Examples with DestinationTO com.cloud.agent.api.to.LoadBalancerTO.DestinationTO used on opensource projects

Example 1 with DestinationTO

use of com.cloud.agent.api.to.LoadBalancerTO.DestinationTO in project cloudstack by apache.

the class HAProxyConfigurator method getRulesForPool.

private List<String> getRulesForPool(final LoadBalancerTO lbTO, final boolean keepAliveEnabled) {
    StringBuilder sb = new StringBuilder();
    final String poolName = sb.append(lbTO.getSrcIp().replace(".", "_")).append('-').append(lbTO.getSrcPort()).toString();
    final String publicIP = lbTO.getSrcIp();
    final String publicPort = Integer.toString(lbTO.getSrcPort());
    final String algorithm = lbTO.getAlgorithm();
    final List<String> result = new ArrayList<String>();
    // add line like this: "listen  65_37_141_30-80 65.37.141.30:80"
    sb = new StringBuilder();
    sb.append("listen ").append(poolName).append(" ").append(publicIP).append(":").append(publicPort);
    result.add(sb.toString());
    sb = new StringBuilder();
    sb.append("\t").append("balance ").append(algorithm);
    result.add(sb.toString());
    int i = 0;
    Boolean destsAvailable = false;
    final String stickinessSubRule = getLbSubRuleForStickiness(lbTO);
    final List<String> dstSubRule = new ArrayList<String>();
    final List<String> dstWithCookieSubRule = new ArrayList<String>();
    for (final DestinationTO dest : lbTO.getDestinations()) {
        // add line like this: "server  65_37_141_30-80_3 10.1.1.4:80 check"
        if (dest.isRevoked()) {
            continue;
        }
        sb = new StringBuilder();
        sb.append("\t").append("server ").append(poolName).append("_").append(Integer.toString(i++)).append(" ").append(dest.getDestIp()).append(":").append(dest.getDestPort()).append(" check");
        if (lbTO.getLbProtocol() != null && lbTO.getLbProtocol().equals("tcp-proxy")) {
            sb.append(" send-proxy");
        }
        dstSubRule.add(sb.toString());
        if (stickinessSubRule != null) {
            sb.append(" cookie ").append(dest.getDestIp().replace(".", "_")).append('-').append(dest.getDestPort()).toString();
            dstWithCookieSubRule.add(sb.toString());
        }
        destsAvailable = true;
    }
    Boolean httpbasedStickiness = false;
    /* attach stickiness sub rule only if the destinations are available */
    if (stickinessSubRule != null && destsAvailable == true) {
        for (final StickinessPolicyTO stickinessPolicy : lbTO.getStickinessPolicies()) {
            if (stickinessPolicy == null) {
                continue;
            }
            if (StickinessMethodType.LBCookieBased.getName().equalsIgnoreCase(stickinessPolicy.getMethodName()) || StickinessMethodType.AppCookieBased.getName().equalsIgnoreCase(stickinessPolicy.getMethodName())) {
                httpbasedStickiness = true;
            }
        }
        if (httpbasedStickiness) {
            result.addAll(dstWithCookieSubRule);
        } else {
            result.addAll(dstSubRule);
        }
        result.add(stickinessSubRule);
    } else {
        result.addAll(dstSubRule);
    }
    if (stickinessSubRule != null && !destsAvailable) {
        s_logger.warn("Haproxy stickiness policy for lb rule: " + lbTO.getSrcIp() + ":" + lbTO.getSrcPort() + ": Not Applied, cause:  backends are unavailable");
    }
    if (publicPort.equals(NetUtils.HTTP_PORT) && !keepAliveEnabled || httpbasedStickiness) {
        sb = new StringBuilder();
        sb.append("\t").append("mode http");
        result.add(sb.toString());
        sb = new StringBuilder();
        sb.append("\t").append("option httpclose");
        result.add(sb.toString());
    }
    result.add(blankLine);
    return result;
}

Example 2 with DestinationTO

use of com.cloud.agent.api.to.LoadBalancerTO.DestinationTO in project cloudstack by apache.

the class NetscalerResource method execute.

