Add begin logs to config reload/config minigraph/warm-reboot/fast-reboot (#2694)

- What I did
Add more logs for config reload/config minigraph/warm-reboot/fast/reboot to identify in the log (notice level) what was the command executed which could cause a service affect.

- How I did it
Add more logs for config reload/config minigraph/warm-reboot/fast/reboot.

- How to verify it
Manual test

Author: Junchao-Mellanox

config/main.py

@@ -1549,7 +1549,8 @@ def reload(db, filename, yes, load_sysinfo, no_service_restart, force, file_form
     if not yes:
         click.confirm(message, abort=True)
 
-    log.log_info("'reload' executing...")
+    argv_str = ' '.join(['config', *sys.argv[1:]])
+    log.log_notice(f"'reload' executing with command: {argv_str}")
 
     num_asic = multi_asic.get_num_asics()
     cfg_files = []
@@ -1569,7 +1570,7 @@ def reload(db, filename, yes, load_sysinfo, no_service_restart, force, file_form
 
     #Stop services before config push
     if not no_service_restart:
-        log.log_info("'reload' stopping services...")
+        log.log_notice("'reload' stopping services...")
         _stop_services()
 
     # In Single ASIC platforms we have single DB service. In multi-ASIC platforms we have a global DB
@@ -1678,7 +1679,7 @@ def reload(db, filename, yes, load_sysinfo, no_service_restart, force, file_form
     # status from all services before we attempt to restart them
     if not no_service_restart:
         _reset_failed_services()
-        log.log_info("'reload' restarting services...")
+        log.log_notice("'reload' restarting services...")
         _restart_services()
 
 @config.command("load_mgmt_config")
@@ -1725,11 +1726,12 @@ def load_mgmt_config(filename):
 @clicommon.pass_db
 def load_minigraph(db, no_service_restart, traffic_shift_away, override_config, golden_config_path):
     """Reconfigure based on minigraph."""
-    log.log_info("'load_minigraph' executing...")
+    argv_str = ' '.join(['config', *sys.argv[1:]])
+    log.log_notice(f"'load_minigraph' executing with command: {argv_str}")
 
     #Stop services before config push
     if not no_service_restart:
-        log.log_info("'load_minigraph' stopping services...")
+        log.log_notice("'load_minigraph' stopping services...")
         _stop_services()
 
     # For Single Asic platform the namespace list has the empty string
@@ -1815,7 +1817,7 @@ def load_minigraph(db, no_service_restart, traffic_shift_away, override_config,
     if not no_service_restart:
         _reset_failed_services()
         #FIXME: After config DB daemon is implemented, we'll no longer need to restart every service.
-        log.log_info("'load_minigraph' restarting services...")
+        log.log_notice("'load_minigraph' restarting services...")
         _restart_services()
     click.echo("Please note setting loaded from minigraph will be lost after system reboot. To preserve setting, run `config save`.")
 

scripts/fast-reboot

@@ -522,6 +522,7 @@ then
     exit "${EXIT_FAILURE}"
 fi
 
+debug "Starting $REBOOT_TYPE"
 
 # re-run the script in background mode with detaching from the terminal session
 if [[ x"${DETACH}" == x"yes" && x"${ALREADY_DETACHED}" == x"" ]]; then