| /* |
| * 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 com.google.common.base.Strings; |
| import com.google.common.collect.ImmutableSet; |
| import io.fabric8.kubernetes.api.model.networking.NetworkPolicy; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.ListenerRegistry; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyAdminService; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyEvent; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyListener; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyService; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyStore; |
| import org.onosproject.k8snetworking.api.K8sNetworkPolicyStoreDelegate; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| |
| import java.util.Set; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides implementation of administering and interfacing kubernetes network policy. |
| */ |
| @Component( |
| immediate = true, |
| service = {K8sNetworkPolicyAdminService.class, K8sNetworkPolicyService.class } |
| ) |
| public class K8sNetworkPolicyManager |
| extends ListenerRegistry<K8sNetworkPolicyEvent, K8sNetworkPolicyListener> |
| implements K8sNetworkPolicyAdminService, K8sNetworkPolicyService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final String MSG_NETWORK_POLICY = "Kubernetes network policy %s %s"; |
| private static final String MSG_CREATED = "created"; |
| private static final String MSG_UPDATED = "updated"; |
| private static final String MSG_REMOVED = "removed"; |
| |
| private static final String |
| ERR_NULL_NETWORK_POLICY = "Kubernetes network policy cannot be null"; |
| private static final String |
| ERR_NULL_NETWORK_POLICY_UID = "Kubernetes network policy UID cannot be null"; |
| |
| private static final String ERR_IN_USE = " still in use"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected K8sNetworkPolicyStore k8sNetworkPolicyStore; |
| |
| private final K8sNetworkPolicyStoreDelegate |
| delegate = new InternalNetworkPolicyStorageDelegate(); |
| |
| private ApplicationId appId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| |
| k8sNetworkPolicyStore.setDelegate(delegate); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| k8sNetworkPolicyStore.unsetDelegate(delegate); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createNetworkPolicy(NetworkPolicy networkPolicy) { |
| checkNotNull(networkPolicy, ERR_NULL_NETWORK_POLICY); |
| checkArgument(!Strings.isNullOrEmpty(networkPolicy.getMetadata().getUid()), |
| ERR_NULL_NETWORK_POLICY_UID); |
| |
| k8sNetworkPolicyStore.createNetworkPolicy(networkPolicy); |
| |
| log.info(String.format(MSG_NETWORK_POLICY, |
| networkPolicy.getMetadata().getName(), MSG_CREATED)); |
| } |
| |
| @Override |
| public void updateNetworkPolicy(NetworkPolicy networkPolicy) { |
| checkNotNull(networkPolicy, ERR_NULL_NETWORK_POLICY); |
| checkArgument(!Strings.isNullOrEmpty(networkPolicy.getMetadata().getUid()), |
| ERR_NULL_NETWORK_POLICY_UID); |
| |
| k8sNetworkPolicyStore.updateNetworkPolicy(networkPolicy); |
| |
| log.info(String.format(MSG_NETWORK_POLICY, |
| networkPolicy.getMetadata().getName(), MSG_UPDATED)); |
| } |
| |
| @Override |
| public void removeNetworkPolicy(String uid) { |
| checkArgument(!Strings.isNullOrEmpty(uid), ERR_NULL_NETWORK_POLICY_UID); |
| |
| synchronized (this) { |
| if (isNetworkPolicyInUse(uid)) { |
| final String error = String.format(MSG_NETWORK_POLICY, uid, ERR_IN_USE); |
| throw new IllegalStateException(error); |
| } |
| |
| NetworkPolicy networkPolicy = k8sNetworkPolicyStore.removeNetworkPolicy(uid); |
| |
| if (networkPolicy != null) { |
| log.info(String.format(MSG_NETWORK_POLICY, |
| networkPolicy.getMetadata().getName(), MSG_REMOVED)); |
| } |
| } |
| } |
| |
| @Override |
| public void clear() { |
| k8sNetworkPolicyStore.clear(); |
| } |
| |
| @Override |
| public NetworkPolicy networkPolicy(String uid) { |
| checkArgument(!Strings.isNullOrEmpty(uid), ERR_NULL_NETWORK_POLICY_UID); |
| return k8sNetworkPolicyStore.networkPolicy(uid); |
| } |
| |
| @Override |
| public Set<NetworkPolicy> networkPolicies() { |
| return ImmutableSet.copyOf(k8sNetworkPolicyStore.networkPolicies()); |
| } |
| |
| private boolean isNetworkPolicyInUse(String uid) { |
| return false; |
| } |
| |
| private class InternalNetworkPolicyStorageDelegate |
| implements K8sNetworkPolicyStoreDelegate { |
| |
| @Override |
| public void notify(K8sNetworkPolicyEvent event) { |
| if (event != null) { |
| log.trace("send kubernetes network policy event {}", event); |
| process(event); |
| } |
| } |
| } |
| } |