removed bad iteration from execute meta (#19958)

* removed bad iteration from execute meta

most of the tasks should not be iterated over, others needed to include unreachable hosts
fixes #19673

* corrected host var

lib/ansible/plugins/strategy/__init__.py

@@ -854,7 +854,7 @@ class StrategyBase:
 
         return ret
 
-    def _execute_meta(self, task, play_context, iterator, target_host=None):
+    def _execute_meta(self, task, play_context, iterator, target_host):
 
         # meta tasks store their args in the _raw_params field of args,
         # since they do not use k=v pairs, so get that
@@ -865,52 +865,52 @@ class StrategyBase:
         #   on a meta task that doesn't support them
 
         def _evaluate_conditional(h):
-            all_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=host, task=task)
+            all_vars = self._variable_manager.get_vars(loader=self._loader, play=iterator._play, host=h, task=task)
             templar = Templar(loader=self._loader, variables=all_vars)
             return task.evaluate_conditional(templar, all_vars)
 
-        if target_host:
-            host_list = [target_host]
-        else:
-            host_list = [host for host in self._inventory.get_hosts(iterator._play.hosts) if host.name not in self._tqm._unreachable_hosts]
-
-        results = []
-        for host in host_list:
-            result = None
-            if meta_action == 'noop':
-                # FIXME: issue a callback for the noop here?
-                result = TaskResult(host, task, dict(changed=False, msg="noop"))
-            elif meta_action == 'flush_handlers':
-                self.run_handlers(iterator, play_context)
-            elif meta_action == 'refresh_inventory':
-                self._inventory.refresh_inventory()
-                result = TaskResult(host, task, dict(changed=False, msg="inventory successfully refreshed"))
-            elif meta_action == 'clear_facts':
-                if _evaluate_conditional(host):
-                    self._variable_manager.clear_facts(target_host)
-                    result = TaskResult(host, task, dict(changed=True, msg="inventory successfully refreshed"))
-                else:
-                    result = TaskResult(host, task, dict(changed=False, skipped=True))
-            elif meta_action == 'clear_host_errors':
-                if _evaluate_conditional(host):
+        skipped = False
+        msg = ''
+        if meta_action == 'noop':
+            # FIXME: issue a callback for the noop here?
+            msg="noop"
+        elif meta_action == 'flush_handlers':
+            self.run_handlers(iterator, play_context)
+            msg = "ran handlers"
+        elif meta_action == 'refresh_inventory':
+            self._inventory.refresh_inventory()
+            msg = "inventory successfully refreshed"
+        elif meta_action == 'clear_facts':
+            if _evaluate_conditional(target_host):
+                for host in self._inventory.get_hosts(iterator._play.hosts):
+                    self._variable_manager.clear_facts(host)
+                msg = "facts cleared"
+            else:
+                skipped = True
+        elif meta_action == 'clear_host_errors':
+            if _evaluate_conditional(target_host):
+                for host in self._inventory.get_hosts(iterator._play.hosts):
                     self._tqm._failed_hosts.pop(host.name, False)
                     self._tqm._unreachable_hosts.pop(host.name, False)
                     iterator._host_states[host.name].fail_state = iterator.FAILED_NONE
-                    result = TaskResult(host, task, dict(changed=True, msg="successfully cleared host errors"))
-                else:
-                    result = TaskResult(host, task, dict(changed=False, skipped=True))
-            elif meta_action == 'end_play':
-                if _evaluate_conditional(host):
-                    iterator._host_states[host.name].run_state = iterator.ITERATING_COMPLETE
-                    result = TaskResult(host, task, dict(changed=True, msg="ending play"))
-                else:
-                    result = TaskResult(host, task, dict(changed=False, skipped=True))
-            #elif meta_action == 'reset_connection':
-            #    connection_info.connection.close()
+                msg="cleared host errors"
             else:
-                raise AnsibleError("invalid meta action requested: %s" % meta_action, obj=task._ds)
+                skipped = True
+        elif meta_action == 'end_play':
+            if _evaluate_conditional(target_host):
+                for host in self._inventory.get_hosts(iterator._play.hosts):
+                    if not host.name in  self._tqm._unreachable_hosts:
+                        iterator._host_states[host.name].run_state = iterator.ITERATING_COMPLETE
+                msg="ending play"
+        #elif meta_action == 'reset_connection':
+        #    connection_info.connection.close()
+        else:
+            raise AnsibleError("invalid meta action requested: %s" % meta_action, obj=task._ds)
 
-            if result is not None:
-                results.append(result)
+        result = { 'msg': msg }
+        if skipped:
+            result['skipped'] = True
+        else:
+            result['changed'] = False
 
-        return results
+        return [TaskResult(target_host, task, result)]

lib/ansible/plugins/strategy/linear.py

@@ -218,7 +218,7 @@ class StrategyModule(StrategyBase):
                     if task.action == 'meta':
                         # for the linear strategy, we run meta tasks just once and for
                         # all hosts currently being iterated over rather than one host
-                        results.extend(self._execute_meta(task, play_context, iterator))
+                        results.extend(self._execute_meta(task, play_context, iterator, host))
                         if task.args.get('_raw_params', None) != 'noop':
                             run_once = True
                     else: