Programmatic SentryAppender + profile-dependent LogstashEncoder in logback-spring.xml

logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <!-- local profile outputs logs in plain text for readability -->
    <springProfile name="local">
        <include resource="org/springframework/boot/logging/logback/console-appender.xml" />
    </springProfile>

    <!-- non-local profiles output logs in JSON -->
    <springProfile name="!local">
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            <encoder class="net.logstash.logback.encoder.LogstashEncoder">
                <includeCallerInfo>true</includeCallerInfo>
                <!-- other LogstashEncoder config options-->
          </encoder>
        </appender>
    </springProfile>

    <root>
        <appender-ref ref="CONSOLE" />
        <!-- In my app a Sentry appender gets added programmatically -->
    </root>

</configuration>

LogbackConfig.java

@Configuration
public class LogbackConfig {
    @Value("${dsn.etc}")
    private String dsn;
    
    @Bean(initMethod = "start", destroyMethod = "stop")
    public SentryAppender sentryAppender(){
        LoggerContext ctx = (LoggerContext) LoggerFactory.getILoggerFactory();
        SentryAppender sentryAppender = new SentryAppender();
        sentryAppender.setDsn(dsn);
        // ...other SentryAppender options...
        sentryAppender.setContext(ctx);

        Logger root = (Logger)LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
        root.addAppender(sentryAppender);
        return sentryAppender;
    }
}