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.INeutronLoadBalancerPoolCRUD;
17 import org.opendaylight.neutron.spi.INeutronLoadBalancerPoolMemberAware;
18 import org.opendaylight.neutron.spi.INeutronNetworkCRUD;
19 import org.opendaylight.neutron.spi.INeutronPortCRUD;
20 import org.opendaylight.neutron.spi.INeutronSubnetCRUD;
21 import org.opendaylight.neutron.spi.NeutronLoadBalancer;
22 import org.opendaylight.neutron.spi.NeutronLoadBalancerPool;
23 import org.opendaylight.neutron.spi.NeutronLoadBalancerPoolMember;
24 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
25 import org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher;
26 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerConfiguration;
27 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerProvider;
28 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheManager;
29 import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
31 import org.osgi.framework.BundleContext;
32 import org.osgi.framework.ServiceReference;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
36 import com.google.common.base.Preconditions;
39 * Handle requests for OpenStack Neutron v2.0 LBaaS API calls for
40 * /v2.0/pools/{pool_id}/members
43 public class LBaaSPoolMemberHandler extends AbstractHandler
44 implements INeutronLoadBalancerPoolMemberAware, ConfigInterface {
45 private static final Logger LOG = LoggerFactory.getLogger(LBaaSPoolMemberHandler.class);
47 // The implementation for each of these services is resolved by the OSGi Service Manager
48 private volatile INeutronLoadBalancerPoolCRUD neutronLBPoolCache;
49 private volatile INeutronLoadBalancerCRUD neutronLBCache;
50 private volatile INeutronPortCRUD neutronPortCache;
51 private volatile INeutronNetworkCRUD neutronNetworkCache;
52 private volatile INeutronSubnetCRUD neutronSubnetCache;
53 private volatile LoadBalancerProvider loadBalancerProvider;
54 private volatile NodeCacheManager nodeCacheManager;
57 public int canCreateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
58 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
59 if (lbConfig == null) {
60 return HttpURLConnection.HTTP_BAD_REQUEST;
61 } else if (!lbConfig.isValid()) {
62 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
64 return HttpURLConnection.HTTP_OK;
69 public void neutronLoadBalancerPoolMemberCreated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
70 LOG.debug("Neutron LB Pool Member Creation : {}", neutronLBPoolMember.toString());
71 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.ADD));
75 * Assuming that the pool information is fully populated before this call is made,
76 * we go with creating the LoadBalancerConfiguration object for this call with
77 * all information that is necessary to insert flow_mods
79 private void doNeutronLoadBalancerPoolMemberCreate(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
80 Preconditions.checkNotNull(loadBalancerProvider);
81 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
82 final List<Node> nodes =
83 nodeCacheManager.getBridgeNodes();
84 if (lbConfig == null) {
85 LOG.debug("Neutron LB configuration invalid for member {} ", neutronLBPoolMember.getPoolMemberAddress());
86 } else if (lbConfig.getVip() == null) {
87 LOG.debug("Neutron LB VIP not created yet for member {} ", neutronLBPoolMember.getID());
88 } else if (!lbConfig.isValid()) {
89 LOG.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
90 } else if (nodes.isEmpty()) {
91 LOG.debug("Noop with LB pool member {} creation because no nodes available.", neutronLBPoolMember.getID());
93 for (Node node : nodes) {
94 loadBalancerProvider.programLoadBalancerPoolMemberRules(node,
96 lbConfig.getMembers().get(neutronLBPoolMember.getID()), Action.ADD);
102 public int canUpdateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember delta, NeutronLoadBalancerPoolMember original) {
103 return HttpURLConnection.HTTP_NOT_IMPLEMENTED;
107 public void neutronLoadBalancerPoolMemberUpdated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
108 LOG.debug("Neutron LB Pool Member Update : {}", neutronLBPoolMember.toString());
109 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.UPDATE));
113 public int canDeleteNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
114 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
115 if (lbConfig == null) {
116 return HttpURLConnection.HTTP_BAD_REQUEST;
