Where are the logs for Istiod?

1

How do I get the logs for Istiod ? Where are they located and is there a command with istioctl to get these logs? If not it would certainly make sense to add this command. I am on Ubuntu Linux:18:04 with some nodes being LXC.

2

Hi,

You can use regular kubectl logs command to inspect/see/watch the logs of any pod in your kubernetes cluster, including istiod.

3

Can we persist these application logs to a file in the service directory theough Istio configuration? VirtualService config maybe?

4

Hi. While using kubectl logs ... works, you may need to increase istiod itself log level, which is not the same as AccessLogs (don’t get confused).
To achieve this, you can:

  1. kubectl edit istiod deployment and look for the container command:
    spec:
      containers:
      - args:
        - discovery
        - --monitoringAddr=:15014
        - --log_output_level=default:info <-- Change it to, e.g., debug
  1. You can use istio dashboard controlZ:
istioctl dashboard controlz <istiod_pod>.<istiod_ns>

and find your way to the logs sections.

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