GitLab Geo -- setup primary docs clarification

in the docs, it says to configure “gitlab.rb”:
roles([‘geo_primary_role’])
however, the existing setting (in 14.1.3) seems to be:
# roles [‘redis_sentinel_role’, ‘redis_master_role’]
so should it be:
\1) roles([‘geo_primary_role’])
or
\2) roles [‘redis_sentinel_role’, ‘redis_master_role’, ‘geo_primary_role’]
… please advise
Thanks