission_task = self.state_manager.get_task(node_commission_task.get_id())
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if node_commission_task.get_result() in [hd_fields.ActionResult.Success,
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hd_fields.ActionResult.PartialSuccess]:
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worked = True
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elif node_commission_task.get_result() in [hd_fields.ActionResult.Failure,
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hd_fields.ActionResult.PartialSuccess]:
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failed = True
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else:
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self.logger.warning("No nodes successfully identified, skipping commissioning subtask")
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final_result = None
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if worked and failed:
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final_result = hd_fields.ActionResult.PartialSuccess
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elif worked:
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final_result = hd_fields.ActionResult.Success
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else:
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final_result = hd_fields.ActionResult.Failure
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Complete,
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result=final_result)
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return
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elif task.action == hd_fields.OrchestratorAction.DeployNode:
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failed = worked = False
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Running)
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node_driver = self.enabled_drivers['node']
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if node_driver is None:
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self.task_field_update(task_id,
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status=hd_fields.TaskStatus.Errored,
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result=hd_fields.ActionResult.Failure,
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result_detail={'detail': 'Error: No node driver configured', 'retry': False})
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return
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site_design = self.get_effective_site(design_id)
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node_filter = task.node_filter
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target_nodes = self.process_node_filter(node_filter, site_design)
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target_names = [x.get_name() for x in target_nodes]
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task_scope = {'node_names' : target_names}
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node_networking_task = self.create_task(tasks.DriverTask,
|
|
parent_task_id=task.get_id(), design_id=design_id,
|
|
action=hd_fields.OrchestratorAction.ApplyNodeNetworking,
|
|
task_scope=task_scope)
|
|
|
|
self.logger.info("Starting node driver task %s to apply networking on nodes." % (node_networking_task.get_id()))
|
|
node_driver.execute_task(node_networking_task.get_id())
|
|
|
|
node_networking_task = self.state_manager.get_task(node_networking_task.get_id())
|
|
|
|
if node_networking_task.get_result() in [hd_fields.ActionResult.Success,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
worked = True
|
|
if node_networking_task.get_result() in [hd_fields.ActionResult.Failure,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
failed = True
|
|
|
|
|
|
if len(node_networking_task.result_detail['successful_nodes']) > 0:
|
|
self.logger.info("Found %s successfully networked nodes, configuring platform." %
|
|
(len(node_networking_task.result_detail['successful_nodes'])))
|
|
|
|
node_platform_task = self.create_task(tasks.DriverTask,
|
|
parent_task_id=task.get_id(), design_id=design_id,
|
|
action=hd_fields.OrchestratorAction.ApplyNodePlatform,
|
|
task_scope={'node_names': node_networking_task.result_detail['successful_nodes']})
|
|
self.logger.info("Starting node driver task %s to configure node platform." % (node_platform_task.get_id()))
|
|
|
|
node_driver.execute_task(node_platform_task.get_id())
|
|
|
|
node_platform_task = self.state_manager.get_task(node_platform_task.get_id())
|
|
|
|
if node_platform_task.get_result() in [hd_fields.ActionResult.Success,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
worked = True
|
|
elif node_platform_task.get_result() in [hd_fields.ActionResult.Failure,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
failed = True
|
|
|
|
|
|
if len(node_platform_task.result_detail['successful_nodes']) > 0:
|
|
self.logger.info("Configured platform on %s nodes, starting deployment." %
