| /* |
| * 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 io.fabric8.kubernetes.api.model.Service; |
| import io.fabric8.kubernetes.api.model.ServicePort; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.TpPort; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.cfg.ConfigProperty; |
| 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.k8snetworking.api.K8sFlowRuleService; |
| import org.onosproject.k8snetworking.api.K8sNetworkService; |
| import org.onosproject.k8snetworking.api.K8sServiceEvent; |
| import org.onosproject.k8snetworking.api.K8sServiceListener; |
| import org.onosproject.k8snetworking.api.K8sServiceService; |
| import org.onosproject.k8snode.api.K8sNode; |
| import org.onosproject.k8snode.api.K8sNodeEvent; |
| import org.onosproject.k8snode.api.K8sNodeListener; |
| import org.onosproject.k8snode.api.K8sNodeService; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.driver.DriverService; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| 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.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.k8snetworking.api.Constants.B_CLASS; |
| import static org.onosproject.k8snetworking.api.Constants.DST; |
| import static org.onosproject.k8snetworking.api.Constants.EXT_ENTRY_TABLE; |
| import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
| import static org.onosproject.k8snetworking.api.Constants.NODE_IP_PREFIX; |
| import static org.onosproject.k8snetworking.api.Constants.PRIORITY_CIDR_RULE; |
| import static org.onosproject.k8snetworking.api.Constants.PRIORITY_NODE_PORT_INTER_RULE; |
| import static org.onosproject.k8snetworking.api.Constants.PRIORITY_NODE_PORT_REMOTE_RULE; |
| import static org.onosproject.k8snetworking.api.Constants.PRIORITY_NODE_PORT_RULE; |
| import static org.onosproject.k8snetworking.api.Constants.ROUTING_TABLE; |
| import static org.onosproject.k8snetworking.api.Constants.SRC; |
| import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.getBclassIpPrefixFromCidr; |
| import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.getPropertyValue; |
| import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.tunnelPortNumByNetId; |
| import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.unshiftIpDomain; |
| import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildExtension; |
| import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildLoadExtension; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides service port exposure using node port. |
| */ |
| @Component(immediate = true) |
| public class K8sNodePortHandler { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String NODE_PORT_TYPE = "NodePort"; |
| private static final String TCP = "TCP"; |
| private static final String UDP = "UDP"; |
| private static final int HOST_CIDR = 32; |
| private static final String SERVICE_CIDR = "serviceCidr"; |
| private static final String B_CLASS_SUFFIX = "0.0/16"; |
| private static final String C_CLASS_SUFFIX = ".0/24"; |
| |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected ComponentConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected DriverService driverService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sNodeService k8sNodeService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sNetworkService k8sNetworkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sServiceService k8sServiceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sFlowRuleService k8sFlowRuleService; |
| |
| private final InternalK8sServiceListener k8sServiceListener = |
| new InternalK8sServiceListener(); |
| private final InternalK8sNodeListener k8sNodeListener = |
| new InternalK8sNodeListener(); |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private ApplicationId appId; |
| private NodeId localNodeId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| |
| localNodeId = clusterService.getLocalNode().id(); |
| leadershipService.runForLeadership(appId.name()); |
| k8sNodeService.addListener(k8sNodeListener); |
| k8sServiceService.addListener(k8sServiceListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| k8sNodeService.removeListener(k8sNodeListener); |
| k8sServiceService.removeListener(k8sServiceListener); |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| private void processNodePortEvent(K8sNode k8sNode, Service service, boolean install) { |
| |
| String clusterIp = service.getSpec().getClusterIP(); |
| for (ServicePort servicePort : service.getSpec().getPorts()) { |
| setNodeToServiceRules(k8sNode, clusterIp, servicePort, install); |
| setServiceToNodeLocalRules(k8sNode, clusterIp, servicePort, install); |
| setServiceToNodeRemoteRules(k8sNode, clusterIp, servicePort, install); |
| setExtToIngrRules(k8sNode, servicePort, install); |
| } |
| |
| k8sNodeService.completeNodes().forEach(n -> { |
| String podCidr = k8sNetworkService.network(n.hostname()).cidr(); |
