Add a configuration option to rollover or truncate log file

[wutkemtt]

[ ] Defect
[X] Feature Request or Change Proposal

Feature Requests

Use Case:

The NATS log file can grow to gigabytes when it is not cleared or deleted manually or via cron job.

Proposed Change:

Add a configuration option to rollover the log file on a daily or similar base or based on a fix maximum size.

Who Benefits From The Change(s)?

As the log file is locked by the NATS service it could not rolled over by a cron or manually without stopping the service first. Having a configuration option for this would make the life of all NATS operators much easier.

Alternative Approaches

[ripienaar]

I think LogSizeLimit does what you want, its a recent addition in #1202

[kozlovic]

@wutkemtt Yes, as @ripienaar mentioned, this feature is available in NATS Server 2.1.4 (https://github.com/nats-io/nats-server/releases/tag/v2.1.4) and NATS Streaming Server 0.17.0 (https://github.com/nats-io/nats-streaming-server/releases/tag/v0.17.0) (PR #nats-io/nats-streaming-server#1018)

[wutkemtt]

That will solve our problem, thanks.
We will upgrade to the newest version immediately.