2 * Copyright (C) 2014 SDN Hub, LLC.
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
8 * Authors : Srini Seetharaman
11 package org.opendaylight.ovsdb.openstack.netvirt;
13 import org.opendaylight.neutron.spi.INeutronLoadBalancerCRUD;
14 import org.opendaylight.neutron.spi.INeutronLoadBalancerPoolCRUD;
15 import org.opendaylight.neutron.spi.INeutronLoadBalancerPoolMemberAware;
16 import org.opendaylight.neutron.spi.INeutronNetworkCRUD;
17 import org.opendaylight.neutron.spi.INeutronPortCRUD;
18 import org.opendaylight.neutron.spi.INeutronSubnetCRUD;
19 import org.opendaylight.neutron.spi.NeutronLoadBalancer;
20 import org.opendaylight.neutron.spi.NeutronLoadBalancerPool;
21 import org.opendaylight.neutron.spi.NeutronLoadBalancerPoolMember;
22 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
23 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerConfiguration;
24 import org.opendaylight.ovsdb.openstack.netvirt.api.LoadBalancerProvider;
25 import org.opendaylight.ovsdb.openstack.netvirt.api.NodeCacheManager;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 import com.google.common.base.Preconditions;
32 import java.net.HttpURLConnection;
33 import java.util.List;
37 * Handle requests for OpenStack Neutron v2.0 LBaaS API calls for
38 * /v2.0/pools/{pool_id}/members
41 public class LBaaSPoolMemberHandler extends AbstractHandler
42 implements INeutronLoadBalancerPoolMemberAware {
44 private static final Logger logger = LoggerFactory.getLogger(LBaaSPoolMemberHandler.class);
46 // The implementation for each of these services is resolved by the OSGi Service Manager
47 private volatile INeutronLoadBalancerPoolCRUD neutronLBPoolCache;
48 private volatile INeutronLoadBalancerCRUD neutronLBCache;
49 private volatile INeutronPortCRUD neutronPortsCache;
50 private volatile INeutronNetworkCRUD neutronNetworkCache;
51 private volatile INeutronSubnetCRUD neutronSubnetCache;
52 private volatile LoadBalancerProvider loadBalancerProvider;
53 private volatile NodeCacheManager nodeCacheManager;
56 public int canCreateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
57 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
59 return HttpURLConnection.HTTP_BAD_REQUEST;
60 else if (!lbConfig.isValid())
61 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
63 return HttpURLConnection.HTTP_OK;
67 public void neutronLoadBalancerPoolMemberCreated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
68 logger.debug("Neutron LB Pool Member Creation : {}", neutronLBPoolMember.toString());
69 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.ADD));
73 * Assuming that the pool information is fully populated before this call is made,
74 * we go with creating the LoadBalancerConfiguration object for this call with
75 * all information that is necessary to insert flow_mods
77 private void doNeutronLoadBalancerPoolMemberCreate(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
78 Preconditions.checkNotNull(loadBalancerProvider);
79 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
80 final List<Node> nodes = nodeCacheManager.getNodes();
81 if (lbConfig == null) {
82 logger.debug("Neutron LB configuration invalid for member {} ", neutronLBPoolMember.getPoolMemberAddress());
83 } else if (lbConfig.getVip() == null) {
84 logger.debug("Neutron LB VIP not created yet for member {} ", neutronLBPoolMember.getPoolMemberID());
85 } else if (!lbConfig.isValid()) {
86 logger.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
87 } else if (nodes.isEmpty()) {
88 logger.debug("Noop with LB pool member {} creation because no nodes available.", neutronLBPoolMember.getPoolMemberID());
90 for (Node node : nodes)
91 loadBalancerProvider.programLoadBalancerPoolMemberRules(node,
93 lbConfig.getMembers().get(neutronLBPoolMember.getPoolMemberID()), Action.ADD);
98 public int canUpdateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember delta, NeutronLoadBalancerPoolMember original) {
99 return HttpURLConnection.HTTP_NOT_IMPLEMENTED;
103 public void neutronLoadBalancerPoolMemberUpdated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
104 logger.debug("Neutron LB Pool Member Update : {}", neutronLBPoolMember.toString());
105 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.UPDATE));
109 public int canDeleteNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
110 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
111 if (lbConfig == null)
112 return HttpURLConnection.HTTP_BAD_REQUEST;
113 else if (!lbConfig.isValid())
114 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
116 return HttpURLConnection.HTTP_OK;
120 public void neutronLoadBalancerPoolMemberDeleted(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
121 logger.debug("Neutron LB Pool Member Deletion : {}", neutronLBPoolMember.toString());
122 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.DELETE));
125 private void doNeutronLoadBalancerPoolMemberDelete(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
126 Preconditions.checkNotNull(loadBalancerProvider);
128 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
129 final List<Node> nodes = nodeCacheManager.getNodes();
130 if (lbConfig == null) {
131 logger.debug("Neutron LB configuration invalid for member {} ", neutronLBPoolMember.getPoolMemberAddress());
132 } else if (lbConfig.getVip() == null) {
133 logger.debug("Neutron LB VIP not created yet for member {} ", neutronLBPoolMember.getPoolMemberID());
134 } else if (!lbConfig.isValid()) {
135 logger.debug("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
136 } else if (nodes.isEmpty()) {
137 logger.debug("Noop with LB pool member {} deletion because no nodes available.", neutronLBPoolMember.getPoolMemberID());
139 /* As of now, deleting a member involves recomputing member indices.
