2 * Copyright (c) 2014, 2015 SDN Hub, LLC. and others. All rights reserved.
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
9 package org.opendaylight.ovsdb.openstack.netvirt;
11 import java.net.HttpURLConnection;
12 import java.util.List;
15 import org.opendaylight.neutron.spi.INeutronLoadBalancerCRUD;
16 import org.opendaylight.neutron.spi.INeutronLoadBalancerPoolAware;
17 import org.opendaylight.neutron.spi.INeutronNetworkCRUD;
18 import org.opendaylight.neutron.spi.INeutronPortCRUD;
19 import org.opendaylight.neutron.spi.INeutronSubnetCRUD;
20 import org.opendaylight.neutron.spi.NeutronLoadBalancer;
21 import org.opendaylight.neutron.spi.NeutronLoadBalancerPool;
22 import org.opendaylight.neutron.spi.NeutronLoadBalancerPoolMember;
23 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
24 import org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher;
25 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerConfiguration;
26 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerProvider;
27 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheManager;
28 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
30 import org.osgi.framework.BundleContext;
31 import org.osgi.framework.ServiceReference;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
35 import com.google.common.base.Preconditions;
36 import com.google.common.collect.Lists;
39 * Handle requests for OpenStack Neutron v2.0 LBaaS API calls for
40 * /v2.0/pools . It is possible that each pool spans multiple subnets.
41 * In that case, the user should be creating a separate VIP for each subnet.
44 public class LBaaSPoolHandler extends AbstractHandler
45 implements INeutronLoadBalancerPoolAware, ConfigInterface {
47 private static final Logger LOG = LoggerFactory.getLogger(LBaaSPoolHandler.class);
49 // The implementation for each of these services is resolved by the OSGi Service Manager
50 private volatile INeutronLoadBalancerCRUD neutronLBCache;
51 private volatile INeutronPortCRUD neutronPortCache;
52 private volatile INeutronNetworkCRUD neutronNetworkCache;
53 private volatile INeutronSubnetCRUD neutronSubnetCache;
54 private volatile LoadBalancerProvider loadBalancerProvider;
55 private volatile NodeCacheManager nodeCacheManager;
58 public int canCreateNeutronLoadBalancerPool(NeutronLoadBalancerPool neutronLBPool) {
59 String poolProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
60 if (poolProtocol == null) {
61 return HttpURLConnection.HTTP_BAD_REQUEST;
62 } else if (!(poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_TCP) ||
63 poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
64 poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS))) {
65 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
67 return HttpURLConnection.HTTP_OK;
72 public void neutronLoadBalancerPoolCreated(NeutronLoadBalancerPool neutronLBPool) {
73 LOG.debug("Neutron LB Pool Creation : {}", neutronLBPool.toString());
74 enqueueEvent(new NorthboundEvent(neutronLBPool, Action.ADD));
78 * Assuming that the pool information is fully populated before this call is made,
79 * we go with creating the LoadBalancerConfiguration object for this call with
80 * all information that is necessary to insert flow_mods
82 private void doNeutronLoadBalancerPoolCreate(NeutronLoadBalancerPool neutronLBPool) {
83 Preconditions.checkNotNull(loadBalancerProvider);
84 List<LoadBalancerConfiguration> lbConfigList = extractLBConfiguration(neutronLBPool);
85 final List<Node> nodes = nodeCacheManager.getBridgeNodes();
86 if (lbConfigList == null) {
87 LOG.debug("Neutron LB configuration invalid for pool {} ", neutronLBPool.getLoadBalancerPoolID());
