Support setting persistent command timeout per task basis (#42847)

* Support setting persistent command timeout per task basis

Fixes #42200

*  Add variable `ansible_command_timeout` to `persistent_command_timeout`
   option for `network_cli` and `netconf` connection plugin so that the
   command_timeout can be set per task basis while using `connection=network_cli`
   or `connection=netconf`
   eg:
   ```
   - name: run copy command
     ios_command:
       commands:
       - show version
     vars:
      ansible_command_timeout: 40
   ```

* Modify `ansible-connection` to read command_timeout value from
  connection plugin options.

* Add `ansible_command_timeout` to `persistent_command_timeout`
  option in `persistent` to support `connection=local` so that
  it is backward compatibilty

* To support `connection=local` pass the timeout value as variables
  from persistent connection to `ansible-connection` instead of sending
  it in playcontext

* Fix CI failure

* Fix review comment

1 files changed, 3 insertions, 2 deletions

diff --git a/bin/ansible-connection b/bin/ansible-connection
index f387199d82..f77e3f2fe6 100755
--- a/bin/ansible-connection
+++ b/bin/ansible-connection
@@ -119,7 +119,7 @@ class ConnectionProcess(object):
                     if not data:
                         break
 
-                    signal.alarm(self.connection._play_context.timeout)
+                    signal.alarm(self.connection.get_option('persistent_command_timeout'))
                     resp = self.srv.handle_request(data)
                     signal.alarm(0)
 
@@ -146,7 +146,7 @@ class ConnectionProcess(object):
         self.shutdown()
 
     def command_timeout(self, signum, frame):
-        display.display('command timeout triggered, timeout value is %s secs' % self.play_context.timeout, log_only=True)
+        display.display('command timeout triggered, timeout value is %s secs' % self.connection.get_option('persistent_command_timeout'), log_only=True)
         self.shutdown()
 
     def handler(self, signum, frame):
@@ -273,6 +273,7 @@ def main():
             else:
                 messages.append('found existing local domain socket, using it!')
                 conn = Connection(socket_path)
+                conn.set_options(var_options=variables)
                 pc_data = to_text(init_data)
                 try:
                     messages.extend(conn.update_play_context(pc_data))