117 } else if (!lbConfig.isValid()) {
118 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
120 return HttpURLConnection.HTTP_OK;
125 public void neutronLoadBalancerPoolMemberDeleted(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
126 LOG.debug("Neutron LB Pool Member Deletion : {}", neutronLBPoolMember.toString());
127 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.DELETE));
130 private void doNeutronLoadBalancerPoolMemberDelete(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
131 Preconditions.checkNotNull(loadBalancerProvider);
133 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
134 final List<Node> nodes = nodeCacheManager.getBridgeNodes();
135 if (lbConfig == null) {
136 LOG.debug("Neutron LB configuration invalid for member {} ", neutronLBPoolMember.getPoolMemberAddress());
137 } else if (lbConfig.getVip() == null) {
138 LOG.debug("Neutron LB VIP not created yet for member {} ", neutronLBPoolMember.getID());
139 } else if (!lbConfig.isValid()) {
140 LOG.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
141 } else if (nodes.isEmpty()) {
142 LOG.debug("Noop with LB pool member {} deletion because no nodes available.", neutronLBPoolMember.getID());
144 /* As of now, deleting a member involves recomputing member indices.
145 * This is best done through a complete update of the load balancer instance.
147 LoadBalancerConfiguration newLBConfig = new LoadBalancerConfiguration(lbConfig);
148 newLBConfig.removeMember(neutronLBPoolMember.getID());
150 for (Node node : nodes) {
151 loadBalancerProvider.programLoadBalancerRules(node, lbConfig, Action.DELETE);
152 loadBalancerProvider.programLoadBalancerRules(node, newLBConfig, Action.ADD);
160 * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
161 * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
164 public void processEvent(AbstractEvent abstractEvent) {
165 LOG.debug("Processing Loadbalancer member event {}", abstractEvent);
166 if (!(abstractEvent instanceof NorthboundEvent)) {
167 LOG.error("Unable to process abstract event {}", abstractEvent);
170 NorthboundEvent ev = (NorthboundEvent) abstractEvent;
171 switch (ev.getAction()) {
173 doNeutronLoadBalancerPoolMemberCreate(ev.getLoadBalancerPoolMember());
176 doNeutronLoadBalancerPoolMemberDelete(ev.getLoadBalancerPoolMember());
180 * Typical upgrade involves changing weights. Since weights are not
181 * supported yet, updates are not supported either. TODO
183 LOG.warn("Load balancer pool member update is not supported");
186 LOG.warn("Unable to process event action {}", ev.getAction());
192 * Useful utility for extracting the loadbalancer instance
193 * configuration from the neutron LB cache based on member info
195 public LoadBalancerConfiguration extractLBConfiguration(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
196 String memberID = neutronLBPoolMember.getID();
197 String memberIP = neutronLBPoolMember.getPoolMemberAddress();
198 String memberSubnetID = neutronLBPoolMember.getPoolMemberSubnetID();
199 Integer memberPort = neutronLBPoolMember.getPoolMemberProtoPort();
200 String memberPoolID = neutronLBPoolMember.getPoolID();
202 if (memberSubnetID == null || memberID == null || memberPoolID == null) {
203 LOG.debug("Neutron LB pool member details incomplete [id={}, pool_id={},subnet_id={}",
204 memberID, memberPoolID, memberSubnetID);
207 String memberMAC = NeutronCacheUtils.getMacAddress(neutronPortCache, memberSubnetID, memberIP);
208 if (memberMAC == null) {
209 LOG.debug("Neutron LB pool member {} MAC address unavailable", memberID);
212 NeutronLoadBalancerPool neutronLBPool = neutronLBPoolCache.getNeutronLoadBalancerPool(memberPoolID);
213 String memberProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
214 if (!(memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_TCP) ||
215 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
216 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS))) {
220 String loadBalancerSubnetID=null, loadBalancerVip=null, loadBalancerName=null;
221 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
222 loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
223 if (memberSubnetID.equals(loadBalancerSubnetID)) {
224 loadBalancerName = neutronLB.getLoadBalancerName();
225 loadBalancerVip = neutronLB.getLoadBalancerVipAddress();
231 * It is possible that the VIP has not been created yet.
