Jian Li | 747e136 | 2019-02-19 22:59:46 +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 | |
| 18 | import com.google.common.collect.ImmutableSet; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 19 | import io.fabric8.kubernetes.api.model.Affinity; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 20 | import io.fabric8.kubernetes.api.model.Capabilities; |
| 21 | import io.fabric8.kubernetes.api.model.ConfigMapEnvSource; |
| 22 | import io.fabric8.kubernetes.api.model.ConfigMapKeySelector; |
| 23 | import io.fabric8.kubernetes.api.model.ConfigMapVolumeSource; |
| 24 | import io.fabric8.kubernetes.api.model.Container; |
| 25 | import io.fabric8.kubernetes.api.model.ContainerPort; |
| 26 | import io.fabric8.kubernetes.api.model.ContainerState; |
| 27 | import io.fabric8.kubernetes.api.model.ContainerStateRunning; |
| 28 | import io.fabric8.kubernetes.api.model.ContainerStateTerminated; |
| 29 | import io.fabric8.kubernetes.api.model.ContainerStateWaiting; |
| 30 | import io.fabric8.kubernetes.api.model.ContainerStatus; |
| 31 | import io.fabric8.kubernetes.api.model.EmptyDirVolumeSource; |
| 32 | import io.fabric8.kubernetes.api.model.EnvFromSource; |
| 33 | import io.fabric8.kubernetes.api.model.EnvVar; |
| 34 | import io.fabric8.kubernetes.api.model.EnvVarSource; |
| 35 | import io.fabric8.kubernetes.api.model.ExecAction; |
| 36 | import io.fabric8.kubernetes.api.model.HTTPGetAction; |
| 37 | import io.fabric8.kubernetes.api.model.HTTPHeader; |
| 38 | import io.fabric8.kubernetes.api.model.HostPathVolumeSource; |
| 39 | import io.fabric8.kubernetes.api.model.IntOrString; |
| 40 | import io.fabric8.kubernetes.api.model.KeyToPath; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 41 | import io.fabric8.kubernetes.api.model.LabelSelector; |
| 42 | import io.fabric8.kubernetes.api.model.LabelSelectorRequirement; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 43 | import io.fabric8.kubernetes.api.model.Lifecycle; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 44 | import io.fabric8.kubernetes.api.model.NodeAffinity; |
| 45 | import io.fabric8.kubernetes.api.model.NodeSelector; |
| 46 | import io.fabric8.kubernetes.api.model.NodeSelectorRequirement; |
| 47 | import io.fabric8.kubernetes.api.model.NodeSelectorTerm; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 48 | import io.fabric8.kubernetes.api.model.ObjectFieldSelector; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 49 | import io.fabric8.kubernetes.api.model.ObjectMeta; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 50 | import io.fabric8.kubernetes.api.model.OwnerReference; |
| 51 | import io.fabric8.kubernetes.api.model.PersistentVolumeClaimVolumeSource; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 52 | import io.fabric8.kubernetes.api.model.Pod; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 53 | import io.fabric8.kubernetes.api.model.PodAffinity; |
| 54 | import io.fabric8.kubernetes.api.model.PodAffinityTerm; |
| 55 | import io.fabric8.kubernetes.api.model.PodAntiAffinity; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 56 | import io.fabric8.kubernetes.api.model.PodCondition; |
| 57 | import io.fabric8.kubernetes.api.model.PodSecurityContext; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 58 | import io.fabric8.kubernetes.api.model.PodSpec; |
| 59 | import io.fabric8.kubernetes.api.model.PodStatus; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 60 | import io.fabric8.kubernetes.api.model.PreferredSchedulingTerm; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 61 | import io.fabric8.kubernetes.api.model.Probe; |
| 62 | import io.fabric8.kubernetes.api.model.Quantity; |
| 63 | import io.fabric8.kubernetes.api.model.ResourceFieldSelector; |
| 64 | import io.fabric8.kubernetes.api.model.ResourceRequirements; |
| 65 | import io.fabric8.kubernetes.api.model.SELinuxOptions; |
| 66 | import io.fabric8.kubernetes.api.model.SecretEnvSource; |
| 67 | import io.fabric8.kubernetes.api.model.SecretKeySelector; |
| 68 | import io.fabric8.kubernetes.api.model.SecretVolumeSource; |
| 69 | import io.fabric8.kubernetes.api.model.SecurityContext; |
| 70 | import io.fabric8.kubernetes.api.model.TCPSocketAction; |
| 71 | import io.fabric8.kubernetes.api.model.Toleration; |
| 72 | import io.fabric8.kubernetes.api.model.Volume; |
| 73 | import io.fabric8.kubernetes.api.model.VolumeDevice; |
