KAFKA REST /api/kafka-rest-proxy CONNECTIVITY ERROR

[ankit45621]

Hi,

I am getting same issue with configuration: version: '2' services: zookeeper: image: confluentinc/cp-zookeeper:5.2.2 ports:

• 32181:32181 volumes:
• "/vol1/zk-data:/var/lib/zookeeper/data"
• "/vol2/zk-txn-logs:/var/lib/zookeeper/log" environment: ZOOKEEPER_CLIENT_PORT: 32181 ZOOKEEPER_TICK_TIME: 2000

kafka: image: confluentinc/cp-kafka:5.2.2 volumes:

• "/vol3/kafka-data:/var/lib/kafka/data" depends_on:
• zookeeper ports:
• 29092:29092 environment: KAFKA_BROKER_ID: 1 KAFKA_ZOOKEEPER_CONNECT: zookeeper:32181 KAFKA_LISTENERS: LISTENER_BOB://kafka:9092,LISTENER_FRED://0.0.0.0:29092 KAFKA_ADVERTISED_LISTENERS: LISTENER_FRED://test.moglix.com:29092,LISTENER_BOB://kafka:9092 KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_BOB:PLAINTEXT,LISTENER_FRED:PLAINTEXT KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_BOB KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1 KAFKA_CONFIG_STORAGE_REPLICATION_FACTOR: 1 KAFKA_STATUS_STORAGE_REPLICATION_FACTOR: 1

kafkaconnectjdbc: image: confluentinc/cp-kafka-connect network_mode: host hostname: localhost depends_on:

• zookeeper
• kafka ports:
• "48083:48083" volumes:
• /tmp/quickstart/file:/tmp/quickstart
• /etc/jars:/etc/kafka-connect/jars environment: CONNECT_BOOTSTRAP_SERVERS: 'localhost:29092' CONNECT_REST_ADVERTISED_HOST_NAME: localhost CONNECT_REST_PORT: 48083 CONNECT_GROUP_ID: compose-connect-group CONNECT_CONFIG_STORAGE_TOPIC: docker-connect-configs CONNECT_CONFIG_STORAGE_REPLICATION_FACTOR: 1 CONNECT_OFFSET_FLUSH_INTERVAL_MS: 10000 CONNECT_OFFSET_STORAGE_TOPIC: docker-connect-offsets CONNECT_OFFSET_STORAGE_REPLICATION_FACTOR: 1 CONNECT_STATUS_STORAGE_TOPIC: docker-connect-status CONNECT_STATUS_STORAGE_REPLICATION_FACTOR: 1 CONNECT_KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter CONNECT_VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter CONNECT_INTERNAL_KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter CONNECT_INTERNAL_VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter CONNECT_ZOOKEEPER_CONNECT: 'localhost:32181' CONNECT_LOG4J_ROOT_LOGLEVEL: INFO CONNECT_LOG4J_LOGGERS: "org.apache.kafka.connect.runtime.rest=WARN,org.reflections=ERROR" CONNECT_PLUGIN_PATH: '/usr/share/java,/etc/kafka-connect/jars'

debezium: image: debezium/connect:0.9 depends_on:

• zookeeper
• kafka ports:
• "38083:38083" environment: BOOTSTRAP_SERVERS: 'kafka:9092' REST_ADVERTISED_HOST_NAME: localhost REST_PORT: 38083 GROUP_ID: debezium-connect-group CONFIG_STORAGE_TOPIC: docker-debezium-configs CONFIG_STORAGE_REPLICATION_FACTOR: 1 OFFSET_FLUSH_INTERVAL_MS: 10000 OFFSET_STORAGE_TOPIC: docker-debezium-offsets OFFSET_STORAGE_REPLICATION_FACTOR: 1 STATUS_STORAGE_TOPIC: docker-debezium-status STATUS_STORAGE_REPLICATION_FACTOR: 1 KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter INTERNAL_KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter INTERNAL_VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter ZOOKEEPER_CONNECT: 'zookeeper:32181' kafka-rest-proxy: image: confluentinc/cp-kafka-rest:5.2.2 container_name: kafka-rest-proxy network_mode: host restart: unless-stopped depends_on:
• zookeeper
• kafka ports:
• "8082:8082" environment: KAFKA_REST_BOOTSTRAP_SERVERS: kafka:29092 KAFKA_REST_ZOOKEEPER_CONNECT: zookeeper:32181 KAFKA_REST_HOST_NAME: kafka-rest-proxy KAFKA_REST_LISTENERS: http://0.0.0.0:8082 KAFKA_REST_CONSUMER_REQUEST_TIMEOUT_MS: 40000

kafka-topics-ui: image: landoop/kafka-topics-ui:0.9.4 container_name: kafka-topics-ui restart: unless-stopped depends_on:

• kafka-rest-proxy ports:
• "8085:8000" environment: KAFKA_REST_PROXY_URL: http://kafka-rest-proxy:8082 PROXY: "true"

Logs:

Landoop Kafka Topics UI 0.9.4 Visit https://github.com/Landoop/kafka-topics-ui/tree/master/docker to find more about how you can configure this container.

Enabling proxy. Kafka REST Proxy URL to /api/kafka-rest-proxy.

Activating privacy features... done. http://0.0.0.0:8000 172.21.0.1 - - [17/Sep/2019:07:42:36 +0000] "GET /env.js HTTP/1.0" 200 181 172.21.0.1 - - [17/Sep/2019:07:42:37 +0000] "GET /api/kafka-rest-proxy/topics HTTP/1.0" 502 16 172.21.0.1 - - [17/Sep/2019:07:42:37 +0000] "GET /api/kafka-rest-proxy/brokers HTTP/1.0" 502 16 172.21.0.1 - - [17/Sep/2019:07:42:37 +0000] "POST /api/kafka-rest-proxy/consumers/kafka_topics_ui_json_2019-09-17-01-12-21-342 HTTP/1.0" 502 16 172.21.0.1 - - [17/Sep/2019:07:42:37 +0000] "GET /api/kafka-rest-proxy/topics HTTP/1.0" 502 16

Please help me with this issue.

[mariosant]

Hey @ankit45621, apologies for the delay. Sounds like network misconfiguration. Closing this one for now, please feel free to reply if you feel it is an issue with kafka-topics-ui per se.