SASL configuration maybe wrong?

[calbertora]

Hey team.

I'm not sure if the documentation is outdated but if I use how it is:

...
sasl: %{
      mechanism: :plain,
      login: System.get_env("KAFFE_PRODUCER_USER"),
      password: System.get_env("KAFFE_PRODUCER_PASSWORD")
    }
...

It doesn't work. But, when use user instead of login it does:

    sasl: %{
      mechanism: :plain,
      user: System.get_env("KAFFE_PRODUCER_USER"),
      password: System.get_env("KAFFE_PRODUCER_PASSWORD")
    }

[calbertora]

It looks like it is related with the docker compose file I used. Not sure why tho. Here's the docker-compose file I used:

version: "3"
services:
  zookeeper:
    image: "confluentinc/cp-zookeeper:latest"
    container_name: zookeeper
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  kafka:
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    ports:
      - 9092:9092
    environment:
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_SASL_MECHANISM_INTER_BROKER_PROTOCOL: PLAIN
      KAFKA_SASL_ENABLED_MECHANISMS: PLAIN
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXTSASL:SASL_PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_SASL_JAAS_CONFIG: |
        org.apache.kafka.common.security.plain.PlainLoginModule required \
        username="admin" \
        password="admin-secret";

[romul]

How it could be possible?
Regarding to https://github.com/romul/kaffe/blob/master/lib/kaffe/config.ex#L34-L44

[TylerWitt]

It looks like KAFKA_ADVERTISED_LISTENERS is only configured to use PLAINTEXT which is not SASL.

I'm not a kafka expert by any means, but this is my guess.