| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * 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.opencord.cordvtn.impl; |
| |
| import com.google.common.base.Strings; |
| import com.jcraft.jsch.Session; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.behaviour.BridgeDescription; |
| import org.onosproject.net.behaviour.DefaultBridgeDescription; |
| import org.onosproject.net.behaviour.InterfaceConfig; |
| import org.onosproject.net.behaviour.TunnelEndPoints; |
| import org.onosproject.net.behaviour.TunnelKeys; |
| import org.opencord.cordvtn.api.ConnectionHandler; |
| import org.opencord.cordvtn.api.CordVtnConfig; |
| import org.opencord.cordvtn.api.CordVtnNode; |
| import org.opencord.cordvtn.api.CordVtnNodeState; |
| import org.opencord.cordvtn.api.InstanceService; |
| import org.opencord.cordvtn.api.NetworkAddress; |
| import org.opencord.cordvtn.api.SshAccessInfo; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.BridgeConfig; |
| import org.onosproject.net.behaviour.BridgeName; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| import org.onosproject.net.behaviour.DefaultTunnelDescription; |
| import org.onosproject.net.behaviour.TunnelDescription; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.NetworkConfigService; |
| import org.onosproject.net.device.DeviceAdminService; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.ovsdb.controller.OvsdbClientService; |
| import org.onosproject.ovsdb.controller.OvsdbController; |
| import org.onosproject.ovsdb.controller.OvsdbNodeId; |
| 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.slf4j.Logger; |
| |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.stream.Collectors; |
| |
| 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.net.AnnotationKeys.PORT_NAME; |
| import static org.onosproject.net.Device.Type.SWITCH; |
| import static org.onosproject.net.behaviour.TunnelDescription.Type.VXLAN; |
| import static org.opencord.cordvtn.api.Constants.*; |
| import static org.opencord.cordvtn.impl.RemoteIpCommandUtil.*; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Reads node information from the network config file and handles the config |
| * update events. |
| * Only a leader controller performs the node addition or deletion. |
| */ |
| @Component(immediate = true) |
| @Service(value = CordVtnNodeManager.class) |
| public class CordVtnNodeManager { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final KryoNamespace.Builder NODE_SERIALIZER = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(CordVtnNode.class) |
| .register(NodeState.class) |
| .register(SshAccessInfo.class) |
| .register(NetworkAddress.class); |
| |
| private static final int DPID_BEGIN = 3; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry configRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceAdminService adminService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OvsdbController ovsdbController; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected InstanceService instanceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CordVtnPipeline pipeline; |
| |
| private final ExecutorService eventExecutor = |
| newSingleThreadExecutor(groupedThreads("onos/cordvtn-node", "event-handler", log)); |
| |
| private final NetworkConfigListener configListener = new InternalConfigListener(); |
| private final DeviceListener deviceListener = new InternalDeviceListener(); |
| private final MapEventListener<String, CordVtnNode> nodeStoreListener = new InternalMapListener(); |
| |
| private final OvsdbHandler ovsdbHandler = new OvsdbHandler(); |
| private final BridgeHandler bridgeHandler = new BridgeHandler(); |
| |
