| /* |
| * 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.util; |
| |
| import com.eclipsesource.json.JsonArray; |
| import com.eclipsesource.json.JsonObject; |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.google.common.base.Strings; |
| import com.google.common.collect.ImmutableSet; |
| import io.fabric8.kubernetes.api.model.Node; |
| import io.fabric8.kubernetes.api.model.NodeAddress; |
| import io.fabric8.kubernetes.api.model.NodeSpec; |
| import io.fabric8.kubernetes.api.model.Taint; |
| import io.fabric8.kubernetes.client.ConfigBuilder; |
| import io.fabric8.kubernetes.client.DefaultKubernetesClient; |
| import io.fabric8.kubernetes.client.KubernetesClient; |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.commons.net.util.SubnetUtils; |
| import org.onlab.packet.ARP; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.cfg.ConfigProperty; |
| import org.onosproject.kubevirtnetworking.api.DefaultKubevirtNetwork; |
| import org.onosproject.kubevirtnetworking.api.DefaultKubevirtPort; |
| import org.onosproject.kubevirtnetworking.api.KubernetesExternalLb; |
| import org.onosproject.kubevirtnetworking.api.KubevirtHostRoute; |
| import org.onosproject.kubevirtnetworking.api.KubevirtIpPool; |
| import org.onosproject.kubevirtnetworking.api.KubevirtLoadBalancer; |
| import org.onosproject.kubevirtnetworking.api.KubevirtLoadBalancerService; |
| import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
| import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouter; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouterService; |
| import org.onosproject.kubevirtnode.api.DefaultKubevirtNode; |
| import org.onosproject.kubevirtnode.api.DefaultKubevirtPhyInterface; |
| import org.onosproject.kubevirtnode.api.KubernetesExternalLbConfig; |
| import org.onosproject.kubevirtnode.api.KubernetesExternalLbInterface; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfig; |
| import org.onosproject.kubevirtnode.api.KubevirtApiConfigService; |
| import org.onosproject.kubevirtnode.api.KubevirtNode; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeState; |
| import org.onosproject.kubevirtnode.api.KubevirtPhyInterface; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.group.DefaultGroupKey; |
| import org.onosproject.net.group.GroupKey; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.xbill.DNS.Address; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static org.onosproject.kubevirtnetworking.api.Constants.TUNNEL_TO_TENANT_PREFIX; |
| import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.FLAT; |
| import static org.onosproject.kubevirtnode.api.Constants.SONA_PROJECT_DOMAIN; |
| import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.GATEWAY; |
| import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.MASTER; |
| import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.OTHER; |
| import static org.onosproject.kubevirtnode.api.KubevirtNode.Type.WORKER; |
| import static org.onosproject.net.AnnotationKeys.PORT_MAC; |
| import static org.onosproject.net.AnnotationKeys.PORT_NAME; |
| |
| /** |
| * An utility that used in KubeVirt networking app. |
| */ |
| public final class KubevirtNetworkingUtil { |
| |
| private static final Logger log = LoggerFactory.getLogger(KubevirtNetworkingUtil.class); |
| |
| private static final int PORT_NAME_MAX_LENGTH = 15; |
| private static final String COLON_SLASH = "://"; |
| private static final String COLON = ":"; |
| private static final String OF_PREFIX = "of:"; |
| |
| private static final String NETWORK_STATUS_KEY = "k8s.v1.cni.cncf.io/network-status"; |
| private static final String NAME = "name"; |
| private static final String NETWORK_PREFIX = "default/"; |
| private static final String MAC = "mac"; |
| private static final String IPS = "ips"; |
| private static final String BR_INT = "br-int"; |
| private static final String METADATA = "metadata"; |
| private static final String STATUS = "status"; |
| private static final String INTERFACES = "interfaces"; |
| private static final String NODE_NAME = "nodeName"; |
| |
| private static final String NETWORK_CONFIG = "network-config"; |
| private static final String TYPE = "type"; |
| private static final String MTU = "mtu"; |
| private static final String SEGMENT_ID = "segmentId"; |
| private static final String GATEWAY_IP = "gatewayIp"; |
| private static final String DEFAULT_ROUTE = "defaultRoute"; |