private synchronized Answer execute(final LoadBalancerConfigCommand cmd, final int numRetries) {
    try {
        if (_isSdx) {
            return Answer.createUnsupportedCommandAnswer(cmd);
        }
        final LoadBalancerTO[] loadBalancers = cmd.getLoadBalancers();
        if (loadBalancers == null) {
            return new Answer(cmd);
        }
        for (final LoadBalancerTO loadBalancer : loadBalancers) {
            final String srcIp = loadBalancer.getSrcIp();
            final int srcPort = loadBalancer.getSrcPort();
            final String lbProtocol = getNetScalerProtocol(loadBalancer);
            final String lbAlgorithm = loadBalancer.getAlgorithm();
            final String nsVirtualServerName = generateNSVirtualServerName(srcIp, srcPort);
            final String nsMonitorName = generateNSMonitorName(srcIp, srcPort);
            final LbSslCert sslCert = loadBalancer.getSslCert();
            if (loadBalancer.isAutoScaleVmGroupTO()) {
                applyAutoScaleConfig(loadBalancer);
                // Continue to process all the rules.
                continue;
            }
            boolean hasMonitor = false;
            boolean deleteMonitor = false;
            boolean destinationsToAdd = false;
            boolean deleteCert = false;
            for (final DestinationTO destination : loadBalancer.getDestinations()) {
                if (!destination.isRevoked()) {
                    destinationsToAdd = true;
                    break;
                }
            }
            if (!loadBalancer.isRevoked() && destinationsToAdd) {
                // create a load balancing virtual server
                addLBVirtualServer(nsVirtualServerName, srcIp, srcPort, lbAlgorithm, lbProtocol, loadBalancer.getStickinessPolicies(), null);
                if (s_logger.isDebugEnabled()) {
                    s_logger.debug("Created load balancing virtual server " + nsVirtualServerName + " on the Netscaler device");
                }
                // create a new monitor
                final HealthCheckPolicyTO[] healthCheckPolicies = loadBalancer.getHealthCheckPolicies();
                if (healthCheckPolicies != null && healthCheckPolicies.length > 0 && healthCheckPolicies[0] != null) {
                    for (final HealthCheckPolicyTO healthCheckPolicyTO : healthCheckPolicies) {
                        if (!healthCheckPolicyTO.isRevoked()) {
                            addLBMonitor(nsMonitorName, lbProtocol, healthCheckPolicyTO);
                            hasMonitor = true;
                        } else {
                            deleteMonitor = true;
                            hasMonitor = false;
                        }
                    }
                }
                for (final DestinationTO destination : loadBalancer.getDestinations()) {
                    final String nsServerName = generateNSServerName(destination.getDestIp());
                    final String nsServiceName = generateNSServiceName(destination.getDestIp(), destination.getDestPort());
                    if (!destination.isRevoked()) {
                        // add a new server
                        if (!nsServerExists(nsServerName)) {
                            final com.citrix.netscaler.nitro.resource.config.basic.server nsServer = new com.citrix.netscaler.nitro.resource.config.basic.server();
                            nsServer.set_name(nsServerName);
                            nsServer.set_ipaddress(destination.getDestIp());
                            apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.server.add(_netscalerService, nsServer);
                            if (apiCallResult.errorcode != 0 && apiCallResult.errorcode != NitroError.NS_RESOURCE_EXISTS) {
                                throw new ExecutionException("Failed to add server " + destination.getDestIp() + " due to" + apiCallResult.message);
                            }
                        }
                        // create a new service using the server added
                        if (!nsServiceExists(nsServiceName)) {
                            final com.citrix.netscaler.nitro.resource.config.basic.service newService = new com.citrix.netscaler.nitro.resource.config.basic.service();
                            newService.set_name(nsServiceName);
                            newService.set_port(destination.getDestPort());
                            newService.set_servername(nsServerName);
                            newService.set_state("ENABLED");
                            if (lbProtocol.equalsIgnoreCase(NetUtils.SSL_PROTO)) {
                                newService.set_servicetype(NetUtils.HTTP_PROTO);
                            } else {
                                newService.set_servicetype(lbProtocol);
                            }
                            apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.service.add(_netscalerService, newService);
                            if (apiCallResult.errorcode != 0) {
                                throw new ExecutionException("Failed to create service " + nsServiceName + " using server " + nsServerName + " due to" + apiCallResult.message);
                            }
                        }
                        //bind service to load balancing virtual server
                        if (!nsServiceBindingExists(nsVirtualServerName, nsServiceName)) {
                            final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding svcBinding = new com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding();
                            svcBinding.set_name(nsVirtualServerName);
                            svcBinding.set_servicename(nsServiceName);
                            apiCallResult = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.add(_netscalerService, svcBinding);
                            if (apiCallResult.errorcode != 0) {
                                throw new ExecutionException("Failed to bind service: " + nsServiceName + " to the lb virtual server: " + nsVirtualServerName + " on Netscaler device");
                            }
                        }
                        // service.
                        if (hasMonitor) {
                            if (!isServiceBoundToMonitor(nsServiceName, nsMonitorName)) {
                                bindServiceToMonitor(nsServiceName, nsMonitorName);
                            }
                        } else {
                            // delete it.
                            if (nsMonitorExist(nsMonitorName)) {
                                // unbind the service from the monitor and
                                // delete the monitor
                                unBindServiceToMonitor(nsServiceName, nsMonitorName);
                                deleteMonitor = true;
                            }
                        }
                        if (sslCert != null && lbProtocol.equalsIgnoreCase(NetUtils.SSL_PROTO)) {
                            if (sslCert.isRevoked()) {
