Jian Li | 858ccd7 | 2021-02-04 17:25:01 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2021-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.kubevirtnetworking.impl; |
| 17 | |
| 18 | import io.fabric8.kubernetes.api.model.Pod; |
| 19 | import org.onlab.packet.Ethernet; |
| 20 | import org.onlab.packet.Ip4Address; |
| 21 | import org.onlab.packet.IpPrefix; |
| 22 | import org.onosproject.cluster.ClusterService; |
| 23 | import org.onosproject.cluster.LeadershipService; |
| 24 | import org.onosproject.cluster.NodeId; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.core.CoreService; |
| 27 | import org.onosproject.kubevirtnetworking.api.KubevirtFlowRuleService; |
| 28 | import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
| 29 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService; |
| 30 | import org.onosproject.kubevirtnetworking.api.KubevirtPodEvent; |
| 31 | import org.onosproject.kubevirtnetworking.api.KubevirtPodListener; |
| 32 | import org.onosproject.kubevirtnetworking.api.KubevirtPodService; |
| 33 | import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| 34 | import org.onosproject.kubevirtnetworking.api.KubevirtPortService; |
| 35 | import org.onosproject.kubevirtnode.api.KubevirtNode; |
| 36 | import org.onosproject.kubevirtnode.api.KubevirtNodeEvent; |
| 37 | import org.onosproject.kubevirtnode.api.KubevirtNodeListener; |
| 38 | import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| 39 | import org.onosproject.mastership.MastershipService; |
| 40 | import org.onosproject.net.PortNumber; |
| 41 | import org.onosproject.net.device.DeviceService; |
| 42 | import org.onosproject.net.driver.DriverService; |
| 43 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 44 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 45 | import org.onosproject.net.flow.TrafficSelector; |
| 46 | import org.onosproject.net.flow.TrafficTreatment; |
| 47 | import org.osgi.service.component.annotations.Activate; |
| 48 | import org.osgi.service.component.annotations.Component; |
| 49 | import org.osgi.service.component.annotations.Deactivate; |
| 50 | import org.osgi.service.component.annotations.Reference; |
| 51 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 52 | import org.slf4j.Logger; |
| 53 | |
| 54 | import java.util.Objects; |
| 55 | import java.util.concurrent.ExecutorService; |
| 56 | |
| 57 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 58 | import static org.onlab.util.Tools.groupedThreads; |
| 59 | import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
| 60 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_TUNNEL_RULE; |
| 61 | import static org.onosproject.kubevirtnetworking.api.Constants.TUNNEL_DEFAULT_TABLE; |
| 62 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.FLAT; |
Jian Li | 2ce718e | 2021-02-17 20:42:15 +0900 | [diff] [blame] | 63 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.VLAN; |
Jian Li | 858ccd7 | 2021-02-04 17:25:01 +0900 | [diff] [blame] | 64 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getPort; |
| 65 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.tunnelPort; |
| 66 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.tunnelToTenantPort; |
| 67 | import static org.onosproject.kubevirtnetworking.util.RulePopulatorUtil.buildExtension; |
| 68 | import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.MASTER; |
| 69 | import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.WORKER; |
| 70 | import static org.slf4j.LoggerFactory.getLogger; |
| 71 | |
| 72 | /** |
| 73 | * Populates switching flow rules on OVS for the tenant network (overlay). |
| 74 | */ |
| 75 | @Component(immediate = true) |
| 76 | public class KubevirtSwitchingTenantHandler { |
| 77 | private final Logger log = getLogger(getClass()); |
| 78 | |
| 79 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 80 | protected CoreService coreService; |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 82 | protected MastershipService mastershipService; |
| 83 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 84 | protected DeviceService deviceService; |
| 85 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 86 | protected DriverService driverService; |
| 87 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 88 | protected ClusterService clusterService; |
| 89 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 90 | protected LeadershipService leadershipService; |
