Jian Li | 1cf5188 | 2019-02-26 14:41:20 +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 | 096262a | 2020-09-22 23:25:06 +0900 | [diff] [blame] | 19 | import io.fabric8.kubernetes.api.model.FieldsV1; |
Jian Li | 1cf5188 | 2019-02-26 14:41:20 +0900 | [diff] [blame] | 20 | import io.fabric8.kubernetes.api.model.LoadBalancerIngress; |
| 21 | import io.fabric8.kubernetes.api.model.LoadBalancerStatus; |
Jian Li | 096262a | 2020-09-22 23:25:06 +0900 | [diff] [blame] | 22 | import io.fabric8.kubernetes.api.model.ManagedFieldsEntry; |
Jian Li | 1cf5188 | 2019-02-26 14:41:20 +0900 | [diff] [blame] | 23 | import io.fabric8.kubernetes.api.model.ObjectMeta; |
| 24 | import io.fabric8.kubernetes.api.model.extensions.Ingress; |
| 25 | import io.fabric8.kubernetes.api.model.extensions.IngressBackend; |
| 26 | import io.fabric8.kubernetes.api.model.extensions.IngressRule; |
| 27 | import io.fabric8.kubernetes.api.model.extensions.IngressSpec; |
| 28 | import io.fabric8.kubernetes.api.model.extensions.IngressStatus; |
| 29 | import io.fabric8.kubernetes.api.model.extensions.IngressTLS; |
| 30 | import org.onlab.util.KryoNamespace; |
| 31 | import org.onosproject.core.ApplicationId; |
| 32 | import org.onosproject.core.CoreService; |
| 33 | import org.onosproject.k8snetworking.api.K8sIngressEvent; |
| 34 | import org.onosproject.k8snetworking.api.K8sIngressStore; |
| 35 | import org.onosproject.k8snetworking.api.K8sIngressStoreDelegate; |
| 36 | import org.onosproject.store.AbstractStore; |
| 37 | import org.onosproject.store.serializers.KryoNamespaces; |
| 38 | import org.onosproject.store.service.ConsistentMap; |
| 39 | import org.onosproject.store.service.MapEvent; |
| 40 | import org.onosproject.store.service.MapEventListener; |
| 41 | import org.onosproject.store.service.Serializer; |
| 42 | import org.onosproject.store.service.StorageService; |
| 43 | import org.onosproject.store.service.Versioned; |
| 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.util.Set; |
| 52 | import java.util.concurrent.ExecutorService; |
| 53 | |
| 54 | import static com.google.common.base.Preconditions.checkArgument; |
| 55 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 56 | import static org.onlab.util.Tools.groupedThreads; |
| 57 | import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_CREATED; |
| 58 | import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_REMOVED; |
| 59 | import static org.onosproject.k8snetworking.api.K8sIngressEvent.Type.K8S_INGRESS_UPDATED; |
| 60 | import static org.slf4j.LoggerFactory.getLogger; |
| 61 | |
| 62 | /** |
| 63 | * Implementation of kubernetes ingress store using consistent map. |
| 64 | */ |
| 65 | @Component(immediate = true, service = K8sIngressStore.class) |
| 66 | public class DistributedK8sIngressStore |
| 67 | extends AbstractStore<K8sIngressEvent, K8sIngressStoreDelegate> |
| 68 | implements K8sIngressStore { |
| 69 | |
| 70 | private final Logger log = getLogger(getClass()); |
| 71 | |
| 72 | private static final String ERR_NOT_FOUND = " does not exist"; |
| 73 | private static final String ERR_DUPLICATE = " already exists"; |
| 74 | private static final String APP_ID = "org.onosproject.k8snetwork"; |
| 75 | |
| 76 | private static final KryoNamespace |
| 77 | SERIALIZER_K8S_INGRESS = KryoNamespace.newBuilder() |
| 78 | .register(KryoNamespaces.API) |
| 79 | .register(Ingress.class) |
| 80 | .register(ObjectMeta.class) |
| 81 | .register(IngressSpec.class) |
| 82 | .register(IngressStatus.class) |
| 83 | .register(IngressBackend.class) |
| 84 | .register(IngressRule.class) |
| 85 | .register(IngressTLS.class) |
| 86 | .register(LoadBalancerStatus.class) |
| 87 | .register(LoadBalancerIngress.class) |
Jian Li | 096262a | 2020-09-22 23:25:06 +0900 | [diff] [blame] | 88 | .register(ManagedFieldsEntry.class) |
| 89 | .register(FieldsV1.class) |
