| /* |
| * 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.eagle.app.utils; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| import java.io.IOException; |
| |
| /** |
| * This class provides util methods for Eagle connector communicating |
| * with secured cluster. |
| */ |
| public class HadoopSecurityUtil { |
| |
| public static final String EAGLE_KEYTAB_FILE_KEY = "eagle.keytab.file"; |
| public static final String EAGLE_PRINCIPAL_KEY = "eagle.kerberos.principal"; |
| |
| public static void login(Configuration kConfig) throws IOException { |
| String keytab = kConfig.get(EAGLE_KEYTAB_FILE_KEY); |
| String principal = kConfig.get(EAGLE_PRINCIPAL_KEY); |
| if ( keytab == null || principal == null || keytab.isEmpty() || principal.isEmpty()) { |
| return; |
| } |
| |
| kConfig.setBoolean("hadoop.security.authorization", true); |
| kConfig.set("hadoop.security.authentication", "kerberos"); |
| UserGroupInformation.setConfiguration(kConfig); |
| UserGroupInformation.loginUserFromKeytab(kConfig.get(EAGLE_PRINCIPAL_KEY), kConfig.get(EAGLE_KEYTAB_FILE_KEY)); |
| } |
| |
| } |