| 91 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 92 | protected KubevirtFlowRuleService flowRuleService; |
| 93 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 94 | protected KubevirtNodeService kubevirtNodeService; |
| 95 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 96 | protected KubevirtNetworkService kubevirtNetworkService; |
| 97 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 98 | protected KubevirtPortService kubevirtPortService; |
| 99 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 100 | protected KubevirtPodService kubevirtPodService; |
| 101 | |
| 102 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 103 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 104 | |
| 105 | private final InternalKubevirtPodListener kubevirtPodListener = |
| 106 | new InternalKubevirtPodListener(); |
| 107 | private final InternalKubevirtNodeListener kubevirtNodeListener = |
| 108 | new InternalKubevirtNodeListener(); |
| 109 | |
| 110 | private ApplicationId appId; |
| 111 | private NodeId localNodeId; |
| 112 | |
| 113 | @Activate |
| 114 | protected void activate() { |
| 115 | appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| 116 | localNodeId = clusterService.getLocalNode().id(); |
| 117 | leadershipService.runForLeadership(appId.name()); |
| 118 | kubevirtPodService.addListener(kubevirtPodListener); |
| 119 | kubevirtNodeService.addListener(kubevirtNodeListener); |
| 120 | |
| 121 | log.info("Started"); |
| 122 | } |
| 123 | |
| 124 | @Deactivate |
| 125 | protected void deactivate() { |
| 126 | kubevirtPodService.removeListener(kubevirtPodListener); |
| 127 | kubevirtNodeService.removeListener(kubevirtNodeListener); |
| 128 | leadershipService.withdraw(appId.name()); |
| 129 | eventExecutor.shutdown(); |
| 130 | |
| 131 | log.info("Stopped"); |
| 132 | } |
| 133 | |
| 134 | private KubevirtPort getPortByPod(Pod pod) { |
| 135 | return getPort(kubevirtNetworkService.networks(), pod); |
| 136 | } |
| 137 | |
| 138 | private void setIngressRules(Pod pod, boolean install) { |
| 139 | KubevirtPort port = getPortByPod(pod); |
| 140 | |
| 141 | if (port == null) { |
| 142 | return; |
| 143 | } |
| 144 | |
| 145 | if (port.ipAddress() == null) { |
| 146 | return; |
| 147 | } |
| 148 | |
| 149 | KubevirtNetwork network = kubevirtNetworkService.network(port.networkId()); |
| 150 | |
| 151 | if (network == null) { |
| 152 | return; |
| 153 | } |
| 154 | |
Jian Li | 2ce718e | 2021-02-17 20:42:15 +0900 | [diff] [blame] | 155 | if (network.type() == FLAT || network.type() == VLAN) { |
Jian Li | 858ccd7 | 2021-02-04 17:25:01 +0900 | [diff] [blame] | 156 | return; |
| 157 | } |
| 158 | |
| 159 | if (network.segmentId() == null) { |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | KubevirtNode localNode = kubevirtNodeService.node(pod.getSpec().getNodeName()); |
| 164 | if (localNode == null || localNode.type() == MASTER) { |
| 165 | return; |
| 166 | } |
| 167 | |
| 168 | PortNumber patchPortNumber = tunnelToTenantPort(localNode, network); |
| 169 | if (patchPortNumber == null) { |
| 170 | return; |
| 171 | } |
| 172 | |
| 173 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 174 | .matchTunnelId(Long.parseLong(network.segmentId())); |
| 175 | |
| 176 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 177 | .setOutput(patchPortNumber); |
| 178 | |
| 179 | flowRuleService.setRule( |
| 180 | appId, |
| 181 | localNode.tunBridge(), |
| 182 | sBuilder.build(), |
| 183 | tBuilder.build(), |
| 184 | PRIORITY_TUNNEL_RULE, |
| 185 | TUNNEL_DEFAULT_TABLE, |
| 186 | install); |
| 187 | |
| 188 | log.debug("Install ingress rules for instance {}, segment ID {}", |
| 189 | port.ipAddress(), network.segmentId()); |
| 190 | } |
| 191 | |
| 192 | private void setEgressRules(Pod pod, boolean install) { |
| 193 | KubevirtNode localNode = kubevirtNodeService.node(pod.getSpec().getNodeName()); |
| 194 | |
| 195 | if (localNode == null) { |
| 196 | return; |
| 197 | } |
| 198 | |
| 199 | if (localNode.type() == MASTER) { |
| 200 | return; |
| 201 | } |
| 202 | |
| 203 | KubevirtPort port = getPortByPod(pod); |
| 204 | |
| 205 | if (port == null) { |
| 206 | return; |
| 207 | } |
| 208 | |
| 209 | if (port.ipAddress() == null) { |
| 210 | return; |
| 211 | } |
| 212 | |
| 213 | KubevirtNetwork network = kubevirtNetworkService.network(port.networkId()); |
| 214 | |
| 215 | if (network == null) { |
| 216 | return; |
| 217 | } |
| 218 | |