| String fullCidr = NODE_IP_PREFIX + "." + |
| podCidr.split("\\.")[2] + "." + B_CLASS_SUFFIX; |
| |
| if (n.equals(k8sNode)) { |
| setIntgToExtLocalRules(k8sNode, getServiceCidr(), fullCidr, install); |
| } else { |
| setIntgToExtRemoteRules(k8sNode, n, getServiceCidr(), fullCidr, install); |
| } |
| }); |
| |
| setDefaultExtEgrRule(k8sNode, install); |
| } |
| |
| private void setDefaultExtEgrRule(K8sNode k8sNode, boolean install) { |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchInPort(PortNumber.LOCAL) |
| .matchEthType(Ethernet.TYPE_IPV4); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setOutput(k8sNode.extBridgePortNum()); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| k8sNode.extBridge(), |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_NODE_PORT_INTER_RULE, |
| EXT_ENTRY_TABLE, |
| install); |
| } |
| |
| private void setIntgToExtLocalRules(K8sNode k8sNode, String serviceCidr, |
| String shiftedCidr, boolean install) { |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPSrc(IpPrefix.valueOf(serviceCidr)) |
| .matchIPDst(IpPrefix.valueOf(shiftedCidr)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setOutput(k8sNode.intgToExtPatchPortNum()); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| k8sNode.intgBridge(), |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_CIDR_RULE, |
| ROUTING_TABLE, |
| install); |
| } |
| |
| private void setIntgToExtRemoteRules(K8sNode k8sNodeLocal, K8sNode k8sNodeRemote, |
| String serviceCidr, String shiftedCidr, |
| boolean install) { |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPSrc(IpPrefix.valueOf(serviceCidr)) |
| .matchIPDst(IpPrefix.valueOf(shiftedCidr)); |
| |
| ExtensionTreatment remote = buildExtension(deviceService, |
| k8sNodeLocal.intgBridge(), k8sNodeRemote.dataIp().getIp4Address()); |
| |
| PortNumber portNumber = tunnelPortNumByNetId( |
| k8sNodeLocal.hostname(), k8sNetworkService, k8sNodeLocal); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .extension(remote, k8sNodeLocal.intgBridge()) |
| .setOutput(portNumber); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| k8sNodeLocal.intgBridge(), |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_CIDR_RULE, |
| ROUTING_TABLE, |
| install); |
| } |
| |
| private void setExtToIngrRules(K8sNode k8sNode, ServicePort servicePort, |
| boolean install) { |
| String protocol = servicePort.getProtocol(); |
| int nodePort = servicePort.getNodePort(); |
| DeviceId deviceId = k8sNode.extBridge(); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(IpPrefix.valueOf(k8sNode.extBridgeIp(), HOST_CIDR)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setOutput(PortNumber.LOCAL); |
| |
| if (TCP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP) |
| .matchTcpSrc(TpPort.tpPort(nodePort)); |
| } else if (UDP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP) |
| .matchUdpSrc(TpPort.tpPort(nodePort)); |
| } |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| deviceId, |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_NODE_PORT_RULE, |
| EXT_ENTRY_TABLE, |
| install); |
| } |
| |
| private void setNodeToServiceRules(K8sNode k8sNode, |
| String clusterIp, |
| ServicePort servicePort, |
| boolean install) { |
| String protocol = servicePort.getProtocol(); |
| int nodePort = servicePort.getNodePort(); |
| int svcPort = servicePort.getPort(); |
| DeviceId deviceId = k8sNode.extBridge(); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(IpPrefix.valueOf(k8sNode.extBridgeIp(), HOST_CIDR)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setIpDst(IpAddress.valueOf(clusterIp)); |
| |
| if (TCP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP) |
| .matchTcpDst(TpPort.tpPort(nodePort)); |
| tBuilder.setTcpDst(TpPort.tpPort(svcPort)); |
| } else if (UDP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP) |
| .matchUdpDst(TpPort.tpPort(nodePort)); |
| tBuilder.setUdpDst(TpPort.tpPort(svcPort)); |
| } |
| |
| String podCidr = k8sNetworkService.network(k8sNode.hostname()).cidr(); |
| String prefix = NODE_IP_PREFIX + "." + podCidr.split("\\.")[2]; |
| |
| ExtensionTreatment loadTreatment = buildLoadExtension( |
| deviceService.getDevice(deviceId), B_CLASS, SRC, prefix); |
| tBuilder.extension(loadTreatment, deviceId) |
| .setOutput(k8sNode.extToIntgPatchPortNum()); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| k8sNode.extBridge(), |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_NODE_PORT_RULE, |
| EXT_ENTRY_TABLE, |
| install); |
| } |
| |
| private void setServiceToNodeLocalRules(K8sNode k8sNode, |
| String clusterIp, |
| ServicePort servicePort, |
| boolean install) { |
| String protocol = servicePort.getProtocol(); |
| int nodePort = servicePort.getNodePort(); |
| int svcPort = servicePort.getPort(); |
| DeviceId deviceId = k8sNode.extBridge(); |
| |
| String extBridgeIp = k8sNode.extBridgeIp().toString(); |
