Unable to properly install kafkabridge crd

[Zia-]

Hey guys,

I assume this is the best place to seek some help regarding properly using kafkabridge in minikube cluster.

To give you the specs, I'm new to the Kafka and k8s world; and currently using Minikube for all testing purposes. I have used the Minikube tutorial from this page https://strimzi.io/quickstarts to get going, and it all works like a charm. However, at this stage, I want to expose the Kafka server to the host machine (the machine where Minikube is running as a container). For this, kafkabridge would be needed as explained here https://strimzi.io/blog/2019/07/19/http-bridge-intro; also because I want to communicate via HTTP protocol.

While applying kafka-bridge.yaml, I got the following error message:

error: resource mapping not found for name: "my-bridge" namespace: "" from "kafka_bridge.yaml": no matches for kind  

"KafkaBridge" in version "kafka.strimzi.io/v1alpha1"

ensure CRDs are installed first

From what I can see, kafkabridge crd needs to be installed first. Chatgpt suggested me to install it using the following command:

kubectl apply -f 'https://strimzi.io/install/latest?namespace=kafka&crd=kafka-bridge'

This apparently installed crd, which I verified by running kubectl get crds command:

kafkabridges.kafka.strimzi.io 2023-04-19T16:37:27Z

After updating my kafka_brdige.yaml to edit the apiVersion line to:

apiVersion: kafkabridges.kafka.strimzi.io/v1alpha1

I'm still getting the following error msg:

error: resource mapping not found for name: "my-bridge" namespace: "" from "kafka_bridge.yaml": no matches for kind 

"KafkaBridge" in version "kafkabridges.kafka.strimzi.io/v1alpha1"

ensure CRDs are installed first

At this stage, I don't know what's missing. I'm very close to setting up a working kafka for other services. I would appreciate any sort of help in this regard. Let me know if more info is needed to debug the scenario.

Note: all kubectl commands were run inside kafka namespace.

[scholzj]

Well, ChatGTP was wrong and right at the same time I guess. That is not the way how you install the CRD => the &crd=kafka-bridge is completely made up. But it is not enough to install a single CRD. You have to install the whole operator, which is done by this command kubectl apply -f 'https://strimzi.io/install/latest?namespace=kafka. So it was lucky.

The error you are getting is because you are using an old version of the custom resource => this is because you copied it from a blog post from 2019 ;-). We have up to date examples on GitHub (https://github.com/strimzi/strimzi-kafka-operator/blob/main/examples/bridge/kafka-bridge.yaml) and in the docs. Or in the case of the Bridge, you can also just edit the YAML file and use kafka.strimzi.io/v1beta2 instead of kafka.strimzi.io/v1alpha1. That should I think allow you to apply your YAML.

[Zia-]

Thanks a lot @scholzj. Learning all these concepts as I'm writing :)