| /* |
| * 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.web; |
| |
| import io.fabric8.kubernetes.client.KubernetesClient; |
| import org.onlab.util.ItemNotFoundException; |
| import org.onosproject.k8snetworking.api.K8sEndpointsAdminService; |
| import org.onosproject.k8snetworking.api.K8sIngressAdminService; |
| import org.onosproject.k8snetworking.api.K8sNamespaceAdminService; |
| import org.onosproject.k8snetworking.api.K8sNetworkAdminService; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyAdminService; |
| import org.onosproject.k8snetworking.api.K8sPodAdminService; |
| import org.onosproject.k8snetworking.api.K8sServiceAdminService; |
| import org.onosproject.k8snetworking.util.K8sNetworkingUtil; |
| import org.onosproject.k8snode.api.K8sApiConfig; |
| import org.onosproject.k8snode.api.K8sApiConfigService; |
| import org.onosproject.k8snode.api.K8sNode; |
| import org.onosproject.k8snode.api.K8sNodeAdminService; |
| import org.onosproject.k8snode.api.K8sNodeState; |
| import org.onosproject.rest.AbstractWebResource; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| |
| import static java.lang.Thread.sleep; |
| import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.syncPortFromPod; |
| import static org.onosproject.k8snode.api.K8sNode.Type.MASTER; |
| import static org.onosproject.k8snode.api.K8sNode.Type.MINION; |
| import static org.onosproject.k8snode.api.K8sNodeState.COMPLETE; |
| |
| /** |
| * REST interface for synchronizing kubernetes network states and rules. |
| */ |
| @Path("management") |
| public class K8sManagementWebResource extends AbstractWebResource { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final long SLEEP_MS = 10000; // we wait 10s |
| private static final long TIMEOUT_MS = 30000; // we wait 30s |
| |
| private final K8sApiConfigService configService = get(K8sApiConfigService.class); |
| private final K8sPodAdminService podAdminService = get(K8sPodAdminService.class); |
| private final K8sNamespaceAdminService namespaceAdminService = |
| get(K8sNamespaceAdminService.class); |
| private final K8sServiceAdminService serviceAdminService = |
| get(K8sServiceAdminService.class); |
| private final K8sIngressAdminService ingressAdminService = |
| get(K8sIngressAdminService.class); |
| private final K8sEndpointsAdminService endpointsAdminService = |
| get(K8sEndpointsAdminService.class); |
| private final K8sNetworkAdminService networkAdminService = |
| get(K8sNetworkAdminService.class); |
| private final K8sNodeAdminService nodeAdminService = |
| get(K8sNodeAdminService.class); |
| private final K8sNetworkPolicyAdminService policyAdminService = |
| get(K8sNetworkPolicyAdminService.class); |
| |
| /** |
| * Synchronizes the all states with kubernetes API server. |
| * |
| * @return 200 OK with sync result, 404 not found |
| * @throws InterruptedException exception |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("sync/states") |
| public Response syncStates() { |
| K8sApiConfig config = |
| configService.apiConfigs().stream().findAny().orElse(null); |
| if (config == null) { |
| throw new ItemNotFoundException("Failed to find valid kubernetes API configuration."); |
| } |
| |
| KubernetesClient client = K8sNetworkingUtil.k8sClient(config); |
| |
| if (client == null) { |
| throw new ItemNotFoundException("Failed to connect to kubernetes API server."); |
| } |
| |
| client.namespaces().list().getItems().forEach(ns -> { |
| if (namespaceAdminService.namespace(ns.getMetadata().getUid()) != null) { |
| namespaceAdminService.updateNamespace(ns); |
| } else { |
| namespaceAdminService.createNamespace(ns); |
| } |
| }); |
| |
| client.services().inAnyNamespace().list().getItems().forEach(svc -> { |
| if (serviceAdminService.service(svc.getMetadata().getUid()) != null) { |
| serviceAdminService.updateService(svc); |
| } else { |
| serviceAdminService.createService(svc); |
| } |
| }); |
| |
| client.endpoints().inAnyNamespace().list().getItems().forEach(ep -> { |
| if (endpointsAdminService.endpoints(ep.getMetadata().getUid()) != null) { |
| endpointsAdminService.updateEndpoints(ep); |
| } else { |
| endpointsAdminService.createEndpoints(ep); |
| } |
| }); |
| |
| client.pods().inAnyNamespace().list().getItems().forEach(pod -> { |
| if (podAdminService.pod(pod.getMetadata().getUid()) != null) { |
| podAdminService.updatePod(pod); |
| } else { |
| podAdminService.createPod(pod); |
| } |
| |
| syncPortFromPod(pod, networkAdminService); |
| }); |
| |
| client.extensions().ingresses().inAnyNamespace().list().getItems().forEach(ingress -> { |
| if (ingressAdminService.ingress(ingress.getMetadata().getUid()) != null) { |
| ingressAdminService.updateIngress(ingress); |
| } else { |
| ingressAdminService.createIngress(ingress); |
| } |
| }); |
| |
| client.network().networkPolicies().inAnyNamespace().list().getItems().forEach(policy -> { |
| if (policyAdminService.networkPolicy(policy.getMetadata().getUid()) != null) { |
| policyAdminService.updateNetworkPolicy(policy); |
| } else { |
| policyAdminService.createNetworkPolicy(policy); |
| } |
| }); |
| |
| return ok(mapper().createObjectNode()).build(); |
| } |
| |
| /** |
| * Synchronizes the flow rules. |
| * |
| * @return 200 OK with sync result, 404 not found |
| */ |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("sync/rules") |
| public Response syncRules() { |
| |
| syncRulesBase(); |
| return ok(mapper().createObjectNode()).build(); |
| } |
| |
| private void syncRulesBase() { |
| nodeAdminService.completeNodes(MASTER).forEach(this::syncRulesBaseForNode); |
| nodeAdminService.completeNodes(MINION).forEach(this::syncRulesBaseForNode); |
| } |
| |
| private void syncRulesBaseForNode(K8sNode k8sNode) { |
| K8sNode updated = k8sNode.updateState(K8sNodeState.INIT); |
| nodeAdminService.updateNode(updated); |
| |
| boolean result = true; |
| long timeoutExpiredMs = System.currentTimeMillis() + TIMEOUT_MS; |
| |
| while (nodeAdminService.node(k8sNode.hostname()).state() != COMPLETE) { |
| |
| long waitMs = timeoutExpiredMs - System.currentTimeMillis(); |
| |
| try { |
| sleep(SLEEP_MS); |
| } catch (InterruptedException e) { |
| log.error("Exception caused during node synchronization..."); |
| } |
| |
| if (nodeAdminService.node(k8sNode.hostname()).state() == COMPLETE) { |
| break; |
| } else { |
| nodeAdminService.updateNode(updated); |
| log.info("Failed to synchronize flow rules, retrying..."); |
| } |
| |
| if (waitMs <= 0) { |
| result = false; |
| break; |
| } |
| } |
| |
| if (result) { |
| log.info("Successfully synchronize flow rules for node {}!", k8sNode.hostname()); |
| } else { |
| log.warn("Failed to synchronize flow rules for node {}.", k8sNode.hostname()); |
| } |
| } |
| } |