/*
*
* Copyright 2012 Netflix, Inc.
*
* 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 com.netflix.simianarmy.aws.janitor.crawler;
import com.amazonaws.services.autoscaling.model.AutoScalingGroup;
import com.amazonaws.services.autoscaling.model.LaunchConfiguration;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.netflix.simianarmy.Resource;
import com.netflix.simianarmy.ResourceType;
import com.netflix.simianarmy.aws.AWSResource;
import com.netflix.simianarmy.aws.AWSResourceType;
import com.netflix.simianarmy.client.aws.AWSClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import java.util.Set;
/**
* The crawler to crawl AWS launch configurations for janitor monkey.
*/
public class LaunchConfigJanitorCrawler extends AbstractAWSJanitorCrawler {
/** The name representing the additional field name of a flag indicating if the launch config
* if used by an auto scaling group. */
public static final String LAUNCH_CONFIG_FIELD_USED_BY_ASG = "USED_BY_ASG";
/** The Constant LOGGER. */
private static final Logger LOGGER = LoggerFactory.getLogger(LaunchConfigJanitorCrawler.class);
/**
* Instantiates a new basic launch configuration crawler.
* @param awsClient
* the aws client
*/
public LaunchConfigJanitorCrawler(AWSClient awsClient) {
super(awsClient);
}
@Override
public EnumSet<? extends ResourceType> resourceTypes() {
return EnumSet.of(AWSResourceType.LAUNCH_CONFIG);
}
@Override
public List<Resource> resources(ResourceType resourceType) {
if ("LAUNCH_CONFIG".equals(resourceType.name())) {
return getLaunchConfigResources();
}
return Collections.emptyList();
}
@Override
public List<Resource> resources(String... resourceIds) {
return getLaunchConfigResources(resourceIds);
}
private List<Resource> getLaunchConfigResources(String... launchConfigNames) {
List<Resource> resources = Lists.newArrayList();
AWSClient awsClient = getAWSClient();
Set<String> usedLCs = Sets.newHashSet();
for (AutoScalingGroup asg : awsClient.describeAutoScalingGroups()) {
usedLCs.add(asg.getLaunchConfigurationName());
}
for (LaunchConfiguration launchConfiguration : awsClient.describeLaunchConfigurations(launchConfigNames)) {
String lcName = launchConfiguration.getLaunchConfigurationName();
Resource lcResource = new AWSResource().withId(lcName)
.withRegion(getAWSClient().region()).withResourceType(AWSResourceType.LAUNCH_CONFIG)
.withLaunchTime(launchConfiguration.getCreatedTime());
lcResource.setOwnerEmail(getOwnerEmailForResource(lcResource));
lcResource.setAdditionalField(LAUNCH_CONFIG_FIELD_USED_BY_ASG, String.valueOf(usedLCs.contains(lcName)));
resources.add(lcResource);
}
return resources;
}
}