My logback.xml

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="5 seconds" 
    packagingData="true"
    debug="false">
    <property name="LOG_PATH" value="${LOG_PATH:-${catalina.base:-/tmp}/logs}" />
    <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%date %highlight(%-5level) [%logger] - %msg%n}"/>
    <property name="FILE_LOG_PATTERN" value="${FILE_LOG_PATTERN:-%date %-5level [%logger] - %msg%n}"/>
    <property name="SENDGRID_API_KEY" value="${SENDGRID_API_KEY:-}" />
    <property name="LOG_MAIL_FROM" value="${LOG_MAIL_FROM:-}" />
    <property name="LOG_MAIL_TO" value="${LOG_MAIL_TO:-}" />
    <property name="LOG_MAIL_SUBJECT" value="Error Notification from ${HOSTNAME}" />
    <!-- https://logback.qos.ch/manual/mdc.html -->
    <property name="MAIL_LOG_PATTERN" value="${MAIL_LOG_PATTERN:-%msg%n%n
Date: %date%n
Level: %level%n
Logger: %logger%n
Exception: %rootException%n
Remote Address: %X{req.remoteHost} %X{req.xForwardedFor}%n
Request: %X{req.method} %X{req.requestURL}%n
QueryString: %X{req.queryString}%n
User Agent: %X{req.userAgent}%n%n}" />
    <!-- https://logback.qos.ch/manual/appenders.html#ConsoleAppender -->
    <appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <charset>UTF-8</charset>
            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
        </encoder>
    </appender>
    <!-- https://logback.qos.ch/manual/appenders.html#RollingFileAppender -->
    <appender name="File" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}/app.log</file>
        <encoder>
            <charset>UTF-8</charset>
            <pattern>${FILE_LOG_PATTERN}</pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!-- rollover daily -->
            <fileNamePattern>${LOG_PATH}/%d{yyyy-MM}/app.%d{yyyy-MM-dd}-%i.log.gz</fileNamePattern>
            <!-- each file should be at most 10MB, keep 180 days' worth of history capped at 1GB total size -->
            <maxFileSize>10MB</maxFileSize>
            <maxHistory>180</maxHistory>
            <totalSizeCap>1GB</totalSizeCap>
        </rollingPolicy>
    </appender>
    <!-- https://logback.qos.ch/manual/appenders.html#SMTPAppender -->
    <appender name="Mail" class="ch.qos.logback.classic.net.SMTPAppender">
      <subject>${LOG_MAIL_SUBJECT}</subject>
      <from>${LOG_MAIL_FROM}</from>
      <to>${LOG_MAIL_TO}</to>
      <smtpHost>smtp.sendgrid.net</smtpHost>
      <smtpPort>465</smtpPort>
      <SSL>true</SSL>
      <username>apikey</username>
      <password>${SENDGRID_API_KEY}</password>
      <layout class="ch.qos.logback.classic.PatternLayout">
        <pattern>${MAIL_LOG_PATTERN}</pattern>
      </layout>
      <cyclicBufferTracker class="ch.qos.logback.core.spi.CyclicBufferTracker">
        <!-- send just one log entry per email -->
        <bufferSize>1</bufferSize>
      </cyclicBufferTracker>
      <!-- deny all events with a level below ERROR -->
      <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
          <level>ERROR</level>
      </filter>
    </appender>
    <logger name="org.springframework" level="ERROR"/>
    <root level="INFO">
        <appender-ref ref="Console"/>
        <appender-ref ref="File"/>
        <appender-ref ref="Mail" />
    </root>
</configuration>