ansible: disable interpreter recycling for connections.

Must explicitly specify enable_lru=True in ContextService.get() to
trigger recycling.

ansible_mitogen/connection.py

@@ -134,6 +134,7 @@ def _connect_setns(spec):
 def _connect_sudo(spec):
     return {
         'method': 'sudo',
+        'enable_lru': True,
         'kwargs': {
             'username': spec['become_user'],
             'password': spec['become_pass'],

ansible_mitogen/services.py

@@ -167,7 +167,7 @@ class ContextService(mitogen.service.Service):
             del self._response_by_key[key]
             del self._refs_by_context[context]
             del self._key_by_context[context]
-            if lru:
+            if lru and context in lru:
                 lru.remove(context)
             if new_context:
                 lru.append(new_context)
@@ -256,7 +256,7 @@ class ContextService(mitogen.service.Service):
             raise Error('unsupported method: %(transport)s' % spec)
 
         context = method(via=via, **spec['kwargs'])
-        if via:
+        if via and spec.get('enable_lru'):
             self._update_lru(context, spec, via)
         else:
             # For directly connected contexts, listen to the associated

docs/ansible.rst

@@ -213,10 +213,6 @@ container.
       as duplicate connections between hops, due to not perfectly replicating
       the configuration Ansible would normally use for the intermediary.
 
-    * The extension does not understand the difference between a delegated
-      connection and a ``become_user``. If interpreter recycling kicks in, a
-      delegated connection could be prematurely recycled.
-
 To enable connection delegation, set ``mitogen_via=<inventory name>`` on the
 command line, or as host and group variables.