Logback to Elasticsearch through yaml or properties - spring

Question

I have many spring based microservice project where I used Logback to Elasticsearch for saving all logs to Elastic search index. I have configured using xml based on some tutorials I got. The configuration is based on xml like as shown below. Instead of xml how can we configure Logback to Elasticsearch using yaml or key value property files.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<springProperty scope="context" name="microserviceName"
source="spring.application.name" />
<springProperty scope="context" name="profile"
source="spring.profiles.active" />
<springProperty scope="context" name="myESHost"
source="logging.esHost" />
<springProperty scope="context" name="myESPort"
source="logging.esPort" />
<springProperty scope="context" name="myESLoggingLevel"
source="logging.esLoggingLevel" />
<springProperty scope="context" name="consoleLoggingLevel"
source="logging.consoleLoggingLevel" />
<appender name="ELASTIC" class="com.internetitem.logback.elasticsearch.ElasticsearchAppender">
<url>http://${myESHost}:${myESPort}/_bulk</url>
<index>logs-%date{yyyy-MM-dd}</index>
<type>tester</type>
<loggerName>es-logger</loggerName> <!-- optional -->
<errorLoggerName>es-error-logger</errorLoggerName> <!-- optional -->
<connectTimeout>30000</connectTimeout> <!-- optional (in ms, default 30000) -->
<errorsToStderr>false</errorsToStderr> <!-- optional (default false) -->
<includeCallerData>false</includeCallerData> <!-- optional (default false) -->
<logsToStderr>false</logsToStderr> <!-- optional (default false) -->
<maxQueueSize>104857600</maxQueueSize> <!-- optional (default 104857600) -->
<maxRetries>3</maxRetries> <!-- optional (default 3) -->
<readTimeout>30000</readTimeout> <!-- optional (in ms, default 30000) -->
<sleepTime>250</sleepTime> <!-- optional (in ms, default 250) -->
<rawJsonMessage>false</rawJsonMessage> <!-- optional (default false) -->
<includeMdc>false</includeMdc> <!-- optional (default false) -->
<maxMessageSize>100</maxMessageSize> <!-- optional (default -1 -->
<authentication class="com.internetitem.logback.elasticsearch.config.BasicAuthentication" /> <!-- optional -->
<properties>
<property>
<name>host</name>
<value>${HOSTNAME}</value>
<allowEmpty>false</allowEmpty>
</property>
<property>
<name>severity</name>
<value>%level</value>
</property>
<property>
<name>thread</name>
<value>%thread</value>
</property>
<property>
<name>stacktrace</name>
<value>%ex</value>
</property>
<property>
<name>logger</name>
<value>%logger</value>
</property>
</properties>
<headers>
<header>
<name>Content-Type</name>
<value>text/plain</value>
</header>
</headers>
</appender>
<root level="info">
<appender-ref ref="FILELOGGER" />
<appender-ref ref="ELASTIC" />
</root>
<logger name="es-error-logger" level="INFO" additivity="false">
<appender-ref ref="FILELOGGER" />
</logger>
<logger name="es-logger" level="INFO" additivity="false">
<appender name="ES_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- ... -->
<encoder>
<pattern>%msg</pattern> <!-- This pattern is important, otherwise it won't be the raw Elasticsearch format anyomre -->
</encoder>
</appender>
</logger>
</configuration>

Answer 1

That is possible. The configuration would go to the application.yml file (see https://springframework.guru/using-yaml-in-spring-boot-to-configure-logback). Having many services to configure this may not be a solution for you as the configuration gets mangled with each services configuration.
To keep things separated you could use groovy (https://springframework.guru/logback-configuration-using-groovy), if you have it, or try to incorporate a logback.yml via external configuration files (https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html) which I have not used yet.