logback size and time based rolling

logback.xml

<configuration>

    <appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>./logs/myapp.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- daily rollover -->
            <fileNamePattern>./logs/myapp-%d{yyyy-MM-dd_HH}.%i.log.gz</fileNamePattern>
            <!-- keep 10 days' worth of history capped at 3GB total size -->
            <maxHistory>240</maxHistory>
            <maxFileSize>100MB</maxFileSize>
            <totalSizeCap>3GB</totalSizeCap>
        </rollingPolicy>

        <encoder>
            <pattern>%date %level [%thread] %logger{10} [%file:%line] %msg%n</pattern>
        </encoder>

    </appender>

    <root level="INFO">
        <appender-ref ref="ROLLING" />
    </root>

</configuration>