SQOOP-2813: Sqoop2: Enable kerberos for real Hadoop cluster in the integration test

(Dian Fu via Jarek Jarcec Cecho)

test/src/main/java/org/apache/sqoop/test/infrastructure/providers/HadoopInfrastructureProvider.java

@@ -18,6 +18,7 @@
 package org.apache.sqoop.test.infrastructure.providers;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.log4j.Logger;
 import org.apache.sqoop.test.hadoop.HadoopMiniClusterRunner;
 import org.apache.sqoop.test.hadoop.HadoopRunner;
@@ -61,7 +62,9 @@ public void stop() {
   @Override
   public void setHadoopConfiguration(Configuration conf) {
     try {
-      instance.setConfiguration(instance.prepareConfiguration(conf));
+      Configuration newConf = instance.prepareConfiguration(conf);
+      instance.setConfiguration(newConf);
+      UserGroupInformation.setConfiguration(newConf);
     } catch (Exception e) {
       LOG.error("Could not set configuration.", e);
     }

test/src/main/java/org/apache/sqoop/test/kdc/RealKdcRunner.java

@@ -0,0 +1,61 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sqoop.test.kdc;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL;
+import org.apache.sqoop.client.SqoopClient;
+
+import java.net.URL;
+import java.util.Map;
+
+/**
+ * Represents a real kdc setup. It should be used together with
+ * real clusters such as RealSqoopCluster, HadoopRealClusterRunner etc.
+ */
+public class RealKdcRunner extends KdcRunner {
+  @Override
+  public Configuration prepareHadoopConfiguration(Configuration config) throws Exception {
+    return config;
+  }
+
+  @Override
+  public Map<String, String> prepareSqoopConfiguration(Map<String, String> properties) {
+    return properties;
+  }
+
+  @Override
+  public void start() throws Exception {
+    // Do nothing
+  }
+
+  @Override
+  public void stop() throws Exception {
+    // Do nothing
+  }
+
+  @Override
+  public void authenticateWithSqoopServer(SqoopClient client) throws Exception {
+    // Do nothing
+  }
+
+  @Override
+  public void authenticateWithSqoopServer(URL url, DelegationTokenAuthenticatedURL.Token authToken) throws Exception {
+    // Do nothing
+  }
+}

test/src/main/java/org/apache/sqoop/test/minicluster/RealSqoopCluster.java

@@ -66,6 +66,7 @@ public String getServerUrl() {
 
   @Override
   public String getConfigurationPath() {
-    return "/etc/hadoop/conf/";
+    return System.getProperty(
+        "sqoop.hadoop.config.path", "/etc/hadoop/conf");
   }
 }