| /* |
| * 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.k8snetworking.impl; |
| |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.k8snetworking.api.DefaultK8sIpam; |
| import org.onosproject.k8snetworking.api.K8sIpam; |
| import org.onosproject.k8snetworking.api.K8sIpamAdminService; |
| import org.onosproject.k8snetworking.api.K8sIpamEvent; |
| import org.onosproject.k8snetworking.api.K8sIpamListener; |
| import org.onosproject.k8snetworking.api.K8sIpamService; |
| import org.onosproject.k8snetworking.api.K8sIpamStore; |
| 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.Set; |
| import java.util.stream.Collectors; |
| |
| import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides implementation of administering and interfacing kubernetes IPAM. |
| */ |
| @Component( |
| immediate = true, |
| service = {K8sIpamAdminService.class, K8sIpamService.class} |
| ) |
| public class K8sIpamManager |
| extends ListenerRegistry<K8sIpamEvent, K8sIpamListener> |
| implements K8sIpamAdminService, K8sIpamService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sIpamStore k8sIpamStore; |
| |
| private ApplicationId appId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public IpAddress allocateIp(String networkId) { |
| IpAddress availableIp = availableIps(networkId).stream() |
| .findFirst().orElse(null); |
| if (availableIp != null) { |
| String ipamId = networkId + "-" + availableIp.toString(); |
| k8sIpamStore.removeAvailableIp(ipamId); |
| k8sIpamStore.createAllocatedIp( |
| new DefaultK8sIpam(ipamId, availableIp, networkId)); |
| |
| log.info("Allocate a new IP {}", availableIp.toString()); |
| |
| return availableIp; |
| } else { |
| log.warn("No IPs are available for allocating."); |
| } |
| return null; |
| } |
| |
| @Override |
| public void reserveIp(String networkId, IpAddress ipAddress) { |
| if (!allocatedIps(networkId).contains(ipAddress)) { |
| String ipamId = networkId + "-" + ipAddress.toString(); |
| k8sIpamStore.removeAvailableIp(ipamId); |
| k8sIpamStore.createAllocatedIp( |
| new DefaultK8sIpam(ipamId, ipAddress, networkId)); |
| |
| log.info("Reserved the IP {}", ipAddress.toString()); |
| } |
| } |
| |
| @Override |
| public boolean releaseIp(String networkId, IpAddress ipAddress) { |
| IpAddress releasedIp = allocatedIps(networkId).stream() |
| .filter(ip -> ip.equals(ipAddress)) |
| .findFirst().orElse(null); |
| if (releasedIp != null) { |
| String ipamId = networkId + "-" + releasedIp.toString(); |
| k8sIpamStore.removeAllocatedIp(ipamId); |
| k8sIpamStore.createAvailableIp( |
| new DefaultK8sIpam(ipamId, releasedIp, networkId)); |
| |
| log.info("Release the IP {}", releasedIp.toString()); |
| |
| return true; |
| } else { |
| log.warn("Failed to find requested IP {} for releasing...", ipAddress.toString()); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public void initializeIpPool(String networkId, Set<IpAddress> ipAddresses) { |
| ipAddresses.forEach(ip -> { |
| String ipamId = networkId + "-" + ip; |
| K8sIpam ipam = new DefaultK8sIpam(ipamId, ip, networkId); |
| k8sIpamStore.createAvailableIp(ipam); |
| }); |
| } |
| |
| @Override |
| public void purgeIpPool(String networkId) { |
| k8sIpamStore.clear(networkId); |
| } |
| |
| @Override |
| public Set<IpAddress> allocatedIps(String networkId) { |
| return k8sIpamStore.allocatedIps().stream() |
| .filter(i -> i.networkId().equals(networkId)) |
| .map(K8sIpam::ipAddress).collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public Set<IpAddress> availableIps(String networkId) { |
| return k8sIpamStore.availableIps().stream() |
| .filter(i -> i.networkId().equals(networkId)) |
| .map(K8sIpam::ipAddress).collect(Collectors.toSet()); |
| } |
| } |