Jian Li | b6dc08f | 2021-03-24 15:24:18 +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 com.fasterxml.jackson.databind.JsonNode; |
| 19 | import com.fasterxml.jackson.databind.ObjectMapper; |
| 20 | import com.fasterxml.jackson.databind.node.ArrayNode; |
Jian Li | a7c909a | 2022-03-03 18:42:49 +0900 | [diff] [blame] | 21 | import com.google.common.collect.ImmutableMap; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 22 | import io.fabric8.kubernetes.client.KubernetesClient; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 23 | import io.fabric8.kubernetes.client.Watcher; |
| 24 | import io.fabric8.kubernetes.client.WatcherException; |
| 25 | import io.fabric8.kubernetes.client.dsl.base.CustomResourceDefinitionContext; |
| 26 | import org.apache.commons.lang3.StringUtils; |
| 27 | import org.onlab.packet.IpAddress; |
| 28 | import org.onlab.packet.MacAddress; |
| 29 | import org.onosproject.cluster.ClusterService; |
| 30 | import org.onosproject.cluster.LeadershipService; |
| 31 | import org.onosproject.cluster.NodeId; |
| 32 | import org.onosproject.core.ApplicationId; |
| 33 | import org.onosproject.core.CoreService; |
| 34 | import org.onosproject.kubevirtnetworking.api.DefaultKubevirtPort; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 35 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkAdminService; |
| 36 | import org.onosproject.kubevirtnetworking.api.KubevirtPodService; |
| 37 | import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| 38 | import org.onosproject.kubevirtnetworking.api.KubevirtPortAdminService; |
| 39 | import org.onosproject.kubevirtnode.api.KubevirtApiConfigEvent; |
| 40 | import org.onosproject.kubevirtnode.api.KubevirtApiConfigListener; |
| 41 | import org.onosproject.kubevirtnode.api.KubevirtApiConfigService; |
| 42 | import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| 43 | import org.onosproject.mastership.MastershipService; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 44 | import org.osgi.service.component.annotations.Activate; |
| 45 | import org.osgi.service.component.annotations.Component; |
| 46 | import org.osgi.service.component.annotations.Deactivate; |
| 47 | import org.osgi.service.component.annotations.Reference; |
| 48 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 49 | import org.slf4j.Logger; |
| 50 | |
| 51 | import java.io.IOException; |
| 52 | import java.util.HashMap; |
| 53 | import java.util.HashSet; |
| 54 | import java.util.Map; |
| 55 | import java.util.Objects; |
| 56 | import java.util.Set; |
| 57 | import java.util.concurrent.ExecutorService; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 58 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 59 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 60 | import static org.onlab.util.Tools.groupedThreads; |
| 61 | import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 62 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.k8sClient; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 63 | import static org.slf4j.LoggerFactory.getLogger; |
| 64 | |
| 65 | /** |
| 66 | * Kubernetes VM watcher used for feeding VM information. |
| 67 | */ |
| 68 | @Component(immediate = true) |
| 69 | public class KubevirtVmWatcher { |
| 70 | |
| 71 | private final Logger log = getLogger(getClass()); |
| 72 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 73 | private static final String SPEC = "spec"; |
| 74 | private static final String TEMPLATE = "template"; |
| 75 | private static final String METADATA = "metadata"; |
| 76 | private static final String ANNOTATIONS = "annotations"; |
| 77 | private static final String DOMAIN = "domain"; |
| 78 | private static final String DEVICES = "devices"; |
