problem: run with INFO logging by default

src/main/kotlin/io/emeraldpay/dshackle/GrpcServer.kt

@@ -43,6 +43,7 @@ open class GrpcServer(
     @PostConstruct
     fun start() {
         log.info("Starting GRPC Server...")
+        log.debug("Running with DEBUG LOGGING")
         val port = env.getProperty("port", "8090").toInt()
         log.info("Listening on 0.0.0.0:$port")
         val serverBuilder = NettyServerBuilder.forPort(port)

src/main/resources/log4j2.xml

@@ -18,7 +18,7 @@
     </Appenders>
 
     <Loggers>
-        <Logger name="io.emeraldpay" level="debug" additivity="false">
+        <Logger name="io.emeraldpay" level="${env:DSHACKLE_LOG_LEVEL:-info}" additivity="false">
             <AppenderRef ref="STDOUT"/>
             <AppenderRef ref="STDERR" level="warn"/>
         </Logger>