Hello, I'm using Kafka 0.10+ with an SASL authentication on the client:
// kafka_client_jaas.conf KafkaClient { org.apache.kafka.common.security.plain.PlainLoginModule required username="guillaume" password="secret"; }; Everything is working as expected and I want to use the same authentication mechanism in the Kafka REST Proxy. As far as I know this is not yet implemented and in order to do that, each request to the server will need to be authenticated. A simple solution is to send a basic auth over HTTPS and to use this username/password in the PlainLoginModule. During my initial tests I found out that the LoginManager is cached [1] and released only when the Kafka producer/consumer is closed. This means that I can have only one authenticated Kafka producer/consumer (more specifically one Kafka channel) active at a time. Am I missing something ? How can I have multiple active Kafka producers/consumers with different credentials ? Thanks, Guillaume [1] https://github.com/apache/kafka/blob/69ebf6f7be2fc0e471ebd5b7a166468017ff2651/clients/src/main/java/org/apache/kafka/common/security/authenticator/LoginManager.java#L35