Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019-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.k8snetworking.impl; |
| 17 | |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 18 | import org.onlab.packet.ARP; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 19 | import org.onlab.packet.Ethernet; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 20 | import org.onlab.packet.Ip4Address; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 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.k8snetworking.api.K8sFlowRuleService; |
| 28 | import org.onosproject.k8snetworking.api.K8sNetwork; |
| 29 | import org.onosproject.k8snetworking.api.K8sNetworkEvent; |
| 30 | import org.onosproject.k8snetworking.api.K8sNetworkListener; |
| 31 | import org.onosproject.k8snetworking.api.K8sNetworkService; |
| 32 | import org.onosproject.k8snode.api.K8sNode; |
| 33 | import org.onosproject.k8snode.api.K8sNodeEvent; |
| 34 | import org.onosproject.k8snode.api.K8sNodeListener; |
| 35 | import org.onosproject.k8snode.api.K8sNodeService; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 36 | import org.onosproject.net.Device; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 37 | import org.onosproject.net.PortNumber; |
| 38 | import org.onosproject.net.device.DeviceService; |
| 39 | import org.onosproject.net.driver.DriverService; |
| 40 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 41 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 42 | import org.onosproject.net.flow.TrafficSelector; |
| 43 | import org.onosproject.net.flow.TrafficTreatment; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 44 | import org.onosproject.net.flow.instructions.ExtensionTreatment; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 45 | import org.onosproject.net.packet.PacketService; |
| 46 | import org.osgi.service.component.annotations.Activate; |
| 47 | import org.osgi.service.component.annotations.Component; |
| 48 | import org.osgi.service.component.annotations.Deactivate; |
| 49 | import org.osgi.service.component.annotations.Reference; |
| 50 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 51 | import org.slf4j.Logger; |
| 52 | |
| 53 | import java.util.Objects; |
| 54 | import java.util.concurrent.ExecutorService; |
| 55 | |
| 56 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 57 | import static org.onlab.util.Tools.groupedThreads; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 58 | import static org.onosproject.k8snetworking.api.Constants.B_CLASS; |
| 59 | import static org.onosproject.k8snetworking.api.Constants.DST; |
| 60 | import static org.onosproject.k8snetworking.api.Constants.HOST_PREFIX; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 61 | import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 62 | import static org.onosproject.k8snetworking.api.Constants.LOCAL_ENTRY_TABLE; |
| 63 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_ARP_REPLY_RULE; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 64 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_GATEWAY_RULE; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 65 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_LOCAL_BRIDGE_RULE; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 66 | import static org.onosproject.k8snetworking.api.Constants.ROUTING_TABLE; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 67 | import static org.onosproject.k8snetworking.api.Constants.SHIFTED_IP_PREFIX; |
| 68 | import static org.onosproject.k8snetworking.api.Constants.SHIFTED_LOCAL_IP_PREFIX; |
| 69 | import static org.onosproject.k8snetworking.api.Constants.SRC; |
| 70 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.shiftIpDomain; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 71 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.tunnelPortNumByNetId; |