| 79 | private static final String INTERFACES = "interfaces"; |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 80 | private static final String SECURITY_GROUPS = "securityGroups"; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 81 | private static final String NAME = "name"; |
| 82 | private static final String NETWORK = "network"; |
| 83 | private static final String MAC = "macAddress"; |
| 84 | private static final String IP = "ipAddress"; |
| 85 | private static final String DEFAULT = "default"; |
Jian Li | 46592cf | 2021-05-11 18:12:55 +0900 | [diff] [blame] | 86 | private static final String CNI_ZERO = "cni0"; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 87 | private static final String NETWORK_SUFFIX = "-net"; |
| 88 | |
| 89 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 90 | protected CoreService coreService; |
| 91 | |
| 92 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 93 | protected MastershipService mastershipService; |
| 94 | |
| 95 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 96 | protected ClusterService clusterService; |
| 97 | |
| 98 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 99 | protected LeadershipService leadershipService; |
| 100 | |
| 101 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 102 | protected KubevirtNodeService nodeService; |
| 103 | |
| 104 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 105 | protected KubevirtNetworkAdminService networkAdminService; |
| 106 | |
| 107 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 108 | protected KubevirtPortAdminService portAdminService; |
| 109 | |
| 110 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 111 | protected KubevirtPodService podService; |
| 112 | |
| 113 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 114 | protected KubevirtApiConfigService configService; |
| 115 | |
| 116 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 117 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 118 | |
| 119 | private final InternalKubevirtVmWatcher watcher = new InternalKubevirtVmWatcher(); |
| 120 | private final InternalKubevirtApiConfigListener |
| 121 | configListener = new InternalKubevirtApiConfigListener(); |
| 122 | |
| 123 | CustomResourceDefinitionContext vmCrdCxt = new CustomResourceDefinitionContext |
| 124 | .Builder() |
| 125 | .withGroup("kubevirt.io") |
| 126 | .withScope("Namespaced") |
| 127 | .withVersion("v1") |
| 128 | .withPlural("virtualmachines") |
| 129 | .build(); |
| 130 | |
| 131 | private ApplicationId appId; |
| 132 | private NodeId localNodeId; |
| 133 | |
| 134 | @Activate |
| 135 | protected void activate() { |
| 136 | appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| 137 | localNodeId = clusterService.getLocalNode().id(); |
| 138 | leadershipService.runForLeadership(appId.name()); |
| 139 | configService.addListener(configListener); |
| 140 | |
| 141 | log.info("Started"); |
| 142 | } |
| 143 | |
| 144 | @Deactivate |
| 145 | protected void deactivate() { |
| 146 | configService.removeListener(configListener); |
| 147 | leadershipService.withdraw(appId.name()); |
| 148 | eventExecutor.shutdown(); |
| 149 | |
| 150 | log.info("Stopped"); |
| 151 | } |
| 152 | |
| 153 | private void instantiateWatcher() { |
| 154 | KubernetesClient client = k8sClient(configService); |
| 155 | |
| 156 | if (client != null) { |
| 157 | try { |
| 158 | client.customResource(vmCrdCxt).watch(watcher); |
| 159 | } catch (IOException e) { |
| 160 | e.printStackTrace(); |
| 161 | } |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | private class InternalKubevirtApiConfigListener implements KubevirtApiConfigListener { |
| 166 | |
| 167 | private boolean isRelevantHelper() { |
| 168 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public void event(KubevirtApiConfigEvent event) { |
