Log host:port when connecting to a microgrid (#400)

Author: Marenz

src/frequenz/sdk/microgrid/connection_manager.py

@@ -8,6 +8,7 @@
 component graph.
 """
 
+import logging
 from abc import ABC, abstractmethod
 from typing import Optional
 
@@ -21,6 +22,8 @@
 _DEFAULT_MICROGRID_HOST = "[::1]"
 _DEFAULT_MICROGRID_PORT = 443
 
+_logger = logging.getLogger(__name__)
+
 
 class ConnectionManager(ABC):
     """Creates and stores core features."""
@@ -157,6 +160,8 @@ async def initialize(host: str, port: int) -> None:
     if _CONNECTION_MANAGER is not None:
         raise AssertionError("MicrogridApi was already initialized.")
 
+    _logger.info("Connecting to microgrid at %s:%s", host, port)
+
     microgrid_api = _InsecureConnectionManager(host, port)
     await microgrid_api._initialize()  # pylint: disable=protected-access