natservice/impl/src/main/java/org/opendaylight/netvirt/natservice/internal/UpgradeStateListener.java

   1 /*
   2  * Copyright (c) 2017 Red Hat, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netvirt.natservice.internal;
  10
  11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  12 import static org.opendaylight.netvirt.natservice.internal.NatUtil.requireNonNullElse;
  13
  14 import com.google.common.base.Optional;
  15
  16 import java.math.BigInteger;
  17 import java.util.Collections;
  18 import java.util.List;
  19 import java.util.concurrent.ExecutionException;
  20
  21 import javax.annotation.Nonnull;
  22 import javax.inject.Inject;
  23 import javax.inject.Singleton;
  24
  25 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  26 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  27 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  28 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  29 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  30 import org.opendaylight.genius.infra.Datastore.Configuration;
  31 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  32 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  33 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  34 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  35 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  36 import org.opendaylight.netvirt.natservice.api.CentralizedSwitchScheduler;
  37 import org.opendaylight.serviceutils.tools.mdsal.listener.AbstractClusteredSyncDataTreeChangeListener;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ExtRouters;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.NaptSwitches;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ProviderTypes;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ext.routers.Routers;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ext.routers.routers.ExternalIps;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.napt.switches.RouterToNaptSwitch;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.serviceutils.upgrade.rev180702.UpgradeConfig;
  48 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  49 import org.slf4j.Logger;
  50 import org.slf4j.LoggerFactory;
  51
  52 @Singleton
  53 public class UpgradeStateListener extends AbstractClusteredSyncDataTreeChangeListener<UpgradeConfig> {
  54     private static final Logger LOG = LoggerFactory.getLogger(UpgradeStateListener.class);
  55
  56     private final DataBroker dataBroker;
  57     private final CentralizedSwitchScheduler centralizedSwitchScheduler;
  58     private final NatserviceConfig.NatMode natMode;
  59     private final SNATDefaultRouteProgrammer defaultRouteProgrammer;
  60     private IMdsalApiManager mdsalManager;
  61     private IdManagerService idManager;
  62     private final NaptSwitchHA naptSwitchHA;
  63     private final JobCoordinator coordinator;
  64     private final ManagedNewTransactionRunner txRunner;
  65
  66     @Inject
  67     public UpgradeStateListener(final DataBroker dataBroker,
  68                                 final CentralizedSwitchScheduler centralizedSwitchScheduler,
  69                                 final SNATDefaultRouteProgrammer defaultRouteProgrammer,
  70                                 final IMdsalApiManager mdsalManager,
  71                                 final IdManagerService idManager,
  72                                 final NaptSwitchHA naptSwitchHA,
  73                                 final NatserviceConfig config, final JobCoordinator coordinator) {
  74         super(dataBroker, new DataTreeIdentifier<>(
  75                 LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(UpgradeConfig.class)));
  76         this.dataBroker = dataBroker;
  77         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  78         this.centralizedSwitchScheduler = centralizedSwitchScheduler;
  79         this.defaultRouteProgrammer = defaultRouteProgrammer;
  80         this.coordinator = coordinator;
  81         this.naptSwitchHA = naptSwitchHA;
  82         if (config != null) {
  83             this.natMode = config.getNatMode();
  84         } else {
  85             this.natMode = NatserviceConfig.NatMode.Controller;
  86         }
  87         LOG.trace("UpgradeStateListener (nat) initialized");
  88     }
  89
  90     @Override
  91     public void add(@Nonnull UpgradeConfig newDataObject) {
  92     }
  93
  94     @Override
  95     public void remove(@Nonnull UpgradeConfig removedDataObject) {
  96         if (natMode == NatserviceConfig.NatMode.Conntrack) {
  97             return;
  98         }
  99         LOG.debug("Verify is all Elected Napt Switch and connected back post upgrade");
 100     }
 101
 102     @Override
 103     public void update(@Nonnull UpgradeConfig original, UpgradeConfig updated) {
 104         if (natMode == NatserviceConfig.NatMode.Controller) {
 105             if (original.isUpgradeInProgress() && !updated.isUpgradeInProgress()) {
 106                 Optional<NaptSwitches> npatSwitches = NatUtil.getAllPrimaryNaptSwitches(dataBroker);
 107                 if (npatSwitches.isPresent()) {
 108                     for (RouterToNaptSwitch routerToNaptSwitch : requireNonNullElse(
 109                             npatSwitches.get().getRouterToNaptSwitch(), Collections.<RouterToNaptSwitch>emptyList())) {
 110                         BigInteger primaryNaptDpnId = routerToNaptSwitch.getPrimarySwitchId();
 111                         if (!NatUtil.getSwitchStatus(dataBroker, routerToNaptSwitch.getPrimarySwitchId())) {