| String extBridgePrefix = getBclassIpPrefixFromCidr(extBridgeIp); |
| |
| String podCidr = k8sNetworkService.network(k8sNode.hostname()).cidr(); |
| String nodePrefix = NODE_IP_PREFIX + "." + podCidr.split("\\.")[2]; |
| |
| if (extBridgePrefix == null) { |
| return; |
| } |
| |
| String shiftedIp = unshiftIpDomain(extBridgeIp, extBridgePrefix, nodePrefix); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchInPort(k8sNode.extToIntgPatchPortNum()) |
| .matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf(clusterIp), HOST_CIDR)) |
| .matchIPDst(IpPrefix.valueOf(IpAddress.valueOf(shiftedIp), HOST_CIDR)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setIpSrc(k8sNode.extBridgeIp()) |
| .setEthSrc(k8sNode.extBridgeMac()); |
| |
| if (TCP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP) |
| .matchTcpSrc(TpPort.tpPort(svcPort)); |
| tBuilder.setTcpSrc(TpPort.tpPort(nodePort)); |
| } else if (UDP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP) |
| .matchUdpSrc(TpPort.tpPort(svcPort)); |
| tBuilder.setUdpSrc(TpPort.tpPort(nodePort)); |
| } |
| |
| String gatewayIp = k8sNode.extGatewayIp().toString(); |
| String gatewayPrefix = getBclassIpPrefixFromCidr(gatewayIp); |
| |
| if (gatewayPrefix == null) { |
| return; |
| } |
| |
| ExtensionTreatment loadTreatment = buildLoadExtension( |
| deviceService.getDevice(deviceId), B_CLASS, DST, gatewayPrefix); |
| tBuilder.extension(loadTreatment, deviceId) |
| .setOutput(PortNumber.LOCAL); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| deviceId, |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_NODE_PORT_RULE, |
| EXT_ENTRY_TABLE, |
| install); |
| } |
| |
| private void setServiceToNodeRemoteRules(K8sNode k8sNode, |
| String clusterIp, |
| ServicePort servicePort, |
| boolean install) { |
| String protocol = servicePort.getProtocol(); |
| int nodePort = servicePort.getNodePort(); |
| int svcPort = servicePort.getPort(); |
| DeviceId deviceId = k8sNode.extBridge(); |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchInPort(k8sNode.extToIntgPatchPortNum()) |
| .matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf(clusterIp), HOST_CIDR)); |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setIpSrc(k8sNode.extBridgeIp()) |
| .setEthSrc(k8sNode.extBridgeMac()); |
| |
| if (TCP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP) |
| .matchTcpSrc(TpPort.tpPort(svcPort)); |
| tBuilder.setTcpSrc(TpPort.tpPort(nodePort)); |
| } else if (UDP.equals(protocol)) { |
| sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP) |
| .matchUdpSrc(TpPort.tpPort(svcPort)); |
| tBuilder.setUdpSrc(TpPort.tpPort(nodePort)); |
| } |
| |
| String gatewayIp = k8sNode.extGatewayIp().toString(); |
| String prefix = getBclassIpPrefixFromCidr(gatewayIp); |
| |
| if (prefix == null) { |
| return; |
| } |
| |
| ExtensionTreatment loadTreatment = buildLoadExtension( |
| deviceService.getDevice(deviceId), B_CLASS, DST, prefix); |
| tBuilder.extension(loadTreatment, deviceId) |
| .setOutput(k8sNode.extBridgePortNum()); |
| |
| k8sFlowRuleService.setRule( |
| appId, |
| deviceId, |
| sBuilder.build(), |
| tBuilder.build(), |
| PRIORITY_NODE_PORT_REMOTE_RULE, |
| EXT_ENTRY_TABLE, |
| install); |
| } |
| |
| private String getServiceCidr() { |
| Set<ConfigProperty> properties = |
| configService.getProperties(K8sServiceHandler.class.getName()); |
| return getPropertyValue(properties, SERVICE_CIDR); |
| } |
| |
| private class InternalK8sServiceListener implements K8sServiceListener { |
| |
| private boolean isRelevantHelper() { |
| return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| } |
| |
| @Override |
| public void event(K8sServiceEvent event) { |
| switch (event.type()) { |
| case K8S_SERVICE_CREATED: |
| case K8S_SERVICE_UPDATED: |
| eventExecutor.execute(() -> processServiceCreation(event.subject())); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void processServiceCreation(Service service) { |
| if (!isRelevantHelper()) { |
| return; |
| } |
| |
| if (NODE_PORT_TYPE.equals(service.getSpec().getType())) { |
| k8sNodeService.completeNodes().forEach(n -> |
| processNodePortEvent(n, service, true) |
| ); |
| } |
| } |
| } |
| |
| private class InternalK8sNodeListener implements K8sNodeListener { |
| |
| private boolean isRelevantHelper() { |
| return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| } |
| |
| @Override |
| public void event(K8sNodeEvent event) { |
| switch (event.type()) { |
| case K8S_NODE_COMPLETE: |
| eventExecutor.execute(() -> processNodeCompletion(event.subject())); |
| break; |
| case K8S_NODE_INCOMPLETE: |
| default: |
| break; |
| } |
| } |
| |
| private void processNodeCompletion(K8sNode k8sNode) { |
| if (!isRelevantHelper()) { |
| return; |
| } |
| |
| k8sServiceService.services().stream() |
| .filter(s -> NODE_PORT_TYPE.equals(s.getSpec().getType())) |
| .forEach(s -> processNodePortEvent(k8sNode, s, true)); |
| } |
| } |
| } |