| 74 | import io.fabric8.kubernetes.api.model.VolumeMount; |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 75 | import io.fabric8.kubernetes.api.model.WeightedPodAffinityTerm; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 76 | import org.onlab.util.KryoNamespace; |
| 77 | import org.onosproject.core.ApplicationId; |
| 78 | import org.onosproject.core.CoreService; |
| 79 | import org.onosproject.k8snetworking.api.K8sPodEvent; |
| 80 | import org.onosproject.k8snetworking.api.K8sPodStore; |
| 81 | import org.onosproject.k8snetworking.api.K8sPodStoreDelegate; |
| 82 | import org.onosproject.store.AbstractStore; |
| 83 | import org.onosproject.store.serializers.KryoNamespaces; |
| 84 | import org.onosproject.store.service.ConsistentMap; |
| 85 | import org.onosproject.store.service.MapEvent; |
| 86 | import org.onosproject.store.service.MapEventListener; |
| 87 | import org.onosproject.store.service.Serializer; |
| 88 | import org.onosproject.store.service.StorageService; |
| 89 | import org.onosproject.store.service.Versioned; |
| 90 | import org.osgi.service.component.annotations.Activate; |
| 91 | import org.osgi.service.component.annotations.Component; |
| 92 | import org.osgi.service.component.annotations.Deactivate; |
| 93 | import org.osgi.service.component.annotations.Reference; |
| 94 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 95 | import org.slf4j.Logger; |
| 96 | |
| 97 | import java.util.Collection; |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 98 | import java.util.LinkedHashMap; |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 99 | import java.util.Map; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 100 | import java.util.Set; |
| 101 | import java.util.concurrent.ExecutorService; |
| 102 | |
| 103 | import static com.google.common.base.Preconditions.checkArgument; |
| 104 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 105 | import static org.onlab.util.Tools.groupedThreads; |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 106 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_ANNOTATION_ADDED; |
| 107 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_COMPLETED; |
| 108 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_CRASH_LOOP_BACK_OFF; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 109 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_CREATED; |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 110 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_FAILED; |
| 111 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_PENDING; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 112 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_REMOVED; |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 113 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_RUNNING; |
| 114 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_SUCCEEDED; |
| 115 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_UNKNOWN; |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 116 | import static org.onosproject.k8snetworking.api.K8sPodEvent.Type.K8S_POD_UPDATED; |
| 117 | import static org.slf4j.LoggerFactory.getLogger; |
| 118 | |
| 119 | /** |
| 120 | * Implementation of kubernetes pod store using consistent map. |
| 121 | */ |
| 122 | @Component(immediate = true, service = K8sPodStore.class) |
| 123 | public class DistributedK8sPodStore |
| 124 | extends AbstractStore<K8sPodEvent, K8sPodStoreDelegate> |
| 125 | implements K8sPodStore { |
| 126 | |
| 127 | private final Logger log = getLogger(getClass()); |
| 128 | |
| 129 | private static final String ERR_NOT_FOUND = " does not exist"; |
| 130 | private static final String ERR_DUPLICATE = " already exists"; |
| 131 | private static final String APP_ID = "org.onosproject.k8snetwork"; |
| 132 | |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 133 | private static final String PENDING = "Pending"; |
| 134 | private static final String RUNNING = "Running"; |
| 135 | private static final String SUCCEEDED = "Succeeded"; |
| 136 | private static final String FAILED = "Failed"; |
| 137 | private static final String UNKNOWN = "Unknown"; |
| 138 | private static final String COMPLETED = "Completed"; |
| 139 | private static final String CRASH_LOOP_BACK_OFF = "CrashLoopBackOff"; |
| 140 | |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 141 | private static final KryoNamespace |
