root@7d8c9e050b38:/usr/local/redis-6.2.1# update-rc.d redis default
usage: update-rc.d [-n] [-f] <basename> remove
update-rc.d [-n] <basename> disable|enable [S|2|3|4|5]
-n: not really
-f: force
The disable|enable API is not stable and might change in the future.