|
|
(len(node_platform_task.result_detail['successful_nodes'])))
|
|
node_deploy_task = self.create_task(tasks.DriverTask,
|
|
parent_task_id=task.get_id(), design_id=design_id,
|
|
action=hd_fields.OrchestratorAction.DeployNode,
|
|
task_scope={'node_names': node_platform_task.result_detail['successful_nodes']})
|
|
|
|
self.logger.info("Starting node driver task %s to deploy nodes." % (node_deploy_task.get_id()))
|
|
node_driver.execute_task(node_deploy_task.get_id())
|
|
|
|
node_deploy_task = self.state_manager.get_task(node_deploy_task.get_id())
|
|
|
|
if node_deploy_task.get_result() in [hd_fields.ActionResult.Success,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
worked = True
|
|
elif node_deploy_task.get_result() in [hd_fields.ActionResult.Failure,
|
|
hd_fields.ActionResult.PartialSuccess]:
|
|
failed = True
|
|
else:
|
|
self.logger.warning("Unable to configure platform on any nodes, skipping deploy subtask")
|
|
else:
|
|
self.logger.warning("No nodes successfully networked, skipping platform configuration subtask")
|
|
|
|
final_result = None
|
|
if worked and failed:
|
|
final_result = hd_fields.ActionResult.PartialSuccess
|
|
elif worked:
|
|
final_result = hd_fields.ActionResult.Success
|
|
else:
|
|
final_result = hd_fields.ActionResult.Failure
|
|
|
|
self.task_field_update(task_id,
|
|
status=hd_fields.TaskStatus.Complete,
|
|
result=final_result)
|
|
|
|
else:
|
|
raise errors.OrchestratorError("Action %s not supported"
|
|
% (task.action))
|
|
|
|
"""
|
|
terminate_task
|
|
|
|
Mark a task for termination and optionally propagate the termination
|
|
recursively to all subtasks
|
|
"""
|
|
def terminate_task(self, task_id, propagate=True):
|
|
task = self.state_manager.get_task(task_id)
|
|
|
|
if task is None:
|
|
raise errors.OrchestratorError("Could find task %s" % task_id)
|
|
else:
|
|
# Terminate initial task first to prevent add'l subtasks
|
|
|
|
self.task_field_update(task_id, terminate=True)
|
|
|
|
if propagate:
|
|
# Get subtasks list
|
|
subtasks = task.get_subtasks()
|
|
|
|
for st in subtasks:
|
|
self.terminate_task(st, propagate=True)
|
|
else:
|
|
return True
|
|
|
|
def create_task(self, task_class, **kwargs):
|
|
parent_task_id = kwargs.get('parent_task_id', None)
|
|
new_task = task_class(**kwargs)
|
|
self.state_manager.post_task(new_task)
|
|
|
|
if parent_task_id is not None:
|
|
self.task_subtask_add(parent_task_id, new_task.get_id())
|
|
|
|
return new_task
|
|
|
|
# Lock a task and make all field updates, then unlock it
|
|
def task_field_update(self, task_id, **kwargs):
|
|
lock_id = self.state_manager.lock_task(task_id)
|
|
if lock_id is not None:
|
|
task = self.state_manager.get_task(task_id)
|
|
|
|
for k,v in kwargs.items():
|
|
setattr(task, k, v)
|
|
|
|
self.state_manager.put_task(task, lock_id=lock_id)
|
|
self.state_manager.unlock_task(task_id, lock_id)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def task_subtask_add(self, task_id, subtask_id):
|
|
lock_id = self.state_manager.lock_task(task_id)
|
|
if lock_id is not None:
|
|
task = self.state_manager.get_task(task_id)
|
|
task.register_subtask(subtask_id)
|
|
self.state_manager.put_task(task, lock_id=lock_id)
|
|
self.state_manager.unlock_task(task_id, lock_id)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def compute_model_inheritance(self, site_design):
|
|
|
|
# For now the only thing that really incorporates inheritance is
|
|
# host profiles and baremetal nodes. So we'll just resolve it for
|
|
# the baremetal nodes which recursively resolves it for host profiles
|
|
# assigned to those nodes
|
|
|
|
for n in getattr(site_design, 'baremetal_nodes', []):
|
|
n.compile_applied_model(site_design)
|
|
|
|
return
|
|
"""
|
|
compute_model_inheritance - given a fully populated Site model,
|
|
compute the effecitve design by applying inheritance and references
|
|
|
|
return a Site model reflecting the effective design for the site
|
|
"""
|
|
|
|
def get_described_site(self, design_id):
|
|
site_design = self.state_manager.get_design(design_id)
|
|
|
|
return site_design
|
|
|
|
def get_effective_site(self, design_id):
|
|
site_design = self.get_described_site(design_id)
|
|
|
|
self.compute_model_inheritance(site_design)
|
|
|
|
return site_design
|
|
|
|
def process_node_filter(self, node_filter, site_design):
|
|
target_nodes = site_design.baremetal_nodes
|
|
|
|
if node_filter is None:
|
|
return target_nodes
|
|
|
|
node_names = node_filter.get('node_names', [])
|
|
node_racks = node_filter.get('rack_names', [])
|
|
node_tags = node_filter.get('node_tags', [])
|
|
|
|
if len(node_names) > 0:
|
|
target_nodes = [x
|
|
for x in target_nodes
|
|
if x.get_name() in node_names]
|
|
|
|
if len(node_racks) > 0:
|
|
target_nodes = [x
|
|
for x in target_nodes
|
|
if x.get_rack() in node_racks]
|
|
|
|
if len(node_tags) > 0:
|
|
target_nodes = [x
|
|
for x in target_nodes
|
|
for t in node_tags
|
|
if x.has_tag(t)]
|
|
|
|
return target_nodes
|