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Don't immediately return failed for any_errors_fatal tasks

Browse Source 
Instead of immediately returning a failed code (indicating a break in
the play execution), we internally 'or' that failure code with the result
(now an integer flag instead of a boolean) so that we can properly handle
the rescue/always portions of blocks and still remember that the break
condition was hit.

Fixes #16937
pull/17077/head
James Cammarata 8 years ago
parent b44eb402bd
commit c669a381d1
5 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File

2
lib/ansible/executor/playbook_executor.py
Unescape Escape View File

@ -147,7 +147,7 @@ class PlaybookExecutor:
result = self._tqm.run(play=play)
# break the play if the result equals the special return code
if result == self._tqm.RUN_FAILED_BREAK_PLAY:
if result & self._tqm.RUN_FAILED_BREAK_PLAY != 0:
result = self._tqm.RUN_FAILED_HOSTS
break_play = True

4
lib/ansible/executor/task_queue_manager.py
Unescape Escape View File

@ -61,8 +61,8 @@ class TaskQueueManager:
RUN_OK = 0
RUN_ERROR = 1
RUN_FAILED_HOSTS = 2
RUN_UNREACHABLE_HOSTS = 3
RUN_FAILED_BREAK_PLAY = 4
RUN_UNREACHABLE_HOSTS = 4
RUN_FAILED_BREAK_PLAY = 8
RUN_UNKNOWN_ERROR = 255
def __init__(self, inventory, variable_manager, loader, options, passwords, stdout_callback=None, run_additional_callbacks=True, run_tree=False):

20
lib/ansible/plugins/strategy/__init__.py
Unescape Escape View File

@ -119,14 +119,18 @@ class StrategyBase:
# outstanding tasks still in queue
self._blocked_hosts = dict()
def run(self, iterator, play_context, result=True):
def run(self, iterator, play_context, result=0):
# save the failed/unreachable hosts, as the run_handlers()
# method will clear that information during its execution
failed_hosts = iterator.get_failed_hosts()
unreachable_hosts = self._tqm._unreachable_hosts.keys()
display.debug("running handlers")
result &= self.run_handlers(iterator, play_context)
handler_result = self.run_handlers(iterator, play_context)
if isinstance(handler_result, bool) and not handler_result:
result |= self._tqm.RUN_ERROR
elif not handler_result:
result |= handler_result
# now update with the hosts (if any) that failed or were
# unreachable during the handler execution phase
@ -140,8 +144,6 @@ class StrategyBase:
return self._tqm.RUN_UNREACHABLE_HOSTS
elif len(failed_hosts) > 0:
return self._tqm.RUN_FAILED_HOSTS
elif isinstance(result, bool) and not result:
return self._tqm.RUN_ERROR
else:
return self._tqm.RUN_OK
@ -296,7 +298,11 @@ class StrategyBase:
display.debug("marking %s as failed" % original_host.name)
if original_task.run_once:
# if we're using run_once, we have to fail every host here
[iterator.mark_host_failed(h) for h in self._inventory.get_hosts(iterator._play.hosts) if h.name not in self._tqm._unreachable_hosts]
for h in self._inventory.get_hosts(iterator._play.hosts):
if h.name not in self._tqm._unreachable_hosts:
state, _ = iterator.get_next_task_for_host(h, peek=True)
iterator.mark_host_failed(h)
state, new_task = iterator.get_next_task_for_host(h, peek=True)
else:
iterator.mark_host_failed(original_host)
@ -631,7 +637,7 @@ class StrategyBase:
Runs handlers on those hosts which have been notified.
'''
result = True
result = self._tqm.RUN_OK
for handler_block in iterator._play.handlers:
# FIXME: handlers need to support the rescue/always portions of blocks too,
@ -671,7 +677,7 @@ class StrategyBase:
host_results = []
for host in notified_hosts:
if not handler.has_triggered(host) and (host.name not in self._tqm._failed_hosts or play_context.force_handlers):
if not handler.has_triggered(host) and (not iterator.is_failed(host) or play_context.force_handlers):
task_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=handler)
self.add_tqm_variables(task_vars, play=iterator._play)
self._queue_task(host, handler, task_vars, play_context)

