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.ovsdb.openstack.netvirt.translator.NeutronLoadBalancer;
16 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronLoadBalancerPool;
17 import org.opendaylight.ovsdb.openstack.netvirt.translator.NeutronLoadBalancerPoolMember;
18 import org.opendaylight.ovsdb.openstack.netvirt.translator.crud.INeutronLoadBalancerCRUD;
19 import org.opendaylight.ovsdb.openstack.netvirt.translator.crud.INeutronLoadBalancerPoolCRUD;
20 import org.opendaylight.ovsdb.openstack.netvirt.translator.crud.INeutronNetworkCRUD;
21 import org.opendaylight.ovsdb.openstack.netvirt.translator.crud.INeutronPortCRUD;
22 import org.opendaylight.ovsdb.openstack.netvirt.translator.crud.INeutronSubnetCRUD;
23 import org.opendaylight.ovsdb.openstack.netvirt.translator.iaware.INeutronLoadBalancerPoolMemberAware;
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;
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
194 * @param neutronLBPoolMember Neutron LB pool member object
195 * @return load balancer configuration of the pool member
197 public LoadBalancerConfiguration extractLBConfiguration(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
198 String memberID = neutronLBPoolMember.getID();
199 String memberIP = neutronLBPoolMember.getPoolMemberAddress();
200 String memberSubnetID = neutronLBPoolMember.getPoolMemberSubnetID();
201 Integer memberPort = neutronLBPoolMember.getPoolMemberProtoPort();
202 String memberPoolID = neutronLBPoolMember.getPoolID();
204 if (memberSubnetID == null || memberID == null || memberPoolID == null) {
205 LOG.debug("Neutron LB pool member details incomplete [id={}, pool_id={},subnet_id={}",
206 memberID, memberPoolID, memberSubnetID);
209 String memberMAC = NeutronCacheUtils.getMacAddress(neutronPortCache, memberSubnetID, memberIP);
210 if (memberMAC == null) {
211 LOG.debug("Neutron LB pool member {} MAC address unavailable", memberID);
214 NeutronLoadBalancerPool neutronLBPool = neutronLBPoolCache.getNeutronLoadBalancerPool(memberPoolID);
215 String memberProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
216 if (!(memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_TCP) ||
217 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
218 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS))) {
222 String loadBalancerSubnetID=null, loadBalancerVip=null, loadBalancerName=null;
223 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
224 loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
225 if (memberSubnetID.equals(loadBalancerSubnetID)) {
226 loadBalancerName = neutronLB.getLoadBalancerName();
227 loadBalancerVip = neutronLB.getLoadBalancerVipAddress();
233 * It is possible that the VIP has not been created yet.
234 * In that case, we create dummy configuration that will not program rules.
236 LoadBalancerConfiguration lbConfig = new LoadBalancerConfiguration(loadBalancerName, loadBalancerVip);
237 Map.Entry<String,String> providerInfo = NeutronCacheUtils.getProviderInformation(neutronNetworkCache, neutronSubnetCache, memberSubnetID);
238 if (providerInfo != null) {
239 lbConfig.setProviderNetworkType(providerInfo.getKey());
240 lbConfig.setProviderSegmentationId(providerInfo.getValue());
242 lbConfig.setVmac(NeutronCacheUtils.getMacAddress(neutronPortCache, loadBalancerSubnetID, loadBalancerVip));
244 /* Extract all other active members and include in LB config
246 String otherMemberID, otherMemberSubnetID, otherMemberIP, otherMemberMAC, otherMemberProtocol;
247 Boolean otherMemberAdminStateIsUp;
248 Integer otherMemberPort;
250 for (NeutronLoadBalancerPoolMember otherMember: neutronLBPool.getLoadBalancerPoolMembers()) {
251 otherMemberID = otherMember.getID();
252 if (otherMemberID.equals(memberID)) {
256 otherMemberIP = otherMember.getPoolMemberAddress();
257 otherMemberAdminStateIsUp = otherMember.getPoolMemberAdminStateIsUp();
258 otherMemberSubnetID = otherMember.getPoolMemberSubnetID();
259 otherMemberPort = otherMember.getPoolMemberProtoPort();
260 otherMemberProtocol = memberProtocol;
262 if (otherMemberIP != null && otherMemberSubnetID != null && otherMemberAdminStateIsUp != null &&
263 otherMemberAdminStateIsUp) {
264 otherMemberMAC = NeutronCacheUtils.getMacAddress(neutronPortCache, otherMemberSubnetID, otherMemberIP);
265 if (otherMemberMAC == null) {
268 lbConfig.addMember(otherMemberID, otherMemberIP, otherMemberMAC, otherMemberProtocol, otherMemberPort);
272 lbConfig.addMember(memberID, memberIP, memberMAC, memberProtocol, memberPort);
277 public void setDependencies(ServiceReference serviceReference) {
278 loadBalancerProvider =
279 (LoadBalancerProvider) ServiceHelper.getGlobalInstance(LoadBalancerProvider.class, this);
281 (NodeCacheManager) ServiceHelper.getGlobalInstance(NodeCacheManager.class, this);
283 (EventDispatcher) ServiceHelper.getGlobalInstance(EventDispatcher.class, this);
284 eventDispatcher.eventHandlerAdded(serviceReference, this);
288 public void setDependencies(Object impl) {
289 if (impl instanceof INeutronNetworkCRUD) {
290 neutronNetworkCache = (INeutronNetworkCRUD)impl;
291 } else if (impl instanceof INeutronPortCRUD) {
292 neutronPortCache = (INeutronPortCRUD)impl;
293 } else if (impl instanceof INeutronSubnetCRUD) {
294 neutronSubnetCache = (INeutronSubnetCRUD)impl;
295 } else if (impl instanceof INeutronLoadBalancerCRUD) {
296 neutronLBCache = (INeutronLoadBalancerCRUD)impl;
297 } else if (impl instanceof INeutronLoadBalancerPoolCRUD) {
298 neutronLBPoolCache = (INeutronLoadBalancerPoolCRUD)impl;
299 } else if (impl instanceof LoadBalancerProvider) {
300 loadBalancerProvider = (LoadBalancerProvider)impl;