Import k8s client deps, support inject k8s API server config
Change-Id: Iaf246a06462b8a878e93ef3f98da399c3600b129
diff --git a/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/DistributedK8sApiConfigStore.java b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/DistributedK8sApiConfigStore.java
new file mode 100644
index 0000000..321aac0
--- /dev/null
+++ b/apps/k8s-node/app/src/main/java/org/onosproject/k8snode/impl/DistributedK8sApiConfigStore.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.k8snode.impl;
+
+import com.google.common.collect.ImmutableSet;
+import org.onlab.packet.IpAddress;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.k8snode.api.DefaultK8sApiConfig;
+import org.onosproject.k8snode.api.K8sApiConfig;
+import org.onosproject.k8snode.api.K8sApiConfigEvent;
+import org.onosproject.k8snode.api.K8sApiConfigStore;
+import org.onosproject.k8snode.api.K8sApiConfigStoreDelegate;
+import org.onosproject.store.AbstractStore;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.MapEvent;
+import org.onosproject.store.service.MapEventListener;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
+import org.slf4j.Logger;
+
+import java.util.Collection;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static java.util.concurrent.Executors.newSingleThreadExecutor;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_CREATED;
+import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_REMOVED;
+import static org.onosproject.k8snode.api.K8sApiConfigEvent.Type.K8S_API_CONFIG_UPDATED;
+import static org.onosproject.k8snode.util.K8sNodeUtil.endpoint;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Implementation of kubernetes API config store using consistent map.
+ */
+@Component(immediate = true, service = K8sApiConfigStore.class)
+public class DistributedK8sApiConfigStore
+ extends AbstractStore<K8sApiConfigEvent, K8sApiConfigStoreDelegate>
+ implements K8sApiConfigStore {
+
+ private final Logger log = getLogger(getClass());
+
+ private static final String ERR_NOT_FOUND = " does not exist";
+ private static final String ERR_DUPLICATE = " already exists";
+ private static final String APP_ID = "org.onosproject.k8snode";
+
+ private static final KryoNamespace
+ SERIALIZER_K8S_API_CONFIG = KryoNamespace.newBuilder()
+ .register(KryoNamespaces.API)
+ .register(K8sApiConfig.class)
+ .register(DefaultK8sApiConfig.class)
+ .register(K8sApiConfig.Scheme.class)
+ .register(Collection.class)
+ .build();
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY)
+ protected CoreService coreService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY)
+ protected StorageService storageService;
+
+ private final ExecutorService eventExecutor = newSingleThreadExecutor(
+ groupedThreads(this.getClass().getSimpleName(), "event-handler", log));
+
+ private final MapEventListener<String, K8sApiConfig> apiConfigMapListener =
+ new K8sApiConfigMapListener();
+ private ConsistentMap<String, K8sApiConfig> apiConfigStore;
+
+ @Activate
+ protected void activate() {
+ ApplicationId appId = coreService.registerApplication(APP_ID);
+ apiConfigStore = storageService.<String, K8sApiConfig>consistentMapBuilder()
+ .withSerializer(Serializer.using(SERIALIZER_K8S_API_CONFIG))
+ .withName("k8s-apiconfig-store")
+ .withApplicationId(appId)
+ .build();
+ apiConfigStore.addListener(apiConfigMapListener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ protected void deactivate() {
+ apiConfigStore.removeListener(apiConfigMapListener);
+ eventExecutor.shutdown();
+ log.info("Stopped");
+ }
+
+ @Override
+ public void createApiConfig(K8sApiConfig config) {
+ String key = endpoint(config);
+ apiConfigStore.compute(key, (endpoint, existing) -> {
+ final String error = key + ERR_DUPLICATE;
+ checkArgument(existing == null, error);
+ return config;
+ });
+ }
+
+ @Override
+ public void updateApiConfig(K8sApiConfig config) {
+ String key = endpoint(config);
+ apiConfigStore.compute(key, (endpoint, existing) -> {
+ final String error = key + ERR_NOT_FOUND;
+ checkArgument(existing != null, error);
+ return config;
+ });
+ }
+
+ @Override
+ public K8sApiConfig removeApiConfig(String endpoint) {
+ Versioned<K8sApiConfig> apiConfig = apiConfigStore.remove(endpoint);
+ if (apiConfig == null) {
+ final String error = endpoint + ERR_NOT_FOUND;
+ throw new IllegalArgumentException(error);
+ }
+ return apiConfig.value();
+ }
+
+ @Override
+ public K8sApiConfig removeApiConfig(K8sApiConfig.Scheme scheme,
+ IpAddress ipAddress, int port) {
+ String key = endpoint(scheme, ipAddress, port);
+ return removeApiConfig(key);
+ }
+
+ @Override
+ public Set<K8sApiConfig> apiConfigs() {
+ return ImmutableSet.copyOf(apiConfigStore.asJavaMap().values());
+ }
+
+ @Override
+ public K8sApiConfig apiConfig(String endpoint) {
+ return apiConfigStore.asJavaMap().get(endpoint);
+ }
+
+ @Override
+ public K8sApiConfig apiConfig(K8sApiConfig.Scheme scheme,
+ IpAddress ipAddress, int port) {
+ String key = endpoint(scheme, ipAddress, port);
+ return apiConfig(key);
+ }
+
+ private class K8sApiConfigMapListener
+ implements MapEventListener<String, K8sApiConfig> {
+
+ @Override
+ public void event(MapEvent<String, K8sApiConfig> event) {
+ switch (event.type()) {
+ case INSERT:
+ log.debug("Kubernetes API config created {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sApiConfigEvent(
+ K8S_API_CONFIG_CREATED, event.newValue().value()
+ )));
+ break;
+ case UPDATE:
+ log.debug("Kubernetes API config updated {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sApiConfigEvent(
+ K8S_API_CONFIG_UPDATED, event.newValue().value()
+ )));
+ break;
+ case REMOVE:
+ log.debug("Kubernetes API config removed {}", event.oldValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sApiConfigEvent(
+ K8S_API_CONFIG_REMOVED, event.oldValue().value()
+ )));
+ break;
+ default:
+ // do nothing
+ break;
+ }
+ }
+ }
+}