aliyun-ecs/src/main/java/org/jclouds/aliyun/ecs/compute/ECSComputeService.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.jclouds.aliyun.ecs.compute;

import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.base.Supplier;
import com.google.common.collect.Iterables;
import com.google.common.util.concurrent.ListeningExecutorService;
import org.jclouds.Constants;
import org.jclouds.aliyun.ecs.ECSComputeServiceApi;
import org.jclouds.aliyun.ecs.compute.strategy.CleanupResources;
import org.jclouds.aliyun.ecs.domain.SecurityGroup;
import org.jclouds.aliyun.ecs.domain.VSwitch;
import org.jclouds.aliyun.ecs.domain.options.ListVSwitchesOptions;
import org.jclouds.aliyun.ecs.domain.regionscoped.RegionAndId;
import org.jclouds.collect.Memoized;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.compute.callables.RunScriptOnNode;
import org.jclouds.compute.domain.Hardware;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.TemplateBuilder;
import org.jclouds.compute.extensions.ImageExtension;
import org.jclouds.compute.extensions.SecurityGroupExtension;
import org.jclouds.compute.extensions.internal.DelegatingImageExtension;
import org.jclouds.compute.internal.BaseComputeService;
import org.jclouds.compute.internal.PersistNodeCredentials;
import org.jclouds.compute.options.TemplateOptions;
import org.jclouds.compute.strategy.CreateNodesInGroupThenAddToSet;
import org.jclouds.compute.strategy.DestroyNodeStrategy;
import org.jclouds.compute.strategy.GetImageStrategy;
import org.jclouds.compute.strategy.GetNodeMetadataStrategy;
import org.jclouds.compute.strategy.InitializeRunScriptOnNodeOrPlaceInBadMap;
import org.jclouds.compute.strategy.ListNodesStrategy;
import org.jclouds.compute.strategy.RebootNodeStrategy;
import org.jclouds.compute.strategy.ResumeNodeStrategy;
import org.jclouds.compute.strategy.SuspendNodeStrategy;
import org.jclouds.domain.Credentials;
import org.jclouds.domain.Location;
import org.jclouds.scriptbuilder.functions.InitAdminAccess;

import javax.annotation.Nullable;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Provider;
import javax.inject.Singleton;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicReference;

import static org.jclouds.compute.config.ComputeServiceProperties.TIMEOUT_NODE_RUNNING;
import static org.jclouds.compute.config.ComputeServiceProperties.TIMEOUT_NODE_SUSPENDED;
import static org.jclouds.compute.config.ComputeServiceProperties.TIMEOUT_NODE_TERMINATED;

@Singleton
public class ECSComputeService extends BaseComputeService {
   private final CleanupResources cleanupResources;