20
lib/ansible/plugins/strategy/linear.py
Unescape Escape View File

@ -157,7 +157,7 @@ class StrategyModule(StrategyBase):
'''
# iteratate over each task, while there is one left to run
result = True
result = self._tqm.RUN_OK
work_to_do = True
while work_to_do and not self._tqm._terminated:
@ -269,12 +269,6 @@ class StrategyModule(StrategyBase):
results += self._wait_on_pending_results(iterator)
host_results.extend(results)
if not work_to_do and len(iterator.get_failed_hosts()) > 0:
display.debug("out of hosts to run on")
self._tqm.send_callback('v2_playbook_on_no_hosts_remaining')
result = self._tqm.RUN_ERROR
break
try:
included_files = IncludedFile.process_include_results(
host_results,
@ -285,6 +279,7 @@ class StrategyModule(StrategyBase):
variable_manager=self._variable_manager
)
except AnsibleError as e:
# this is a fatal error, so we abort here regardless of block state
return self._tqm.RUN_ERROR
include_failure = False
@ -360,13 +355,10 @@ class StrategyModule(StrategyBase):
# if any_errors_fatal and we had an error, mark all hosts as failed
if any_errors_fatal and (len(failed_hosts) > 0 or len(unreachable_hosts) > 0):
for host in hosts_left:
# don't double-mark hosts, or the iterator will potentially
# fail them out of the rescue/always states
if host.name not in failed_hosts:
(s, _) = iterator.get_next_task_for_host(host, peek=True)
if s.run_state != iterator.ITERATING_RESCUE:
self._tqm._failed_hosts[host.name] = True
iterator.mark_host_failed(host)
self._tqm.send_callback('v2_playbook_on_no_hosts_remaining')
return self._tqm.RUN_FAILED_BREAK_PLAY
result |= self._tqm.RUN_FAILED_BREAK_PLAY
display.debug("done checking for any_errors_fatal")
display.debug("checking for max_fail_percentage")
@ -381,7 +373,7 @@ class StrategyModule(StrategyBase):
self._tqm._failed_hosts[host.name] = True
iterator.mark_host_failed(host)
self._tqm.send_callback('v2_playbook_on_no_hosts_remaining')
return self._tqm.RUN_FAILED_BREAK_PLAY
result |= self._tqm.RUN_FAILED_BREAK_PLAY
display.debug("done checking for max_fail_percentage")
except (IOError, EOFError) as e:

5
test/units/plugins/strategies/test_strategy_base.py
Unescape Escape View File

@ -60,6 +60,9 @@ class TestStrategyBase(unittest.TestCase):
mock_tqm._listening_handlers = {}
mock_tqm.send_callback.return_value = None
for attr in ('RUN_OK', 'RUN_ERROR', 'RUN_FAILED_HOSTS', 'RUN_UNREACHABLE_HOSTS'):
setattr(mock_tqm, attr, getattr(TaskQueueManager, attr))
mock_iterator = MagicMock()
mock_iterator._play = MagicMock()
mock_iterator._play.handlers = []
@ -77,7 +80,7 @@ class TestStrategyBase(unittest.TestCase):
mock_host.name = 'host1'
self.assertEqual(strategy_base.run(iterator=mock_iterator, play_context=mock_play_context), mock_tqm.RUN_OK)
self.assertEqual(strategy_base.run(iterator=mock_iterator, play_context=mock_play_context, result=False), mock_tqm.RUN_ERROR)
self.assertEqual(strategy_base.run(iterator=mock_iterator, play_context=mock_play_context, result=TaskQueueManager.RUN_ERROR), mock_tqm.RUN_ERROR)
mock_tqm._failed_hosts = dict(host1=True)
mock_iterator.get_failed_hosts.return_value = [mock_host]
self.assertEqual(strategy_base.run(iterator=mock_iterator, play_context=mock_play_context, result=False), mock_tqm.RUN_FAILED_HOSTS)

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