| private static final String CIDR = "cidr"; |
| private static final String HOST_ROUTES = "hostRoutes"; |
| private static final String DESTINATION = "destination"; |
| private static final String NEXTHOP = "nexthop"; |
| private static final String IP_POOL = "ipPool"; |
| private static final String START = "start"; |
| private static final String END = "end"; |
| private static final String DNSES = "dnses"; |
| |
| private static final String INTERNAL_IP = "InternalIP"; |
| private static final String K8S_ROLE = "node-role.kubernetes.io"; |
| private static final String PHYSNET_CONFIG_KEY = SONA_PROJECT_DOMAIN + "/physnet-config"; |
| private static final String DATA_IP_KEY = SONA_PROJECT_DOMAIN + "/data-ip"; |
| private static final String GATEWAY_CONFIG_KEY = SONA_PROJECT_DOMAIN + "/gateway-config"; |
| private static final String GATEWAY_BRIDGE_NAME = "gatewayBridgeName"; |
| private static final String NETWORK_KEY = "network"; |
| private static final String INTERFACE_KEY = "interface"; |
| private static final String PHYS_BRIDGE_ID = "physBridgeId"; |
| |
| private static final String NO_SCHEDULE_EFFECT = "NoSchedule"; |
| private static final String KUBEVIRT_IO_KEY = "kubevirt.io/drain"; |
| private static final String DRAINING_VALUE = "draining"; |
| |
| /** |
| * Prevents object installation from external. |
| */ |
| private KubevirtNetworkingUtil() { |
| } |
| |
| /** |
| * Obtains the boolean property value with specified property key name. |
| * |
| * @param properties a collection of properties |
| * @param name key name |
| * @return mapping value |
| */ |
| public static boolean getPropertyValueAsBoolean(Set<ConfigProperty> properties, |
| String name) { |
| Optional<ConfigProperty> property = |
| properties.stream().filter(p -> p.name().equals(name)).findFirst(); |
| |
| return property.map(ConfigProperty::asBoolean).orElse(false); |
| } |
| |
| /** |
| * Re-structures the OVS port name. |
| * The length of OVS port name should be not large than 15. |
| * |
| * @param portName original port name |
| * @return re-structured OVS port name |
| */ |
| public static String structurePortName(String portName) { |
| |
| // The size of OVS port name should not be larger than 15 |
| if (portName.length() > PORT_NAME_MAX_LENGTH) { |
| return StringUtils.substring(portName, 0, PORT_NAME_MAX_LENGTH); |
| } |
| |
| return portName; |
| } |
| |
| /** |
| * Generates string format based on the given string length list. |
| * |
| * @param stringLengths a list of string lengths |
| * @return string format (e.g., %-28s%-15s%-24s%-20s%-15s) |
| */ |
| public static String genFormatString(List<Integer> stringLengths) { |
| StringBuilder fsb = new StringBuilder(); |
| stringLengths.forEach(length -> { |
| fsb.append("%-"); |
| fsb.append(length); |
| fsb.append("s"); |
| }); |
| return fsb.toString(); |
| } |
| |
| /** |
| * Auto generates DPID from the given name. |
| * |
| * @param name name |
| * @return auto generated DPID |
| */ |
| public static String genDpidFromName(String name) { |
| if (name != null) { |
| String hexString = Integer.toHexString(name.hashCode()); |
| return OF_PREFIX + Strings.padStart(hexString, 16, '0'); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Prints out the JSON string in pretty format. |
| * |
| * @param mapper Object mapper |
| * @param jsonString JSON string |
| * @return pretty formatted JSON string |
| */ |
| public static String prettyJson(ObjectMapper mapper, String jsonString) { |
| try { |
| Object jsonObject = mapper.readValue(jsonString, Object.class); |
| return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(jsonObject); |
| } catch (IOException e) { |
| log.debug("Json string parsing exception caused by {}", e); |
| } |
| return null; |
| } |
| |
| /** |
| * Obtains valid IP addresses of the given subnet. |
| * |
| * @param cidr CIDR |
| * @return set of IP addresses |
| */ |
| public static Set<IpAddress> getSubnetIps(String cidr) { |
| SubnetUtils utils = new SubnetUtils(cidr); |
| utils.setInclusiveHostCount(false); |
| SubnetUtils.SubnetInfo info = utils.getInfo(); |
| Set<String> allAddresses = |
| new HashSet<>(Arrays.asList(info.getAllAddresses())); |
| |
| if (allAddresses.size() > 2) { |
| allAddresses.remove(info.getLowAddress()); |
| allAddresses.remove(info.getHighAddress()); |
| } |
| |
| return allAddresses.stream() |