| private ConsistentMap<String, CordVtnNode> nodeStore; |
| private ApplicationId appId; |
| private NodeId localNodeId; |
| |
| private enum NodeState implements CordVtnNodeState { |
| |
| INIT { |
| @Override |
| public void process(CordVtnNodeManager nodeManager, CordVtnNode node) { |
| // make sure there is OVSDB connection |
| if (!nodeManager.isOvsdbConnected(node)) { |
| nodeManager.connectOvsdb(node); |
| return; |
| } |
| nodeManager.createIntegrationBridge(node); |
| } |
| }, |
| BRIDGE_CREATED { |
| @Override |
| public void process(CordVtnNodeManager nodeManager, CordVtnNode node) { |
| // make sure there is OVSDB connection |
| if (!nodeManager.isOvsdbConnected(node)) { |
| nodeManager.connectOvsdb(node); |
| return; |
| } |
| |
| nodeManager.createTunnelInterface(node); |
| nodeManager.addSystemInterface(node, node.dataIface()); |
| if (node.hostMgmtIface().isPresent()) { |
| nodeManager.addSystemInterface(node, node.hostMgmtIface().get()); |
| } |
| } |
| }, |
| PORTS_ADDED { |
| @Override |
| public void process(CordVtnNodeManager nodeManager, CordVtnNode node) { |
| nodeManager.setIpAddress(node); |
| } |
| }, |
| COMPLETE { |
| @Override |
| public void process(CordVtnNodeManager nodeManager, CordVtnNode node) { |
| nodeManager.postInit(node); |
| } |
| }, |
| INCOMPLETE { |
| @Override |
| public void process(CordVtnNodeManager nodeManager, CordVtnNode node) { |
| } |
| }; |
| |
| public abstract void process(CordVtnNodeManager nodeManager, CordVtnNode node); |
| } |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.getAppId(CORDVTN_APP_ID); |
| |
| localNodeId = clusterService.getLocalNode().id(); |
| leadershipService.runForLeadership(appId.name()); |
| |
| nodeStore = storageService.<String, CordVtnNode>consistentMapBuilder() |
| .withSerializer(Serializer.using(NODE_SERIALIZER.build())) |
| .withName("cordvtn-nodestore") |
| .withApplicationId(appId) |
| .build(); |
| |
| nodeStore.addListener(nodeStoreListener); |
| deviceService.addListener(deviceListener); |
| configService.addListener(configListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| configService.removeListener(configListener); |
| deviceService.removeListener(deviceListener); |
| nodeStore.removeListener(nodeStoreListener); |
| |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| /** |
| * Adds or updates a new node to the service. |
| * |
| * @param node cordvtn node |
| */ |
| public void addOrUpdateNode(CordVtnNode node) { |
| checkNotNull(node); |
| nodeStore.put(node.hostname(), CordVtnNode.getUpdatedNode(node, getNodeState(node))); |
| } |
| |
| /** |
| * Deletes a node from the service. |
| * |
| * @param node cordvtn node |
| */ |
| public void deleteNode(CordVtnNode node) { |
| checkNotNull(node); |
| OvsdbClientService ovsdbClient = getOvsdbClient(node); |
| if (ovsdbClient != null && ovsdbClient.isConnected()) { |
| ovsdbClient.disconnect(); |
| } |
| nodeStore.remove(node.hostname()); |
| } |
| |
| /** |
| * Returns node initialization state. |
| * |
| * @param node cordvtn node |
| * @return true if initial node setup is completed, otherwise false |
| */ |
| public boolean isNodeInitComplete(CordVtnNode node) { |
| checkNotNull(node); |
| return getNodeState(node).equals(NodeState.COMPLETE); |
| } |
| |
| /** |
| * Returns the number of the nodes known to the service. |
| * |
| * @return number of nodes |
| */ |
| public int getNodeCount() { |
| return nodeStore.size(); |
| } |
| |
| /** |
| * Returns all nodes known to the service. |
| * |
| * @return list of nodes |
| */ |
| public List<CordVtnNode> getNodes() { |
| return nodeStore.values().stream().map(Versioned::value).collect(Collectors.toList()); |
