Kubernetes logs dump for some time range

Question

Is it possible to obtain Kubernetes logs for a dedicated time range?

All I can do right now is to make a dump of about the last-hour log for the single pod using kubectl logs > dump.log cmd.

But for debugging reasons, it's necessary to obtain the logs for the last week. I was unable to find any abilities to do this in Kubernetes logs.

The only thought is to attach some external service like Kibana for the logs collection, but maybe built-in Kubernetes remedies allow to do this?

Answer 1

...the last-hour log for the single pod

To retrieve last 1 hour log you can do this kubectl logs <pod> --since=1h. Asserted from kubectl help for more options:

--since=0s: Only return logs newer than a relative duration like 5s, 2m, or 3h. Defaults to all logs. Only one of since-time / since may be used.

--since-time='': Only return logs after a specific date (RFC3339). Defaults to all logs. Only one of since-time / since may be used.

--tail=-1: Lines of recent log file to display. Defaults to -1 with no selector, showing all log lines otherwise 10, if a selector is provided.