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Consolidate handler tracking (#49338)
* Consolidate handler tracking - Remove unused code. ci_complete - unit test fixes. ci_complete - Restore previous behavior of matching a single handler - when notifying a host for a handler, return True if it was added, False otherwise, to reduce copied logic - rename funcitons for clarity. ci_complete - Remove handler logic for static includes which was disabled previously
This commit is contained in:
Matt Martz
Brian Coca
parent
62b2a08cfb
commit
2a469fd959
7 changed files with 41 additions and 133 deletions
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@ -44,7 +44,6 @@ from ansible.module_utils.connection import Connection, ConnectionError
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from ansible.playbook.helpers import load_list_of_blocks
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from ansible.playbook.included_file import IncludedFile
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from ansible.playbook.task_include import TaskInclude
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from ansible.playbook.role_include import IncludeRole
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from ansible.plugins.loader import action_loader, connection_loader, filter_loader, lookup_loader, module_loader, test_loader
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from ansible.template import Templar
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from ansible.utils.display import Display
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@ -168,8 +167,6 @@ class StrategyBase:
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self._tqm = tqm
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self._inventory = tqm.get_inventory()
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self._workers = tqm.get_workers()
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self._notified_handlers = tqm._notified_handlers
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self._listening_handlers = tqm._listening_handlers
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self._variable_manager = tqm.get_variable_manager()
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self._loader = tqm.get_loader()
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self._final_q = tqm._final_q
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@ -372,19 +369,21 @@ class StrategyBase:
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for handler_block in reversed(handler_blocks):
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for handler_task in handler_block.block:
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if handler_task.name:
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handler_vars = self._variable_manager.get_vars(play=iterator._play, task=handler_task)
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templar = Templar(loader=self._loader, variables=handler_vars)
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if not handler_task.cached_name:
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handler_vars = self._variable_manager.get_vars(play=iterator._play, task=handler_task)
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templar = Templar(loader=self._loader, variables=handler_vars)
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handler_task.name = templar.template(handler_task.name)
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handler_task.cached_name = True
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try:
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# first we check with the full result of get_name(), which may
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# include the role name (if the handler is from a role). If that
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# is not found, we resort to the simple name field, which doesn't
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# have anything extra added to it.
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target_handler_name = templar.template(handler_task.name)
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if target_handler_name == handler_name:
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if handler_task.name == handler_name:
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return handler_task
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else:
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target_handler_name = templar.template(handler_task.get_name())
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if target_handler_name == handler_name:
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if handler_task.get_name() == handler_name:
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return handler_task
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except (UndefinedError, AnsibleUndefinedVariable):
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# We skip this handler due to the fact that it may be using
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@ -394,33 +393,6 @@ class StrategyBase:
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continue
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return None
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def search_handler_blocks_by_uuid(handler_uuid, handler_blocks):
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# iterate in reversed order since last handler loaded with the same name wins
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for handler_block in reversed(handler_blocks):
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for handler_task in handler_block.block:
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if handler_uuid == handler_task._uuid:
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return handler_task
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return None
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def parent_handler_match(target_handler, handler_name):
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if target_handler:
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if isinstance(target_handler, (TaskInclude, IncludeRole)) and not getattr(target_handler, 'statically_loaded', True):
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try:
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handler_vars = self._variable_manager.get_vars(play=iterator._play, task=target_handler)
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templar = Templar(loader=self._loader, variables=handler_vars)
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target_handler_name = templar.template(target_handler.name)
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if target_handler_name == handler_name:
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return True
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else:
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target_handler_name = templar.template(target_handler.get_name())
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if target_handler_name == handler_name:
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return True
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except (UndefinedError, AnsibleUndefinedVariable):
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pass
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return parent_handler_match(target_handler._parent, handler_name)
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else:
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return False
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cur_pass = 0
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while True:
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try:
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@ -548,31 +520,18 @@ class StrategyBase:
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target_handler = search_handler_blocks_by_name(handler_name, iterator._play.handlers)
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if target_handler is not None:
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found = True
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if target_handler._uuid not in self._notified_handlers:
