missing configuration advertised.port about kafka-docker HOT 6 CLOSED

I am having the same issue, when I tried to solve it defining KAFKA_ADVERTISED_HOST_NAME and KAFKA_ADVERTISED_PORT in docker-compose.yml it (apparently) worked, but now I am having the problems described in http://stackoverflow.com/questions/35861501/kafka-in-docker-not-working

By the way I am using ubuntu

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You are welcome to try the proposed solution

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@asnir What is the proposed solution if i want to have more than one kafka running?

or if I use docker-compose scale?

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Hi,

@nanounanue in your SO post your compose file is not correct as far as i can tell:

zookeeper:
  image: wurstmeister/zookeeper
  ports:
    - "2181:2181"

kafka:
  image: wurstmeister/kafka
 # hostname: kafka
  ports:
    - "9092"
  links:
    - zookeeper:zk
  environment:
    KAFKA_ADVERTISED_HOST_NAME: "kafka"
    KAFKA_ADVERTISED_PORT: "9092"
    KAFKA_ZOOKEEPER_CONNECT: "zk:2181"

i.e. the port you get is 0.0.0.0:32768->9092/tcp but you set your advertised port to 9092.

the way the advertised port configuration works is that we either:

• take it from the docker environment if it is not specified and the docker socket is mounted (i.e. we can execute docker inside docker [n.b. the stack trace in this issue usually indicates that docker in docker can't be run]) - see https://github.com/wurstmeister/kafka-docker/blob/master/start-kafka.sh#L7
• or we take the value specified in the compose file.

in your example you can see that your port is 0.0.0.0:32768->9092/tcp, so setting the advertised port to 9092 won't work.

to fix it, either fix the port i.e.

ports:
    - "9092:9092"

or remove the KAFKA_ADVERTISED_PORT configuration and add the mounting of the docker socket as in https://github.com/wurstmeister/kafka-docker/blob/master/docker-compose-single-broker.yml

in fact, if you simply change KAFKA_ADVERTISED_HOST_NAME in https://github.com/wurstmeister/kafka-docker/blob/master/docker-compose-single-broker.yml
to your ubuntu host IP things should work.

Let me know if this helps.

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after the above step the port is accessible outside of the container
if we set the port then
"docker-compose scale kafka=2" is not working. it fails with below error.

Cannot start service kafka: driver failed programming external connectivity on endpoint
How to resolve this?

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My issue was with the Kafka service, After deleting the pod I forgot to remove the service from the 'kubectl get services --namespace pod_ns'. Once the service removed everything works well.

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