232 * In that case, we create dummy configuration that will not program rules.
234 LoadBalancerConfiguration lbConfig = new LoadBalancerConfiguration(loadBalancerName, loadBalancerVip);
235 Map.Entry<String,String> providerInfo = NeutronCacheUtils.getProviderInformation(neutronNetworkCache, neutronSubnetCache, memberSubnetID);
236 if (providerInfo != null) {
237 lbConfig.setProviderNetworkType(providerInfo.getKey());
238 lbConfig.setProviderSegmentationId(providerInfo.getValue());
240 lbConfig.setVmac(NeutronCacheUtils.getMacAddress(neutronPortCache, loadBalancerSubnetID, loadBalancerVip));
242 /* Extract all other active members and include in LB config
244 String otherMemberID, otherMemberSubnetID, otherMemberIP, otherMemberMAC, otherMemberProtocol;
245 Boolean otherMemberAdminStateIsUp;
246 Integer otherMemberPort;
248 for (NeutronLoadBalancerPoolMember otherMember: neutronLBPool.getLoadBalancerPoolMembers()) {
249 otherMemberID = otherMember.getID();
250 if (otherMemberID.equals(memberID)) {
254 otherMemberIP = otherMember.getPoolMemberAddress();
255 otherMemberAdminStateIsUp = otherMember.getPoolMemberAdminStateIsUp();
256 otherMemberSubnetID = otherMember.getPoolMemberSubnetID();
257 otherMemberPort = otherMember.getPoolMemberProtoPort();
258 otherMemberProtocol = memberProtocol;
260 if (otherMemberIP != null && otherMemberSubnetID != null && otherMemberAdminStateIsUp != null &&
261 otherMemberAdminStateIsUp) {
262 otherMemberMAC = NeutronCacheUtils.getMacAddress(neutronPortCache, otherMemberSubnetID, otherMemberIP);
263 if (otherMemberMAC == null) {
266 lbConfig.addMember(otherMemberID, otherMemberIP, otherMemberMAC, otherMemberProtocol, otherMemberPort);
270 lbConfig.addMember(memberID, memberIP, memberMAC, memberProtocol, memberPort);
275 public void setDependencies(BundleContext bundleContext, ServiceReference serviceReference) {
276 loadBalancerProvider =
277 (LoadBalancerProvider) ServiceHelper.getGlobalInstance(LoadBalancerProvider.class, this);
279 (NodeCacheManager) ServiceHelper.getGlobalInstance(NodeCacheManager.class, this);
281 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
282 eventDispatcher.eventHandlerAdded(
283 bundleContext.getServiceReference(INeutronLoadBalancerPoolMemberAware.class.getName()), this);
287 public void setDependencies(Object impl) {
288 if (impl instanceof INeutronNetworkCRUD) {
289 neutronNetworkCache = (INeutronNetworkCRUD)impl;
290 } else if (impl instanceof INeutronPortCRUD) {
291 neutronPortCache = (INeutronPortCRUD)impl;
292 } else if (impl instanceof INeutronSubnetCRUD) {
293 neutronSubnetCache = (INeutronSubnetCRUD)impl;
294 } else if (impl instanceof INeutronLoadBalancerCRUD) {
295 neutronLBCache = (INeutronLoadBalancerCRUD)impl;
296 } else if (impl instanceof INeutronLoadBalancerPoolCRUD) {
297 neutronLBPoolCache = (INeutronLoadBalancerPoolCRUD)impl;
298 } else if (impl instanceof LoadBalancerProvider) {
299 loadBalancerProvider = (LoadBalancerProvider)impl;