 112                             String routerUuid = routerToNaptSwitch.getRouterName();
 113                             coordinator.enqueueJob(NatConstants.NAT_DJC_PREFIX + routerUuid,
 114                                 () -> Collections.singletonList(
 115                                     txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 116                                         confTx -> reElectNewNaptSwitch(routerUuid, primaryNaptDpnId, confTx)
 117                                 )), NatConstants.NAT_DJC_MAX_RETRIES);
 118                         }
 119                     }
 120                 }
 121             }
 122             return;
 123         }
 124
 125         LOG.info("UpgradeStateListener update from {} to {}", original, updated);
 126         if (!(original.isUpgradeInProgress() && !updated.isUpgradeInProgress())) {
 127             return;
 128         }
 129
 130         SingleTransactionDataBroker reader = new SingleTransactionDataBroker(dataBroker);
 131         ExtRouters routers;
 132         try {
 133             routers = reader.syncRead(LogicalDatastoreType.CONFIGURATION,
 134                     InstanceIdentifier.create(ExtRouters.class));
 135         } catch (ReadFailedException e) {
 136             LOG.error("Error reading external routers", e);
 137             return;
 138         }
 139
 140         for (Routers router : requireNonNullElse(routers.getRouters(), Collections.<Routers>emptyList())) {
 141             List<ExternalIps> externalIps = router.getExternalIps();
 142             if (router.isEnableSnat() && externalIps != null && !externalIps.isEmpty()) {
 143                 centralizedSwitchScheduler.scheduleCentralizedSwitch(router);
 144             }
 145         }
 146     }
 147
 148     private void reElectNewNaptSwitch(String routerName, BigInteger primaryNaptDpnId,
 149             TypedReadWriteTransaction<Configuration> confTx) throws ExecutionException, InterruptedException {
 150         // Check if this is externalRouter else ignore
 151         InstanceIdentifier<Routers> extRoutersId = NatUtil.buildRouterIdentifier(routerName);
 152         Optional<Routers> routerData =
 153                 SingleTransactionDataBroker.syncReadOptionalAndTreatReadFailedExceptionAsAbsentOptional(dataBroker,
 154                         LogicalDatastoreType.CONFIGURATION, extRoutersId);
 155         if (!routerData.isPresent()) {
 156             LOG.debug("reElectNewNaptSwitch : SNAT->Ignoring Re-election for router {} since its not External Router",
 157                     routerName);
 158             return;
 159         }
 160         Uuid networkId = routerData.get().getNetworkId();
 161         if (networkId == null) {
 162             LOG.error("hndlTepDelForSnatInEachRtr : SNAT -> Ignoring Re-election  with Napt {} for router {}"
 163                     + "as external network configuraton is missing", primaryNaptDpnId, routerName);
 164             return;
 165         }
 166         long routerId = NatUtil.getVpnId(dataBroker, routerName);
 167         LOG.debug("hndlTepDelForSnatInEachRtr : SNAT->Router {} is associated with ext nw {}", routerId, networkId);
 168         Uuid bgpVpnUuid = NatUtil.getVpnForRouter(dataBroker, routerName);
 169         Long bgpVpnId;
 170         if (bgpVpnUuid == null) {
 171             LOG.debug("hndlTepDelForSnatInEachRtr : SNAT->Internal VPN-ID {} associated to router {}",
 172                     routerId, routerName);
 173             bgpVpnId = routerId;
 174         } else {
 175             bgpVpnId = NatUtil.getVpnId(dataBroker, bgpVpnUuid.getValue());
 176             if (bgpVpnId == NatConstants.INVALID_ID) {
 177                 LOG.error("hndlTepDelForSnatInEachRtr :SNAT->Invalid Private BGP VPN ID returned for routerName {}",
 178                         routerName);
 179                 return;
 180             }
 181         }
 182         defaultRouteProgrammer.removeDefNATRouteInDPN(primaryNaptDpnId, bgpVpnId, confTx);
 183         if (routerData.get().isEnableSnat()) {
 184             LOG.info("hndlTepDelForSnatInEachRtr : SNAT enabled for router {}", routerId);
 185
 186             long routerVpnId = routerId;
 187             if (bgpVpnId != NatConstants.INVALID_ID) {
 188                 LOG.debug("hndlTepDelForSnatInEachRtr : SNAT -> Private BGP VPN ID (Internal BGP VPN ID) {} "
 189                         + "associated to the router {}", bgpVpnId, routerName);
 190                 routerVpnId = bgpVpnId;
 191             } else {
 192                 LOG.debug("hndlTepDelForSnatInEachRtr : SNAT -> Internal L3 VPN ID (Router ID) {} "
 193                         + "associated to the router {}", routerVpnId, routerName);
 194             }
 195             //Re-elect the other available switch as the NAPT switch and program the NAT flows.
 196             ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker,
 197                     routerName, networkId);
 198             if (extNwProvType == null) {
 199                 return;
 200             }
 201             NatUtil.removeSNATFromDPN(dataBroker, mdsalManager, idManager, naptSwitchHA, primaryNaptDpnId, routerName,
 202                     routerId, routerVpnId, extNwProvType, confTx);
 203
 204         } else {
 205             LOG.info("hndlTepDelForSnatInEachRtr : SNAT is not enabled for router {} to handle addDPN event {}",
 206                     routerId, primaryNaptDpnId);
 207         }
 208     }
 209
 210 }