                                deleteCert = true;
                            } else {
                                // If there is a chain, that should go first to the NS
                                String previousCertKeyName = null;
                                if (sslCert.getChain() != null) {
                                    final List<Certificate> chainList = CertificateHelper.parseChain(sslCert.getChain());
                                    // go from ROOT to intermediate CAs
                                    for (final Certificate intermediateCert : Lists.reverse(chainList)) {
                                        final String fingerPrint = CertificateHelper.generateFingerPrint(intermediateCert);
                                        final String intermediateCertKeyName = generateSslCertKeyName(fingerPrint);
                                        final String intermediateCertFileName = intermediateCertKeyName + ".pem";
                                        if (!SSL.isSslCertKeyPresent(_netscalerService, intermediateCertKeyName)) {
                                            final PemObject pemObject = new PemObject(intermediateCert.getType(), intermediateCert.getEncoded());
                                            final StringWriter textWriter = new StringWriter();
                                            try (final PemWriter pemWriter = new PemWriter(textWriter)) {
                                                pemWriter.writeObject(pemObject);
                                                pemWriter.flush();
                                            } catch (final IOException e) {
                                                if (s_logger.isDebugEnabled()) {
                                                    s_logger.debug("couldn't write PEM to a string", e);
                                                }
                                            // else just close the certDataStream
                                            }
                                            SSL.uploadCert(_ip, _username, _password, intermediateCertFileName, textWriter.toString().getBytes());
                                            SSL.createSslCertKey(_netscalerService, intermediateCertFileName, null, intermediateCertKeyName, null);
                                        }
                                        if (previousCertKeyName != null && !SSL.certLinkExists(_netscalerService, intermediateCertKeyName, previousCertKeyName)) {
                                            SSL.linkCerts(_netscalerService, intermediateCertKeyName, previousCertKeyName);
                                        }
                                        previousCertKeyName = intermediateCertKeyName;
                                    }
                                }
                                //netscaler uses ".pem" format for "bundle" files
                                final String certFilename = generateSslCertName(sslCert.getFingerprint()) + ".pem";
                                //netscaler uses ".pem" format for "bundle" files
                                final String keyFilename = generateSslKeyName(sslCert.getFingerprint()) + ".pem";
                                final String certKeyName = generateSslCertKeyName(sslCert.getFingerprint());
                                try (final ByteArrayOutputStream certDataStream = new ByteArrayOutputStream()) {
                                    certDataStream.write(sslCert.getCert().getBytes());
                                    if (!SSL.isSslCertKeyPresent(_netscalerService, certKeyName)) {
                                        SSL.uploadCert(_ip, _username, _password, certFilename, certDataStream.toByteArray());
                                        SSL.uploadKey(_ip, _username, _password, keyFilename, sslCert.getKey().getBytes());
                                        SSL.createSslCertKey(_netscalerService, certFilename, keyFilename, certKeyName, sslCert.getPassword());
                                    }
                                } catch (final IOException e) {
                                    if (s_logger.isDebugEnabled()) {
                                        s_logger.debug("couldn't open buffer for certificate", e);
                                    }
                                // else just close the certDataStream
                                }
                                if (previousCertKeyName != null && !SSL.certLinkExists(_netscalerService, certKeyName, previousCertKeyName)) {
                                    SSL.linkCerts(_netscalerService, certKeyName, previousCertKeyName);
                                }
                                SSL.bindCertKeyToVserver(_netscalerService, certKeyName, nsVirtualServerName);
                            }
                        }
                        if (s_logger.isDebugEnabled()) {
                            s_logger.debug("Successfully added LB destination: " + destination.getDestIp() + ":" + destination.getDestPort() + " to load balancer " + srcIp + ":" + srcPort);
                        }
                    } else {
                        // remove a destination from the deployed load balancing rule
                        final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding[] serviceBindings = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.get(_netscalerService, nsVirtualServerName);
                        if (serviceBindings != null) {
                            for (final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding binding : serviceBindings) {
                                if (nsServiceName.equalsIgnoreCase(binding.get_servicename())) {
                                    // delete the binding
                                    apiCallResult = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.delete(_netscalerService, binding);
                                    if (apiCallResult.errorcode != 0) {
                                        throw new ExecutionException("Failed to delete the binding between the virtual server: " + nsVirtualServerName + " and service:" + nsServiceName + " due to" + apiCallResult.message);
                                    }
                                    // check if service is bound to any other virtual server
                                    if (!isServiceBoundToVirtualServer(nsServiceName)) {
                                        // no lb virtual servers are bound to this service so delete it
                                        apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.service.delete(_netscalerService, nsServiceName);
                                        if (apiCallResult.errorcode != 0) {
                                            throw new ExecutionException("Failed to delete service: " + nsServiceName + " due to " + apiCallResult.message);
                                        }
                                    }