| .map(IpAddress::valueOf).collect(Collectors.toSet()); |
| } |
| |
| /** |
| * Calculate the broadcast address from given IP address and subnet prefix length. |
| * |
| * @param ipAddr IP address |
| * @param prefixLength subnet prefix length |
| * @return broadcast address |
| */ |
| public static String getBroadcastAddr(String ipAddr, int prefixLength) { |
| String subnet = ipAddr + "/" + prefixLength; |
| SubnetUtils utils = new SubnetUtils(subnet); |
| return utils.getInfo().getBroadcastAddress(); |
| } |
| |
| /** |
| * Generates endpoint URL by referring to scheme, ipAddress and port. |
| * |
| * @param scheme scheme |
| * @param ipAddress IP address |
| * @param port port number |
| * @return generated endpoint URL |
| */ |
| public static String endpoint(KubevirtApiConfig.Scheme scheme, IpAddress ipAddress, int port) { |
| StringBuilder endpoint = new StringBuilder(); |
| String protocol = org.apache.commons.lang3.StringUtils.lowerCase(scheme.name()); |
| |
| endpoint.append(protocol); |
| endpoint.append(COLON_SLASH); |
| endpoint.append(ipAddress.toString()); |
| endpoint.append(COLON); |
| endpoint.append(port); |
| |
| return endpoint.toString(); |
| } |
| |
| /** |
| * Generates endpoint URL by referring to scheme, ipAddress and port. |
| * |
| * @param apiConfig kubernetes API config |
| * @return generated endpoint URL |
| */ |
| public static String endpoint(KubevirtApiConfig apiConfig) { |
| return endpoint(apiConfig.scheme(), apiConfig.ipAddress(), apiConfig.port()); |
| } |
| |
| /** |
| * Obtains workable kubernetes client. |
| * |
| * @param config kubernetes API config |
| * @return kubernetes client |
| */ |
| public static KubernetesClient k8sClient(KubevirtApiConfig config) { |
| if (config == null) { |
| log.warn("Kubernetes API server config is empty."); |
| return null; |
| } |
| |
| String endpoint = endpoint(config); |
| |
| ConfigBuilder configBuilder = new ConfigBuilder().withMasterUrl(endpoint); |
| |
| if (config.scheme() == KubevirtApiConfig.Scheme.HTTPS) { |
| configBuilder.withTrustCerts(true) |
| .withCaCertData(config.caCertData()) |
| .withClientCertData(config.clientCertData()) |
| .withClientKeyData(config.clientKeyData()); |
| } |
| |
| return new DefaultKubernetesClient(configBuilder.build()); |
| } |
| |
| /** |
| * Obtains workable kubernetes client. |
| * |
| * @param service kubernetes API service |
| * @return kubernetes client |
| */ |
| public static KubernetesClient k8sClient(KubevirtApiConfigService service) { |
| KubevirtApiConfig config = service.apiConfig(); |
| if (config == null) { |
| log.error("Failed to find valid kubernetes API configuration."); |
| return null; |
| } |
| |
| KubernetesClient client = k8sClient(config); |
| |
| if (client == null) { |
| log.error("Failed to connect to kubernetes API server."); |
| return null; |
| } |
| |
| return client; |
| } |
| |
| /** |
| * Obtains the hex string of the given segment ID with fixed padding. |
| * |
| * @param segIdStr segment identifier string |
| * @return hex string with padding |
| */ |
| public static String segmentIdHex(String segIdStr) { |
| int segId = Integer.parseInt(segIdStr); |
| return String.format("%06x", segId).toLowerCase(); |
| } |
| |
| /** |
| * Obtains the tunnel port number with the given network and node. |
| * |
| * @param network kubevirt network |
| * @param node kubevirt node |
| * @return tunnel port number |
| */ |
| public static PortNumber tunnelPort(KubevirtNetwork network, KubevirtNode node) { |
| switch (network.type()) { |
| case VXLAN: |
| return node.vxlanPort(); |
| case GRE: |
| return node.grePort(); |
| case GENEVE: |
| return node.genevePort(); |
| case STT: |
| return node.sttPort(); |
| default: |
| break; |
| } |
| return null; |
| } |
| |
| /** |
| * Obtains the kubevirt port from kubevirt VMI. |
| * |
| * @param nodeService kubevirt node service |
| * @param networks set of existing kubevirt networks |
| * @param resource VMI definition |
| * @return kubevirt ports attached to the VMI |
| */ |
| public static Set<KubevirtPort> getPorts(KubevirtNodeService nodeService, |
| Set<KubevirtNetwork> networks, |
| String resource) { |
| try { |
| ObjectMapper mapper = new ObjectMapper(); |
| JsonNode json = mapper.readTree(resource); |
| JsonNode statusJson = json.get(STATUS); |
| ArrayNode interfacesJson = (ArrayNode) statusJson.get(INTERFACES); |
