remove Spring starting logs

Author: davidgamez

web/service/Dockerfile

@@ -27,6 +27,7 @@ COPY ${JAR_FILES} /
 ADD ./newrelic/newrelic.jar /newrelic/newrelic.jar
 
 ENV SPRING_PROFILES_ACTIVE=cloud
+ENV SPRING_MAIN_BANNER-MODE=off
 ENV SENTRY_LOGGING_MINIMUM_EVENT_LEVEL=error
 ENV SENTRY_LOGGING_MINIMUM_BREADCRUMB_LEVEL=info
 

web/service/src/main/java/org/mobilitydata/gtfsvalidator/web/service/util/LoggingBridgeConfig.java

@@ -0,0 +1,21 @@
+package org.mobilitydata.gtfsvalidator.web.service.util;
+
+import java.util.logging.LogManager;
+import java.util.logging.Logger;
+import javax.annotation.PostConstruct;
+import org.slf4j.bridge.SLF4JBridgeHandler;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class LoggingBridgeConfig {
+
+  @PostConstruct
+  public void setupJulToSlf4jBridge() {
+    // Reset JUL root logger and install SLF4J bridge
+    LogManager.getLogManager().reset();
+    SLF4JBridgeHandler.removeHandlersForRootLogger();
+    SLF4JBridgeHandler.install();
+
+    Logger rootLogger = Logger.getLogger("");
+  }
+}

web/service/src/main/resources/logback-spring.xml

@@ -34,7 +34,7 @@
         <logger name="org.apache.catalina" level="WARN" />
         <logger name="org.apache.coyote" level="WARN" />
         <logger name="org.apache.tomcat" level="WARN" />
-        <logger name="org.springframework.web" level="WARN" />
+        <logger name="org.springframework.web" level="WARN" additivity="false" />
         <logger name="com.google.cloud.spring.core" level="WARN" />
         <logger name="com.google.cloud.spring.autoconfigure" level="WARN" />