Configure log rotation

[ahlund]

Hello!

Sorry if I have missed the obvious but is there a way to configure the log rotation policy or, even better, stop Stirling-PDF from rotating the log files (I would prefer to use logrotate on a Debian server)?

Regards,
Åke

[dosubot[bot]]

I could not find any documentation or configuration options in Stirling-PDF for managing or disabling log rotation. There are no references to log rotation policies in the official documentation or in any issues or discussions in the repository, which suggests that Stirling-PDF does not have a built-in log rotation mechanism that you can configure or disable directly source.

If you want to manage log rotation yourself, you can safely use logrotate on your Debian server to handle Stirling-PDF's log files. Just ensure that your logrotate configuration points to the correct log file paths used by Stirling-PDF. If you have any trouble identifying the log file locations, let me know and I can help you find them.

To reply, just mention my name @dosu.

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[ahlund]

I know there's no documentation about this BUT Stirling-PDF does rotate the logs. Old log files are in the format info-YYYY-MM-DD.log and, to my knowledge, I have not configured that.

[ahlund]

Maybe they are rotated on startup and, if so, how do I stop that?

[dosubot[bot]]

I was unable to find any documentation, configuration options, or code references that explain how Stirling-PDF handles log rotation or whether it rotates logs specifically on startup. There is no information available about how to disable or modify this behavior, nor any indication of where this logic might be implemented in the codebase or through a third-party library.

If you need more control over log rotation, you may need to investigate the application's source code directly or monitor the log files during startup to see exactly when and how they are rotated. At this time, there is no documented way to stop Stirling-PDF from rotating its log files.

To reply, just mention my name @dosu.

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[ahlund]

Not good...

[ahlund]

Ok, this seems to be the file that controles the logging:

src/main/resources/logback.xml

How do I override this?

[dosubot[bot]]

You can override the default logback.xml in Stirling-PDF by creating a custom file with the same path under a special directory. Specifically, create the file customFiles/src/main/resources/logback.xml in your deployment and place your modified logback.xml there. Stirling-PDF will use your custom file instead of the default one if it exists. This approach allows you to change log rotation policies or disable rotation entirely by editing the logback.xml contents as needed. For more details on overriding files, see the official documentation.

Alternatively, if you only need to adjust logging levels (not rotation), you can use the /configs/custom_settings.yml file. This file supports Spring Boot logging properties and lets you control log verbosity without touching logback.xml. Example configuration and more info are available here.

If you want to fully disable internal log rotation and use logrotate, you must ensure your custom logback.xml does not define any rolling policies or file naming patterns that trigger rotation. If you need help crafting a minimal logback.xml for this purpose, let me know.

To reply, just mention my name @dosu.

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[ahlund]

Even better, is there a way to send the logs to syslog instead of a file?