| String vmName = parseResourceName(resource); |
| |
| KubevirtPort.Builder builder = DefaultKubevirtPort.builder(); |
| String nodeName = parseVmiNodeName(resource); |
| if (nodeName != null && nodeService.node(nodeName) != null) { |
| builder.deviceId(nodeService.node(nodeName).intgBridge()); |
| } |
| |
| if (interfacesJson == null) { |
| return ImmutableSet.of(); |
| } |
| |
| Set<KubevirtPort> ports = new HashSet<>(); |
| for (JsonNode interfaceJson : interfacesJson) { |
| JsonNode jsonName = interfaceJson.get(NAME); |
| |
| // in some cases, name attribute may not be available from the |
| // interface, we skip inspect this interface |
| if (jsonName == null) { |
| continue; |
| } |
| |
| String name = jsonName.asText(); |
| KubevirtNetwork network = networks.stream() |
| .filter(n -> (NETWORK_PREFIX + n.name()).equals(name) || |
| (n.name() + "-net").equals(name)) |
| .findAny().orElse(null); |
| if (network != null && interfaceJson.get(MAC) != null) { |
| // FIXME: we do not update IP address, as learning IP address |
| // requires much more time due to the lag from VM agent |
| String mac = interfaceJson.get(MAC).asText(); |
| builder.vmName(vmName) |
| .macAddress(MacAddress.valueOf(mac)) |
| .networkId(network.networkId()); |
| ports.add(builder.build()); |
| } |
| } |
| return ports; |
| } catch (IOException e) { |
| log.error("Failed to parse port info from VMI object", e); |
| } |
| return ImmutableSet.of(); |
| } |
| |
| public static String parseVmiNodeName(String resource) { |
| String nodeName = null; |
| try { |
| ObjectMapper mapper = new ObjectMapper(); |
| JsonNode json = mapper.readTree(resource); |
| JsonNode statusJson = json.get(STATUS); |
| JsonNode nodeNameJson = statusJson.get(NODE_NAME); |
| nodeName = nodeNameJson != null ? nodeNameJson.asText() : null; |
| } catch (IOException e) { |
| log.error("Failed to parse kubevirt VMI nodename"); |
| } |
| |
| return nodeName; |
| } |
| |
| /** |
| * Obtains the tunnel bridge to tenant bridge patch port number. |
| * |
| * @param deviceService device service |
| * @param node kubevirt node |
| * @param network kubevirt network |
| * @return patch port number |
| */ |
| public static PortNumber tunnelToTenantPort(DeviceService deviceService, |
| KubevirtNode node, KubevirtNetwork network) { |
| if (network.segmentId() == null) { |
| return null; |
| } |
| |
| if (node.tunBridge() == null) { |
| return null; |
| } |
| |
| String tunToTenantPortName = TUNNEL_TO_TENANT_PREFIX + segmentIdHex(network.segmentId()); |
| return portNumber(deviceService, node.tunBridge(), tunToTenantPortName); |
| } |
| |
| /** |
| * Obtains the tunnel port number of the given node. |
| * |
| * @param node kubevirt node |
| * @param network kubevirt network |
| * @return tunnel port number |
| */ |
| public static PortNumber tunnelPort(KubevirtNode node, KubevirtNetwork network) { |
| if (network.segmentId() == null) { |
| return null; |
| } |
| |
| if (node.tunBridge() == null) { |
| return null; |
| } |
| |
| switch (network.type()) { |
| case VXLAN: |
| return node.vxlanPort(); |
| case GRE: |
| return node.grePort(); |
| case GENEVE: |
| return node.genevePort(); |
| case STT: |
| return node.sttPort(); |
| case FLAT: |
| case VLAN: |
| default: |
| // do nothing |
| return null; |
| } |
| } |
| |
| public static String parseResourceName(String resource) { |
| JsonObject json = JsonObject.readFrom(resource); |
| JsonObject metadata = json.get("metadata").asObject(); |
| return metadata != null ? metadata.get("name").asString() : ""; |
| } |
| |
| public static PortNumber portNumber(DeviceService deviceService, DeviceId deviceId, String portName) { |
| Port port = deviceService.getPorts(deviceId).stream() |
| .filter(p -> p.isEnabled() && |
| Objects.equals(p.annotations().value(PORT_NAME), portName)) |
| .findAny().orElse(null); |
| return port != null ? port.number() : null; |
| } |
| |
| /** |
| * Returns the gateway node for the specified kubevirt router. |
| * Among gateways, only one gateway would act as a gateway per perter. |
| * Currently gateway node is selected based on modulo operation with router hashcode. |
| * |
| * @param nodeService kubevirt node service |
| * @param router kubevirt router |
| * @return elected gateway node |
| */ |
| public static KubevirtNode gatewayNodeForSpecifiedRouter(KubevirtNodeService nodeService, |
| KubevirtRouter router) { |