| 142 | SERIALIZER_K8S_POD = KryoNamespace.newBuilder() |
| 143 | .register(KryoNamespaces.API) |
| 144 | .register(Pod.class) |
| 145 | .register(ObjectMeta.class) |
| 146 | .register(PodSpec.class) |
| 147 | .register(PodStatus.class) |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 148 | .register(PodCondition.class) |
| 149 | .register(Container.class) |
| 150 | .register(EnvVar.class) |
| 151 | .register(EnvVarSource.class) |
| 152 | .register(EnvFromSource.class) |
| 153 | .register(ConfigMapEnvSource.class) |
| 154 | .register(ConfigMapKeySelector.class) |
| 155 | .register(ObjectFieldSelector.class) |
| 156 | .register(ResourceFieldSelector.class) |
| 157 | .register(SecretKeySelector.class) |
| 158 | .register(Lifecycle.class) |
| 159 | .register(SecretEnvSource.class) |
| 160 | .register(ContainerStatus.class) |
| 161 | .register(ContainerState.class) |
| 162 | .register(ContainerStateRunning.class) |
| 163 | .register(ContainerStateTerminated.class) |
| 164 | .register(ContainerStateWaiting.class) |
| 165 | .register(OwnerReference.class) |
| 166 | .register(Probe.class) |
| 167 | .register(ExecAction.class) |
| 168 | .register(HTTPGetAction.class) |
| 169 | .register(HTTPHeader.class) |
| 170 | .register(TCPSocketAction.class) |
| 171 | .register(ContainerPort.class) |
| 172 | .register(ResourceRequirements.class) |
| 173 | .register(SecurityContext.class) |
| 174 | .register(PodSecurityContext.class) |
| 175 | .register(SELinuxOptions.class) |
| 176 | .register(Volume.class) |
| 177 | .register(VolumeDevice.class) |
| 178 | .register(VolumeMount.class) |
| 179 | .register(IntOrString.class) |
| 180 | .register(Toleration.class) |
| 181 | .register(PersistentVolumeClaimVolumeSource.class) |
| 182 | .register(SecretVolumeSource.class) |
| 183 | .register(EmptyDirVolumeSource.class) |
| 184 | .register(Quantity.class) |
| 185 | .register(Capabilities.class) |
| 186 | .register(ConfigMapVolumeSource.class) |
| 187 | .register(KeyToPath.class) |
| 188 | .register(HostPathVolumeSource.class) |
Jian Li | 4a7ce67 | 2019-04-09 15:20:25 +0900 | [diff] [blame] | 189 | .register(Affinity.class) |
| 190 | .register(NodeAffinity.class) |
| 191 | .register(NodeSelector.class) |
| 192 | .register(NodeSelectorTerm.class) |
| 193 | .register(NodeSelectorRequirement.class) |
| 194 | .register(PreferredSchedulingTerm.class) |
| 195 | .register(PodAffinity.class) |
| 196 | .register(WeightedPodAffinityTerm.class) |
| 197 | .register(PodAffinityTerm.class) |
| 198 | .register(LabelSelector.class) |
| 199 | .register(LabelSelectorRequirement.class) |
| 200 | .register(PodAntiAffinity.class) |
Jian Li | b1cd0b0 | 2019-02-21 16:41:40 +0900 | [diff] [blame] | 201 | .register(LinkedHashMap.class) |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 202 | .register(Collection.class) |
| 203 | .build(); |
| 204 | |
| 205 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 206 | protected CoreService coreService; |
| 207 | |
| 208 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 209 | protected StorageService storageService; |
| 210 | |
| 211 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 212 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 213 | |
| 214 | private final MapEventListener<String, Pod> podMapListener = new K8sPodMapListener(); |
| 215 | |
| 216 | private ConsistentMap<String, Pod> podStore; |
| 217 | |
| 218 | @Activate |
| 219 | protected void activate() { |
| 220 | ApplicationId appId = coreService.registerApplication(APP_ID); |
| 221 | podStore = storageService.<String, Pod>consistentMapBuilder() |
| 222 | .withSerializer(Serializer.using(SERIALIZER_K8S_POD)) |
| 223 | .withName("k8s-pod-store") |
| 224 | .withApplicationId(appId) |
| 225 | .build(); |
| 226 | |
| 227 | podStore.addListener(podMapListener); |
| 228 | log.info("Started"); |
| 229 | } |
| 230 | |
| 231 | @Deactivate |
| 232 | protected void deactivate() { |
| 233 | podStore.removeListener(podMapListener); |
| 234 | eventExecutor.shutdown(); |
| 235 | log.info("Stopped"); |
| 236 | } |
| 237 | |
| 238 | @Override |
| 239 | public void createPod(Pod pod) { |
| 240 | podStore.compute(pod.getMetadata().getUid(), (uid, existing) -> { |
| 241 | final String error = pod.getMetadata().getUid() + ERR_DUPLICATE; |
| 242 | checkArgument(existing == null, error); |
| 243 | return pod; |
