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// 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
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package com.cloud.network.resource.wrapper;
import static com.cloud.network.resource.NiciraNvpResource.NAME_MAX_LEN;
import static com.cloud.network.resource.NiciraNvpResource.NUM_RETRIES;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.CreateLogicalRouterAnswer;
import com.cloud.agent.api.CreateLogicalRouterCommand;
import com.cloud.network.nicira.L3GatewayAttachment;
import com.cloud.network.nicira.LogicalRouter;
import com.cloud.network.nicira.LogicalRouterPort;
import com.cloud.network.nicira.LogicalSwitchPort;
import com.cloud.network.nicira.Match;
import com.cloud.network.nicira.NiciraNvpApi;
import com.cloud.network.nicira.NiciraNvpApiException;
import com.cloud.network.nicira.NiciraNvpTag;
import com.cloud.network.nicira.PatchAttachment;
import com.cloud.network.nicira.RouterNextHop;
import com.cloud.network.nicira.SingleDefaultRouteImplicitRoutingConfig;
import com.cloud.network.nicira.SourceNatRule;
import com.cloud.network.resource.NiciraNvpResource;
import com.cloud.network.utils.CommandRetryUtility;
import com.cloud.resource.CommandWrapper;
import com.cloud.resource.ResourceWrapper;
@ResourceWrapper(handles = CreateLogicalRouterCommand.class)
public final class NiciraNvpCreateLogicalRouterCommandWrapper extends CommandWrapper<CreateLogicalRouterCommand, Answer, NiciraNvpResource> {
private static final Logger s_logger = Logger.getLogger(NiciraNvpCreateLogicalRouterCommandWrapper.class);
@Override
public Answer execute(final CreateLogicalRouterCommand command, final NiciraNvpResource niciraNvpResource) {
final String routerName = command.getName();
final String gatewayServiceUuid = command.getGatewayServiceUuid();
final String logicalSwitchUuid = command.getLogicalSwitchUuid();
final List<NiciraNvpTag> tags = new ArrayList<NiciraNvpTag>();
tags.add(new NiciraNvpTag("cs_account", command.getOwnerName()));
final String publicNetworkNextHopIp = command.getPublicNextHop();
final String publicNetworkIpAddress = command.getPublicIpCidr();
final String internalNetworkAddress = command.getInternalIpCidr();
s_logger.debug("Creating a logical router with external ip " + publicNetworkIpAddress + " and internal ip " + internalNetworkAddress + "on gateway service " +
gatewayServiceUuid);
final NiciraNvpApi niciraNvpApi = niciraNvpResource.getNiciraNvpApi();
try {
// Create the Router
LogicalRouter lrc = new LogicalRouter();
lrc.setDisplayName(niciraNvpResource.truncate(routerName, NAME_MAX_LEN));
lrc.setTags(tags);
lrc.setRoutingConfig(new SingleDefaultRouteImplicitRoutingConfig(new RouterNextHop(publicNetworkNextHopIp)));
lrc = niciraNvpApi.createLogicalRouter(lrc);
// store the switchport for rollback
LogicalSwitchPort lsp = null;
try {
// Create the outside port for the router
LogicalRouterPort lrpo = new LogicalRouterPort();
lrpo.setAdminStatusEnabled(true);
lrpo.setDisplayName(niciraNvpResource.truncate(routerName + "-outside-port", NAME_MAX_LEN));
lrpo.setTags(tags);
final List<String> outsideIpAddresses = new ArrayList<String>();
outsideIpAddresses.add(publicNetworkIpAddress);
lrpo.setIpAddresses(outsideIpAddresses);
lrpo = niciraNvpApi.createLogicalRouterPort(lrc.getUuid(), lrpo);
// Attach the outside port to the gateway service on the correct VLAN
final L3GatewayAttachment attachment = new L3GatewayAttachment(gatewayServiceUuid);
if (command.getVlanId() != 0) {
attachment.setVlanId(command.getVlanId());
}
niciraNvpApi.updateLogicalRouterPortAttachment(lrc.getUuid(), lrpo.getUuid(), attachment);
// Create the inside port for the router
LogicalRouterPort lrpi = new LogicalRouterPort();
lrpi.setAdminStatusEnabled(true);
lrpi.setDisplayName(niciraNvpResource.truncate(routerName + "-inside-port", NAME_MAX_LEN));
lrpi.setTags(tags);
final List<String> insideIpAddresses = new ArrayList<String>();
insideIpAddresses.add(internalNetworkAddress);
lrpi.setIpAddresses(insideIpAddresses);
lrpi = niciraNvpApi.createLogicalRouterPort(lrc.getUuid(), lrpi);
// Create the inside port on the lswitch
lsp = new LogicalSwitchPort(niciraNvpResource.truncate(routerName + "-inside-port", NAME_MAX_LEN), tags, true);
lsp = niciraNvpApi.createLogicalSwitchPort(logicalSwitchUuid, lsp);
// Attach the inside router port to the lswitch port with a PatchAttachment
niciraNvpApi.updateLogicalRouterPortAttachment(lrc.getUuid(), lrpi.getUuid(), new PatchAttachment(lsp.getUuid()));
// Attach the inside lswitch port to the router with a PatchAttachment
niciraNvpApi.updateLogicalSwitchPortAttachment(logicalSwitchUuid, lsp.getUuid(), new PatchAttachment(lrpi.getUuid()));
// Setup the source nat rule
final SourceNatRule snr = new SourceNatRule();
snr.setToSourceIpAddressMin(publicNetworkIpAddress.split("/")[0]);
snr.setToSourceIpAddressMax(publicNetworkIpAddress.split("/")[0]);
final Match match = new Match();
match.setSourceIpAddresses(internalNetworkAddress);
snr.setMatch(match);
snr.setOrder(200);
niciraNvpApi.createLogicalRouterNatRule(lrc.getUuid(), snr);
} catch (final NiciraNvpApiException e) {
// We need to destroy the router if we already created it
// this will also take care of any router ports and rules
try {
niciraNvpApi.deleteLogicalRouter(lrc.getUuid());
if (lsp != null) {
niciraNvpApi.deleteLogicalSwitchPort(logicalSwitchUuid, lsp.getUuid());
}
} catch (final NiciraNvpApiException ex) {
}
throw e;
}
return new CreateLogicalRouterAnswer(command, true, "Logical Router created (uuid " + lrc.getUuid() + ")", lrc.getUuid());
} catch (final NiciraNvpApiException e) {
final CommandRetryUtility retryUtility = niciraNvpResource.getRetryUtility();
retryUtility.addRetry(command, NUM_RETRIES);
return retryUtility.retry(command, CreateLogicalRouterAnswer.class, e);
}
}
}