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.controller.networkconfig.neutron.INeutronLoadBalancerCRUD;
14 import org.opendaylight.controller.networkconfig.neutron.INeutronLoadBalancerPoolCRUD;
15 import org.opendaylight.controller.networkconfig.neutron.INeutronLoadBalancerPoolMemberAware;
16 import org.opendaylight.controller.networkconfig.neutron.INeutronPortCRUD;
17 import org.opendaylight.controller.networkconfig.neutron.NeutronLoadBalancer;
18 import org.opendaylight.controller.networkconfig.neutron.NeutronLoadBalancerPool;
19 import org.opendaylight.controller.networkconfig.neutron.NeutronLoadBalancerPoolMember;
20 import org.opendaylight.controller.sal.core.Node;
21 import org.opendaylight.controller.switchmanager.ISwitchManager;
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.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
28 import com.google.common.base.Preconditions;
30 import java.net.HttpURLConnection;
33 * Handle requests for OpenStack Neutron v2.0 LBaaS API calls for
34 * /v2.0/pools/{pool_id}/members
37 public class LBaaSPoolMemberHandler extends AbstractHandler
38 implements INeutronLoadBalancerPoolMemberAware {
40 private static final Logger logger = LoggerFactory.getLogger(LBaaSPoolMemberHandler.class);
42 // The implementation for each of these services is resolved by the OSGi Service Manager
43 private volatile INeutronLoadBalancerPoolCRUD neutronLBPoolCache;
44 private volatile INeutronLoadBalancerCRUD neutronLBCache;
45 private volatile INeutronPortCRUD neutronPortsCache;
46 private volatile LoadBalancerProvider loadBalancerProvider;
47 private volatile ISwitchManager switchManager;
50 public int canCreateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
51 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
53 return HttpURLConnection.HTTP_BAD_REQUEST;
54 else if (!lbConfig.isValid())
55 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
57 return HttpURLConnection.HTTP_OK;
61 public void neutronLoadBalancerPoolMemberCreated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
62 logger.debug("Neutron LB Pool Member Creation : {}", neutronLBPoolMember.toString());
63 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.ADD));
67 * Assuming that the pool information is fully populated before this call is made,
68 * we go with creating the LoadBalancerConfiguration object for this call with
69 * all information that is necessary to insert flow_mods
71 private void doNeutronLoadBalancerPoolMemberCreate(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
72 Preconditions.checkNotNull(loadBalancerProvider);
73 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
74 if (lbConfig == null) {
75 logger.trace("Neutron LB configuration invalid for member {} ", neutronLBPoolMember.getPoolMemberAddress());
76 } else if (lbConfig.getVip() == null) {
77 logger.trace("Neutron LB VIP not created yet for member {} ", neutronLBPoolMember.getPoolMemberID());
78 } else if (!lbConfig.isValid()) {
79 logger.trace("Neutron LB pool configuration invalid for {} ", lbConfig.getName());
80 } else if (this.switchManager.getNodes().size() == 0) {
81 logger.trace("Noop with LB pool member {} creation because no nodes available.", neutronLBPoolMember.getPoolMemberID());
83 for (Node node: this.switchManager.getNodes())
84 loadBalancerProvider.programLoadBalancerPoolMemberRules(node, lbConfig,
85 lbConfig.getMembers().get(neutronLBPoolMember.getPoolMemberID()), Action.ADD);
90 public int canUpdateNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember delta, NeutronLoadBalancerPoolMember original) {
91 LoadBalancerConfiguration lbConfig = extractLBConfiguration(delta);
93 return HttpURLConnection.HTTP_BAD_REQUEST;
94 else if (!lbConfig.isValid())
95 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
97 return HttpURLConnection.HTTP_OK;
101 public void neutronLoadBalancerPoolMemberUpdated(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
102 logger.debug("Neutron LB Pool Member Update : {}", neutronLBPoolMember.toString());
103 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.UPDATE));
107 public int canDeleteNeutronLoadBalancerPoolMember(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
108 LoadBalancerConfiguration lbConfig = extractLBConfiguration(neutronLBPoolMember);
109 if (lbConfig == null)
110 return HttpURLConnection.HTTP_BAD_REQUEST;
111 else if (!lbConfig.isValid())
112 return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
114 return HttpURLConnection.HTTP_OK;
118 public void neutronLoadBalancerPoolMemberDeleted(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
119 logger.debug("Neutron LB Pool Member Deletion : {}", neutronLBPoolMember.toString());
120 enqueueEvent(new NorthboundEvent(neutronLBPoolMember, Action.DELETE));
126 * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
127 * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
130 public void processEvent(AbstractEvent abstractEvent) {
131 if (!(abstractEvent instanceof NorthboundEvent)) {
132 logger.error("Unable to process abstract event " + abstractEvent);
135 NorthboundEvent ev = (NorthboundEvent) abstractEvent;
136 switch (ev.getAction()) {
138 doNeutronLoadBalancerPoolMemberCreate(ev.getLoadBalancerPoolMember());
141 /* As of now, deleting a member involves recomputing member indices.
