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Exposing Multiple Confluent Kafka Brokers Publicly using ingress-nginx Ingress Controller

I am trying to expose cp-kafka brokers publicly using the ingress-nginx and I happen to see this Stack Overflow question. The answers only shows one broker is exposed outside the cluster. Say, If I have 3 brokers running, how can I expose all 3 Kafka brokers using the nginx ingress controller?

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  1. Chosen as BEST ANSWER
    0

    I was able to fix it by changing the tcp-services configMap data to the one below.

    31090: "default/demo-cp-kafka-0-nodeport:19092"


  2. 0

    Kafka is using binary protocol so you cannot use http routing.

    You would need to expose brokers on a separate ports. Read this page in ingress-nginx docs: Exposing TCP and UDP services. The answer you linked already explains how to do this for one port/service. Now all you have to do is expose two more ports. Since you cannot open a port number more than once, you need to expose every broker on a separate port.

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