| 173 | |
| 174 | switch (event.type()) { |
| 175 | case KUBEVIRT_API_CONFIG_UPDATED: |
| 176 | eventExecutor.execute(this::processConfigUpdate); |
| 177 | break; |
| 178 | case KUBEVIRT_API_CONFIG_CREATED: |
| 179 | case KUBEVIRT_API_CONFIG_REMOVED: |
| 180 | default: |
| 181 | // do nothing |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | private void processConfigUpdate() { |
| 187 | if (!isRelevantHelper()) { |
| 188 | return; |
| 189 | } |
| 190 | |
| 191 | instantiateWatcher(); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | private class InternalKubevirtVmWatcher implements Watcher<String> { |
| 196 | |
| 197 | @Override |
| 198 | public void eventReceived(Action action, String resource) { |
| 199 | switch (action) { |
| 200 | case ADDED: |
| 201 | eventExecutor.execute(() -> processAddition(resource)); |
| 202 | break; |
| 203 | case DELETED: |
| 204 | eventExecutor.execute(() -> processDeletion(resource)); |
| 205 | break; |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 206 | case MODIFIED: |
| 207 | eventExecutor.execute(() -> processModification(resource)); |
| 208 | break; |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 209 | case ERROR: |
| 210 | log.warn("Failures processing VM manipulation."); |
| 211 | break; |
| 212 | default: |
| 213 | break; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | @Override |
| 218 | public void onClose(WatcherException e) { |
Jian Li | c9e2924 | 2022-12-20 15:07:04 +0900 | [diff] [blame] | 219 | // due to the bugs in fabric8, the watcher might be closed, |
| 220 | // we will re-instantiate the watcher in this case |
| 221 | // FIXME: https://github.com/fabric8io/kubernetes-client/issues/2135 |
| 222 | log.info("VM watcher OnClose, re-instantiate the VM watcher..."); |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 223 | instantiateWatcher(); |
| 224 | } |
| 225 | |
| 226 | private void processAddition(String resource) { |
| 227 | if (!isMaster()) { |
| 228 | return; |
| 229 | } |
| 230 | |
Jian Li | 9557e90 | 2021-06-08 10:12:52 +0900 | [diff] [blame] | 231 | String vmName = parseVmName(resource); |
| 232 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 233 | parseMacAddresses(resource).forEach((mac, net) -> { |
| 234 | KubevirtPort port = DefaultKubevirtPort.builder() |
Jian Li | 9557e90 | 2021-06-08 10:12:52 +0900 | [diff] [blame] | 235 | .vmName(vmName) |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 236 | .macAddress(mac) |
| 237 | .networkId(net) |
| 238 | .build(); |
| 239 | |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 240 | Set<String> sgs = parseSecurityGroups(resource); |
| 241 | port = port.updateSecurityGroups(sgs); |
| 242 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 243 | Map<String, IpAddress> ips = parseIpAddresses(resource); |
Jian Li | 7388cdc | 2021-05-16 16:41:13 +0900 | [diff] [blame] | 244 | IpAddress ip = ips.get(port.networkId()); |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 245 | |
Jian Li | 7388cdc | 2021-05-16 16:41:13 +0900 | [diff] [blame] | 246 | port = port.updateIpAddress(ip); |
| 247 | |
Jian Li | ea1ead7 | 2021-05-28 11:00:07 +0900 | [diff] [blame] | 248 | if (portAdminService.port(port.macAddress()) == null) { |
| 249 | portAdminService.createPort(port); |
| 250 | } |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 251 | }); |
| 252 | } |
| 253 | |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 254 | private void processModification(String resource) { |
| 255 | if (!isMaster()) { |
| 256 | return; |
| 257 | } |
| 258 | |
Jian Li | 9557e90 | 2021-06-08 10:12:52 +0900 | [diff] [blame] | 259 | String vmName = parseVmName(resource); |