| 72 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildExtension; |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 73 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildLoadExtension; |
| 74 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveArpShaToThaExtension; |
| 75 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveArpSpaToTpaExtension; |
| 76 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveEthSrcToDstExtension; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 77 | import static org.slf4j.LoggerFactory.getLogger; |
| 78 | |
| 79 | /** |
| 80 | * Populates switching flow rules on OVS for providing the connectivity between |
| 81 | * container and network gateway. |
| 82 | */ |
| 83 | @Component(immediate = true) |
| 84 | public class K8sSwitchingGatewayHandler { |
| 85 | |
| 86 | private final Logger log = getLogger(getClass()); |
| 87 | |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 88 | private static final String REQUEST = "req"; |
| 89 | private static final String REPLY = "rep"; |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 90 | |
| 91 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 92 | protected CoreService coreService; |
| 93 | |
| 94 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 95 | protected ClusterService clusterService; |
| 96 | |
| 97 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 98 | protected LeadershipService leadershipService; |
| 99 | |
| 100 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 101 | protected DeviceService deviceService; |
| 102 | |
| 103 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 104 | protected DriverService driverService; |
| 105 | |
| 106 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 107 | protected PacketService packetService; |
| 108 | |
| 109 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 110 | protected K8sFlowRuleService k8sFlowRuleService; |
| 111 | |
| 112 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 113 | protected K8sNetworkService k8sNetworkService; |
| 114 | |
| 115 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 116 | protected K8sNodeService k8sNodeService; |
| 117 | |
| 118 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 119 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 120 | private final InternalK8sNetworkListener k8sNetworkListener = |
| 121 | new InternalK8sNetworkListener(); |
| 122 | private final InternalK8sNodeListener k8sNodeListener = |
| 123 | new InternalK8sNodeListener(); |
| 124 | |
| 125 | private ApplicationId appId; |
| 126 | private NodeId localNodeId; |
| 127 | |
| 128 | @Activate |
| 129 | protected void activate() { |
| 130 | appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| 131 | k8sNetworkService.addListener(k8sNetworkListener); |
| 132 | k8sNodeService.addListener(k8sNodeListener); |
| 133 | localNodeId = clusterService.getLocalNode().id(); |
| 134 | leadershipService.runForLeadership(appId.name()); |
| 135 | |
| 136 | log.info("Started"); |
| 137 | } |
| 138 | |
| 139 | @Deactivate |
| 140 | protected void deactivate() { |
| 141 | k8sNodeService.removeListener(k8sNodeListener); |
| 142 | k8sNetworkService.removeListener(k8sNetworkListener); |
| 143 | leadershipService.withdraw(appId.name()); |
| 144 | eventExecutor.shutdown(); |
| 145 | |
| 146 | log.info("Stopped"); |
| 147 | } |
| 148 | |
| 149 | private void setGatewayRule(K8sNetwork k8sNetwork, boolean install) { |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 150 | for (K8sNode node : k8sNodeService.completeNodes()) { |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 151 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 152 | .matchEthType(Ethernet.TYPE_IPV4) |
| 153 | .matchIPDst(IpPrefix.valueOf(k8sNetwork.gatewayIp(), |
| 154 | HOST_PREFIX)); |
| 155 | |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 156 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 157 | |
