Update Schema Registry hostname

Author: k-raina

tests/docker/docker-compose.ducktape.yml

@@ -11,7 +11,7 @@ services:
       KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9093
       KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
       KAFKA_LISTENERS: PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093,PLAINTEXT_HOST://0.0.0.0:29092
-      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092,PLAINTEXT_HOST://localhost:29092
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092,PLAINTEXT_HOST://localhost:29092
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
       KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
@@ -28,7 +28,7 @@ services:
       - "8081:8081"
     environment:
       SCHEMA_REGISTRY_HOST_NAME: schema-registry
-      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: localhost:9092
+      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: kafka:9092
       SCHEMA_REGISTRY_LISTENERS: http://0.0.0.0:8081
       SCHEMA_REGISTRY_KAFKASTORE_TOPIC_REPLICATION_FACTOR: 1
       SCHEMA_REGISTRY_DEBUG: 'true'