Cluster connection issue with Docker about kafka-webview HOT 3 CLOSED

Thanks @Crim
The problem is solved. It's my network issue.
Thanks.

from kafka-webview.

So to be completely upfront -- I'm definitely not an expert with Docker. My gut feeling is perhaps the network setup between your Docker instance and the host EC2 instance are not configured to allow them to talk to each other.

Locally I use a mac laptop. Running the Docker image and Kafka/Zookeeper on the host OS, I had to configure my broker hostname in Kafka-Webview as 'docker.for.mac.localhost' which is a special hostname reserved for the host OS network address. Running on Linux/EC2 you mileage may vary here as that specific hostname appears to only be for the OSX version of Docker.

Additionally I had to ensure that the Kafka service was listening/bound to the appropriate networking device to allow inbound connections accessible to the Docker instance.

from kafka-webview.

Essentially googling for "docker how to connect to service on host" may be what you're looking to do. Keep in mind that Kafka complicates matters a bit in that you can configure/override the hostname/address it advertises.

For reference this is how I had the listeners property configured for my kafka brokers that allowed this to work for me. I had no explicitly defined advertised.host.name or advertised.listeners properties.

listeners=PLAINTEXT://:9092,SSL://:9093

Again your mileage may vary here. Hope this helps!

from kafka-webview.