Spring Boot logging configuration for JSON output

logback-spring.xml

<!--
Make sure you have the logback encoder in your dependencies:
<dependency>
        <groupId>net.logstash.logback</groupId>
        <artifactId>logstash-logback-encoder</artifactId>
        <version>6.2</version>
</dependency>
<dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
</dependency>
-->
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <property resource="application.properties" />
    <contextName>${spring.application.name}</contextName>
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>

    <springProfile name="dev">
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            <encoder>
                <pattern>${CONSOLE_LOG_PATTERN}</pattern>
                <charset>utf8</charset>
            </encoder>
        </appender>
    </springProfile>

    <springProfile name="!dev">
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
                <providers>
                    <contextName>
                        <fieldName>app</fieldName>
                    </contextName>
                    <timestamp>
                        <fieldName>ts</fieldName>
                        <timeZone>UTC</timeZone>
                    </timestamp>
                    <loggerName>
                        <fieldName>logger</fieldName>
                    </loggerName>
                    <logLevel>
                        <fieldName>level</fieldName>
                    </logLevel>
                    <callerData>
                        <classFieldName>class</classFieldName>
                        <methodFieldName>method</methodFieldName>
                        <lineFieldName>line</lineFieldName>
                        <fileFieldName>file</fileFieldName>
                    </callerData>
                    <threadName>
                        <fieldName>thread</fieldName>
                    </threadName>
                    <mdc />
                    <arguments>
                        <includeNonStructuredArguments>false</includeNonStructuredArguments>
                    </arguments>
                    <stackTrace>
                        <fieldName>stack</fieldName>
                    </stackTrace>
                    <message>
                        <fieldName>msg</fieldName>
                    </message>
                </providers>
            </encoder>
        </appender>
    </springProfile>

    <!-- This root level will only be active until Spring Boot starts up. -->
    <root level="INFO">
        <appender-ref ref="CONSOLE" />
    </root>

</configuration>