| //TODO: enhance election logic for a better load balancing |
| |
| int numOfGateways = nodeService.completeNodes(GATEWAY).size(); |
| if (numOfGateways == 0) { |
| return null; |
| } |
| return (KubevirtNode) nodeService.completeNodes(GATEWAY) |
| .toArray()[Math.floorMod(router.hashCode(), numOfGateways)]; |
| } |
| |
| /** |
| * Returns the gateway node for the specified kubernetes external lb. |
| * Among gateways, only one gateway would act as a gateway per external lb. |
| * Currently gateway node is selected based on modulo operation with external lb hashcode. |
| * |
| * @param nodeService kubevirt node service |
| * @param externalLb kubernetes external lb |
| * @return elected gateway node |
| */ |
| public static KubevirtNode gatewayNodeForSpecifiedService(KubevirtNodeService nodeService, |
| KubernetesExternalLb externalLb) { |
| //TODO: enhance election logic for a better load balancing |
| try { |
| int numOfGateways = nodeService.completeExternalLbGatewayNodes().size(); |
| if (numOfGateways == 0) { |
| return null; |
| } |
| |
| return (KubevirtNode) nodeService.completeExternalLbGatewayNodes() |
| .toArray()[Math.floorMod(externalLb.hashCode(), numOfGateways)]; |
| } catch (IndexOutOfBoundsException e) { |
| log.error("IndexOutOfBoundsException occurred {}", e.toString()); |
| return null; |
| } |
| } |
| |
| /** |
| * Returns whether a mac address in kubernetes external lb config is updated. |
| * |
| * @param externalLbConfig kubernetes external lb config |
| * @return true if a mac address is added |
| */ |
| public static boolean configMapUpdated(KubernetesExternalLbConfig externalLbConfig) { |
| if (externalLbConfig == null) { |
| return false; |
| } |
| |
| return externalLbConfig.configName() != null && externalLbConfig.globalIpRange() != null && |
| externalLbConfig.loadBalancerGwIp() != null && externalLbConfig.loadBalancerGwMac() != null; |
| } |
| |
| |
| /** |
| * Returns the worker node for the specified kubernetes external lb. |
| * Among worker nodes, only one worker would serve the traffic from and to the gateway. |
| * Currently worker node is selected based on modulo operation with external lb hashcode. |
| * |
| * @param nodeService kubevirt node service |
| * @param externalLb kubernetes external lb |
| * @return elected worker node |
| */ |
| public static KubevirtNode workerNodeForSpecifiedService(KubevirtNodeService nodeService, |
| KubernetesExternalLb externalLb) { |
| //TODO: enhance election logic for a better load balancing |
| |
| int numOfWorkers = nodeService.completeNodes(WORKER).size(); |
| if (numOfWorkers == 0) { |
| return null; |
| } |
| |
| return (KubevirtNode) nodeService.completeNodes(WORKER) |
| .toArray()[externalLb.hashCode() % numOfWorkers]; |
| } |
| |
| /** |
| * Returns the mac address of the router. |
| * |
| * @param router kubevirt router |
| * @return macc address of the router |
| */ |
| public static MacAddress getRouterMacAddress(KubevirtRouter router) { |
| if (router.mac() == null) { |
| log.warn("Failed to get mac address of router {}", router.name()); |
| } |
| |
| return router.mac(); |
| } |
| |
| /** |
| * Returns the snat ip address with specified router. |
| * |
| * @param routerService router service |
| * @param internalNetworkId internal network id which is associated with the router |
| * @return snat ip address if exist, null otherwise |
| */ |
| public static IpAddress getRouterSnatIpAddress(KubevirtRouterService routerService, |
| String internalNetworkId) { |
| KubevirtRouter router = routerService.routers().stream() |
| .filter(r -> r.internal().contains(internalNetworkId)) |
| .findAny().orElse(null); |
| |
| if (router == null) { |
| return null; |
| } |
| |
| String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| |
| if (routerSnatIp == null) { |
| return null; |
| } |
| |
| return Ip4Address.valueOf(routerSnatIp); |
| } |
| |
| /** |
| * Returns the kubevirt router with specified kubevirt port. |
| * |
| * @param routerService kubevirt router service |
| * @param kubevirtPort kubevirt port |
| * @return kubevirt router |
| */ |
| public static KubevirtRouter getRouterForKubevirtPort(KubevirtRouterService routerService, |
| KubevirtPort kubevirtPort) { |
| if (kubevirtPort.ipAddress() != null) { |
| return routerService.routers().stream() |
| .filter(r -> r.internal().contains(kubevirtPort.networkId())) |
