Steps to set/customize log rotation from plesk.
1. Log into the Plesk Control Panel.
2. Select the domain for which you want to set log rotation from the option “Domains” on the left hand side of the Panel.
3. Select “Websites & Domains” tab and click on “Show Advanced Operations”.
4. Select Logs.
5. Click on the Log Rotation icon.
6. You may now turn on log rotation and make any edits to your settings, then click "OK" to save your changes.