logback-spring-appenders-json-logstash.xml

<included>
	<!-- Define Logstash TCP Appender -->
	<appender name="TCP_JSON" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
		<!-- The address of your Logstash server -->
		<!-- Change to your Logstash host and port -->
		<destination>logstash-host:5000</destination>

		<!-- Optional: Encoder for JSON format -->
		<encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
			<providers>
				<timestamp />
				<loggerName />
				<threadName />
				<logLevel />
				<message />
				<mdc />
				<stackTrace />
			</providers>
		</encoder>

		<!-- Optional: Keep retrying if Logstash is temporarily unreachable -->
		<connectionStrategy class="net.logstash.logback.appender.retry.ConnectionStrategy">
			<minDelay>5000</minDelay>  <!-- Retry after 5 seconds -->
			<maxDelay>60000</maxDelay> <!-- Maximum retry delay of 60 seconds -->
		</connectionStrategy>

		<!-- Optional: Set a reconnection delay in case of connection loss -->
		<reconnectionDelay>5000</reconnectionDelay> <!-- Reconnect every 5 seconds if disconnected -->

		<!-- Optional: Set the queue size -->
		<queueSize>5000</queueSize>  <!-- Log events to queue if Logstash is unavailable -->
	</appender>
</included>