Containerized Kafka client errors when producing messages to the host Kafka server

Question

There are a number of similar types of queries on stackoverflow, but none quite match the problem that I am seeing.

I have a zookeeper/kafka setup on my server which

Answer 1

Your producer (in the container) can't resolve the host name of your Linux guest OS which is returned in the Kafka producers initial metadata request to the bootstrap server. You can add it manually to the /etc/hosts file inside the container or add "--add-host" parameter to the docker run command that launches the image running your producer