com.netflix.spinnaker.orca.clouddriver.tasks.providers.aws.AmazonImageFinder.java Source code

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Here is the source code for com.netflix.spinnaker.orca.clouddriver.tasks.providers.aws.AmazonImageFinder.java

Source

/*
 * Copyright 2016 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.spinnaker.orca.clouddriver.tasks.providers.aws;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.netflix.spinnaker.orca.clouddriver.OortService;
import com.netflix.spinnaker.orca.clouddriver.tasks.image.ImageFinder;
import com.netflix.spinnaker.orca.pipeline.model.Stage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.*;
import java.util.stream.Collectors;

import static java.util.stream.Collectors.toMap;

@Component
public class AmazonImageFinder implements ImageFinder {
    @Autowired
    OortService oortService;

    @Autowired
    ObjectMapper objectMapper;

    @Override
    public Collection<ImageDetails> byTags(Stage stage, String packageName, Map<String, String> tags) {
        StageData stageData = (StageData) stage.mapTo(StageData.class);
        List<AmazonImage> allMatchedImages = oortService
                .findImage(getCloudProvider(), packageName, null, null, prefixTags(tags)).stream()
                .map(image -> objectMapper.convertValue(image, AmazonImage.class)).sorted()
                .collect(Collectors.toList());

        List<ImageDetails> imageDetails = new ArrayList<>();

        /*
         * For each region, find the most recently created image.
         * (optimized for readability over efficiency given the generally small # of images)
         */
        stageData.regions
                .forEach(region -> allMatchedImages.stream().filter(image -> image.amis.containsKey(region))
                        .findFirst().map(image -> imageDetails.add(image.toAmazonImageDetails(region))));

        return imageDetails;
    }

    @Override
    public String getCloudProvider() {
        return "aws";
    }

    static Map<String, String> prefixTags(Map<String, String> tags) {
        return tags.entrySet().stream().collect(toMap(entry -> "tag:" + entry.getKey(), Map.Entry::getValue));
    }

    static class StageData {
        @JsonProperty
        Collection<String> regions;
    }

    static class AmazonImage implements Comparable<AmazonImage> {
        @JsonProperty
        String imageName;

        @JsonProperty
        Map<String, Object> attributes;

        @JsonProperty
        Map<String, List<String>> amis;

        ImageDetails toAmazonImageDetails(String region) {
            AmazonImageDetails amazonImageDetails = new AmazonImageDetails();
            amazonImageDetails.put("region", region);

            amazonImageDetails.put("imageName", imageName);
            amazonImageDetails.put("imageId", amis.get(region).get(0));

            amazonImageDetails.put("ami", imageName);
            amazonImageDetails.put("amiId", amis.get(region).get(0));

            return amazonImageDetails;
        }

        @Override
        public int compareTo(AmazonImage o) {
            if (attributes.get("creationDate") == null) {
                return 1;
            }

            if (o.attributes.get("creationDate") == null) {
                return -1;
            }

            // a lexicographic sort is sufficient given that `creationDate` is ISO 8601
            return o.attributes.get("creationDate").toString().compareTo(attributes.get("creationDate").toString());
        }
    }

    private static class AmazonImageDetails extends HashMap<String, String> implements ImageDetails {
        @Override
        public String getImageId() {
            return super.get("imageId");
        }

        @Override
        public String getImageName() {
            return super.get("imageName");
        }
    }
}