| .findAny().orElse(null); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the kubevirt router with specified kubevirt network. |
| * |
| * @param routerService kubevirt router service |
| * @param kubevirtNetwork kubevirt network |
| * @return kubevirt router |
| */ |
| public static KubevirtRouter getRouterForKubevirtNetwork(KubevirtRouterService routerService, |
| KubevirtNetwork kubevirtNetwork) { |
| return routerService.routers().stream() |
| .filter(router -> router.internal().contains(kubevirtNetwork.networkId())) |
| .findAny().orElse(null); |
| } |
| |
| /** |
| * Returns the external patch port number with specified gateway. |
| * |
| * @param deviceService device service |
| * @param gatewayNode gateway node |
| * @return external patch port number |
| */ |
| public static PortNumber externalPatchPortNum(DeviceService deviceService, KubevirtNode gatewayNode) { |
| String gatewayBridgeName = gatewayNode.gatewayBridgeName(); |
| if (gatewayBridgeName == null) { |
| log.warn("No external interface is attached to gateway {}", gatewayNode.hostname()); |
| return null; |
| } |
| |
| String patchPortName = "int-to-" + gatewayBridgeName; |
| Port port = deviceService.getPorts(gatewayNode.intgBridge()).stream() |
| .filter(p -> p.isEnabled() && |
| Objects.equals(p.annotations().value(PORT_NAME), patchPortName)) |
| .findAny().orElse(null); |
| |
| return port != null ? port.number() : null; |
| } |
| |
| /** |
| * Returns the external lb patch port number with specified gateway. |
| * |
| * @param deviceService device service |
| * @param gateway gateway node |
| * @return external lb bridge patch port number |
| */ |
| public static PortNumber elbPatchPortNum(DeviceService deviceService, KubevirtNode gateway) { |
| KubernetesExternalLbInterface kubernetesExternalLbInterface = |
| gateway.kubernetesExternalLbInterface(); |
| |
| if (kubernetesExternalLbInterface == null) { |
| log.warn("No elb interface is attached to gateway {}", gateway.hostname()); |
| return null; |
| } |
| |
| String elbBridgeName = kubernetesExternalLbInterface.externalLbBridgeName(); |
| |
| String patchPortName = "int-to-" + elbBridgeName; |
| |
| Port port = deviceService.getPorts(gateway.intgBridge()).stream() |
| .filter(p -> p.isEnabled() && |
| Objects.equals(p.annotations().value(PORT_NAME), patchPortName)) |
| .findAny().orElse(null); |
| |
| return port != null ? port.number() : null; |
| } |
| |
| /** |
| * Returns the external lb patch port Mac with specified gateway. |
| * |
| * @param deviceService device service |
| * @param gateway gateway node |
| * @return external lb bridge patch Mac Address |
| */ |
| public static MacAddress kubernetesElbMac(DeviceService deviceService, KubevirtNode gateway) { |
| |
| KubernetesExternalLbInterface kubernetesExternalLbInterface = |
| gateway.kubernetesExternalLbInterface(); |
| |
| if (kubernetesExternalLbInterface == null) { |
| log.warn("No elb interface is attached to gateway {}", gateway.hostname()); |
| return null; |
| } |
| |
| String elbBridgeName = kubernetesExternalLbInterface.externalLbBridgeName(); |
| |
| String patchPortName = "int-to-" + elbBridgeName; |
| |
| Port port = deviceService.getPorts(gateway.intgBridge()).stream() |
| .filter(p -> p.isEnabled() && |
| Objects.equals(p.annotations().value(PORT_NAME), patchPortName)) |
| .findAny().orElse(null); |
| |
| if (port == null) { |
| return null; |
| } |
| |
| String portMacStr = port.annotations().value(PORT_MAC); |
| |
| if (portMacStr == null) { |
| return null; |
| } |
| |
| return MacAddress.valueOf(portMacStr); |
| } |
| |
| /** |
| * Returns the kubevirt external network with specified router. |
| * |
| * @param networkService kubevirt network service |
| * @param router kubevirt router |
| * @return external network |
| */ |
| public static KubevirtNetwork getExternalNetworkByRouter(KubevirtNetworkService networkService, |
| KubevirtRouter router) { |
| String networkId = router.external().values().stream().findAny().orElse(null); |
| if (networkId == null) { |
| return null; |
| } |
| |
| return networkService.network(networkId); |
| } |
| |
| /** |
| * Resolve a DNS with the given DNS server and hostname. |
| * |
| * @param hostname hostname to be resolved |
| * @return resolved IP address |
| */ |
| public static IpAddress resolveHostname(String hostname) { |
| try { |