Jian Li | 1cf5188 | 2019-02-26 14:41:20 +0900 | [diff] [blame] | 90 | .build(); |
| 91 | |
| 92 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 93 | protected CoreService coreService; |
| 94 | |
| 95 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 96 | protected StorageService storageService; |
| 97 | |
| 98 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 99 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 100 | |
| 101 | private final MapEventListener<String, Ingress> ingressMapListener = new K8sIngressMapListener(); |
| 102 | private ConsistentMap<String, Ingress> ingressStore; |
| 103 | |
| 104 | @Activate |
| 105 | protected void activate() { |
| 106 | ApplicationId appId = coreService.registerApplication(APP_ID); |
| 107 | ingressStore = storageService.<String, Ingress>consistentMapBuilder() |
| 108 | .withSerializer(Serializer.using(SERIALIZER_K8S_INGRESS)) |
| 109 | .withName("k8s-ingress-store") |
| 110 | .withApplicationId(appId) |
| 111 | .build(); |
| 112 | |
| 113 | ingressStore.addListener(ingressMapListener); |
| 114 | log.info("Started"); |
| 115 | } |
| 116 | |
| 117 | @Deactivate |
| 118 | protected void deactivate() { |
| 119 | ingressStore.removeListener(ingressMapListener); |
| 120 | eventExecutor.shutdown(); |
| 121 | log.info("Stopped"); |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public void createIngress(Ingress ingress) { |
| 126 | ingressStore.compute(ingress.getMetadata().getUid(), (uid, existing) -> { |
| 127 | final String error = ingress.getMetadata().getUid() + ERR_DUPLICATE; |
| 128 | checkArgument(existing == null, error); |
| 129 | return ingress; |
| 130 | }); |
| 131 | } |
| 132 | |
| 133 | @Override |
| 134 | public void updateIngress(Ingress ingress) { |
| 135 | ingressStore.compute(ingress.getMetadata().getUid(), (uid, existing) -> { |
| 136 | final String error = ingress.getMetadata().getUid() + ERR_NOT_FOUND; |
| 137 | checkArgument(existing != null, error); |
| 138 | return ingress; |
| 139 | }); |
| 140 | } |
| 141 | |
| 142 | @Override |
| 143 | public Ingress removeIngress(String uid) { |
| 144 | Versioned<Ingress> ingress = ingressStore.remove(uid); |
| 145 | if (ingress == null) { |
| 146 | final String error = uid + ERR_NOT_FOUND; |
| 147 | throw new IllegalArgumentException(error); |
| 148 | } |
| 149 | return ingress.value(); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | public Ingress ingress(String uid) { |
| 154 | return ingressStore.asJavaMap().get(uid); |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public Set<Ingress> ingresses() { |
| 159 | return ImmutableSet.copyOf(ingressStore.asJavaMap().values()); |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | public void clear() { |
| 164 | ingressStore.clear(); |
| 165 | } |
| 166 | |
| 167 | private class K8sIngressMapListener implements MapEventListener<String, Ingress> { |
| 168 | |
| 169 | @Override |
| 170 | public void event(MapEvent<String, Ingress> event) { |
| 171 | |
| 172 | switch (event.type()) { |
| 173 | case INSERT: |
| 174 | log.debug("Kubernetes ingress created {}", event.newValue()); |
| 175 | eventExecutor.execute(() -> |
| 176 | notifyDelegate(new K8sIngressEvent( |
| 177 | K8S_INGRESS_CREATED, event.newValue().value()))); |
| 178 | break; |
| 179 | case UPDATE: |
| 180 | log.debug("Kubernetes ingress updated {}", event.newValue()); |
| 181 | eventExecutor.execute(() -> |
| 182 | notifyDelegate(new K8sIngressEvent( |
| 183 | K8S_INGRESS_UPDATED, event.newValue().value()))); |
| 184 | break; |
| 185 | case REMOVE: |
| 186 | log.debug("Kubernetes ingress removed {}", event.oldValue()); |
| 187 | eventExecutor.execute(() -> |
| 188 | notifyDelegate(new K8sIngressEvent( |
| 189 | K8S_INGRESS_REMOVED, event.oldValue().value()))); |
| 190 | break; |
| 191 | default: |
| 192 | // do nothing |
| 193 | break; |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | } |