Don't restrict local jinja2 variables to those that start with l_issue_20063_jinja2_context_29

Per a change in jinja2 2.9, local variables no longer are prefixed
with l_, so this updates AnsibleJ2Vars to pull in all locals (while
excluding some) regardless of name.

Fixes #20063

2 files changed, 16 insertions, 6 deletions

diff --git a/lib/ansible/template/__init__.py b/lib/ansible/template/__init__.py
index 7e0c559707..e29a8bf1f0 100644
--- a/lib/ansible/template/__init__.py
+++ b/lib/ansible/template/__init__.py
@@ -30,7 +30,7 @@ from numbers import Number
 from jinja2 import Environment
 from jinja2.loaders import FileSystemLoader
 from jinja2.exceptions import TemplateSyntaxError, UndefinedError
-from jinja2.utils import concat as j2_concat
+from jinja2.utils import concat as j2_concat, missing
 from jinja2.runtime import Context, StrictUndefined
 from ansible import constants as C
 from ansible.compat.six import string_types, text_type
@@ -154,15 +154,22 @@ class AnsibleContext(Context):
             return True
         return False
 
+    def _update_unsafe(self, val):
+        if val is not None and not self.unsafe and self._is_unsafe(val):
+            self.unsafe = True
+
     def resolve(self, key):
         '''
         The intercepted resolve(), which uses the helper above to set the
         internal flag whenever an unsafe variable value is returned.
         '''
         val = super(AnsibleContext, self).resolve(key)
-        if val is not None and not self.unsafe:
-            if self._is_unsafe(val):
-                self.unsafe = True
+        self._update_unsafe(val)
+        return val
+
+    def resolve_or_missing(self, key):
+        val = super(AnsibleContext, self).resolve_or_missing(key)
+        self._update_unsafe(val)
         return val
 
 class AnsibleEnvironment(Environment):
diff --git a/lib/ansible/template/vars.py b/lib/ansible/template/vars.py
index 0e9b99e884..fc6140c297 100644
--- a/lib/ansible/template/vars.py
+++ b/lib/ansible/template/vars.py
@@ -50,8 +50,11 @@ class AnsibleJ2Vars:
         self._locals  = dict()
         if isinstance(locals, dict):
             for key, val in iteritems(locals):
-                if key[:2] == 'l_' and val is not missing:
-                    self._locals[key[2:]] = val
+                if val is not missing:
+                    if key[:2] == 'l_':
+                        self._locals[key[2:]] = val
+                    elif key not in ('context', 'environment', 'template'):
+                        self._locals[key] = val
 
     def __contains__(self, k):
         if k in self._templar._available_variables: