Fix ansible-connection persist after playbook run complete issue (#61591)

* Fix ansible-connection persist after playbook run issue

*  PR https://github.com/ansible/ansible/pull/59153 to add support
   for delaying the ansible-connection added an old issue of
   ansible-connection persisting even after playbook run is finished
   till either command timeout or connect timeout is triggered.
   ansible-connection persist after playbook execution is done
   and also delays the connection initilization untill a method
   in invoked from module side on the connection object.

* Add chanegelog

(cherry picked from commit 4f29b5a76b)

changelogs/fragments/ansible-connection_persist_issue.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+- ansible-connection persists even after playbook run is completed (https://github.com/ansible/ansible/pull/61591)

lib/ansible/cli/scripts/ansible_connection_cli_stub.py

@@ -120,7 +120,7 @@ class ConnectionProcess(object):
 
     def run(self):
         try:
-            while True:
+            while not self.connection._conn_closed:
                 signal.signal(signal.SIGALRM, self.connect_timeout)
                 signal.signal(signal.SIGTERM, self.handler)
                 signal.alarm(self.connection.get_option('persistent_connect_timeout'))

lib/ansible/plugins/connection/__init__.py

@@ -275,6 +275,7 @@ class NetworkConnectionBase(ConnectionBase):
     def __init__(self, play_context, new_stdin, *args, **kwargs):
         super(NetworkConnectionBase, self).__init__(play_context, new_stdin, *args, **kwargs)
         self._messages = []
+        self._conn_closed = False
 
         self._network_os = self._play_context.network_os
 
@@ -335,6 +336,7 @@ class NetworkConnectionBase(ConnectionBase):
         self.queue_message('vvvv', 'reset call on connection instance')
 
     def close(self):
+        self._conn_closed = True
         if self._connected:
             self._connected = False