| } |
| |
| /** |
| * Returns all nodes in complete state. |
| * |
| * @return set of nodes |
| */ |
| public Set<CordVtnNode> completeNodes() { |
| return getNodes().stream().filter(this::isNodeStateComplete) |
| .collect(Collectors.toSet()); |
| } |
| |
| /** |
| * Returns physical data plane port number of a given device. |
| * |
| * @param deviceId integration bridge device id |
| * @return port number; null otherwise |
| */ |
| public PortNumber dataPort(DeviceId deviceId) { |
| CordVtnNode node = nodeByBridgeId(deviceId); |
| if (node == null) { |
| log.warn("Failed to get node for {}", deviceId); |
| return null; |
| } |
| |
| Optional<PortNumber> port = getPortNumber(deviceId, node.dataIface()); |
| return port.isPresent() ? port.get() : null; |
| } |
| |
| /** |
| * Returns physical data plane IP address of a given device. |
| * |
| * @param deviceId integration bridge device id |
| * @return ip address; null otherwise |
| */ |
| public IpAddress dataIp(DeviceId deviceId) { |
| CordVtnNode node = nodeByBridgeId(deviceId); |
| if (node == null) { |
| log.warn("Failed to get node for {}", deviceId); |
| return null; |
| } |
| return node.dataIp().ip(); |
| } |
| |
| /** |
| * Returns tunnel port number of a given device. |
| * |
| * @param deviceId integration bridge device id |
| * @return port number |
| */ |
| public PortNumber tunnelPort(DeviceId deviceId) { |
| Optional<PortNumber> port = getPortNumber(deviceId, DEFAULT_TUNNEL); |
| return port.isPresent() ? port.get() : null; |
| } |
| |
| /** |
| * Returns host management interface port number if exists. |
| * |
| * @param deviceId integration bridge device id |
| * @return port number; null if it does not exist |
| */ |
| public PortNumber hostManagementPort(DeviceId deviceId) { |
| CordVtnNode node = nodeByBridgeId(deviceId); |
| if (node == null) { |
| log.warn("Failed to get node for {}", deviceId); |
| return null; |
| } |
| |
| if (node.hostMgmtIface().isPresent()) { |
| Optional<PortNumber> port = getPortNumber(deviceId, node.hostMgmtIface().get()); |
| return port.isPresent() ? port.get() : null; |
| } else { |
| return null; |
| } |
| } |
| |
| private Optional<PortNumber> getPortNumber(DeviceId deviceId, String portName) { |
| PortNumber port = deviceService.getPorts(deviceId).stream() |
| .filter(p -> p.annotations().value(AnnotationKeys.PORT_NAME).equals(portName) && |
| p.isEnabled()) |
| .map(Port::number) |
| .findAny() |
| .orElse(null); |
| return Optional.ofNullable(port); |
| } |
| |
| /** |
| * Returns if current node state saved in nodeStore is COMPLETE or not. |
| * |
| * @param node cordvtn node |
| * @return true if it's complete state, otherwise false |
| */ |
| private boolean isNodeStateComplete(CordVtnNode node) { |
| checkNotNull(node); |
| |
| // the state saved in nodeStore can be wrong if IP address settings are changed |
| // after the node init has been completed since there's no way to detect it |
| // getNodeState and checkNodeInitState always return correct answer but can be slow |
| Versioned<CordVtnNode> versionedNode = nodeStore.get(node.hostname()); |
| CordVtnNodeState state = versionedNode.value().state(); |
| return state != null && state.equals(NodeState.COMPLETE); |
| } |
| |
| /** |
| * Initiates node to serve virtual tenant network. |
| * |
| * @param node cordvtn node |
| */ |
| private void initNode(CordVtnNode node) { |
| checkNotNull(node); |
| |
| NodeState state = (NodeState) node.state(); |
| log.debug("Processing node: {} state: {}", node.hostname(), state); |
| |
| state.process(this, node); |
| } |
| |
| /** |
| * Performs tasks after node initialization. |
