cockroach.log tool or ability to create a less verbose log file

[glennfawcett]

Is your feature request related to a problem? Please describe.
The Cockroach cockroach.log is too verbose and hard to make diagnosis.

Describe the solution you'd like
Have there be two log files:

1. Verbose log like there is today
2. Terse log file which just reports significant informational events and errors that require the attention of a DBA or ADMIN.

Describe alternatives you've considered
Alternative would be to have a tool to parse and decipher the verbose log file.... for example:

crdblog -events -timeframe 1w
crdblog -errors -timeframe 1m
crdblog -alerts -timeframe 1m
crdblog -verbose -timeframe 1w

Additional context
This was requested by a customer but would be useful for all.

[awoods187]

Have you looked at cockroach.stderr.log? To some degree this does this already and could be enhanced.

[knz]

Fixed by #57134 (and can be further exploited with a network log collector when #57170 is merged)