Configuring authentication and encryption.

As a user, I need to understand auth mechanisms (BASIC, DIGEST-MD5, OAUTH [KeyCloak], SCRAM, SPNEGO and CERT)
Authentication: Hot Rod > SASL, REST > HTTP Auth
Auth methods
SASL: PLAIN <> HTTP: Basic
SASL: DIGEST-MD5 <> HTTP: Digest
SASL: EXTERNAL <> HTTP: ClientCert

As an admin, I can enable memcached even though it does not support authentication.
As a user, I need to create and manage credentials.
As a user, I need to set up encryption. Adding CA-signed server certs. Creating and adding self-signed certs.