140 * This is best done through a complete update of the load balancer instance.
142 LoadBalancerConfiguration newLBConfig = new LoadBalancerConfiguration(lbConfig);
143 newLBConfig.removeMember(neutronLBPoolMember.getPoolMemberID());
145 for (Node node : nodes) {
146 loadBalancerProvider.programLoadBalancerRules(node, lbConfig, Action.DELETE);
147 loadBalancerProvider.programLoadBalancerRules(node, newLBConfig, Action.ADD);
155 * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
156 * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
159 public void processEvent(AbstractEvent abstractEvent) {
160 logger.debug("Processing Loadbalancer member event " + abstractEvent);
161 if (!(abstractEvent instanceof NorthboundEvent)) {
162 logger.error("Unable to process abstract event " + abstractEvent);
165 NorthboundEvent ev = (NorthboundEvent) abstractEvent;
166 switch (ev.getAction()) {
168 doNeutronLoadBalancerPoolMemberCreate(ev.getLoadBalancerPoolMember());
171 doNeutronLoadBalancerPoolMemberDelete(ev.getLoadBalancerPoolMember());
175 * Typical upgrade involves changing weights. Since weights are not
176 * supported yet, updates are not supported either. TODO
178 logger.warn("Load balancer pool member update is not supported");
181 logger.warn("Unable to process event action " + ev.getAction());
187 * Useful utility for extracting the loadbalancer instance
188 * configuration from the neutron LB cache based on member info
190 public LoadBalancerConfiguration extractLBConfiguration(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
191 String memberID = neutronLBPoolMember.getPoolMemberID();
192 String memberIP = neutronLBPoolMember.getPoolMemberAddress();
193 String memberSubnetID = neutronLBPoolMember.getPoolMemberSubnetID();
194 Integer memberPort = neutronLBPoolMember.getPoolMemberProtoPort();
195 String memberPoolID = neutronLBPoolMember.getPoolID();
196 String memberProtocol = null;
198 if (memberSubnetID == null || memberID == null || memberPoolID == null) {
199 logger.debug("Neutron LB pool member details incomplete [id={}, pool_id={},subnet_id={}",
200 memberID, memberPoolID, memberSubnetID);
203 String memberMAC = NeutronCacheUtils.getMacAddress(neutronPortsCache, memberSubnetID, memberIP);
204 if (memberMAC == null) {
205 logger.debug("Neutron LB pool member {} MAC address unavailable", memberID);
208 NeutronLoadBalancerPool neutronLBPool = neutronLBPoolCache.getNeutronLoadBalancerPool(memberPoolID);
209 memberProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
210 if (!(memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_TCP) ||
211 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
212 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS)))
215 String loadBalancerSubnetID=null, loadBalancerVip=null, loadBalancerName=null;
216 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
217 loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
218 if (memberSubnetID.equals(loadBalancerSubnetID)) {
219 loadBalancerName = neutronLB.getLoadBalancerName();
220 loadBalancerVip = neutronLB.getLoadBalancerVipAddress();
226 * It is possible that the VIP has not been created yet.
227 * In that case, we create dummy configuration that will not program rules.
229 LoadBalancerConfiguration lbConfig = new LoadBalancerConfiguration(loadBalancerName, loadBalancerVip);
230 Map.Entry<String,String> providerInfo = NeutronCacheUtils.getProviderInformation(neutronNetworkCache, neutronSubnetCache, memberSubnetID);
231 if (providerInfo != null) {
232 lbConfig.setProviderNetworkType(providerInfo.getKey());
233 lbConfig.setProviderSegmentationId(providerInfo.getValue());
235 lbConfig.setVmac(NeutronCacheUtils.getMacAddress(neutronPortsCache, loadBalancerSubnetID, loadBalancerVip));
237 /* Extract all other active members and include in LB config
239 String otherMemberID, otherMemberSubnetID, otherMemberIP, otherMemberMAC, otherMemberProtocol;
240 Boolean otherMemberAdminStateIsUp;
241 Integer otherMemberPort;
243 for (NeutronLoadBalancerPoolMember otherMember: neutronLBPool.getLoadBalancerPoolMembers()) {
244 otherMemberID = otherMember.getPoolMemberID();
245 if (otherMemberID.equals(memberID))
248 otherMemberIP = otherMember.getPoolMemberAddress();
249 otherMemberAdminStateIsUp = otherMember.getPoolMemberAdminStateIsUp();
250 otherMemberSubnetID = otherMember.getPoolMemberSubnetID();
251 otherMemberPort = otherMember.getPoolMemberProtoPort();
252 otherMemberProtocol = memberProtocol;
254 if (otherMemberIP == null || otherMemberSubnetID == null || otherMemberAdminStateIsUp == null)
256 else if (otherMemberAdminStateIsUp.booleanValue()) {
257 otherMemberMAC = NeutronCacheUtils.getMacAddress(neutronPortsCache, otherMemberSubnetID, otherMemberIP);
258 if (otherMemberMAC == null)
260 lbConfig.addMember(otherMemberID, otherMemberIP, otherMemberMAC, otherMemberProtocol, otherMemberPort);
264 lbConfig.addMember(memberID, memberIP, memberMAC, memberProtocol, memberPort);