Jian Li | 2ce718e | 2021-02-17 20:42:15 +0900 | [diff] [blame] | 219 | if (network.type() == FLAT || network.type() == VLAN) { |
Jian Li | 858ccd7 | 2021-02-04 17:25:01 +0900 | [diff] [blame] | 220 | return; |
| 221 | } |
| 222 | |
| 223 | if (network.segmentId() == null) { |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | for (KubevirtNode remoteNode : kubevirtNodeService.completeNodes(WORKER)) { |
| 228 | if (remoteNode.hostname().equals(localNode.hostname())) { |
| 229 | continue; |
| 230 | } |
| 231 | |
| 232 | PortNumber patchPortNumber = tunnelToTenantPort(remoteNode, network); |
| 233 | if (patchPortNumber == null) { |
| 234 | return; |
| 235 | } |
| 236 | |
| 237 | PortNumber tunnelPortNumber = tunnelPort(remoteNode, network); |
| 238 | if (tunnelPortNumber == null) { |
| 239 | return; |
| 240 | } |
| 241 | |
| 242 | TrafficSelector.Builder sIpBuilder = DefaultTrafficSelector.builder() |
| 243 | .matchInPort(patchPortNumber) |
| 244 | .matchEthType(Ethernet.TYPE_IPV4) |
| 245 | .matchIPDst(IpPrefix.valueOf(port.ipAddress(), 32)); |
| 246 | |
| 247 | TrafficSelector.Builder sArpBuilder = DefaultTrafficSelector.builder() |
| 248 | .matchInPort(patchPortNumber) |
| 249 | .matchEthType(Ethernet.TYPE_ARP) |
| 250 | .matchArpTpa(Ip4Address.valueOf(port.ipAddress().toString())); |
| 251 | |
| 252 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 253 | .setTunnelId(Long.parseLong(network.segmentId())) |
| 254 | .extension(buildExtension( |
| 255 | deviceService, |
| 256 | remoteNode.tunBridge(), |
| 257 | localNode.dataIp().getIp4Address()), |
| 258 | remoteNode.tunBridge()) |
| 259 | .setOutput(tunnelPortNumber); |
| 260 | |
| 261 | flowRuleService.setRule( |
| 262 | appId, |
| 263 | remoteNode.tunBridge(), |
| 264 | sIpBuilder.build(), |
| 265 | tBuilder.build(), |
| 266 | PRIORITY_TUNNEL_RULE, |
| 267 | TUNNEL_DEFAULT_TABLE, |
| 268 | install); |
| 269 | |
| 270 | flowRuleService.setRule( |
| 271 | appId, |
| 272 | remoteNode.tunBridge(), |
| 273 | sArpBuilder.build(), |
| 274 | tBuilder.build(), |
| 275 | PRIORITY_TUNNEL_RULE, |
| 276 | TUNNEL_DEFAULT_TABLE, |
| 277 | install); |
| 278 | } |
| 279 | |
| 280 | log.debug("Install egress rules for instance {}, segment ID {}", |
| 281 | port.ipAddress(), network.segmentId()); |
| 282 | } |
| 283 | |
| 284 | private class InternalKubevirtNodeListener implements KubevirtNodeListener { |
| 285 | |
| 286 | private boolean isRelevantHelper() { |
| 287 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 288 | } |
| 289 | |
| 290 | @Override |
| 291 | public void event(KubevirtNodeEvent event) { |
| 292 | |
| 293 | switch (event.type()) { |
| 294 | case KUBEVIRT_NODE_COMPLETE: |
| 295 | eventExecutor.execute(() -> processNodeCompletion(event.subject())); |
| 296 | break; |
| 297 | case KUBEVIRT_NODE_INCOMPLETE: |
| 298 | default: |
| 299 | // do nothing |
| 300 | break; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | private void processNodeCompletion(KubevirtNode node) { |
| 305 | if (!isRelevantHelper()) { |
| 306 | return; |
| 307 | } |
| 308 | |
| 309 | kubevirtPodService.pods().stream() |
| 310 | .filter(pod -> node.hostname().equals(pod.getSpec().getNodeName())) |
| 311 | .forEach(pod -> { |
| 312 | setIngressRules(pod, true); |
| 313 | setEgressRules(pod, true); |
| 314 | }); |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | private class InternalKubevirtPodListener implements KubevirtPodListener { |
| 319 | |
| 320 | private boolean isRelevantHelper() { |
| 321 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 322 | } |
| 323 | |
| 324 | @Override |
| 325 | public void event(KubevirtPodEvent event) { |
| 326 | |
| 327 | switch (event.type()) { |
| 328 | case KUBEVIRT_POD_UPDATED: |
| 329 | eventExecutor.execute(() -> processPodUpdate(event.subject())); |
| 330 | break; |
| 331 | case KUBEVIRT_POD_REMOVED: |
| 332 | eventExecutor.execute(() -> processPodRemoval(event.subject())); |
| 333 | break; |
| 334 | default: |
| 335 | // do nothing |
| 336 | break; |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | private void processPodUpdate(Pod pod) { |
| 341 | if (!isRelevantHelper()) { |
| 342 | return; |
| 343 | } |
| 344 | |
| 345 | setIngressRules(pod, true); |
| 346 | setEgressRules(pod, true); |
| 347 | } |
| 348 | |
| 349 | private void processPodRemoval(Pod pod) { |
| 350 | if (!isRelevantHelper()) { |
| 351 | return; |
| 352 | } |
| 353 | |
| 354 | setIngressRules(pod, false); |
| 355 | setEgressRules(pod, false); |
| 356 | } |
| 357 | } |
| 358 | } |