| * It disconnects unnecessary OVSDB connection and installs initial flow |
| * rules on the device. |
| * |
| * @param node cordvtn node |
| */ |
| private void postInit(CordVtnNode node) { |
| checkNotNull(node); |
| |
| // disconnect OVSDB session once the node bootstrap is done |
| OvsdbClientService ovsdbClient = getOvsdbClient(node); |
| if (ovsdbClient != null && ovsdbClient.isConnected()) { |
| ovsdbClient.disconnect(); |
| } |
| |
| pipeline.initPipeline(node); |
| |
| // adds existing instances to the host list |
| deviceService.getPorts(node.integrationBridgeId()).stream() |
| .filter(port -> !node.systemIfaces().contains(portName(port)) && |
| !port.number().equals(PortNumber.LOCAL) && |
| port.isEnabled()) |
| .forEach(port -> instanceService.addInstance(connectPoint(port))); |
| |
| // removes stale instances from the host list |
| hostService.getHosts().forEach(host -> { |
| if (deviceService.getPort( |
| host.location().deviceId(), |
| host.location().port()) == null) { |
| instanceService.removeInstance(host.location()); |
| } |
| }); |
| |
| log.info("Finished init {}", node.hostname()); |
| } |
| |
| /** |
| * Sets a new state for a given cordvtn node. |
| * |
| * @param node cordvtn node |
| * @param newState new node state |
| */ |
| private void setNodeState(CordVtnNode node, NodeState newState) { |
| checkNotNull(node); |
| log.debug("Changed {} state: {}", node.hostname(), newState); |
| nodeStore.put(node.hostname(), CordVtnNode.getUpdatedNode(node, newState)); |
| } |
| |
| /** |
| * Checks current state of a given cordvtn node and returns it. |
| * |
| * @param node cordvtn node |
| * @return node state |
| */ |
| private NodeState getNodeState(CordVtnNode node) { |
| checkNotNull(node); |
| if (!isIntegrationBridgeCreated(node)) { |
| return NodeState.INIT; |
| } |
| for (String iface : node.systemIfaces()) { |
| if (!isIfaceCreated(node, iface)) { |
| return NodeState.BRIDGE_CREATED; |
| } |
| } |
| if (!isIpAddressSet(node)) { |
| return NodeState.PORTS_ADDED; |
| } |
| return NodeState.COMPLETE; |
| } |
| |
| /** |
| * Returns connection state of OVSDB server for a given node. |
| * |
| * @param node cordvtn node |
| * @return true if it is connected, false otherwise |
| */ |
| private boolean isOvsdbConnected(CordVtnNode node) { |
| checkNotNull(node); |
| OvsdbClientService ovsdbClient = getOvsdbClient(node); |
| return deviceService.isAvailable(node.ovsdbId()) && |
| ovsdbClient != null && |
| ovsdbClient.isConnected(); |
| } |
| |
| /** |
| * Connects to OVSDB server for a given node. |
| * |
| * @param node cordvtn node |
| */ |
| private void connectOvsdb(CordVtnNode node) { |
| checkNotNull(node); |
| ovsdbController.connect(node.hostMgmtIp().ip(), node.ovsdbPort()); |
| } |
| |
| /** |
| * Returns OVSDB client for a given node. |
| * |
| * @param node cordvtn node |
| * @return ovsdb client, or null if there's no ovsdb connection |
| */ |
| private OvsdbClientService getOvsdbClient(CordVtnNode node) { |
| checkNotNull(node); |
| OvsdbNodeId ovsdb = new OvsdbNodeId( |
| node.hostMgmtIp().ip(), node.ovsdbPort().toInt()); |
| return ovsdbController.getOvsdbClient(ovsdb); |
| } |
| |
| private void createIntegrationBridge(CordVtnNode node) { |
| Device device = deviceService.getDevice(node.ovsdbId()); |
| if (device == null || !device.is(BridgeConfig.class)) { |
| log.error("Failed to create integration bridge on {}", node.ovsdbId()); |
| return; |
| } |
| |
| List<ControllerInfo> controllers = clusterService.getNodes().stream() |
| .map(controller -> new ControllerInfo(controller.ip(), OF_PORT, "tcp")) |
| .collect(Collectors.toList()); |
| |
