issue callbacks per item and retry fails

- now workers passes queue to task_executor so it can send back events per item and on retry attempt
- updated result class to pass along events to strategy
- base strategy updated to forward new events to callback
- callbacks now remove 'items' on final result but process them directly when invoked per item
- new callback method to deal with retry attempt messages (also now obeys nolog)
- updated tests to match new signature of task_executor

fixes #14558
fixes #14072

lib/ansible/executor/process/result.py

@@ -104,6 +104,19 @@ class ResultProcess(multiprocessing.Process):
                     time.sleep(0.0001)
                     continue
 
+                # send callbacks for 'non final' results
+                if '_ansible_retry' in result._result:
+                    self._send_result(('v2_playbook_retry', result))
+                    continue
+                elif '_ansible_item_result' in result._result:
+                    if result.is_failed() or result.is_unreachable():
+                        self._send_result(('v2_playbook_item_on_failed', result))
+                    elif result.is_skipped():
+                        self._send_result(('v2_playbook_item_on_skipped', result))
+                    else:
+                        self._send_result(('v2_playbook_item_on_ok', result))
+                    continue
+
                 clean_copy = strip_internal_keys(result._result)
                 if 'invocation' in clean_copy:
                     del clean_copy['invocation']

lib/ansible/executor/process/worker.py

@@ -113,6 +113,7 @@ class WorkerProcess(multiprocessing.Process):
                 self._new_stdin,
                 self._loader,
                 self._shared_loader_obj,
+                self._rslt_q
             ).run()
 
             debug("done running TaskExecutor() for %s/%s" % (self._host, self._task))

lib/ansible/executor/task_executor.py

@@ -30,6 +30,7 @@ from ansible.compat.six import iteritems, string_types
 
 from ansible import constants as C
 from ansible.errors import AnsibleError, AnsibleParserError, AnsibleUndefinedVariable, AnsibleConnectionFailure
+from ansible.executor.task_result import TaskResult
 from ansible.playbook.conditional import Conditional
 from ansible.playbook.task import Task
 from ansible.template import Templar
@@ -60,7 +61,7 @@ class TaskExecutor:
     # the module
     SQUASH_ACTIONS = frozenset(C.DEFAULT_SQUASH_ACTIONS)
 
-    def __init__(self, host, task, job_vars, play_context, new_stdin, loader, shared_loader_obj):
+    def __init__(self, host, task, job_vars, play_context, new_stdin, loader, shared_loader_obj, rslt_q):
         self._host              = host
         self._task              = task
         self._job_vars          = job_vars
@@ -69,6 +70,7 @@ class TaskExecutor:
         self._loader            = loader
         self._shared_loader_obj = shared_loader_obj
         self._connection        = None
+        self._rslt_q            = rslt_q
 
     def run(self):
         '''
@@ -242,7 +244,9 @@ class TaskExecutor:
             # now update the result with the item info, and append the result
             # to the list of results
             res['item'] = item
-            #TODO: send item results to callback here, instead of all at the end
+            res['_ansible_item_result'] = True
+
+            self._rslt_q.put(TaskResult(self._host, self._task, res), block=False)
             results.append(res)
 
         return results
@@ -416,6 +420,9 @@ class TaskExecutor:
                 return dict(unreachable=True, msg=to_unicode(e))
             display.debug("handler run complete")
 
+            # preserve no log
+            result["_ansible_no_log"] = self._play_context.no_log
+
             # update the local copy of vars with the registered value, if specified,
             # or any facts which may have been generated by the module execution
             if self._task.register:
@@ -465,15 +472,17 @@ class TaskExecutor:
                 _evaluate_failed_when_result(result)
 
             if attempt < retries - 1:
-                if retries > 1:
-                    result['attempts'] = attempt + 1
                 cond = Conditional(loader=self._loader)
                 cond.when = [ self._task.until ]
                 if cond.evaluate_conditional(templar, vars_copy):
                     break
-
+                else:
                     # no conditional check, or it failed, so sleep for the specified time
-                display.display("FAILED - RETRYING: %s (%d retries left). Result was: %s" % (self._task, retries-(attempt+1), result), color=C.COLOR_DEBUG)
+                    result['attempts'] = attempt + 1
+                    result['retries'] = retries
+                    result['_ansible_retry'] = True
+                    display.debug('Retrying task, attempt %d of %d' % (attempt + 1, retries))
+                    self._rslt_q.put(TaskResult(self._host, self._task, result), block=False)
                     time.sleep(delay)
         else:
             if retries > 1:
@@ -506,9 +515,6 @@ class TaskExecutor:
             for k in ('ansible_host', ):
                 result["_ansible_delegated_vars"][k] = delegated_vars.get(k)
 
