| /** |
| * 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.ambari.server.serveraction.upgrades; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentMap; |
| |
| import org.apache.ambari.server.AmbariException; |
| import org.apache.ambari.server.actionmanager.HostRoleStatus; |
| import org.apache.ambari.server.agent.CommandReport; |
| import org.apache.ambari.server.controller.KerberosHelper; |
| import org.apache.ambari.server.serveraction.AbstractServerAction; |
| import org.apache.ambari.server.serveraction.kerberos.KDCType; |
| import org.apache.ambari.server.state.Cluster; |
| import org.apache.ambari.server.state.Clusters; |
| import org.apache.ambari.server.state.Config; |
| |
| import com.google.inject.Inject; |
| |
| /** |
| * This class is made to emulate a manual action. It runs in RU when Ranger Admin |
| * is installed to the cluster and moving to a version that requires a new keytab. |
| * |
| * There are checks for: |
| * <ul> |
| * <li>Kerberos is enabled for the cluster</li> |
| * <li>If the KDC type is set (KDCType is not {@link KDCType#NONE}, implying manual)</li> |
| * </ul> |
| */ |
| public class KerberosKeytabsAction extends AbstractServerAction { |
| |
| private static final String KERBEROS_ENV = "kerberos-env"; |
| private static final String KDC_TYPE_KEY = "kdc_type"; |
| |
| |
| /** |
| * Used for retrieving the cluster (and eventually the desired configuration). |
| */ |
| @Inject |
| private Clusters m_clusters; |
| |
| @Inject |
| private KerberosHelper m_kerberosHelper; |
| |
| @Override |
| public CommandReport execute(ConcurrentMap<String, Object> requestSharedDataContext) |
| throws AmbariException, InterruptedException { |
| |
| |
| String clusterName = getExecutionCommand().getClusterName(); |
| Cluster cluster = m_clusters.getCluster(clusterName); |
| |
| StringBuilder stdout = new StringBuilder(); |
| |
| stdout.append(String.format("Checking %s is secured by Kerberos... %s", |
| clusterName, m_kerberosHelper.isClusterKerberosEnabled(cluster))).append(System.lineSeparator()); |
| |
| if (!m_kerberosHelper.isClusterKerberosEnabled(cluster)) { |
| stdout.append(String.format("Cluster %s is not secured by Kerberos. No action required.", |
| clusterName)); |
| |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", stdout.toString(), ""); |
| } |
| |
| stdout.append(String.format("Loading %s for cluster %s", KERBEROS_ENV, clusterName)).append(System.lineSeparator()); |
| |
| Config kerberosEnv = cluster.getDesiredConfigByType(KERBEROS_ENV); |
| if (kerberosEnv == null) { |
| stdout.append(String.format("Configuration %s was not found. No action required.", KERBEROS_ENV)); |
| |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", stdout.toString(), ""); |
| } |
| |
| Map<String, String> kerbProperties = kerberosEnv.getProperties(); |
| |
| KDCType kdcType = KDCType.NONE; |
| |
| if (null != kerbProperties && kerbProperties.containsKey(KDC_TYPE_KEY)) { |
| kdcType = KDCType.translate(kerbProperties.get(KDC_TYPE_KEY)); |
| } |
| |
| stdout.append(String.format("Checking KDC type... %s", kdcType)).append(System.lineSeparator()); |
| |
| if (KDCType.NONE == kdcType) { |
| stdout.append(String.format("KDC Type is %s, keytabs are managed manually. No action required.", kdcType)); |
| |
| return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", stdout.toString(), ""); |
| } |
| |
| stdout.append(String.format("Ambari is managing Kerberos keytabs. Regenerate " + |
| "keytabs after upgrade is complete.")); |
| |
| // !!! make this holding, as the user must manually acknowlege. |
| return createCommandReport(0, HostRoleStatus.HOLDING, "{}", stdout.toString(), ""); |
| } |
| |
| } |