| String dpid = node.integrationBridgeId().toString().substring(DPID_BEGIN); |
| BridgeDescription bridgeDesc = DefaultBridgeDescription.builder() |
| .name(INTEGRATION_BRIDGE) |
| .failMode(BridgeDescription.FailMode.SECURE) |
| .datapathId(dpid) |
| .disableInBand() |
| .controllers(controllers) |
| .build(); |
| |
| BridgeConfig bridgeConfig = device.as(BridgeConfig.class); |
| bridgeConfig.addBridge(bridgeDesc); |
| } |
| |
| private void createTunnelInterface(CordVtnNode node) { |
| Device device = deviceService.getDevice(node.ovsdbId()); |
| if (device == null || !device.is(InterfaceConfig.class)) { |
| log.error("Failed to create tunnel interface on {}", node.ovsdbId()); |
| return; |
| } |
| |
| TunnelDescription tunnelDesc = DefaultTunnelDescription.builder() |
| .deviceId(INTEGRATION_BRIDGE) |
| .ifaceName(DEFAULT_TUNNEL) |
| .type(VXLAN) |
| .remote(TunnelEndPoints.flowTunnelEndpoint()) |
| .key(TunnelKeys.flowTunnelKey()) |
| .build(); |
| |
| InterfaceConfig ifaceConfig = device.as(InterfaceConfig.class); |
| ifaceConfig.addTunnelMode(DEFAULT_TUNNEL, tunnelDesc); |
| } |
| |
| private void addSystemInterface(CordVtnNode node, String ifaceName) { |
| Session session = connect(node.sshInfo()); |
| if (session == null || !isInterfaceUp(session, ifaceName)) { |
| log.warn("Interface {} is not available on {}", ifaceName, node.hostname()); |
| disconnect(session); |
| return; |
| } else { |
| disconnect(session); |
| } |
| |
| Device device = deviceService.getDevice(node.ovsdbId()); |
| if (!device.is(BridgeConfig.class)) { |
| log.error("BridgeConfig is not supported for {}", node.ovsdbId()); |
| return; |
| } |
| |
| BridgeConfig bridgeConfig = device.as(BridgeConfig.class); |
| bridgeConfig.addPort(BridgeName.bridgeName(INTEGRATION_BRIDGE), ifaceName); |
| } |
| |
| /** |
| * Flushes IP address from data plane interface and adds data plane IP address |
| * to integration bridge. |
| * |
| * @param node cordvtn node |
| */ |
| private void setIpAddress(CordVtnNode node) { |
| Session session = connect(node.sshInfo()); |
| if (session == null) { |
| log.debug("Failed to SSH to {}", node.hostname()); |
| return; |
| } |
| getCurrentIps(session, INTEGRATION_BRIDGE).stream() |
| .filter(ip -> !ip.equals(node.localMgmtIp().ip())) |
| .filter(ip -> !ip.equals(node.dataIp().ip())) |
| .forEach(ip -> deleteIp(session, ip, INTEGRATION_BRIDGE)); |
| |
| boolean result = flushIp(session, node.dataIface()) && |
| setInterfaceUp(session, node.dataIface()) && |
| addIp(session, node.dataIp(), INTEGRATION_BRIDGE) && |
| addIp(session, node.localMgmtIp(), INTEGRATION_BRIDGE) && |
| setInterfaceUp(session, INTEGRATION_BRIDGE); |
| |
| disconnect(session); |
| if (result) { |
| setNodeState(node, NodeState.COMPLETE); |
| } |
| } |
| |
| private boolean isIntegrationBridgeCreated(CordVtnNode node) { |
| return deviceService.getDevice(node.integrationBridgeId()) != null && |
| deviceService.isAvailable(node.integrationBridgeId()); |
| } |
| |
| private boolean isIfaceCreated(CordVtnNode node, String ifaceName) { |
| if (Strings.isNullOrEmpty(ifaceName)) { |
| return false; |
| } |
| return deviceService.getPorts(node.integrationBridgeId()).stream() |
| .filter(p -> portName(p).contains(ifaceName) && |
| p.isEnabled()) |
| .findAny() |
| .isPresent(); |
| } |
| |
| /** |
| * Checks if the IP addresses are correctly set. |
| * |
| * @param node cordvtn node |
| * @return true if the IP is set, false otherwise |
| */ |
| private boolean isIpAddressSet(CordVtnNode node) { |
| Session session = connect(node.sshInfo()); |
| if (session == null) { |
| log.debug("Failed to SSH to {}", node.hostname()); |