   @Inject
   protected ECSComputeService(ComputeServiceContext context, Map<String, Credentials> credentialStore,
                               @Memoized Supplier<Set<? extends Image>> images, @Memoized Supplier<Set<? extends Hardware>> sizes,
                               @Memoized Supplier<Set<? extends Location>> locations, ListNodesStrategy listNodesStrategy,
                               GetImageStrategy getImageStrategy, GetNodeMetadataStrategy getNodeMetadataStrategy,
                               CreateNodesInGroupThenAddToSet runNodesAndAddToSetStrategy, RebootNodeStrategy rebootNodeStrategy,
                               DestroyNodeStrategy destroyNodeStrategy, ResumeNodeStrategy startNodeStrategy,
                               SuspendNodeStrategy stopNodeStrategy, Provider<TemplateBuilder> templateBuilderProvider,
                               @Named("DEFAULT") Provider<TemplateOptions> templateOptionsProvider,
                               @Named(TIMEOUT_NODE_RUNNING) Predicate<AtomicReference<NodeMetadata>> nodeRunning,
                               @Named(TIMEOUT_NODE_TERMINATED) Predicate<AtomicReference<NodeMetadata>> nodeTerminated,
                               @Named(TIMEOUT_NODE_SUSPENDED) Predicate<AtomicReference<NodeMetadata>> nodeSuspended,
                               InitializeRunScriptOnNodeOrPlaceInBadMap.Factory initScriptRunnerFactory,
                               RunScriptOnNode.Factory runScriptOnNodeFactory, InitAdminAccess initAdminAccess,
                               PersistNodeCredentials persistNodeCredentials,
                               @Named(Constants.PROPERTY_USER_THREADS) ListeningExecutorService userExecutor,
                               CleanupResources cleanupResources, Optional<ImageExtension> imageExtension,
                               Optional<SecurityGroupExtension> securityGroupExtension,
                               DelegatingImageExtension.Factory delegatingImageExtension) {
      super(context, credentialStore, images, sizes, locations, listNodesStrategy, getImageStrategy,
              getNodeMetadataStrategy, runNodesAndAddToSetStrategy, rebootNodeStrategy, destroyNodeStrategy,
              startNodeStrategy, stopNodeStrategy, templateBuilderProvider, templateOptionsProvider, nodeRunning,
              nodeTerminated, nodeSuspended, initScriptRunnerFactory, initAdminAccess, runScriptOnNodeFactory,
              persistNodeCredentials, userExecutor, imageExtension, securityGroupExtension, delegatingImageExtension);
      this.cleanupResources = cleanupResources;
   }

   @Override
   protected void cleanUpIncidentalResourcesOfDeadNodes(Set<? extends NodeMetadata> deadNodes) {
      for (NodeMetadata deadNode : deadNodes) {
         RegionAndId regionAndId = RegionAndId.fromSlashEncoded(deadNode.getId());
         Set<String> tags = deadNode.getTags();
         String vSwitchId = extractVSwitchId(tags);
         VSwitch vSwitch = context.unwrapApi(ECSComputeServiceApi.class).vSwitchApi().list(deadNode.getLocation().getId(), ListVSwitchesOptions.Builder.vSwitchId(vSwitchId)).first().orNull();
         String vpcId = vSwitch.vpcId();

         try {
            cleanupResources.cleanupNode(regionAndId);
         } catch (Exception ex) {
            logger.warn(ex, "Error cleaning up resources for node %s", deadNode);
         }

         List<SecurityGroup> securityGroups = cleanupResources.findOrphanedSecurityGroups(regionAndId.regionId(), deadNode.getGroup());
         for (SecurityGroup securityGroup : securityGroups) {
            logger.debug(">> destroying security group %s ...", securityGroup.id());
            if (cleanupResources.cleanupSecurityGroupIfOrphaned(regionAndId.regionId(), securityGroup.id())) {
               logger.debug(">> security group: (%s) has been deleted.", securityGroup.id());
            } else {
               logger.warn(">> security group: (%s) has not been deleted.", securityGroup.id());
            }
         }

         // FIXME not sure it is correct to always delete vSwitch and VPC_PREFIX
         logger.debug(">> destroying vSwitch %s ...", vSwitchId);
         if (cleanupResources.cleanupVSwitchIfOrphaned(regionAndId.regionId(), vSwitchId)) {
            logger.debug(">> vSwitch: (%s) has been deleted.", vSwitchId);
         } else {
            logger.warn(">> vSwitch: (%s) has not been deleted.", vSwitchId);
         }

         logger.debug(">> destroying vpc %s ...", vpcId);
         try {
            cleanupResources.cleanupVPCIfOrphaned(regionAndId.regionId(), vpcId);
            logger.debug(">> VPC_PREFIX: (%s) has been deleted.", vpcId);
         } catch (IllegalArgumentException e) {
            logger.warn(">> VPC_PREFIX: (%s) has not been deleted.", vpcId);
         }
      }
   }

   private String extractVSwitchId(Set<String> tags) {
      String vSwitchIdTag = Iterables.tryFind(tags, new Predicate<String>() {
         @Override
         public boolean apply(@Nullable String input) {
            return input.startsWith("vsw-");
         }
      }).orNull();
      return vSwitchIdTag;
   }
}