How to roll the log file on startup in logback

Question

I would like to configure logback to do the following.

• Log to a file
• Roll the file when it reaches 50MB
• Only keep 7 days worth of logs
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Answer 1

Create your own subclass of ch.qos.logback.core.rolling.TimeBasedRollingPolicy and override its start

public class MyPolicy
    extends ch.qos.logback.core.rolling.TimeBasedRollingPolicy
{

    public void start ( )
    {
        super.start( );
        rollover( );
    }
}