| return false; |
| } |
| |
| Set<IpAddress> intBrIps = getCurrentIps(session, INTEGRATION_BRIDGE); |
| boolean result = getCurrentIps(session, node.dataIface()).isEmpty() && |
| isInterfaceUp(session, node.dataIface()) && |
| intBrIps.contains(node.dataIp().ip()) && |
| intBrIps.contains(node.localMgmtIp().ip()) && |
| isInterfaceUp(session, INTEGRATION_BRIDGE); |
| |
| disconnect(session); |
| return result; |
| } |
| |
| /** |
| * Returns connect point of a given port. |
| * |
| * @param port port |
| * @return connect point |
| */ |
| private ConnectPoint connectPoint(Port port) { |
| return new ConnectPoint(port.element().id(), port.number()); |
| } |
| |
| /** |
| * Returns cordvtn node associated with a given OVSDB device. |
| * |
| * @param ovsdbId OVSDB device id |
| * @return cordvtn node, null if it fails to find the node |
| */ |
| private CordVtnNode nodeByOvsdbId(DeviceId ovsdbId) { |
| return getNodes().stream() |
| .filter(node -> node.ovsdbId().equals(ovsdbId)) |
| .findFirst().orElse(null); |
| } |
| |
| /** |
| * Returns cordvtn node associated with a given integration bridge. |
| * |
| * @param bridgeId device id of integration bridge |
| * @return cordvtn node, null if it fails to find the node |
| */ |
| private CordVtnNode nodeByBridgeId(DeviceId bridgeId) { |
| return getNodes().stream() |
| .filter(node -> node.integrationBridgeId().equals(bridgeId)) |
| .findFirst().orElse(null); |
| } |
| |
| /** |
| * Returns port name. |
| * |
| * @param port port |
| * @return port name |
| */ |
| private String portName(Port port) { |
| return port.annotations().value(PORT_NAME); |
| } |
| |
| private class OvsdbHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| CordVtnNode node = nodeByOvsdbId(device.id()); |
| if (node != null) { |
| setNodeState(node, getNodeState(node)); |
| } else { |
| log.debug("{} is detected on unregistered node, ignore it.", device.id()); |
| } |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| log.debug("Device {} is disconnected", device.id()); |
| adminService.removeDevice(device.id()); |
| } |
| } |
| |
| private class BridgeHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| CordVtnNode node = nodeByBridgeId(device.id()); |
| if (node != null) { |
| setNodeState(node, getNodeState(node)); |
| } else { |
| log.debug("{} is detected on unregistered node, ignore it.", device.id()); |
| } |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| CordVtnNode node = nodeByBridgeId(device.id()); |
| if (node != null) { |
| log.warn("Integration Bridge is disconnected from {}", node.hostname()); |
| setNodeState(node, NodeState.INCOMPLETE); |
| } |
| } |
| |
| /** |
| * Handles port added situation. |
| * If the added port is tunnel or data plane interface, proceed to the remaining |
| * node initialization. Otherwise, do nothing. |
| * |
| * @param port port |
| */ |
| public void portAdded(Port port) { |
| CordVtnNode node = nodeByBridgeId((DeviceId) port.element().id()); |
| String portName = portName(port); |
| |
| if (node == null) { |
| log.debug("{} is added to unregistered node, ignore it.", portName); |
| return; |
| } |
| |
| log.info("Port {} is added to {}", portName, node.hostname()); |
| |
| if (node.systemIfaces().contains(portName)) { |
| setNodeState(node, getNodeState(node)); |
| } else if (isNodeStateComplete(node)) { |
| instanceService.addInstance(connectPoint(port)); |
| } else { |
| log.warn("Instance is detected on incomplete node, ignore it.", portName); |
| } |
| } |
| |
| /** |
| * Handles port removed situation. |
| * If the removed port is tunnel or data plane interface, proceed to the remaining |