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self._notified_handlers[target_handler._uuid] = []
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if original_host not in self._notified_handlers[target_handler._uuid]:
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self._notified_handlers[target_handler._uuid].append(original_host)
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if target_handler.notify_host(original_host):
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self._tqm.send_callback('v2_playbook_on_notify', target_handler, original_host)
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else:
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# As there may be more than one handler with the notified name as the
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# parent, so we just keep track of whether or not we found one at all
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for target_handler_uuid in self._notified_handlers:
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target_handler = search_handler_blocks_by_uuid(target_handler_uuid, iterator._play.handlers)
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if target_handler and parent_handler_match(target_handler, handler_name):
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found = True
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if original_host not in self._notified_handlers[target_handler._uuid]:
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self._notified_handlers[target_handler._uuid].append(original_host)
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self._tqm.send_callback('v2_playbook_on_notify', target_handler, original_host)
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if handler_name in self._listening_handlers:
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for listening_handler_uuid in self._listening_handlers[handler_name]:
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listening_handler = search_handler_blocks_by_uuid(listening_handler_uuid, iterator._play.handlers)
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if listening_handler is not None:
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found = True
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else:
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for listening_handler_block in iterator._play.handlers:
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for listening_handler in listening_handler_block.block:
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listeners = getattr(listening_handler, 'listen', []) or []
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if handler_name not in listeners:
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continue
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if original_host not in self._notified_handlers[listening_handler._uuid]:
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self._notified_handlers[listening_handler._uuid].append(original_host)
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else:
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found = True
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if listening_handler.notify_host(original_host):
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self._tqm.send_callback('v2_playbook_on_notify', listening_handler, original_host)
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# and if none were found, then we raise an error
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@ -877,14 +836,9 @@ class StrategyBase:
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# but this may take some work in the iterator and gets tricky when
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# we consider the ability of meta tasks to flush handlers
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for handler in handler_block.block:
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if handler._uuid in self._notified_handlers and len(self._notified_handlers[handler._uuid]):
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if handler.notified_hosts:
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handler_vars = self._variable_manager.get_vars(play=iterator._play, task=handler)
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templar = Templar(loader=self._loader, variables=handler_vars)
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handler_name = handler.get_name()
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try:
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handler_name = templar.template(handler_name)
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except (UndefinedError, AnsibleUndefinedVariable):
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pass
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result = self._do_handler_run(handler, handler_name, iterator=iterator, play_context=play_context)
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if not result:
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break
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@ -898,7 +852,7 @@ class StrategyBase:
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# result = False
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# break
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if notified_hosts is None:
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notified_hosts = self._notified_handlers[handler._uuid]
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notified_hosts = handler.notified_hosts[:]
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notified_hosts = self._filter_notified_hosts(notified_hosts)
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@ -920,7 +874,7 @@ class StrategyBase:
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host_results = []
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for host in notified_hosts:
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if not handler.has_triggered(host) and (not iterator.is_failed(host) or play_context.force_handlers):
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if not iterator.is_failed(host) or play_context.force_handlers:
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task_vars = self._variable_manager.get_vars(play=iterator._play, host=host, task=handler)
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self.add_tqm_variables(task_vars, play=iterator._play)
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self._queue_task(host, handler, task_vars, play_context)
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@ -953,7 +907,7 @@ class StrategyBase:
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for task in block.block:
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task_name = task.get_name()
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display.debug("adding task '%s' included in handler '%s'" % (task_name, handler_name))
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self._notified_handlers[task._uuid] = included_file._hosts[:]
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task.notified_hosts = included_file._hosts[:]
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result = self._do_handler_run(
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handler=task,
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handler_name=task_name,
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@ -971,8 +925,8 @@ class StrategyBase:
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continue
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# remove hosts from notification list
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self._notified_handlers[handler._uuid] = [
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h for h in self._notified_handlers[handler._uuid]
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handler.notified_hosts = [
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h for h in handler.notified_hosts
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if h not in notified_hosts]
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display.debug("done running handlers, result is: %s" % result)
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return result
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