| 158 | if (node.hostname().equals(k8sNetwork.name())) { |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 159 | tBuilder.setEthDst(node.intgBridgeMac()) |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 160 | .setOutput(PortNumber.LOCAL); |
| 161 | } else { |
| 162 | PortNumber portNum = tunnelPortNumByNetId(k8sNetwork.networkId(), |
| 163 | k8sNetworkService, node); |
| 164 | K8sNode localNode = k8sNodeService.node(k8sNetwork.name()); |
| 165 | |
| 166 | tBuilder.extension(buildExtension( |
| 167 | deviceService, |
| 168 | node.intgBridge(), |
| 169 | localNode.dataIp().getIp4Address()), |
| 170 | node.intgBridge()) |
| 171 | .setOutput(portNum); |
| 172 | } |
| 173 | |
| 174 | k8sFlowRuleService.setRule( |
| 175 | appId, |
| 176 | node.intgBridge(), |
| 177 | sBuilder.build(), |
| 178 | tBuilder.build(), |
| 179 | PRIORITY_GATEWAY_RULE, |
| 180 | ROUTING_TABLE, |
| 181 | install); |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 182 | |
| 183 | if (node.hostname().equals(k8sNetwork.name())) { |
| 184 | sBuilder = DefaultTrafficSelector.builder() |
| 185 | .matchInPort(PortNumber.LOCAL) |
| 186 | .matchEthType(Ethernet.TYPE_IPV4) |
| 187 | .matchIPDst(IpPrefix.valueOf(k8sNetwork.gatewayIp(), |
| 188 | HOST_PREFIX)); |
| 189 | |
| 190 | tBuilder = DefaultTrafficTreatment.builder() |
| 191 | .setOutput(node.intgToLocalPatchPortNum()); |
| 192 | |
| 193 | k8sFlowRuleService.setRule( |
| 194 | appId, |
| 195 | node.intgBridge(), |
| 196 | sBuilder.build(), |
| 197 | tBuilder.build(), |
| 198 | PRIORITY_LOCAL_BRIDGE_RULE, |
| 199 | ROUTING_TABLE, |
| 200 | install); |
| 201 | } |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 202 | } |
| 203 | } |
| 204 | |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 205 | private void setLocalBridgeRules(K8sNetwork k8sNetwork, boolean install) { |
| 206 | for (K8sNode node : k8sNodeService.completeNodes()) { |
| 207 | if (node.hostname().equals(k8sNetwork.name())) { |
| 208 | setLocalBridgeRule(k8sNetwork, node, REQUEST, install); |
| 209 | setLocalBridgeRule(k8sNetwork, node, REPLY, install); |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | private void setLocalBridgeRule(K8sNetwork k8sNetwork, K8sNode k8sNode, |
| 215 | String type, boolean install) { |
| 216 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 217 | .matchEthType(Ethernet.TYPE_IPV4); |
| 218 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 219 | |
| 220 | ExtensionTreatment loadTreatment = null; |
| 221 | |
| 222 | if (REQUEST.equals(type)) { |
| 223 | loadTreatment = buildLoadExtension(deviceService.getDevice( |
| 224 | k8sNode.localBridge()), B_CLASS, SRC, SHIFTED_LOCAL_IP_PREFIX); |
| 225 | } |
| 226 | |
| 227 | if (REPLY.equals(type)) { |
| 228 | loadTreatment = buildLoadExtension(deviceService.getDevice( |
| 229 | k8sNode.localBridge()), B_CLASS, DST, SHIFTED_IP_PREFIX); |
| 230 | } |
| 231 | |
| 232 | tBuilder.extension(loadTreatment, k8sNode.localBridge()); |
| 233 | |
| 234 | if (REQUEST.equals(type)) { |
| 235 | sBuilder.matchIPDst(IpPrefix.valueOf(k8sNetwork.gatewayIp(), |
| 236 | HOST_PREFIX)); |
| 237 | tBuilder.setOutput(PortNumber.LOCAL); |
| 238 | } |
| 239 | |
| 240 | if (REPLY.equals(type)) { |
| 241 | sBuilder.matchIPSrc(IpPrefix.valueOf(k8sNetwork.gatewayIp(), |
| 242 | HOST_PREFIX)); |
| 243 | tBuilder.setOutput(k8sNode.localToIntgPatchPortNumber()); |
| 244 | } |
| 245 | |
| 246 | k8sFlowRuleService.setRule( |
| 247 | appId, |
| 248 | k8sNode.localBridge(), |
| 249 | sBuilder.build(), |
| 250 | tBuilder.build(), |
| 251 | PRIORITY_LOCAL_BRIDGE_RULE, |
| 252 | LOCAL_ENTRY_TABLE, |
| 253 | install); |
| 254 | } |
| 255 | |
| 256 | private void setLocalBridgeArpRules(K8sNetwork k8sNetwork, boolean install) { |
| 257 | for (K8sNode node : k8sNodeService.completeNodes()) { |
| 258 | if (node.hostname().equals(k8sNetwork.name())) { |
| 259 | setLocalBridgeArpRule(k8sNetwork, node, install); |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | private void setLocalBridgeArpRule(K8sNetwork k8sNetwork, K8sNode k8sNode, boolean install) { |