88 } else if (lbConfigList.size() == 0) {
89 LOG.debug("No Neutron LB VIP not created yet for pool {} ", neutronLBPool.getLoadBalancerPoolID());
90 } else if (nodes.isEmpty()) {
91 LOG.debug("Noop with LB pool {} creation because no nodes available.", neutronLBPool.getLoadBalancerPoolID());
93 for (LoadBalancerConfiguration lbConfig: lbConfigList) {
94 if (!lbConfig.isValid()) {
95 LOG.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
97 for (Node node : nodes) {
98 loadBalancerProvider.programLoadBalancerRules(node, lbConfig, Action.ADD);
106 public int canUpdateNeutronLoadBalancerPool(NeutronLoadBalancerPool delta, NeutronLoadBalancerPool original) {
107 return HttpURLConnection.HTTP_NOT_IMPLEMENTED;
111 public void neutronLoadBalancerPoolUpdated(NeutronLoadBalancerPool neutronLBPool) {
112 LOG.debug("Neutron LB Pool Update : {}", neutronLBPool.toString());
113 enqueueEvent(new NorthboundEvent(neutronLBPool, Action.UPDATE));
117 public int canDeleteNeutronLoadBalancerPool(NeutronLoadBalancerPool neutronLBPool) {
118 String poolProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
119 if (poolProtocol == null) {
120 return HttpURLConnection.HTTP_BAD_REQUEST;
121 } else if (!(poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_TCP) ||
122 poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
123 poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS))) {
124 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
126 return HttpURLConnection.HTTP_OK;
131 public void neutronLoadBalancerPoolDeleted(NeutronLoadBalancerPool neutronLBPool) {
132 LOG.debug("Neutron LB Pool Deletion : {}", neutronLBPool.toString());
133 enqueueEvent(new NorthboundEvent(neutronLBPool, Action.DELETE));
136 private void doNeutronLoadBalancerPoolDelete(NeutronLoadBalancerPool neutronLBPool) {
137 Preconditions.checkNotNull(loadBalancerProvider);
139 List<LoadBalancerConfiguration> lbConfigList = extractLBConfiguration(neutronLBPool);
140 final List<Node> nodes = nodeCacheManager.getBridgeNodes();
141 if (lbConfigList == null) {
142 LOG.debug("Neutron LB configuration invalid for pool {} ", neutronLBPool.getLoadBalancerPoolID());
143 } else if (lbConfigList.size() == 0) {
144 LOG.debug("No Neutron LB VIP not created yet for pool {} ", neutronLBPool.getLoadBalancerPoolID());
145 } else if (nodes.isEmpty()) {
146 LOG.debug("Noop with LB pool {} deletion because no nodes available.", neutronLBPool.getLoadBalancerPoolID());
148 for (LoadBalancerConfiguration lbConfig: lbConfigList) {
149 if (!lbConfig.isValid()) {
150 LOG.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
152 for (Node node : nodes) {
153 loadBalancerProvider.programLoadBalancerRules(node, lbConfig, Action.DELETE);
163 * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
164 * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
167 public void processEvent(AbstractEvent abstractEvent) {
168 LOG.debug("Processing Loadbalancer Pool event {}", abstractEvent);
169 if (!(abstractEvent instanceof NorthboundEvent)) {
170 LOG.error("Unable to process abstract event {}", abstractEvent);
173 NorthboundEvent ev = (NorthboundEvent) abstractEvent;
174 switch (ev.getAction()) {
176 doNeutronLoadBalancerPoolCreate(ev.getLoadBalancerPool());
179 doNeutronLoadBalancerPoolDelete(ev.getLoadBalancerPool());
183 * Typical upgrade involves changing algorithm. Right now
184 * we do not support this flexibility. TODO
186 LOG.warn("Load balancer pool update is not supported");
189 LOG.warn("Unable to process event action {}", ev.getAction());
195 * Useful utility for extracting the loadbalancer instance. With
196 * each LB pool, we allow multiple VIP and LB to be instantiated.
