This section describes how to enable client authentication using scram-sha-256 authentication on existing FEP server and FEPpgpool2 containers

For information about FEP server containers, refer to "4.15.1 Enabling Client Authentication Using scram-sha-256 Authentication in the FEP Server Container". At this time, if the database user created by the user already has a password encrypted with md5, change the password to one encrypted with scram-sha-256. Therefore, reset the password.

For information about the FEPpgpool2 container, refer to "4.15.2 Enabling Client Authentication Using scram-sha-256 Authentication in the FEPpgpool2 Container". If an existing FEPpgpool2 custom resource is deployed, delete the FEPpgpool2 custom resource. You do not need to delete the FEPpgpool2 custom resource if you want to change the contents of the secret specified in the FEPpgpool2 custom resource or the secret created automatically by the operator.