Charts: Expose a way to control log levels

[lakarchitect]

Is this a request for help?:

---

Is this a BUG REPORT or FEATURE REQUEST? (choose one):

FEATURE REQUEST

Version of Helm and Kubernetes:

Kubernetes 1.3
Helm v2.9.0

Which chart:
Kafka Helm Chart

https://github.com/kubernetes/charts/tree/master/incubator/kafka

What happened:
Unable to change Kafka log levels, currently once helm chart is installed, it is writing TRACE level logs and unable to change this to higher level like debug or Info

What you expected to happen:
Should be able to provide logging.properties location or logLevel=INFO .

How to reproduce it (as minimally and precisely as possible):
Deploy the Kafka Helm chart and check the logs, it prints the TRACE level debugging and there is no option to change it.

Anything else we need to know:
In general how do we control things like helm chart not provided but the underlying software provides those options to modify.

[benjigoldberg]

Thanks for the feature request @lakarchitect -- I will work on this shortly.

As far as your last question, regarding how to control things that the chart doesnt expose -- as of now there is no real way to get at that information. The best bet is to submit a PR to expose the functionality or file a feature request as you have here.

[benjigoldberg]

/assign @benjigoldberg

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Any further update will cause the issue/pull request to no longer be considered stale. Thank you for your contributions.

[stale[bot]]

This issue is being automatically closed due to inactivity.

[jfriedenstab]

Maybe it's still helpful:
You can control Kafka log levels by providing environment variables as described here:
https://docs.confluent.io/current/installation/docker/docs/operations/logging.html
You can set these environment variables for the Kafka Helm chart via envOverrides (see https://github.com/helm/charts/tree/master/incubator/kafka#installing-the-chart), e.g.:

envOverrides:
  kafka.log4j.root.loglevel: INFO
  kafka.log4j.loggers: "kafka.controller=INFO,kafka.producer.async.DefaultEventHandler=INFO,state.change.logger=INFO"