Auth: Support for GCP IAM

[Muchembi]

Issue submitter TODO list

• I've searched for an already existing issues here
• I'm running a supported version of the application which is listed here and the feature is not present there

Is your proposal related to a problem?

Problem:
Google Managed Service for Apache Kafka cluster does not have a native UI to view the topics and messages. Auth is doen through an IAM service account. Kafabat UI does not currently support this.

• Reference Docs

Describe the feature you're interested in

I would like to be able to view my GMSK cluster on Kafbat UI.

I should be able to set up the following config to access my GMSK cluster:

bootstrap.servers=bootstrap.CLUSTER_ID.us-central1.managedkafka.PROJECT_ID.cloud.goog:9092
security.protocol=SASL_SSL
sasl.mechanism=OAUTHBEARER
sasl.login.callback.handler.class=com.google.cloud.hosted.kafka.auth.GcpLoginCallbackHandler
sasl.jaas.config=org.apache.kafka.common.security.oauthbearer.OAuthBearerLoginModule required;

Describe alternatives you've considered

• AKHQ -> Not very intuitive

Version you're running

715df05

Additional context

No response

[github-actions]

Hi Muchembi! 👋

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[germanosin]

Hi @Muchembi,
Thanks for raising the issue. Apologies, but I didn't fully understand your request. Are you looking for GCP IAM support for Apache Kafka cluster authentication? If so, you can add the required dependency to the classpath and use it directly.

If you're interested in contributing this to the core, feel free to open a PR with the necessary dependency.
Anyway thanks for your interest and time!

[Muchembi]

Hello @germanosin.

I have the code ready. It's quite similar to the PR you had shared.

Here

I can add some implementatation docs if you like.

[Haarolean]

@germanosin we've discussed this on discord with @Muchembi, a PR should be similar to #530 we've recently pulled