I've been trying to add a SASL Authentication to my Kafka Brokers using SASL_PLAINTEXT SCRAM-SHA-256 for a while, but without any success. I keep getting the following error on Kafka's logfile.
ERROR [Controller id=0, targetBrokerId=0] Connection to node 0 failed authentication due to: Authentication failed due to invalid credentials with SASL mechanism SCRAM-SHA-256 (org.apache.kafka.clients.NetworkClient).
But I've been following Kafka docs on SCRAM Config to the letter and not getting anywhere near of successfully achieving this to work.
I registred an …