kafka-sasl-plaintext-env-vars

KAFKA_BROKER_ADDRESS=<URL to your Kafka broker e.g localhost:9092 >
KAFKA_TOPIC=<topic name>
KAFKA_SECURITY_PROTOCOL=SASL_PLAINTEXT
KAFKA_SASL_MECHANISM=PLAIN # specifies that username/password will not be protected with additional protection mechanisms
KAFKA_SASL_USERNAME=<username>
KAFKA_SASL_PASSWORD=<password>