Log docker daemon labels (testcontainers#9054)

Author: eddumelendez

core/src/main/java/org/testcontainers/DockerClientFactory.java

@@ -33,6 +33,7 @@
 import java.io.InputStream;
 import java.net.URI;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -41,6 +42,7 @@
 import java.util.UUID;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
+import java.util.stream.Collectors;
 
 /**
  * Singleton class that provides initialized Docker clients.
@@ -210,7 +212,8 @@ public void close() {
         Version version = client.versionCmd().exec();
         log.debug("Docker version: {}", version.getRawValues());
         activeApiVersion = version.getApiVersion();
-        log.info(
+
+        String serverInfo =
             "Connected to docker: \n" +
             "  Server Version: " +
             dockerInfo.getServerVersion() +
@@ -224,8 +227,18 @@ public void close() {
             "  Total Memory: " +
             dockerInfo.getMemTotal() /
             (1024 * 1024) +
-            " MB"
-        );
+            " MB";
+
+        String[] labels = dockerInfo.getLabels();
+        boolean hasLabels = labels != null && labels.length > 0;
+        if (hasLabels) {
+            String formattedLabels = Arrays
+                .stream(labels)
+                .map(label -> "    " + label)
+                .collect(Collectors.joining("\n"));
+            serverInfo += "\n  Labels: \n" + formattedLabels;
+        }
+        log.info(serverInfo);
 
         try {
             //noinspection deprecation