-        # preserve no_log setting
-        result["_ansible_no_log"] = self._play_context.no_log
-
         # and return
         display.debug("attempt loop complete, returning result")
         return result

lib/ansible/plugins/callback/__init__.py

@@ -172,16 +172,8 @@ class CallbackBase:
         return item
 
     def _process_items(self, result):
-        for res in result._result['results']:
+        # just remove them as now they get handled by individual callbacks
-            newres = self._copy_result_exclude(result, ['_result'])
+        del result._result['results']
-            res['item'] = self._get_item(res)
-            newres._result = res
-            if 'failed' in res and res['failed']:
-                self.v2_playbook_item_on_failed(newres)
-            elif 'skipped' in res and res['skipped']:
-                self.v2_playbook_item_on_skipped(newres)
-            else:
-                self.v2_playbook_item_on_ok(newres)
 
     def _clean_results(self, result, task_name):
         if 'changed' in result and task_name in ['debug']:
@@ -346,15 +338,6 @@ class CallbackBase:
         if 'diff' in result._result:
             self.on_file_diff(host, result._result['diff'])
 
-    def v2_playbook_on_item_ok(self, result):
-        pass # no v1
-
-    def v2_playbook_on_item_failed(self, result):
-        pass # no v1
-
-    def v2_playbook_on_item_skipped(self, result):
-        pass # no v1
-
     def v2_playbook_on_include(self, included_file):
         pass #no v1 correspondance
 
@@ -366,3 +349,7 @@ class CallbackBase:
 
     def v2_playbook_item_on_skipped(self, result):
         pass
+
+    def v2_playbook_retry(self, result):
+        pass
+

lib/ansible/plugins/callback/default.py

@@ -51,6 +51,7 @@ class CallbackModule(CallbackBase):
 
         if result._task.loop and 'results' in result._result:
             self._process_items(result)
+
         else:
             if delegated_vars:
                 self._display.display("fatal: [%s -> %s]: FAILED! => %s" % (result._host.get_name(), delegated_vars['ansible_host'], self._dump_results(result._result)), color=C.COLOR_ERROR)
@@ -159,24 +160,22 @@ class CallbackModule(CallbackBase):
                 self._display.display(diff)
 
     def v2_playbook_item_on_ok(self, result):
-
         delegated_vars = result._result.get('_ansible_delegated_vars', None)
         if result._task.action == 'include':
             return
         elif result._result.get('changed', False):
-            if delegated_vars:
+            msg = 'changed'
-                msg = "changed: [%s -> %s]" % (result._host.get_name(), delegated_vars['ansible_host'])
-            else:
-                msg = "changed: [%s]" % result._host.get_name()
             color = C.COLOR_CHANGED
         else:
-            if delegated_vars:
+            msg = 'ok'
-                msg = "ok: [%s -> %s]" % (result._host.get_name(), delegated_vars['ansible_host'])
-            else:
-                msg = "ok: [%s]" % result._host.get_name()
             color = C.COLOR_OK
 
-        msg += " => (item=%s)" % (result._result['item'],)
+        if delegated_vars:
+            msg += ": [%s -> %s]" % (result._host.get_name(), delegated_vars['ansible_host'])
+        else:
+            msg += ": [%s]" % result._host.get_name()
+
+        msg += " => (item=%s)" % (self._get_item(result._result))
 
         if (self._display.verbosity > 0 or '_ansible_verbose_always' in result._result) and not '_ansible_verbose_override' in result._result:
             msg += " => %s" % self._dump_results(result._result)
@@ -197,15 +196,17 @@ class CallbackModule(CallbackBase):
             # finally, remove the exception from the result so it's not shown every time
             del result._result['exception']
 
+        msg = "failed: "
         if delegated_vars:
-            self._display.display("failed: [%s -> %s] => (item=%s) => %s" % (result._host.get_name(), delegated_vars['ansible_host'], result._result['item'], self._dump_results(result._result)), color=C.COLOR_ERROR)
+            msg += "[%s -> %s]" % (result._host.get_name(), delegated_vars['ansible_host'])
         else:
-            self._display.display("failed: [%s] => (item=%s) => %s" % (result._host.get_name(), result._result['item'], self._dump_results(result._result)), color=C.COLOR_ERROR)
+            msg += "[%s]" % (result._host.get_name())
 