| InetAddress addr = Address.getByName(hostname); |
| return IpAddress.valueOf(IpAddress.Version.INET, addr.getAddress()); |
| } catch (UnknownHostException e) { |
| log.warn("Failed to resolve IP address of host {}", hostname); |
| } |
| return null; |
| } |
| |
| /** |
| * Builds a GARP packet using the given source MAC and source IP address. |
| * |
| * @param srcMac source MAC address |
| * @param srcIp source IP address |
| * @return GARP packet |
| */ |
| public static Ethernet buildGarpPacket(MacAddress srcMac, IpAddress srcIp) { |
| if (srcMac == null || srcIp == null) { |
| return null; |
| } |
| |
| Ethernet ethernet = new Ethernet(); |
| ethernet.setDestinationMACAddress(MacAddress.BROADCAST); |
| ethernet.setSourceMACAddress(srcMac); |
| ethernet.setEtherType(Ethernet.TYPE_ARP); |
| |
| ARP arp = new ARP(); |
| arp.setOpCode(ARP.OP_REPLY); |
| arp.setProtocolType(ARP.PROTO_TYPE_IP); |
| arp.setHardwareType(ARP.HW_TYPE_ETHERNET); |
| |
| arp.setProtocolAddressLength((byte) Ip4Address.BYTE_LENGTH); |
| arp.setHardwareAddressLength((byte) Ethernet.DATALAYER_ADDRESS_LENGTH); |
| |
| arp.setSenderHardwareAddress(srcMac.toBytes()); |
| arp.setTargetHardwareAddress(MacAddress.BROADCAST.toBytes()); |
| |
| arp.setSenderProtocolAddress(srcIp.toOctets()); |
| arp.setTargetProtocolAddress(srcIp.toOctets()); |
| |
| ethernet.setPayload(arp); |
| |
| return ethernet; |
| } |
| |
| /** |
| * Obtains flow group key from the given id. |
| * |
| * @param groupId flow group identifier |
| * @return flow group key |
| */ |
| public static GroupKey getGroupKey(int groupId) { |
| return new DefaultGroupKey((Integer.toString(groupId)).getBytes()); |
| } |
| |
| /** |
| * Obtains load balancer set from the given router. |
| * |
| * @param router kubevirt router |
| * @param lbService kubevirt loadbalancer service |
| * @return loadbalancer set |
| */ |
| public static Set<KubevirtLoadBalancer> getLoadBalancerSetForRouter(KubevirtRouter router, |
| KubevirtLoadBalancerService lbService) { |
| |
| return lbService.loadBalancers().stream() |
| .filter(lb -> router.internal().contains(lb.networkId())) |
| .collect(Collectors.toSet()); |
| } |
| |
| /** |
| * Waits for the given length of time. |
| * |
| * @param timeSecond the amount of time for wait in second unit |
| */ |
| public static void waitFor(int timeSecond) { |
| try { |
| Thread.sleep(timeSecond * 1000L); |
| } catch (Exception e) { |
| log.error(e.toString()); |
| } |
| } |
| |
| /** |
| * Returns the kubevirt node from the node. |
| * |
| * @param node a raw node object returned from a k8s client |
| * @return kubevirt node |
| */ |
| public static KubevirtNode buildKubevirtNode(Node node) { |
| String hostname = node.getMetadata().getName(); |
| IpAddress managementIp = null; |
| IpAddress dataIp = null; |
| |
| for (NodeAddress nodeAddress:node.getStatus().getAddresses()) { |
| if (nodeAddress.getType().equals(INTERNAL_IP)) { |
| managementIp = IpAddress.valueOf(nodeAddress.getAddress()); |
| dataIp = IpAddress.valueOf(nodeAddress.getAddress()); |
| } |
| } |
| |
| Set<String> rolesFull = node.getMetadata().getLabels().keySet().stream() |
| .filter(l -> l.contains(K8S_ROLE)) |
| .collect(Collectors.toSet()); |
| |
| KubevirtNode.Type nodeType = WORKER; |
| |
| for (String roleStr : rolesFull) { |
| String role = roleStr.split("/")[1]; |
| if (MASTER.name().equalsIgnoreCase(role)) { |
| nodeType = MASTER; |
| break; |
| } |
| } |
| |
| // start to parse kubernetes annotation |
| Map<String, String> annots = node.getMetadata().getAnnotations(); |
| String physnetConfig = annots.get(PHYSNET_CONFIG_KEY); |
| String gatewayConfig = annots.get(GATEWAY_CONFIG_KEY); |
| String dataIpStr = annots.get(DATA_IP_KEY); |
| Set<KubevirtPhyInterface> phys = new HashSet<>(); |
| String gatewayBridgeName = null; |
| try { |
| if (physnetConfig != null) { |
| JsonArray configJson = JsonArray.readFrom(physnetConfig); |
| |
| for (int i = 0; i < configJson.size(); i++) { |
| JsonObject object = configJson.get(i).asObject(); |
| String network = object.get(NETWORK_KEY).asString(); |
| String intf = object.get(INTERFACE_KEY).asString(); |
| |
| if (network != null && intf != null) { |
| String physBridgeId; |
| if (object.get(PHYS_BRIDGE_ID) != null) { |
| physBridgeId = object.get(PHYS_BRIDGE_ID).asString(); |
| } else { |
| physBridgeId = genDpidFromName(network + intf + hostname); |
