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Don't use the task for a cache, return a special cache var (#47243)

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* Don't use task to cache loop results, use hostvars. Fixes #47207

* Avoid a race condition, supply _ansible_loop_cache through get_vars directly

* Add tests

* Add changelog fragment

* Remove unnecessary copy

* Remove unnecessary host from _get_delegated_vars signature
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Matt Martz 2018-10-18 15:25:43 -05:00 • committed by GitHub
parent 9e2c02455a
commit 77d32b8f57
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 63 additions and 10 deletions
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7
lib/ansible/executor/task_executor.py
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@ -210,7 +210,12 @@ class TaskExecutor:
templar = Templar(loader=self._loader, shared_loader_obj=self._shared_loader_obj, variables=self._job_vars)
items = None
if self._task.loop_with:
loop_cache = self._job_vars.get('_ansible_loop_cache')
if loop_cache is not None:
# _ansible_loop_cache may be set in `get_vars` when calculating `delegate_to`
# to avoid reprocessing the loop
items = loop_cache
elif self._task.loop_with:
if self._task.loop_with in self._shared_loader_obj.lookup_loader:
fail = True
if self._task.loop_with == 'first_found':