Moving ConnectionInformation -> PlayContext

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

lib/ansible/playbook/task.py

@@ -34,6 +34,7 @@ from ansible.playbook.block import Block
 from ansible.playbook.conditional import Conditional
 from ansible.playbook.role import Role
 from ansible.playbook.taggable import Taggable
+from ansible.utils.vars import combine_vars
 
 __all__ = ['Task']
 
@@ -292,22 +293,38 @@ class Task(Base, Conditional, Taggable, Become):
         if self._task_include:
             self._task_include.set_loader(loader)
 
-    def _get_parent_attribute(self, attr, extend=False):
+    def _get_parent_attribute(self, attr, extend=False, combine=False):
         '''
         Generic logic to get the attribute or parent attribute for a task value.
         '''
         value = self._attributes[attr]
-        if self._block and (value is None or extend):
+        if self._block and (value is None or extend or combine):
             parent_value = getattr(self._block, attr)
             if extend:
                 value = self._extend_value(value, parent_value)
+            elif combine and isinstance(parent_value, dict) and isinstance(value, dict):
+                value = combine_vars(parent_value, value)
             else:
                 value = parent_value
-        if self._task_include and (value is None or extend):
+        if self._task_include and (value is None or extend or combine):
             parent_value = getattr(self._task_include, attr)
             if extend:
                 value = self._extend_value(value, parent_value)
+            elif combine:
+                value = combine_vars(parent_value, value)
             else:
                 value = parent_value
         return value
 
+    def _get_attr_environment(self):
+        '''
+        Override for the 'tags' getattr fetcher, used from Base.
+        '''
+        environment = self._attributes['tags']
+        if environment is None:
+            environment = dict()
+
+        environment = self._get_parent_attribute('environment', combine=True)
+
+        return environment
+