Enable write logstash logger with nodeIp field

starters/logger-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/logger/logstash/EnhancedLogstashFormatter.java

@@ -28,6 +28,7 @@ public class EnhancedLogstashFormatter extends LogstashFormatter {
     }
 
     private void addAdditionalProviders() {
+        getProviders().addProvider(new NodeIpJsonProvider());
         getProviders().addProvider(new EventDateStringValueJsonProvider());
     }
 

starters/logger-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/logger/logstash/EventDateStringValueJsonProvider.java

@@ -27,7 +27,7 @@ public class EventDateStringValueJsonProvider extends AbstractFieldJsonProvider<
 
     @Override
     public void writeTo(JsonGenerator generator, ILoggingEvent event) throws IOException {
-        JsonWritingUtils.writeStringField(generator, FIELD_EVENT_DATE, getEventDate(event));
+        JsonWritingUtils.writeStringField(generator, getFieldName(), getEventDate(event));
     }
 
     private String getEventDate(ILoggingEvent event) {

starters/logger-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/logger/logstash/NodeIpJsonProvider.java

+package com.schbrain.framework.autoconfigure.logger.logstash;
+
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import com.fasterxml.jackson.core.JsonGenerator;
+import net.logstash.logback.composite.AbstractFieldJsonProvider;
+import net.logstash.logback.composite.JsonWritingUtils;
+
+import java.io.IOException;
+
+/**
+ * @author liaozan
+ * @since 2023/8/31
+ */
+public class NodeIpJsonProvider extends AbstractFieldJsonProvider<ILoggingEvent> {
+
+    private static final String FIELD_NODE_IP = "nodeIp";
+
+    /**
+     * Retrieves the node ip from the k8s environment variable NODE_IP.
+     */
+    private static final String NODE_IP = System.getenv("NODE_IP");
+
+    public NodeIpJsonProvider() {
+        setFieldName(FIELD_NODE_IP);
+    }
+
+    @Override
+    public void writeTo(JsonGenerator generator, ILoggingEvent iLoggingEvent) throws IOException {
+        JsonWritingUtils.writeStringField(generator, getFieldName(), NODE_IP);
+    }
+
+}