| 265 | Device device = deviceService.getDevice(k8sNode.localBridge()); |
| 266 | |
| 267 | String shiftedLocalIp = shiftIpDomain( |
| 268 | k8sNetwork.gatewayIp().toString(), SHIFTED_LOCAL_IP_PREFIX); |
| 269 | |
| 270 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 271 | .matchEthType(Ethernet.TYPE_ARP) |
| 272 | .matchArpOp(ARP.OP_REQUEST) |
| 273 | .matchArpTpa(Ip4Address.valueOf(shiftedLocalIp)) |
| 274 | .build(); |
| 275 | |
| 276 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 277 | .setArpOp(ARP.OP_REPLY) |
| 278 | .extension(buildMoveEthSrcToDstExtension(device), device.id()) |
| 279 | .extension(buildMoveArpShaToThaExtension(device), device.id()) |
| 280 | .extension(buildMoveArpSpaToTpaExtension(device), device.id()) |
| 281 | .setArpSpa(Ip4Address.valueOf(shiftedLocalIp)) |
| 282 | .setArpSha(k8sNode.intgBridgeMac()) |
| 283 | .setOutput(PortNumber.IN_PORT) |
| 284 | .build(); |
| 285 | |
| 286 | k8sFlowRuleService.setRule( |
| 287 | appId, |
| 288 | device.id(), |
| 289 | selector, |
| 290 | treatment, |
| 291 | PRIORITY_ARP_REPLY_RULE, |
| 292 | LOCAL_ENTRY_TABLE, |
| 293 | install); |
| 294 | } |
| 295 | |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 296 | private class InternalK8sNetworkListener implements K8sNetworkListener { |
| 297 | |
| 298 | private boolean isRelevantHelper() { |
| 299 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 300 | } |
| 301 | |
| 302 | @Override |
| 303 | public void event(K8sNetworkEvent event) { |
| 304 | switch (event.type()) { |
| 305 | case K8S_NETWORK_CREATED: |
| 306 | case K8S_NETWORK_UPDATED: |
| 307 | eventExecutor.execute(() -> processNetworkCreation(event)); |
| 308 | break; |
| 309 | case K8S_NETWORK_REMOVED: |
| 310 | eventExecutor.execute(() -> processNetworkRemoval(event)); |
| 311 | break; |
| 312 | default: |
| 313 | break; |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | private void processNetworkCreation(K8sNetworkEvent event) { |
| 318 | if (!isRelevantHelper()) { |
| 319 | return; |
| 320 | } |
| 321 | |
| 322 | setGatewayRule(event.subject(), true); |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 323 | setLocalBridgeRules(event.subject(), true); |
| 324 | setLocalBridgeArpRules(event.subject(), true); |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | private void processNetworkRemoval(K8sNetworkEvent event) { |
| 328 | if (!isRelevantHelper()) { |
| 329 | return; |
| 330 | } |
| 331 | |
| 332 | setGatewayRule(event.subject(), false); |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 333 | setLocalBridgeRules(event.subject(), false); |
| 334 | setLocalBridgeArpRules(event.subject(), false); |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 335 | } |
| 336 | } |
| 337 | |
| 338 | private class InternalK8sNodeListener implements K8sNodeListener { |
| 339 | private boolean isRelevantHelper() { |
| 340 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 341 | } |
| 342 | |
| 343 | @Override |
| 344 | public void event(K8sNodeEvent event) { |
| 345 | switch (event.type()) { |
| 346 | case K8S_NODE_COMPLETE: |
| 347 | eventExecutor.execute(() -> processNodeCompletion(event.subject())); |
| 348 | break; |
| 349 | case K8S_NODE_INCOMPLETE: |
| 350 | default: |
| 351 | break; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | private void processNodeCompletion(K8sNode node) { |
| 356 | log.info("COMPLETE node {} is detected", node.hostname()); |
| 357 | |
| 358 | if (!isRelevantHelper()) { |
| 359 | return; |
| 360 | } |
| 361 | |
| 362 | k8sNetworkService.networks().forEach(n -> setGatewayRule(n, true)); |
Jian Li | 1a2eb5d | 2019-08-27 02:07:05 +0900 | [diff] [blame] | 363 | k8sNetworkService.networks().forEach(n -> setLocalBridgeRules(n, true)); |
| 364 | k8sNetworkService.networks().forEach(n -> setLocalBridgeArpRules(n, true)); |
Jian Li | 7d111d7 | 2019-04-12 13:58:44 +0900 | [diff] [blame] | 365 | } |
| 366 | } |
| 367 | } |