Can't connect to local MySQL server through socket '/tmp/mysql-xxxxx.sock' (111) actually, via shell access, it's a bit more informative: ERROR 2002: Can't connect to local MySQL server through socket '/tmp/mysql-xxxxx.sock' (111) ...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111) 2023-05-11T03:32:10.936052Z 0 [Warning] [MY-010918] [Server] 'default_authentication_plugin' is deprecated and will be removed in a future release. Please use authentication_policy ...