| 244 | }); |
| 245 | } |
| 246 | |
| 247 | @Override |
| 248 | public void updatePod(Pod pod) { |
| 249 | podStore.compute(pod.getMetadata().getUid(), (uid, existing) -> { |
| 250 | final String error = pod.getMetadata().getUid() + ERR_NOT_FOUND; |
| 251 | checkArgument(existing != null, error); |
| 252 | return pod; |
| 253 | }); |
| 254 | } |
| 255 | |
| 256 | @Override |
| 257 | public Pod removePod(String uid) { |
| 258 | Versioned<Pod> pod = podStore.remove(uid); |
| 259 | if (pod == null) { |
| 260 | final String error = uid + ERR_NOT_FOUND; |
| 261 | throw new IllegalArgumentException(error); |
| 262 | } |
| 263 | return pod.value(); |
| 264 | } |
| 265 | |
| 266 | @Override |
| 267 | public Pod pod(String uid) { |
| 268 | return podStore.asJavaMap().get(uid); |
| 269 | } |
| 270 | |
| 271 | @Override |
| 272 | public Set<Pod> pods() { |
| 273 | return ImmutableSet.copyOf(podStore.asJavaMap().values()); |
| 274 | } |
| 275 | |
| 276 | @Override |
| 277 | public void clear() { |
| 278 | podStore.clear(); |
| 279 | } |
| 280 | |
| 281 | private class K8sPodMapListener implements MapEventListener<String, Pod> { |
| 282 | |
| 283 | @Override |
| 284 | public void event(MapEvent<String, Pod> event) { |
| 285 | |
| 286 | switch (event.type()) { |
| 287 | case INSERT: |
| 288 | log.debug("Kubernetes pod created {}", event.newValue()); |
| 289 | eventExecutor.execute(() -> |
| 290 | notifyDelegate(new K8sPodEvent( |
| 291 | K8S_POD_CREATED, event.newValue().value()))); |
| 292 | break; |
| 293 | case UPDATE: |
| 294 | log.debug("Kubernetes pod updated {}", event.newValue()); |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 295 | eventExecutor.execute(() -> processUpdate(event)); |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 296 | break; |
| 297 | case REMOVE: |
| 298 | log.debug("Kubernetes pod removed {}", event.oldValue()); |
| 299 | eventExecutor.execute(() -> |
| 300 | notifyDelegate(new K8sPodEvent( |
| 301 | K8S_POD_REMOVED, event.oldValue().value()))); |
| 302 | break; |
| 303 | default: |
| 304 | // do nothing |
| 305 | break; |
| 306 | } |
| 307 | } |
Jian Li | 5c75583 | 2019-04-11 23:24:28 +0900 | [diff] [blame] | 308 | |
| 309 | private void processUpdate(MapEvent<String, Pod> event) { |
| 310 | notifyDelegate(new K8sPodEvent( |
| 311 | K8S_POD_UPDATED, event.newValue().value())); |
| 312 | |
| 313 | String oldPhase = event.oldValue().value().getStatus().getPhase(); |
| 314 | String newPhase = event.newValue().value().getStatus().getPhase(); |
| 315 | |
| 316 | if (!PENDING.equals(oldPhase) && PENDING.equals(newPhase)) { |
| 317 | notifyDelegate(new K8sPodEvent( |
| 318 | K8S_POD_PENDING, event.newValue().value())); |
| 319 | } |
| 320 | |
| 321 | if (!RUNNING.equals(oldPhase) && RUNNING.equals(newPhase)) { |
| 322 | notifyDelegate(new K8sPodEvent( |
| 323 | K8S_POD_RUNNING, event.newValue().value())); |
| 324 | } |
| 325 | |
| 326 | if (!SUCCEEDED.equals(oldPhase) && SUCCEEDED.equals(newPhase)) { |
| 327 | notifyDelegate(new K8sPodEvent( |
| 328 | K8S_POD_SUCCEEDED, event.newValue().value())); |
| 329 | } |
| 330 | |
| 331 | if (!FAILED.equals(oldPhase) && FAILED.equals(newPhase)) { |
| 332 | notifyDelegate(new K8sPodEvent( |
| 333 | K8S_POD_FAILED, event.newValue().value())); |
| 334 | } |
| 335 | |
| 336 | if (!UNKNOWN.equals(oldPhase) && UNKNOWN.equals(newPhase)) { |
| 337 | notifyDelegate(new K8sPodEvent( |
| 338 | K8S_POD_UNKNOWN, event.newValue().value())); |
| 339 | } |
| 340 | |
| 341 | if (!COMPLETED.equals(oldPhase) && COMPLETED.equals(newPhase)) { |
| 342 | notifyDelegate(new K8sPodEvent( |
| 343 | K8S_POD_COMPLETED, event.newValue().value())); |
| 344 | } |
| 345 | |
| 346 | if (!CRASH_LOOP_BACK_OFF.equals(oldPhase) && CRASH_LOOP_BACK_OFF.equals(newPhase)) { |
| 347 | notifyDelegate(new K8sPodEvent( |
| 348 | K8S_POD_CRASH_LOOP_BACK_OFF, event.newValue().value())); |
| 349 | } |
| 350 | |
| 351 | Map<String, String> oldAnnot = event.oldValue().value().getMetadata().getAnnotations(); |
| 352 | Map<String, String> newAnnot = event.newValue().value().getMetadata().getAnnotations(); |
| 353 | |
| 354 | if (oldAnnot == null && newAnnot != null) { |
| 355 | notifyDelegate(new K8sPodEvent( |
| 356 | K8S_POD_ANNOTATION_ADDED, event.newValue().value())); |
| 357 | } |
| 358 | } |
Jian Li | 747e136 | 2019-02-19 22:59:46 +0900 | [diff] [blame] | 359 | } |
| 360 | } |