While on codfw due to the switchover:
mattflaschen@deployment-tin:~$ mwscript extensions/GettingStarted/maintenance/populate_categories.php --wiki=enwiki PHP Notice: Undefined index: codfw in /srv/mediawiki-staging/wmf-config/LabsServices.php on line 61 Notice: Undefined index: codfw in /srv/mediawiki-staging/wmf-config/LabsServices.php on line 61 Failed to get Redis connection. Exiting.
I ran that to begin with due to GettingStarted suggestions not working.