8351382: New test containers/docker/TestMemoryWithSubgroups.java is failing

Reviewed-by: sgehwolf, dholmes

Author: sercher

test/hotspot/jtreg/containers/docker/TestMemoryWithSubgroups.java

@@ -21,6 +21,7 @@
  * questions.
  */
 
+import jdk.test.lib.Container;
 import jdk.test.lib.containers.docker.Common;
 import jdk.test.lib.containers.docker.DockerTestUtils;
 import jdk.test.lib.containers.docker.DockerRunOptions;
@@ -46,6 +47,19 @@ public class TestMemoryWithSubgroups {
 
     private static final String imageName = Common.imageName("subgroup");
 
+    static String getEngineInfo(String format) throws Exception {
+        return DockerTestUtils.execute(Container.ENGINE_COMMAND, "info", "-f", format)
+            .getStdout();
+    }
+
+    static boolean isRootless() throws Exception {
+        // Docker and Podman have different INFO structures.
+        // The node path for Podman is .Host.Security.Rootless, that also holds for
+        // Podman emulating Docker CLI. The node path for Docker is .SecurityOptions.
+        return (getEngineInfo("{{.Host.Security.Rootless}}").contains("true") ||
+                getEngineInfo("{{.SecurityOptions}}").contains("name=rootless"));
+    }
+
     public static void main(String[] args) throws Exception {
         Metrics metrics = Metrics.systemMetrics();
         if (metrics == null) {
@@ -56,6 +70,9 @@ public static void main(String[] args) throws Exception {
             System.out.println("Unable to run docker tests.");
             return;
         }
+        if (isRootless()) {
+            throw new SkippedException("Test skipped in rootless mode");
+        }
         Common.prepareWhiteBox();
         DockerTestUtils.buildJdkContainerImage(imageName);