io.macgyver.plugin.cloud.aws.scanner.AMIScanner.java Source code

Introduction

Here is the source code for io.macgyver.plugin.cloud.aws.scanner.AMIScanner.java

Source

/**
 * 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 io.macgyver.plugin.cloud.aws.scanner;

import java.util.Optional;

import com.amazonaws.regions.Region;
import com.amazonaws.services.ec2.AmazonEC2Client;
import com.amazonaws.services.ec2.model.DescribeImagesRequest;
import com.amazonaws.services.ec2.model.DescribeImagesResult;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;

import io.macgyver.neorx.rest.NeoRxClient;
import io.macgyver.plugin.cloud.aws.AWSServiceClient;

public class AMIScanner extends AWSServiceScanner {

    public AMIScanner(AWSServiceClient client, NeoRxClient neo4j) {
        super(client, neo4j);
    }

    @Override
    public Optional<String> computeArn(JsonNode n) {

        String region = n.path("aws_region").asText(null);
        String imageId = n.path("aws_imageId").asText(null);

        Preconditions.checkState(!Strings.isNullOrEmpty(region), "aws_region not set");
        Preconditions.checkState(!Strings.isNullOrEmpty(imageId), "aws_imageId not set");

        return Optional.of(String.format("arn:aws:ec2:%s::image/%s", region, imageId));
    }

    @Override
    public void scan(Region region) {
        AmazonEC2Client c = getAWSServiceClient().createEC2Client(region);

        NeoRxClient neoRx = getNeoRxClient();
        Preconditions.checkNotNull(neoRx);
        GraphNodeGarbageCollector gc = newGarbageCollector().label("AwsAmi").region(region);
        DescribeImagesRequest req = new DescribeImagesRequest().withOwners("self");
        DescribeImagesResult result = c.describeImages(req);

        result.getImages().forEach(i -> {
            try {
                ObjectNode n = convertAwsObject(i, region);

                String cypher = "merge (x:AwsAmi {aws_arn:{aws_arn}}) set x+={props} set x.updateTs=timestamp()";
                neoRx.execCypher(cypher, "aws_arn", n.path("aws_arn").asText(), "props", n)
                        .forEach(gc.MERGE_ACTION);

            } catch (RuntimeException e) {
                logger.warn("problem scanning AMI", e);
            }
        });
        gc.invoke();
    }

}