| /* |
| * Copyright 2020-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.kubevirtnode.impl; |
| |
| import com.google.common.base.Strings; |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfig; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigAdminService; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigEvent; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigListener; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigService; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigStore; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigStoreDelegate; |
| import org.onosproject.store.service.StorageService; |
| 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.concurrent.ExecutorService; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.kubevirtnode.util.KubevirtNodeUtil.endpoint; |
| import static org.onosproject.kubevirtnode.util.KubevirtNodeUtil.resolveHostname; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Service administering the inventory of KubeVirt API configs. |
| */ |
| @Component( |
| immediate = true, |
| service = {KubevirtApiConfigService.class, KubevirtApiConfigAdminService.class } |
| ) |
| public class KubevirtApiConfigManager |
| extends ListenerRegistry<KubevirtApiConfigEvent, KubevirtApiConfigListener> |
| implements KubevirtApiConfigService, KubevirtApiConfigAdminService { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final int API_SERVER_PORT = 443; |
| |
| private static final String MSG_CONFIG = "KubeVirt API config %s %s"; |
| private static final String MSG_CREATED = "created"; |
| private static final String MSG_UPDATED = "updated"; |
| private static final String MSG_REMOVED = "removed"; |
| |
| private static final String ERR_NULL_CONFIG = "KubeVirt API config cannot be null"; |
| private static final String ERR_NULL_ENDPOINT = "KubeVirt API endpoint cannot be null"; |
| private static final String ERR_UNIQUE_CONFIG = "KubeVirt API config should be unique"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtApiConfigStore configStore; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private final KubevirtApiConfigStoreDelegate delegate = new InternalApiConfigStoreDelegate(); |
| |
| private ApplicationId appId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_ID); |
| configStore.setDelegate(delegate); |
| |
| leadershipService.runForLeadership(appId.name()); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| configStore.unsetDelegate(delegate); |
| |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createApiConfig(KubevirtApiConfig config) { |
| checkNotNull(config, ERR_NULL_CONFIG); |
| checkArgument(configStore.apiConfigs().size() == 0, ERR_UNIQUE_CONFIG); |
| |
| KubevirtApiConfig newConfig = config; |
| if (config.apiServerFqdn() != null) { |
| IpAddress apiServerIp = resolveHostname(config.apiServerFqdn()); |
| if (apiServerIp != null) { |
| newConfig = config.updateIpAddress(apiServerIp); |
| newConfig = newConfig.updatePort(API_SERVER_PORT); |
| } else { |
| log.warn("API server IP is not resolved for host {}", config.apiServerFqdn()); |
| } |
| } |
| |
| configStore.createApiConfig(newConfig); |
| log.info(String.format(MSG_CONFIG, endpoint(newConfig), MSG_CREATED)); |
| } |
| |
| @Override |
| public void updateApiConfig(KubevirtApiConfig config) { |
| checkNotNull(config, ERR_NULL_CONFIG); |
| configStore.updateApiConfig(config); |
| log.info(String.format(MSG_CONFIG, endpoint(config), MSG_UPDATED)); |
| } |
| |
| @Override |
| public KubevirtApiConfig removeApiConfig(String endpoint) { |
| checkArgument(!Strings.isNullOrEmpty(endpoint), ERR_NULL_ENDPOINT); |
| KubevirtApiConfig config = configStore.removeApiConfig(endpoint); |
| log.info(String.format(MSG_CONFIG, endpoint, MSG_REMOVED)); |
| return config; |
| } |
| |
| @Override |
| public KubevirtApiConfig apiConfig() { |
| return configStore.apiConfigs().stream().findAny().orElse(null); |
| } |
| |
| private class InternalApiConfigStoreDelegate implements KubevirtApiConfigStoreDelegate { |
| |
| @Override |
| public void notify(KubevirtApiConfigEvent event) { |
| if (event != null) { |
| log.trace("send KubeVirt API config event {}", event); |
| process(event); |
| } |
| } |
| } |
| } |