142 * This is best done through a complete update of the load balancer instance.
144 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
145 String loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
146 if (ev.getLoadBalancerPoolMember()
147 .getPoolMemberSubnetID().equals(loadBalancerSubnetID)) {
148 enqueueEvent(new NorthboundEvent(neutronLB, Action.UPDATE));
155 * Typical upgrade involves changing weights. Since weights are not
156 * supported yet, updates are not supported either.
158 logger.warn("Load balancer pool member update is not supported");
161 logger.warn("Unable to process event action " + ev.getAction());
167 * Useful utility for extracting the loadbalancer instance
168 * configuration from the neutron LB cache based on member info
170 public LoadBalancerConfiguration extractLBConfiguration(NeutronLoadBalancerPoolMember neutronLBPoolMember) {
171 String memberID = neutronLBPoolMember.getPoolMemberID();
172 String memberIP = neutronLBPoolMember.getPoolMemberAddress();
173 String memberMAC = NeutronCacheUtils.getMacAddress(neutronPortsCache, memberIP);
174 if (memberMAC == null) {
175 logger.trace("Neutron LB pool member {} MAC address unavailable", memberID);
178 String memberSubnetID = neutronLBPoolMember.getPoolMemberSubnetID();
179 Integer memberPort = neutronLBPoolMember.getPoolMemberProtoPort();
180 String memberPoolID = neutronLBPoolMember.getPoolID();
181 String memberProtocol = null;
183 if (memberSubnetID == null || memberID == null || memberPoolID == null) {
184 logger.trace("Neutron LB pool member details incomplete [id={}, pool_id={},subnet_id={}",
185 memberID, memberPoolID, memberSubnetID);
188 NeutronLoadBalancerPool neutronLBPool = neutronLBPoolCache.getNeutronLoadBalancerPool(memberPoolID);
189 memberProtocol = neutronLBPool.getLoadBalancerPoolProtocol();
190 if (!(memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTP) ||
191 memberProtocol.equalsIgnoreCase(LoadBalancerConfiguration.PROTOCOL_HTTPS)))
194 String loadBalancerSubnetID, loadBalancerVip=null, loadBalancerName=null;
195 for (NeutronLoadBalancer neutronLB: neutronLBCache.getAllNeutronLoadBalancers()) {
196 loadBalancerSubnetID = neutronLB.getLoadBalancerVipSubnetID();
197 if (memberSubnetID.equals(loadBalancerSubnetID)) {
198 loadBalancerName = neutronLB.getLoadBalancerName();
199 loadBalancerVip = neutronLB.getLoadBalancerVipAddress();
204 * It is possible that the VIP has not been created yet.
205 * In that case, we create dummy configuration that will not program rules.
207 LoadBalancerConfiguration lbConfig = new LoadBalancerConfiguration(loadBalancerName, loadBalancerVip);
208 lbConfig.addMember(memberID, memberIP, memberMAC, memberProtocol, memberPort);