Add toggle

lib/ansible/config/base.yml

@@ -764,6 +764,20 @@ DEFAULT_JINJA2_NATIVE:
   type: boolean
   yaml: {key: jinja2_native}
   version_added: 2.7
+JINJA2_BYTECODE_CACHE:
+  name: Cache the jinja2 bytecode for compiled templates
+  description:
+    - This option, which is enabled by default, will cache the jinja2 generated
+      bytecode for templates reducing execution time, specifically for template
+      heavy playbooks. Disabling this will prevent the bytecode cache from
+      being used.
+  env:
+    - {name: ANSIBLE_JINJA2_BYTECODE_CACHE}
+  ini:
+    - {key: jinja2_bytecode_cache, section: defaults}
+  type: boolean
+  default: True
+  version_added: '2.17'
 DEFAULT_KEEP_REMOTE_FILES:
   name: Keep remote files
   default: False

lib/ansible/template/__init__.py

@@ -583,6 +583,9 @@ class AnsibleEnvironment(NativeEnvironment):
         template_class: t.Type[Template] | None = None,
     ) -> Template:
 
+        if not C.JINJA2_BYTECODE_CACHE:
+            return super().from_string(source, globals=globals, template_class=template_class)
+
         cache_dir = os.path.join(C.DEFAULT_LOCAL_TMP, 'j2cache')
         if not os.path.isdir(cache_dir):
             os.makedirs(cache_dir, mode=0o700, exist_ok=True)