198 public List<LoadBalancerConfiguration> extractLBConfiguration(NeutronLoadBalancerPool neutronLBPool) {
199 String poolProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
200 if (poolProtocol == null) {
203 if (!(poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
204 poolProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS))) {
208 List<NeutronLoadBalancerPoolMember> poolMembers = neutronLBPool.getLoadBalancerPoolMembers();
209 if (poolMembers.size() == 0) {
210 LOG.debug("Neutron LB pool is empty: {}", neutronLBPool);
214 List<LoadBalancerConfiguration> lbConfigList = Lists.newLinkedList();
216 /* Iterate over all the Loadbalancers created so far and identify VIP
218 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
219 String loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
220 String loadBalancerName = neutronLB.getLoadBalancerName();
221 String loadBalancerVip = neutronLB.getLoadBalancerVipAddress();
223 LoadBalancerConfiguration lbConfig = new LoadBalancerConfiguration(loadBalancerName, loadBalancerVip);
224 Map.Entry<String,String> providerInfo = NeutronCacheUtils.getProviderInformation(neutronNetworkCache, neutronSubnetCache, loadBalancerSubnetID);
225 if (providerInfo != null) {
226 lbConfig.setProviderNetworkType(providerInfo.getKey());
227 lbConfig.setProviderSegmentationId(providerInfo.getValue());
229 lbConfig.setVmac(NeutronCacheUtils.getMacAddress(neutronPortCache, loadBalancerSubnetID, loadBalancerVip));
231 /* Iterate over all the members in this pool and find those in same
232 * subnet as the VIP. Those will be included in the lbConfigList
234 String memberSubnetID, memberIP, memberID, memberMAC;
236 Boolean memberAdminStateIsUp;
237 for (NeutronLoadBalancerPoolMember neutronLBPoolMember: neutronLBPool.getLoadBalancerPoolMembers()) {
238 memberAdminStateIsUp = neutronLBPoolMember.getPoolMemberAdminStateIsUp();
239 memberSubnetID = neutronLBPoolMember.getPoolMemberSubnetID();
240 if (memberSubnetID != null && memberAdminStateIsUp != null &&
241 memberSubnetID.equals(loadBalancerSubnetID) && memberAdminStateIsUp) {
242 memberID = neutronLBPoolMember.getPoolMemberID();
243 memberIP = neutronLBPoolMember.getPoolMemberAddress();
244 memberPort = neutronLBPoolMember.getPoolMemberProtoPort();
245 if (memberID == null || memberIP == null || memberPort == null) {
246 LOG.debug("Neutron LB pool member details incomplete: {}", neutronLBPoolMember);
249 memberMAC = NeutronCacheUtils.getMacAddress(neutronPortCache, memberSubnetID, memberIP);
250 if (memberMAC == null) {
253 lbConfig.addMember(memberID, memberIP, memberMAC, poolProtocol, memberPort);
257 if (lbConfig.getMembers().size() > 0) {
258 lbConfigList.add(lbConfig);
266 public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
267 loadBalancerProvider =
268 (LoadBalancerProvider) ServiceHelper.getGlobalInstance(LoadBalancerProvider.class, this);
270 (NodeCacheManager) ServiceHelper.getGlobalInstance(NodeCacheManager.class, this);
272 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
273 eventDispatcher.eventHandlerAdded(
274 bundleContext.getServiceReference(INeutronLoadBalancerPoolAware.class.getName()), this);
278 public void setDependencies(Object impl) {
279 if (impl instanceof INeutronNetworkCRUD) {
280 neutronNetworkCache = (INeutronNetworkCRUD)impl;
281 } else if (impl instanceof INeutronPortCRUD) {
282 neutronPortCache = (INeutronPortCRUD)impl;
283 } else if (impl instanceof INeutronSubnetCRUD) {
284 neutronSubnetCache = (INeutronSubnetCRUD)impl;
285 } else if (impl instanceof INeutronLoadBalancerCRUD) {
286 neutronLBCache = (INeutronLoadBalancerCRUD)impl;
287 } else if (impl instanceof LoadBalancerProvider) {
288 loadBalancerProvider = (LoadBalancerProvider)impl;