log-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO" monitorInterval="5">

  <Properties>
    <Property name="root.log.level">INFO</Property>
  </Properties>

  <Appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout alwaysWriteExceptions="false" pattern='{"timestamp":"%d{ISO8601}","container":"${hostName}","level":"%level","thread":"%t","class":"%c{1}","message":"%msg","throwable":"%enc{%throwable}{JSON}"}%n'/>
    </Console>
    <RollingFile name="RollingFile" fileName="/tmp/besu/besu-${env:HOSTNAME}.log" filePattern="/temp/besu/besu-${env:HOSTNAME}.log" >
      <PatternLayout alwaysWriteExceptions="false" pattern='{"timestamp":"%d{ISO8601}","container":"${hostName}","level":"%level","thread":"%t","class":"%c{1}","message":"%msg","throwable":"%enc{%throwable}{JSON}"}%n'/>
      <Policies>
        <SizeBasedTriggeringPolicy size="10 MB" />
      </Policies>
    </RollingFile>
  </Appenders>

  <Loggers>
    <Root level="${sys:root.log.level}">
      <AppenderRef ref="RollingFile" />
      <AppenderRef ref="Console" />
    </Root>
  </Loggers>

</Configuration>