                                    // delete the server if there is no associated services
                                    final server_service_binding[] services = server_service_binding.get(_netscalerService, nsServerName);
                                    if (services == null || services.length == 0) {
                                        apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.server.delete(_netscalerService, nsServerName);
                                        if (apiCallResult.errorcode != 0) {
                                            throw new ExecutionException("Failed to remove server:" + nsServerName + " due to " + apiCallResult.message);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            } else {
                // delete the implemented load balancing rule and its destinations
                final lbvserver lbserver = getVirtualServerIfExisits(nsVirtualServerName);
                if (lbserver != null) {
                    //unbind the all services associated with this virtual server
                    final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding[] serviceBindings = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.get(_netscalerService, nsVirtualServerName);
                    if (serviceBindings != null) {
                        for (final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding binding : serviceBindings) {
                            final String serviceName = binding.get_servicename();
                            apiCallResult = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.delete(_netscalerService, binding);
                            if (apiCallResult.errorcode != 0) {
                                throw new ExecutionException("Failed to unbind service from the lb virtual server: " + nsVirtualServerName + " due to " + apiCallResult.message);
                            }
                            final com.citrix.netscaler.nitro.resource.config.basic.service svc = com.citrix.netscaler.nitro.resource.config.basic.service.get(_netscalerService, serviceName);
                            final String nsServerName = svc.get_servername();
                            // check if service is bound to any other virtual server
                            if (!isServiceBoundToVirtualServer(serviceName)) {
                                // no lb virtual servers are bound to this service so delete it
                                apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.service.delete(_netscalerService, serviceName);
                                if (apiCallResult.errorcode != 0) {
                                    throw new ExecutionException("Failed to delete service: " + serviceName + " due to " + apiCallResult.message);
                                }
                            }
                            //delete the server if no more services attached
                            final server_service_binding[] services = server_service_binding.get(_netscalerService, nsServerName);
                            if (services == null || services.length == 0) {
                                apiCallResult = com.citrix.netscaler.nitro.resource.config.basic.server.delete(_netscalerService, nsServerName);
                                if (apiCallResult.errorcode != 0) {
                                    throw new ExecutionException("Failed to remove server:" + nsServerName + " due to " + apiCallResult.message);
                                }
                            }
                        }
                    }
                    removeLBVirtualServer(nsVirtualServerName);
                    deleteMonitor = true;
                    deleteCert = true;
                }
            }
            if (deleteMonitor) {
                removeLBMonitor(nsMonitorName);
            }
            if (sslCert != null && deleteCert) {
                //netscaler uses ".pem" format for "bundle" files
                final String certFilename = generateSslCertName(sslCert.getFingerprint()) + ".pem";
                //netscaler uses ".pem" format for "bundle" files
                final String keyFilename = generateSslKeyName(sslCert.getFingerprint()) + ".pem";
                final String certKeyName = generateSslCertKeyName(sslCert.getFingerprint());
                // unbind before deleting
                if (nsVirtualServerExists(nsVirtualServerName) && SSL.isSslCertKeyPresent(_netscalerService, certKeyName) && SSL.isBoundToVserver(_netscalerService, certKeyName, nsVirtualServerName)) {
                    SSL.unbindCertKeyFromVserver(_netscalerService, certKeyName, nsVirtualServerName);
                }
                if (SSL.isSslCertKeyPresent(_netscalerService, certKeyName)) {
                    SSL.deleteSslCertKey(_netscalerService, certKeyName);
                    SSL.deleteCertFile(_ip, _username, _password, certFilename);
                    SSL.deleteKeyFile(_ip, _username, _password, keyFilename);
                }
                if (sslCert.getChain() != null) {
                    final List<Certificate> chainList = CertificateHelper.parseChain(sslCert.getChain());
                    //go from intermediate CAs to ROOT
                    for (final Certificate intermediateCert : chainList) {
                        final String fingerPrint = CertificateHelper.generateFingerPrint(intermediateCert);
                        final String intermediateCertKeyName = generateSslCertKeyName(fingerPrint);
                        final String intermediateCertFileName = intermediateCertKeyName + ".pem";
                        if (SSL.isSslCertKeyPresent(_netscalerService, intermediateCertKeyName) && !SSL.isCaforCerts(_netscalerService, intermediateCertKeyName)) {
                            SSL.deleteSslCertKey(_netscalerService, intermediateCertKeyName);
                            SSL.deleteCertFile(_ip, _username, _password, intermediateCertFileName);
                        } else {
                            // if this cert has another certificate as a child then stop at this point because we need the whole chain
                            break;
                        }
                    }
                }
            }
        }
        if (s_logger.isInfoEnabled()) {
            s_logger.info("Successfully executed resource LoadBalancerConfigCommand: " + _gson.toJson(cmd));
        }
        saveConfiguration();
        return new Answer(cmd);
    } catch (final ExecutionException e) {
        s_logger.error("Failed to execute LoadBalancerConfigCommand due to ", e);
        if (shouldRetry(numRetries)) {
            return retry(cmd, numRetries);
        } else {
            return new Answer(cmd, e);
        }
    } catch (final Exception e) {
        s_logger.error("Failed to execute LoadBalancerConfigCommand due to ", e);
        if (shouldRetry(numRetries)) {
            return retry(cmd, numRetries);
        } else {
            return new Answer(cmd, e);
        }
    }
}