| 260 | |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 261 | parseMacAddresses(resource).forEach((mac, net) -> { |
| 262 | KubevirtPort port = DefaultKubevirtPort.builder() |
Jian Li | 9557e90 | 2021-06-08 10:12:52 +0900 | [diff] [blame] | 263 | .vmName(vmName) |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 264 | .macAddress(mac) |
| 265 | .networkId(net) |
| 266 | .build(); |
| 267 | |
| 268 | KubevirtPort existing = portAdminService.port(port.macAddress()); |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 269 | Set<String> sgs = parseSecurityGroups(resource); |
Jian Li | 7388cdc | 2021-05-16 16:41:13 +0900 | [diff] [blame] | 270 | |
Jian Li | 14541f5 | 2023-07-28 20:06:04 +0900 | [diff] [blame] | 271 | Map<String, IpAddress> ips = parseIpAddresses(resource); |
| 272 | IpAddress ip = ips.get(port.networkId()); |
| 273 | |
Jian Li | 5c6cf8f | 2022-03-16 11:46:45 +0900 | [diff] [blame] | 274 | if (existing == null) { |
| 275 | // if the network related information is filled with VM update event, |
| 276 | // and there is no port found in the store |
| 277 | // we try to add port by extracting network related info from VM |
| 278 | port = port.updateSecurityGroups(sgs); |
Jian Li | 5c6cf8f | 2022-03-16 11:46:45 +0900 | [diff] [blame] | 279 | port = port.updateIpAddress(ip); |
| 280 | portAdminService.createPort(port); |
| 281 | } else { |
Jian Li | 14541f5 | 2023-07-28 20:06:04 +0900 | [diff] [blame] | 282 | // we only update the port, if either the newly updated |
| 283 | // security groups have different values compared to existing |
| 284 | // ones or the newly updated IP address has been changed |
| 285 | KubevirtPort updatedPort = existing; |
| 286 | if (!existing.securityGroups().equals(sgs)) { |
| 287 | updatedPort = updatedPort.updateSecurityGroups(sgs); |
| 288 | } |
| 289 | if (!existing.ipAddress().equals(ip)) { |
| 290 | updatedPort = updatedPort.updateIpAddress(ip); |
| 291 | } |
Jian Li | fd15192 | 2023-11-30 21:54:17 +0900 | [diff] [blame^] | 292 | if (!existing.securityGroups().equals(sgs) || |
| 293 | !existing.ipAddress().equals(ip)) { |
Jian Li | 14541f5 | 2023-07-28 20:06:04 +0900 | [diff] [blame] | 294 | portAdminService.updatePort(updatedPort); |
Jian Li | 5c6cf8f | 2022-03-16 11:46:45 +0900 | [diff] [blame] | 295 | } |
Jian Li | 7388cdc | 2021-05-16 16:41:13 +0900 | [diff] [blame] | 296 | } |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 297 | }); |
| 298 | } |
| 299 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 300 | private void processDeletion(String resource) { |
| 301 | if (!isMaster()) { |
| 302 | return; |
| 303 | } |
| 304 | |
| 305 | parseMacAddresses(resource).forEach((mac, net) -> { |
| 306 | KubevirtPort port = portAdminService.port(mac); |
| 307 | if (port != null) { |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 308 | portAdminService.removePort(mac); |
| 309 | } |
| 310 | }); |
| 311 | } |
| 312 | |
| 313 | private boolean isMaster() { |
| 314 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 315 | } |
| 316 | |
Jian Li | 9557e90 | 2021-06-08 10:12:52 +0900 | [diff] [blame] | 317 | private String parseVmName(String resource) { |
| 318 | String vmName = null; |
| 319 | try { |
| 320 | ObjectMapper mapper = new ObjectMapper(); |
| 321 | JsonNode json = mapper.readTree(resource); |
| 322 | JsonNode nameJson = json.get(METADATA).get(NAME); |
| 323 | if (nameJson != null) { |
| 324 | vmName = nameJson.asText(); |
| 325 | } |
| 326 | } catch (IOException e) { |
| 327 | log.error("Failed to parse kubevirt VM name"); |
| 328 | } |
| 329 | |
| 330 | return vmName; |
| 331 | } |
| 332 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 333 | private Map<String, IpAddress> parseIpAddresses(String resource) { |
| 334 | try { |
