| /** |
| * 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.oozie.action.hadoop; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.security.Credentials; |
| import org.apache.hadoop.security.token.Token; |
| import org.apache.hadoop.security.token.TokenIdentifier; |
| import org.apache.hadoop.yarn.client.ClientRMProxy; |
| import org.apache.hadoop.yarn.client.api.YarnClient; |
| import org.apache.hadoop.yarn.util.ConverterUtils; |
| import org.apache.oozie.ErrorCode; |
| import org.apache.oozie.action.ActionExecutor; |
| import org.apache.oozie.service.HadoopAccessorService; |
| import org.apache.oozie.service.Services; |
| import org.apache.oozie.util.XLog; |
| |
| public class YarnRMCredentials implements CredentialsProvider { |
| /** |
| * Add an RM_DELEGATION_TOKEN to the {@link Credentials} provided. |
| * |
| * @param credentials the credentials object which is updated |
| * @param config launcher AM configuration |
| * @param props properties for getting credential token or certificate |
| * @param context workflow context |
| * @throws Exception thrown if failed |
| */ |
| @Override |
| public void updateCredentials(Credentials credentials, Configuration config, CredentialsProperties props, |
| ActionExecutor.Context context) throws Exception { |
| Text rmDelegationTokenService = ClientRMProxy.getRMDelegationTokenService(config); |
| if (rmDelegationTokenService == null) { |
| throw new CredentialException(ErrorCode.E0512, "Can't create RMDelegationTokenService"); |
| } |
| try (YarnClient yarnClient = Services.get().get(HadoopAccessorService.class) |
| .createYarnClient(context.getWorkflow().getUser(), config)) { |
| org.apache.hadoop.yarn.api.records.Token rmDelegationToken = |
| yarnClient.getRMDelegationToken(new Text(new HadoopTokenHelper().getServerPrincipal(config))); |
| if (rmDelegationToken == null) { |
| throw new CredentialException(ErrorCode.E0512, "Returned token is null"); |
| } |
| Token<TokenIdentifier> rmToken = ConverterUtils.convertFromYarn(rmDelegationToken, rmDelegationTokenService); |
| credentials.addToken(rmDelegationTokenService, rmToken); |
| } catch (Exception e) { |
| XLog.getLog(getClass()).debug("Exception in updateCredentials", e); |
| throw e; |
| } |
| } |
| |
| } |