| log.trace("host {} physnet dpid for network {} intf {} is null so generate dpid {}", |
| hostname, network, intf, physBridgeId); |
| } |
| |
| phys.add(DefaultKubevirtPhyInterface.builder() |
| .network(network) |
| .intf(intf) |
| .physBridge(DeviceId.deviceId(physBridgeId)) |
| .build()); |
| } |
| } |
| } |
| |
| if (dataIpStr != null) { |
| dataIp = IpAddress.valueOf(dataIpStr); |
| } |
| |
| if (gatewayConfig != null) { |
| JsonNode jsonNode = new ObjectMapper().readTree(gatewayConfig); |
| |
| nodeType = GATEWAY; |
| gatewayBridgeName = jsonNode.get(GATEWAY_BRIDGE_NAME).asText(); |
| } |
| } catch (JsonProcessingException e) { |
| log.error("Failed to parse physnet config or gateway config object", e); |
| } |
| |
| // if the node is taint with kubevirt.io key configured, |
| // we mark this node as OTHER type, and do not add it into the cluster |
| NodeSpec spec = node.getSpec(); |
| if (spec.getTaints() != null) { |
| for (Taint taint : spec.getTaints()) { |
| String effect = taint.getEffect(); |
| String key = taint.getKey(); |
| String value = taint.getValue(); |
| |
| if (StringUtils.equals(effect, NO_SCHEDULE_EFFECT) && |
| StringUtils.equals(key, KUBEVIRT_IO_KEY) && |
| StringUtils.equals(value, DRAINING_VALUE)) { |
| nodeType = OTHER; |
| } |
| } |
| } |
| |
| return DefaultKubevirtNode.builder() |
| .hostname(hostname) |
| .managementIp(managementIp) |
| .dataIp(dataIp) |
| .type(nodeType) |
| .state(KubevirtNodeState.ON_BOARDED) |
| .phyIntfs(phys) |
| .gatewayBridgeName(gatewayBridgeName) |
| .build(); |
| } |
| |
| /** |
| * Parses kubevirt network resource. |
| * |
| * @param resource kubevirt network resource string |
| * @return kubevirt network object |
| */ |
| public static KubevirtNetwork parseKubevirtNetwork(String resource) { |
| JsonObject json = JsonObject.readFrom(resource); |
| String name = parseResourceName(resource); |
| JsonObject annots = json.get("metadata").asObject().get("annotations").asObject(); |
| if (annots.get(NETWORK_CONFIG) == null) { |
| // SR-IOV network does not contain network-config field |
| return null; |
| } |
| String networkConfig = annots.get(NETWORK_CONFIG).asString(); |
| if (networkConfig != null) { |
| KubevirtNetwork.Builder builder = DefaultKubevirtNetwork.builder(); |
| |
| JsonObject configJson = JsonObject.readFrom(networkConfig); |
| String type = configJson.get(TYPE).asString().toUpperCase(Locale.ROOT); |
| Integer mtu = configJson.get(MTU).asInt(); |
| String gatewayIp = configJson.getString(GATEWAY_IP, ""); |
| boolean defaultRoute = configJson.getBoolean(DEFAULT_ROUTE, false); |
| |
| if (!type.equalsIgnoreCase(FLAT.name())) { |
| builder.segmentId(configJson.getString(SEGMENT_ID, "")); |
| } |
| |
| String cidr = configJson.getString(CIDR, ""); |
| |
| JsonObject poolJson = configJson.get(IP_POOL).asObject(); |
| if (poolJson != null) { |
| String start = poolJson.getString(START, ""); |
| String end = poolJson.getString(END, ""); |
| builder.ipPool(new KubevirtIpPool( |
| IpAddress.valueOf(start), IpAddress.valueOf(end))); |
| } |
| |
| if (configJson.get(HOST_ROUTES) != null) { |
| JsonArray routesJson = configJson.get(HOST_ROUTES).asArray(); |
| Set<KubevirtHostRoute> hostRoutes = new HashSet<>(); |
| if (routesJson != null) { |
| for (int i = 0; i < routesJson.size(); i++) { |
| JsonObject route = routesJson.get(i).asObject(); |
| String destinationStr = route.getString(DESTINATION, ""); |
| String nexthopStr = route.getString(NEXTHOP, ""); |
| |
| if (StringUtils.isNotEmpty(destinationStr) && |
| StringUtils.isNotEmpty(nexthopStr)) { |
| hostRoutes.add(new KubevirtHostRoute( |
| IpPrefix.valueOf(destinationStr), |
| IpAddress.valueOf(nexthopStr))); |
| } |
| } |
| } |
| builder.hostRoutes(hostRoutes); |
| } |
| |
| if (configJson.get(DNSES) != null) { |
| JsonArray dnsesJson = configJson.get(DNSES).asArray(); |
| Set<IpAddress> dnses = new HashSet<>(); |
| if (dnsesJson != null) { |
| for (int i = 0; i < dnsesJson.size(); i++) { |
| String dns = dnsesJson.get(i).asString(); |
| if (StringUtils.isNotEmpty(dns)) { |
| dnses.add(IpAddress.valueOf(dns)); |
| } |
| } |
| } |
| builder.dnses(dnses); |
| } |
| |
| builder.networkId(name).name(name).type(KubevirtNetwork.Type.valueOf(type)) |
| .mtu(mtu).gatewayIp(IpAddress.valueOf(gatewayIp)) |
| .defaultRoute(defaultRoute).cidr(cidr); |
| |
| return builder.build(); |
| } |
| return null; |
| } |
| } |