+        self._display.display(msg + " (item=%s) => %s" % (self._get_item(result._result), self._dump_results(result._result)), color=C.COLOR_ERROR)
         self._handle_warnings(result._result)
 
     def v2_playbook_item_on_skipped(self, result):
-        msg = "skipping: [%s] => (item=%s) " % (result._host.get_name(), result._result['item'])
+        msg = "skipping: [%s] => (item=%s) " % (result._host.get_name(), self._get_item(result._result))
         if (self._display.verbosity > 0 or '_ansible_verbose_always' in result._result) and not '_ansible_verbose_override' in result._result:
             msg += " => %s" % self._dump_results(result._result)
         self._display.display(msg, color=C.COLOR_SKIP)
@@ -254,3 +255,9 @@ class CallbackModule(CallbackBase):
                     val =  getattr(self._options,option)
                     if val:
                         self._display.vvvv('%s: %s' % (option,val))
+
+    def v2_playbook_retry(self, result):
+        msg = "FAILED - RETRYING: %s (%d retries left)." % (result._task, result._result['retries'] - result._result['attempts'])
+        if (self._display.verbosity > 2 or '_ansible_verbose_always' in result._result) and not '_ansible_verbose_override' in result._result:
+            msg += "Result was: %s" % self._dump_results(result._result)
+        self._display.display(msg, color=C.COLOR_DEBUG)

lib/ansible/plugins/strategy/__init__.py

@@ -329,7 +329,8 @@ class StrategyBase:
                                 self._variable_manager.set_nonpersistent_facts(target_host, facts)
                             else:
                                 self._variable_manager.set_host_facts(target_host, facts)
-
+                elif result[0].startswith('v2_playbook_item') or result[0] == 'v2_playbook_retry':
+                    self._tqm.send_callback(result[0], result[1])
                 else:
                     raise AnsibleError("unknown result message received: %s" % result[0])
 

test/units/executor/test_task_executor.py

@@ -45,6 +45,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_shared_loader = MagicMock()
         new_stdin = None
         job_vars = dict()
+        mock_queue = MagicMock()
         te = TaskExecutor(
             host = mock_host,
             task = mock_task,
@@ -53,6 +54,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = mock_shared_loader,
+            rslt_q = mock_queue,
         )
 
     def test_task_executor_run(self):
@@ -66,6 +68,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_play_context = MagicMock()
 
         mock_shared_loader = MagicMock()
+        mock_queue = MagicMock()
 
         new_stdin = None
         job_vars = dict()
@@ -78,6 +81,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = mock_shared_loader,
+            rslt_q = mock_queue,
         )
 
         te._get_loop_items = MagicMock(return_value=None)
@@ -111,6 +115,7 @@ class TestTaskExecutor(unittest.TestCase):
 
         new_stdin = None
         job_vars = dict()
+        mock_queue = MagicMock()
 
         te = TaskExecutor(
             host = mock_host,
@@ -120,6 +125,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = mock_shared_loader,
+            rslt_q = mock_queue,
         )
 
         items = te._get_loop_items()
@@ -142,6 +148,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_play_context = MagicMock()
 
         mock_shared_loader = MagicMock()
+        mock_queue = MagicMock()
 
         new_stdin = None
         job_vars = dict()
@@ -154,6 +161,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = mock_shared_loader,
+            rslt_q = mock_queue,
         )
 
         def _execute(variables):
@@ -184,6 +192,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_play_context = MagicMock()
 
         mock_shared_loader = None
+        mock_queue = MagicMock()
 
         new_stdin = None
         job_vars = dict(pkg_mgr='yum')
@@ -196,6 +205,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = mock_shared_loader,
+            rslt_q = mock_queue,
         )
 
         #
@@ -279,6 +289,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_connection._connect.return_value = None
 
         mock_action = MagicMock()
+        mock_queue = MagicMock()
 
         shared_loader = None
         new_stdin = None
@@ -292,6 +303,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = shared_loader,
+            rslt_q = mock_queue,
         )
 
         te._get_connection = MagicMock(return_value=mock_connection)
@@ -330,6 +342,7 @@ class TestTaskExecutor(unittest.TestCase):
         mock_connection = MagicMock()
 
         mock_action = MagicMock()
+        mock_queue = MagicMock()
 
         shared_loader = MagicMock()
         shared_loader.action_loader = action_loader
@@ -345,6 +358,7 @@ class TestTaskExecutor(unittest.TestCase):
             new_stdin = new_stdin,
             loader = fake_loader,
             shared_loader_obj = shared_loader,
+            rslt_q = mock_queue,
         )
 
         te._connection = MagicMock()