docker schema registry and kafka rest cannot up - docker

Question

both zookeeper and Kafka communicated well and up running.
not sure why the schema registry and Kafka rest cannot up.
below is the docker-compose file.
this is the schema and rest docker-compose file.
error on this docker
[main] ERROR io.confluent.admin.utils.cli.KafkaReadyCommand - Error while running kafka-ready.
java.lang.RuntimeException: No endpoints found for security protocol [PLAINTEXT]. Endpoints found in ZK [{EXTERNAL=localhost:9092, INTERNAL=kafka:29092}]
at io.confluent.admin.utils.cli.KafkaReadyCommand.main(KafkaReadyCommand.java:143)
[main] INFO org.apache.zookeeper.ZooKeeper - Session: 0x1003f4a8fa10006 closed
[main] ERROR io.confluent.admin.utils.cli.KafkaReadyCommand - Error while running kafka-ready.
java.lang.RuntimeException: No endpoints found for security protocol [PLAINTEXT]. Endpoints found in ZK [{EXTERNAL=localhost:9092, INTERNAL=kafka:29092}]
at io.confluent.admin.utils.cli.KafkaReadyCommand.main(KafkaReadyCommand.java:143)
Docker Compose:
schema-registry:
network_mode: pm
image: confluentinc/cp-schema-registry:5.2.1
hostname: schema-registry
container_name: schema-registry
depends_on:
- zookeeper
- kafka
ports:
- "8081:8081"
environment:
SCHEMA_REGISTRY_HOST_NAME: 'schema-registry'
SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: 'zookeeper:2181'
SCHEMA_REGISTRY_LISTENERS: "http://schema-registry:8081"
rest-proxy:
network_mode: pm
image: confluentinc/cp-kafka-rest:5.2.1
depends_on:
- zookeeper
- kafka
- schema-registry
ports:
- "8082:8082"
hostname: rest-proxy
container_name: rest-proxy
environment:
KAFKA_REST_HOST_NAME: 'rest-proxy'
KAFKA_REST_BOOTSTRAP_SERVERS: 'kafka:29092'
KAFKA_REST_LISTENERS: "http://rest-proxy:8082"
KAFKA_REST_SCHEMA_REGISTRY_URL: 'http://schema-registry:8081'
KAFKA_REST_ZOOKEEPER_CONNECT: 'zookeeper:2181'
this is the zk and kafka docker compose
zookeeper:
network_mode: pm
image: wurstmeister/zookeeper
hostname: zookeeper
container_name: zookeeper
ports:
- "2181:2181"
environment:
ZOOKEEPER_CLIENT_PORT: 2181
ZOOKEEPER_TICK_TIME: 2000
ALLOW_ANONYMOUS_LOGIN: 1
kafka:
network_mode: pm
image: wurstmeister/kafka
hostname: kafka
container_name: kafka
depends_on:
- zookeeper
ports:
- "9092:9092"
environment:
KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
ALLOW_PLAINTEXT_LISTENER: 'yes'
KAFKA_ADVERTISED_HOST_NAME: kafka
KAFKA_LISTENERS: "INTERNAL://:29092,EXTERNAL://:9092"
KAFKA_ADVERTISED_LISTENERS: "INTERNAL://kafka:29092,EXTERNAL://localhost:9092"
KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: "INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT"
KAFKA_INTER_BROKER_LISTENER_NAME: "INTERNAL"
KAFKA_ZOOKEEPER_SESSION_TIMEOUT: "6000"
KAFKA_RESTART_ATTEMPTS: "10"
KAFKA_RESTART_DELAY: "5"
ZOOKEEPER_AUTOPURGE_PURGE_INTERVAL: "0"

Answer 1

It cannot start because it doesn't know which of the two listeners you are trying to connect to. This cannot be determined by providing a ZK address, AFAIK. You shouldn't need Zookeeper for anything other than Kafka, anyway.
For example, you could use the existing all-in-one compose file for Confluent
In particular, notice the REST Proxy doesn't have ZK
https://github.com/confluentinc/cp-all-in-one/blob/5.5.0-post/cp-all-in-one-community/docker-compose.yml#L139-L143
For Schema Registry: https://docs.confluent.io/current/schema-registry/installation/deployment.html#ak-based-primary-election

Answer 2

I got it with proper configuration at kafka docker environment.
environment:
KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
ALLOW_PLAINTEXT_LISTENER: 'yes'
KAFKA_LISTENERS: PLAINTEXT://:9092
KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092
Also kafdrop configuration need not to use 29092. Just use default kafka port 9092.
KAFKA_BROKERCONNECT: "kafka:9092"