Example 3 with DestinationTO

use of com.cloud.agent.api.to.LoadBalancerTO.DestinationTO in project cloudstack by apache.

the class NetscalerResource method execute.

private Answer execute(final HealthCheckLBConfigCommand cmd, final int numRetries) {
    final List<LoadBalancerTO> hcLB = new ArrayList<LoadBalancerTO>();
    try {
        if (_isSdx) {
            return Answer.createUnsupportedCommandAnswer(cmd);
        }
        final LoadBalancerTO[] loadBalancers = cmd.getLoadBalancers();
        if (loadBalancers == null) {
            return new HealthCheckLBConfigAnswer(hcLB);
        }
        for (final LoadBalancerTO loadBalancer : loadBalancers) {
            final HealthCheckPolicyTO[] healthCheckPolicies = loadBalancer.getHealthCheckPolicies();
            if (healthCheckPolicies != null && healthCheckPolicies.length > 0 && healthCheckPolicies[0] != null) {
                final String nsVirtualServerName = generateNSVirtualServerName(loadBalancer.getSrcIp(), loadBalancer.getSrcPort());
                final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding[] serviceBindings = com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding.get(_netscalerService, nsVirtualServerName);
                if (serviceBindings != null) {
                    for (final DestinationTO destination : loadBalancer.getDestinations()) {
                        final String nsServiceName = generateNSServiceName(destination.getDestIp(), destination.getDestPort());
                        for (final com.citrix.netscaler.nitro.resource.config.lb.lbvserver_service_binding binding : serviceBindings) {
                            if (nsServiceName.equalsIgnoreCase(binding.get_servicename())) {
                                destination.setMonitorState(binding.get_curstate());
                                break;
                            }
                        }
                    }
                    hcLB.add(loadBalancer);
                }
            }
        }
    } catch (final ExecutionException e) {
        s_logger.error("Failed to execute HealthCheckLBConfigCommand due to ", e);
        if (shouldRetry(numRetries)) {
            return retry(cmd, numRetries);
        } else {
            return new HealthCheckLBConfigAnswer(hcLB);
        }
    } catch (final Exception e) {
        s_logger.error("Failed to execute HealthCheckLBConfigCommand due to ", e);
        if (shouldRetry(numRetries)) {
            return retry(cmd, numRetries);
        } else {
            return new HealthCheckLBConfigAnswer(hcLB);
        }
    }
    return new HealthCheckLBConfigAnswer(hcLB);
}

