avoid include_Xs conflating vars with options

lib/ansible/playbook/role_include.py

@@ -43,10 +43,10 @@ class IncludeRole(TaskInclude):
     circumstances related to the `- include_role: ...`
     """
 
-    BASE = frozenset(['name', 'role'])  # directly assigned
-    FROM_ARGS = frozenset(['tasks_from', 'vars_from', 'defaults_from'])  # used to populate from dict in role
-    OTHER_ARGS = frozenset(['private', 'allow_duplicates'])  # assigned to matching property
-    VALID_ARGS = frozenset(BASE.union(FROM_ARGS.union(OTHER_ARGS)))  # all valid args
+    BASE = ('name', 'role')  # directly assigned
+    FROM_ARGS = ('tasks_from', 'vars_from', 'defaults_from')  # used to populate from dict in role
+    OTHER_ARGS = ('private', 'allow_duplicates')  # assigned to matching property
+    VALID_ARGS = tuple(frozenset(BASE + FROM_ARGS + OTHER_ARGS))  # all valid args
 
     # =================================================================================
     # ATTRIBUTES
@@ -118,12 +118,12 @@ def load(data, block=None, role=None, task_include=None, variable_manager=None,
             raise AnsibleParserError('Invalid options for include_role: %s' % ','.join(list(bad_opts)))
 
         # build options for role includes
-        for key in IncludeRole.FROM_ARGS.intersection(my_arg_names):
+        for key in my_arg_names.intersection(IncludeRole.FROM_ARGS):
             from_key = key.replace('_from', '')
             ir._from_files[from_key] = basename(ir.args.get(key))
 
         # manual list as otherwise the options would set other task parameters we don't want.
-        for option in IncludeRole.OTHER_ARGS.intersection(my_arg_names):
+        for option in my_arg_names.intersection(IncludeRole.OTHER_ARGS):
             setattr(ir, option, ir.args.get(option))
 
         return ir

lib/ansible/playbook/task_include.py

@@ -61,18 +61,21 @@ def get_vars(self):
         '''
         We override the parent Task() classes get_vars here because
         we need to include the args of the include into the vars as
-        they are params to the included tasks.
+        they are params to the included tasks. But ONLY for 'include'
         '''
-        all_vars = dict()
-        if self._parent:
-            all_vars.update(self._parent.get_vars())
-
-        all_vars.update(self.vars)
-        all_vars.update(self.args)
-
-        if 'tags' in all_vars:
-            del all_vars['tags']
-        if 'when' in all_vars:
-            del all_vars['when']
+        if self.action != 'include':
+            all_vars = super(TaskInclude, self).get_vars()
+        else:
+            all_vars = dict()
+            if self._parent:
+                all_vars.update(self._parent.get_vars())
+
+            all_vars.update(self.vars)
+            all_vars.update(self.args)
+
+            if 'tags' in all_vars:
+                del all_vars['tags']
+            if 'when' in all_vars:
+                del all_vars['when']
 
         return all_vars