| * node initialization.Others, do nothing. |
| * |
| * @param port port |
| */ |
| public void portRemoved(Port port) { |
| CordVtnNode node = nodeByBridgeId((DeviceId) port.element().id()); |
| String portName = portName(port); |
| |
| if (node == null) { |
| return; |
| } |
| |
| log.info("Port {} is removed from {}", portName, node.hostname()); |
| |
| if (node.systemIfaces().contains(portName)) { |
| setNodeState(node, NodeState.INCOMPLETE); |
| } else if (isNodeStateComplete(node)) { |
| instanceService.removeInstance(connectPoint(port)); |
| } else { |
| log.warn("VM is vanished from incomplete node, ignore it.", portName); |
| } |
| } |
| } |
| |
| private class InternalDeviceListener implements DeviceListener { |
| |
| @Override |
| public void event(DeviceEvent event) { |
| |
| NodeId leaderNodeId = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leaderNodeId)) { |
| // do not allow to proceed without leadership |
| return; |
| } |
| |
| Device device = event.subject(); |
| ConnectionHandler<Device> handler = |
| (device.type().equals(SWITCH) ? bridgeHandler : ovsdbHandler); |
| |
| switch (event.type()) { |
| case PORT_ADDED: |
| eventExecutor.execute(() -> bridgeHandler.portAdded(event.port())); |
| break; |
| case PORT_UPDATED: |
| if (!event.port().isEnabled()) { |
| eventExecutor.execute(() -> bridgeHandler.portRemoved(event.port())); |
| } |
| break; |
| case DEVICE_ADDED: |
| case DEVICE_AVAILABILITY_CHANGED: |
| if (deviceService.isAvailable(device.id())) { |
| eventExecutor.execute(() -> handler.connected(device)); |
| } else { |
| eventExecutor.execute(() -> handler.disconnected(device)); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Reads cordvtn nodes from config file. |
| */ |
| private void readConfiguration() { |
| CordVtnConfig config = configRegistry.getConfig(appId, CordVtnConfig.class); |
| if (config == null) { |
| log.debug("No configuration found"); |
| return; |
| } |
| config.cordVtnNodes().forEach(this::addOrUpdateNode); |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| NodeId leaderNodeId = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leaderNodeId)) { |
| // do not allow to proceed without leadership |
| return; |
| } |
| |
| if (!event.configClass().equals(CordVtnConfig.class)) { |
| return; |
| } |
| |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| case CONFIG_UPDATED: |
| eventExecutor.execute(CordVtnNodeManager.this::readConfiguration); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class InternalMapListener implements MapEventListener<String, CordVtnNode> { |
| |
| @Override |
| public void event(MapEvent<String, CordVtnNode> event) { |
| NodeId leaderNodeId = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leaderNodeId)) { |
| // do not allow to proceed without leadership |
| return; |
| } |
| |
| CordVtnNode oldNode; |
| CordVtnNode newNode; |
| |
| switch (event.type()) { |
| case UPDATE: |
| oldNode = event.oldValue().value(); |
| newNode = event.newValue().value(); |
| |
| log.info("Reloaded {}", newNode.hostname()); |
| if (!newNode.equals(oldNode)) { |
| log.debug("New node: {}", newNode); |
| } |
| // performs init procedure even if the node is not changed |
| // for robustness since it's no harm to run init procedure |
| // multiple times |
| eventExecutor.execute(() -> initNode(newNode)); |
| break; |
| case INSERT: |
| newNode = event.newValue().value(); |
| log.info("Added {}", newNode.hostname()); |
| eventExecutor.execute(() -> initNode(newNode)); |
| break; |
| case REMOVE: |
| oldNode = event.oldValue().value(); |
| log.info("Removed {}", oldNode.hostname()); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |