| /* |
| * Copyright 2021-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.kubevirtnetworking.impl; |
| |
| import io.fabric8.kubernetes.api.model.Pod; |
| import io.fabric8.kubernetes.api.model.PodBuilder; |
| import io.fabric8.kubernetes.client.KubernetesClient; |
| import org.json.JSONArray; |
| import org.json.JSONObject; |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
| import org.onosproject.kubevirtnetworking.api.KubevirtNetworkAdminService; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPodAdminService; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPodEvent; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPodListener; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPortAdminService; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigService; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.DriverService; |
| 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.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
| import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getPorts; |
| import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.k8sClient; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Associates the kubevirt container port and pod. |
| */ |
| @Component(immediate = true) |
| public class KubevirtPodPortMapper { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String NETWORK_STATUS_KEY = "k8s.v1.cni.cncf.io/network-status"; |
| private static final String NAME = "name"; |
| private static final String IPS = "ips"; |
| private static final String NETWORK_PREFIX = "default/"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected DriverService driverService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtPortAdminService kubevirtPortAdminService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtNetworkAdminService kubevirtNetworkAdminService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtPodAdminService kubevirtPodAdminService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtApiConfigService kubevirtApiConfigService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected KubevirtNodeService kubevirtNodeService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| |
| private final InternalKubevirtPodListener kubevirtPodListener = |
| new InternalKubevirtPodListener(); |
| |
| private ApplicationId appId; |
| private NodeId localNodeId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| localNodeId = clusterService.getLocalNode().id(); |
| leadershipService.runForLeadership(appId.name()); |
| kubevirtPodAdminService.addListener(kubevirtPodListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| kubevirtPodAdminService.removeListener(kubevirtPodListener); |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| private class InternalKubevirtPodListener implements KubevirtPodListener { |
| |
| private boolean isRelevantHelper() { |
| return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| } |
| |
| @Override |
| public void event(KubevirtPodEvent event) { |
| switch (event.type()) { |
| case KUBEVIRT_POD_UPDATED: |
| eventExecutor.execute(() -> processPodUpdate(event.subject())); |
| break; |
| case KUBEVIRT_POD_REMOVED: |
| eventExecutor.execute(() -> processPodDeletion(event.subject())); |
| break; |
| case KUBEVIRT_POD_CREATED: |
| eventExecutor.execute(() -> processPodCreation(event.subject())); |
| break; |
| default: |
| // do nothing |
| break; |
| } |
| } |
| |
| private void processPodCreation(Pod pod) { |
| if (!isRelevantHelper()) { |
| return; |
| } |
| |
| Map<String, String> annots = pod.getMetadata().getAnnotations(); |
| if (annots == null) { |
| return; |
| } |
| |
| if (!annots.containsKey(NETWORK_STATUS_KEY)) { |
| return; |
| } |
| |
| try { |
| String networkStatusStr = pod.getMetadata().getAnnotations().get(NETWORK_STATUS_KEY); |
| JSONArray networkStatus = new JSONArray(networkStatusStr); |
| for (int i = 0; i < networkStatus.length(); i++) { |
| JSONObject object = networkStatus.getJSONObject(i); |
| String name = object.getString(NAME); |
| KubevirtNetwork jsonNetwork = kubevirtNetworkAdminService.networks().stream() |
| .filter(n -> (NETWORK_PREFIX + n.name()).equals(name)) |
| .findAny().orElse(null); |
| if (jsonNetwork != null) { |
| JSONArray ips = object.getJSONArray(IPS); |
| if (ips != null && ips.length() > 0) { |
| IpAddress ip = IpAddress.valueOf(ips.getString(0)); |
| kubevirtNetworkAdminService.reserveIp(jsonNetwork.networkId(), ip); |
| } |
| } |
| } |
| } catch (Exception e) { |
| log.error("Failed to reserve IP address", e); |
| } |
| |
| Set<KubevirtPort> ports = getPorts(kubevirtNodeService, kubevirtNetworkAdminService.networks(), pod); |
| if (ports.size() == 0) { |
| return; |
| } |
| |
| ports.forEach(port -> { |
| if (kubevirtPortAdminService.port(port.macAddress()) == null) { |
| kubevirtPortAdminService.createPort(port); |
| } |
| }); |
| } |
| |
| private void processPodUpdate(Pod pod) { |
| if (!isRelevantHelper()) { |
| return; |
| } |
| |
| Set<KubevirtPort> ports = getPorts(kubevirtNodeService, kubevirtNetworkAdminService.networks(), pod); |
| if (ports.size() == 0) { |
| return; |
| } |
| |
| for (KubevirtPort port : ports) { |
| if (kubevirtPortAdminService.port(port.macAddress()) != null) { |
| continue; |
| } |
| |
| if (port.ipAddress() == null) { |
| try { |
| IpAddress ip = kubevirtNetworkAdminService.allocateIp(port.networkId()); |
| log.info("IP address {} is allocated from network {}", ip, port.networkId()); |
| port = port.updateIpAddress(ip); |
| |
| // update the POD annotation to inject the allocated IP address |
| String networkStatusStr = pod.getMetadata().getAnnotations().get(NETWORK_STATUS_KEY); |
| JSONArray networkStatus = new JSONArray(networkStatusStr); |
| for (int i = 0; i < networkStatus.length(); i++) { |
| JSONObject object = networkStatus.getJSONObject(i); |
| String name = object.getString(NAME); |
| |
| if (name.equals(NETWORK_PREFIX + port.networkId())) { |
| JSONArray ipsJson = new JSONArray(); |
| ipsJson.put(ip.toString()); |
| object.put(IPS, ipsJson); |
| } |
| } |
| Map<String, String> annots = pod.getMetadata().getAnnotations(); |
| annots.put(NETWORK_STATUS_KEY, networkStatus.toString(4)); |
| |
| KubernetesClient client = k8sClient(kubevirtApiConfigService); |
| |
| if (client == null) { |
| return; |
| } |
| |
| client.pods().inNamespace(pod.getMetadata().getNamespace()) |
| .withName(pod.getMetadata().getName()) |
| .edit(r -> new PodBuilder(r) |
| .editMetadata() |
| .addToAnnotations(annots) |
| .endMetadata().build() |
| ); |
| } catch (Exception e) { |
| log.error("Failed to allocate IP address", e); |
| } |
| } |
| kubevirtPortAdminService.createPort(port); |
| } |
| } |
| |
| private void processPodDeletion(Pod pod) { |
| if (!isRelevantHelper()) { |
| return; |
| } |
| |
| Set<KubevirtPort> ports = getPorts(kubevirtNodeService, kubevirtNetworkAdminService.networks(), pod); |
| if (ports.size() == 0) { |
| return; |
| } |
| |
| ports.forEach(port -> { |
| if (port.ipAddress() != null) { |
| kubevirtNetworkAdminService.releaseIp(port.networkId(), port.ipAddress()); |
| } |
| |
| kubevirtPortAdminService.removePort(port.macAddress()); |
| }); |
| } |
| } |
| } |