things.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ~ Copyright (c) 2023 Contributors to the Eclipse Foundation
  ~
  ~ See the NOTICE file(s) distributed with this work for additional
  ~ information regarding copyright ownership.
  ~
  ~ This program and the accompanying materials are made available under the
  ~ terms of the Eclipse Public License 2.0 which is available at
  ~ http://www.eclipse.org/legal/epl-2.0
  ~
  ~ SPDX-License-Identifier: EPL-2.0
  -->
<configuration>
    <appender name="jsonConsoleAppender" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
            <excludeMdcKeyName>sourceActorSystem</excludeMdcKeyName>
            <excludeMdcKeyName>pekkoUid</excludeMdcKeyName>
            <excludeMdcKeyName>pekkoTimestamp</excludeMdcKeyName>
            <mdcKeyFieldName>x-correlation-id=correlation-id</mdcKeyFieldName>
        </encoder>
    </appender>

    <!-- Do not print INFO cluster messages of mongo driver: -->
    <logger name="org.mongodb.driver" level="WARN"/>

    <logger name="org.apache.pekko.management.cluster.bootstrap.contactpoint.HttpClusterBootstrapRoutes" level="WARN"/>
    <logger name="org.apache.pekko.management.cluster.bootstrap.internal.BootstrapCoordinator" level="WARN"/>
    <logger name="org.apache.pekko.actor.CoordinatedShutdown" level="INFO"/>

    <!-- Log level for the application -->
    <logger name="org.eclipse.ditto" level="${LOG_LEVEL_APPLICATION:-INFO}"/>

    <root level="${LOG_LEVEL:-INFO}">
        <appender-ref ref="jsonConsoleAppender"/>
    </root>
</configuration>