Example 4 with DestinationTO

use of com.cloud.agent.api.to.LoadBalancerTO.DestinationTO in project cloudstack by apache.

the class F5BigIpResource method execute.

private synchronized Answer execute(LoadBalancerConfigCommand cmd, int numRetries) {
    try {
        long guestVlanTag = Long.parseLong(cmd.getAccessDetail(NetworkElementCommand.GUEST_VLAN_TAG));
        LoadBalancerTO[] loadBalancers = cmd.getLoadBalancers();
        for (LoadBalancerTO loadBalancer : loadBalancers) {
            boolean inline = loadBalancer.isInline();
            LbProtocol lbProtocol;
            try {
                if (loadBalancer.getProtocol() == null) {
                    lbProtocol = LbProtocol.tcp;
                } else {
                    lbProtocol = LbProtocol.valueOf(loadBalancer.getProtocol());
                }
            } catch (IllegalArgumentException e) {
                throw new ExecutionException("Got invalid protocol: " + loadBalancer.getProtocol());
            }
            LbAlgorithm lbAlgorithm;
            if (loadBalancer.getAlgorithm().equals("roundrobin")) {
                lbAlgorithm = LbAlgorithm.RoundRobin;
            } else if (loadBalancer.getAlgorithm().equals("leastconn")) {
                lbAlgorithm = LbAlgorithm.LeastConn;
            } else {
                throw new ExecutionException("Got invalid algorithm: " + loadBalancer.getAlgorithm());
            }
            String srcIp = inline ? tagAddressWithRouteDomain(loadBalancer.getSrcIp(), guestVlanTag) : loadBalancer.getSrcIp();
            int srcPort = loadBalancer.getSrcPort();
            String virtualServerName = genVirtualServerName(lbProtocol, srcIp, srcPort);
            boolean destinationsToAdd = false;
            for (DestinationTO destination : loadBalancer.getDestinations()) {
                if (!destination.isRevoked()) {
                    destinationsToAdd = true;
                    break;
                }
            }
            // Delete the virtual server with this protocol, source IP, and source port, along with its default pool and all pool members
            deleteVirtualServerAndDefaultPool(virtualServerName);
            if (!loadBalancer.isRevoked() && destinationsToAdd) {
                // Add the pool
                addPool(virtualServerName, lbAlgorithm);
                // Add pool members
                List<String> activePoolMembers = new ArrayList<String>();
                for (DestinationTO destination : loadBalancer.getDestinations()) {
                    if (!destination.isRevoked()) {
                        String destIp = inline ? tagAddressWithRouteDomain(destination.getDestIp(), guestVlanTag) : destination.getDestIp();
                        addPoolMember(virtualServerName, destIp, destination.getDestPort());
                        activePoolMembers.add(destIp + "-" + destination.getDestPort());
                    }
                }
                // Add the virtual server
                addVirtualServer(virtualServerName, lbProtocol, srcIp, srcPort, loadBalancer.getStickinessPolicies());
            }
        }
        saveConfiguration();
        return new Answer(cmd);
    } catch (ExecutionException e) {
        s_logger.error("Failed to execute LoadBalancerConfigCommand due to " + e);
        if (shouldRetry(numRetries)) {
            return retry(cmd, numRetries);
        } else {
            return new Answer(cmd, e);
        }
    }
}