kafka-ui | Open-Source Web UI for Apache Kafka Management | Stream Processing library

2181:2181 is two ports, not a Zookeeper hostname/ip and port

Then, Kafka address is referring to the container you're running, not the actual Kafka server. You'll need to modify your Kafka server properties if it's running on the host, and you need to connect from Docker. Related - Connect to Kafka on host from Docker (ksqlDB)

Beyond that, remove the -d or use docker logs to see the actual error.

I found the problem, the image I used:

You seem to misunderstand Docker Compose networking. You should always be using service names, not IP addresses

If you use one Zookeeper server, ZOOKEEPER_SERVERS doesn't do anything. This is used to join a cluster

So, you're looking for this

You've not shared your Docker Compose so I can't give you the specific fix to make, but in essence you need to configure your advertised listeners correctly. This is the value that the broker provides to the client telling it where to find it when it makes subsequent connections.

Details: https://www.confluent.io/blog/kafka-client-cannot-connect-to-broker-on-aws-on-docker-etc/

Kafka topic configuration is stored in Zookeeper. You can access it using

The Spotify container is no longer maintained.

I suggest you follow the Confluent Docker quickstart guides or at least use Docker Compose rather than any all-in-one Kafka+ZooKeeper image

I will also point you at the blue help content that says "or Docker?"

but I don't know what is the ip of the kafka:

Its the same IP as Zookeeper, because you're only using a single host here

It appears you're using Linux, so it's not clear why you need Docker Machine

How come your not installing java in the Dockerfile? I mean doing it like this it will install Java every time you start the container, do you want that?

In case that's not a requirement you can install java in the Dockerfile and then use