pekko-connectors-sample-jdbc-to-elasticsearch/common/src/main/resources/logback.xml

<configuration>

    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <charset>UTF-8</charset>
            <pattern>%highlight(%date{HH:mm:ss.SSS} %-5level %-50.50([%logger{50}]))  %msg%n</pattern>
        </encoder>
    </appender>

    <logger name="slick" level="INFO"/>
    <logger name="org.apache.pekko.stream.connectors.elasticsearch" level="INFO"/>
    <logger name="com.github.dockerjava" level="INFO"/>
    <logger name="org.testcontainers" level="INFO"/>

    <root level="debug">
        <appender-ref ref="console"/>
    </root>

</configuration>