Since we now use the PlayIterator to carry forward failures from previous
play executions, in the event that some hosts which had previously failed
are not in the current inventory we now create a stub state instead of
raising an error.
Previously the changed code was necessary, however it is now problematic
as we've started using the is_failed() method in other places in the code.
Additional changes at the strategy layer should make this safe to remove
now.
Fixes#15625
* Don't filter hosts remaining based on their failed state. Instead rely
on the PlayIterator to return None/ITERATING_COMPLETE when the host is
failed.
* In the free strategy, make sure we wait outside the host loop for all
pending results to be processed.
* Use the internal _set_failed_state() instead of manually setting things
when a failed child state is hit
Fixes#15623
In `lib/ansible/executor/play_iterator.py`, ansible sets a host's
`_gathered_facts` property to `True` without checking to see if there
are any tasks to be executed. In the event that the entire play is
skipped, `_gathered_facts` will be `True` even though the `setup`
module was never run.
This patch modifies the logic to only set `_gathered_facts` to `True`
when there are tasks to execute.
Closes#15744.
Previously we were first checking the fail/run state of the child
state for tasks/rescue/always portions of the block. Instead we are now
always recursively iterating over the child state and then evaluating
whether the child state is failed or complete before changing the failed/
run state within the current block.
Fixes#14324
* Unit tests exposed a problem where nested blocks did not correctly
hit rescue/always portions of parent blocks
* Cleaned up logic in PlayIterator
* Unfortunately fixing the above exposed a potential problem in the
block integration tests, where a failure in an "always" section may
always lead to a failed state and the termination of execution
beyond that point, so certain parts of the block integration test
were disabled.
* Make sure dep chains are checked recursively for nested blocks
* Fixing iterator is_failed() check to make sure we're not in a
rescue block before returning True
* Use is_failed() to test whether a host should be added to the TQM
failed_hosts list
* Use is_failed() when compiling the list of hosts left to iterate
over in both the linear and free strategies
Fixes#14222
* Fixed a bug in PlayIterator when ITERATING_ALWAYS, where the block
was advanced but the incorrect data structure elements were cleared
* Cleaned up the logic of is_failed() in PlayIterator
* Fixed a bug in the free strategy which had not been updated to use
the base strategy _execute_meta() method
* Stopped strategies from using is_failed() to determine if tasks should
still be fetched for a host
Fixes#14040
The dep chain for roles created during the compile step had bugs, in
which the dep chain was overwriten and the original tasks in the role
were not assigned a dep chain. This lead to problems in determining
whether roles had already run when in a "diamond" structure, and in
some cases roles were not correctly getting variables from parents.
Fixes#14046
* Added additional methods to the iterator code to assess host failures
while also taking into account the block rescue/always states
* Fixed bugs in the free strategy, where results were not always being
processed after being collected
* Added some prettier printing to the state output from iterator
Fixes#13699
Because the fail_state is potentially non-zero in these block sections,
the prior logic led to included tasks not being inserted at all.
Related issue: #13605
* Properly mark hosts with failures in includes as failed
* Don't send callbacks until we're sure we're done, and also fix how
we increment stats so failures don't show up as ok's
* Fix a bug in the include file logic where a failed include could lead
to an infinite loop in the task iteration logic
Fixes#12933
* When iterating over a child state, a failure should be propagated
up so parent blocks don't continue iterating
* Make sure a child state exists before trying to search it
Fixes#12210
Replace .iteritems() with six.iteritems() everywhere except in
module_utils (because there's no 'six' on the remote host). And except
in lib/ansible/galaxy/data/metadata_template.j2, because I'm not sure
six is available there.
* added pattern matching to match v1 functionality
* check the task name, not the task+role name for matches
* make sure the input is unicode
Fixes#11692
Also making PlayContext a child class of the Playbook Base class,
which gives it access to all of the FieldAttribute code to ensure
field values are correctly typed after post_validation
Fixes#11381
There was a confusion between the valid values for defaults.gathering
(explicit/implicit/smart) and a play's gather_facts setting (boolean),
which resulted in gathering=explicit being ignored.