| 335 | ObjectMapper mapper = new ObjectMapper(); |
| 336 | JsonNode json = mapper.readTree(resource); |
| 337 | JsonNode metadata = json.get(SPEC).get(TEMPLATE).get(METADATA); |
| 338 | |
| 339 | JsonNode annots = metadata.get(ANNOTATIONS); |
| 340 | if (annots == null) { |
| 341 | return new HashMap<>(); |
| 342 | } |
| 343 | |
| 344 | JsonNode interfacesJson = annots.get(INTERFACES); |
| 345 | if (interfacesJson == null) { |
| 346 | return new HashMap<>(); |
| 347 | } |
| 348 | |
| 349 | Map<String, IpAddress> result = new HashMap<>(); |
| 350 | |
| 351 | String interfacesString = interfacesJson.asText(); |
| 352 | ArrayNode interfaces = (ArrayNode) mapper.readTree(interfacesString); |
| 353 | for (JsonNode intf : interfaces) { |
| 354 | String network = intf.get(NETWORK).asText(); |
| 355 | String ip = intf.get(IP).asText(); |
| 356 | result.put(network, IpAddress.valueOf(ip)); |
| 357 | } |
| 358 | |
| 359 | return result; |
| 360 | } catch (IOException e) { |
| 361 | log.error("Failed to parse kubevirt VM IP addresses"); |
| 362 | } |
| 363 | |
| 364 | return new HashMap<>(); |
| 365 | } |
| 366 | |
Jian Li | 8f944d4 | 2021-03-23 00:43:29 +0900 | [diff] [blame] | 367 | private Set<String> parseSecurityGroups(String resource) { |
| 368 | try { |
| 369 | ObjectMapper mapper = new ObjectMapper(); |
| 370 | JsonNode json = mapper.readTree(resource); |
| 371 | JsonNode metadata = json.get(SPEC).get(TEMPLATE).get(METADATA); |
| 372 | |
| 373 | JsonNode annots = metadata.get(ANNOTATIONS); |
| 374 | if (annots == null) { |
| 375 | return new HashSet<>(); |
| 376 | } |
| 377 | |
| 378 | JsonNode sgsJson = annots.get(SECURITY_GROUPS); |
| 379 | if (sgsJson == null) { |
| 380 | return new HashSet<>(); |
| 381 | } |
| 382 | |
| 383 | Set<String> result = new HashSet<>(); |
| 384 | ArrayNode sgs = (ArrayNode) mapper.readTree(sgsJson.asText()); |
| 385 | for (JsonNode sg : sgs) { |
| 386 | result.add(sg.asText()); |
| 387 | } |
| 388 | |
| 389 | return result; |
| 390 | |
| 391 | } catch (IOException e) { |
| 392 | log.error("Failed to parse kubevirt security group IDs."); |
| 393 | } |
| 394 | |
| 395 | return new HashSet<>(); |
| 396 | } |
| 397 | |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 398 | private Map<MacAddress, String> parseMacAddresses(String resource) { |
| 399 | try { |
| 400 | ObjectMapper mapper = new ObjectMapper(); |
| 401 | JsonNode json = mapper.readTree(resource); |
| 402 | JsonNode spec = json.get(SPEC).get(TEMPLATE).get(SPEC); |
| 403 | ArrayNode interfaces = (ArrayNode) spec.get(DOMAIN).get(DEVICES).get(INTERFACES); |
| 404 | |
Jian Li | a7c909a | 2022-03-03 18:42:49 +0900 | [diff] [blame] | 405 | // if the VM is not associated with any network, we skip parsing MAC address |
| 406 | if (interfaces == null) { |
| 407 | return ImmutableMap.of(); |
| 408 | } |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 409 | Map<MacAddress, String> result = new HashMap<>(); |
| 410 | for (JsonNode intf : interfaces) { |
| 411 | String network = intf.get(NAME).asText(); |
| 412 | JsonNode macJson = intf.get(MAC); |
| 413 | |
Jian Li | 46592cf | 2021-05-11 18:12:55 +0900 | [diff] [blame] | 414 | if (!DEFAULT.equals(network) && !CNI_ZERO.equals(network) && macJson != null) { |
Jian Li | b6dc08f | 2021-03-24 15:24:18 +0900 | [diff] [blame] | 415 | String compact = StringUtils.substringBeforeLast(network, NETWORK_SUFFIX); |
| 416 | MacAddress mac = MacAddress.valueOf(macJson.asText()); |
| 417 | result.put(mac, compact); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | return result; |
| 422 | } catch (IOException e) { |
| 423 | log.error("Failed to parse kubevirt VM MAC addresses"); |
| 424 | } |
| 425 | |
| 426 | return new HashMap<>(); |
| 427 | } |
| 428 | } |
| 429 | } |