com.erigir.maven.plugin.FlipEnvironmentLiveMojo Maven / Gradle / Ivy

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Seedy (CD) is a maven plugin for automating continuous deployment to Amazon Web Services
There is a newer version: 0.71
package com.erigir.maven.plugin;

import com.amazonaws.services.elasticbeanstalk.AWSElasticBeanstalkClient;
import com.amazonaws.services.elasticbeanstalk.model.DescribeEnvironmentsResult;
import com.amazonaws.services.elasticbeanstalk.model.EnvironmentDescription;
import com.amazonaws.services.elasticbeanstalk.model.SwapEnvironmentCNAMEsRequest;
import com.amazonaws.services.elasticbeanstalk.model.TerminateEnvironmentRequest;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

/**
 Copyright 2014 Christopher Weiss

 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.
 **/

@Mojo(name = "flip-environment", defaultPhase = LifecyclePhase.PRE_INTEGRATION_TEST)
public class FlipEnvironmentLiveMojo extends AbstractSeedyMojo {

    /**
     * If deploying to a different account, this is the ARN of the role in that account
     * with privs to execute the deployment
     */
    @Parameter(property = "s3-upload.assumedRoleArn")
    String assumedRoleArn;

    /**
     * If deploying to a different account, this is the external ID set on the role in that account
     * with privs to execute the deployment
     */
    @Parameter(property = "s3-upload.assumedRoleExternalId")
    String assumedRoleExternalId;

    /**
     * Application Name in elastic beanstalk
     */
    @Parameter(property = "flip-environment.applicationName", required = true)
    private String applicationName;

    /**
     * Machine type
     */
    @Parameter(property = "flip-environment.liveServerDomainName", required = true)
    private String liveServerDomainName;

    /**
     * Max Seconds to wait before giving up
     */
    @Parameter(property = "flip-environment.preFlipLiveWaitSeconds", defaultValue = "15")
    private int preFlipLiveWaitSeconds;

    /**
     * Machine type
     */
    @Parameter(property = "flip-environment.terminateOldEnviroment", defaultValue = "false")
    private boolean terminateOldEnviroment;

    @Override
    public void execute() throws MojoExecutionException {
        int buildNumber = buildNumber(1);
        String environmentName = applicationName + "-" + buildNumber;

        getLog().info("Finding current live url");
        AWSElasticBeanstalkClient eb = new AWSElasticBeanstalkClient(credentials());
        EnvironmentDescription liveEnvironment = findEnvironmentByCNAME(eb, liveServerDomainName);

        getLog().info("Swapping new version live (old live is " + liveEnvironment + ")");
        SwapEnvironmentCNAMEsRequest swap = new SwapEnvironmentCNAMEsRequest().withSourceEnvironmentName(liveEnvironment.getEnvironmentName()).withDestinationEnvironmentName(environmentName);
        eb.swapEnvironmentCNAMEs(swap);

        if (terminateOldEnviroment) {
            getLog().info("Waiting " + preFlipLiveWaitSeconds + " seconds post live before terminating old environment");
            safeSleep(preFlipLiveWaitSeconds * 1000);

            getLog().info("Terminating old environment");
            TerminateEnvironmentRequest ter = new TerminateEnvironmentRequest().withEnvironmentName(liveEnvironment.getEnvironmentName());
            eb.terminateEnvironment(ter);
        }

        getLog().info("Flip live is now complete");
    }

    private EnvironmentDescription findEnvironmentByCNAME(AWSElasticBeanstalkClient eb, String domainName) {
        DescribeEnvironmentsResult res = eb.describeEnvironments();

        EnvironmentDescription rval = null;
        for (EnvironmentDescription ed : res.getEnvironments()) {
            if (ed.getCNAME().equals(domainName)) {
                rval = ed;
            }
        }
        return rval;
    }

    @Override
    public String getAssumedRoleArn() {
        return assumedRoleArn;
    }

    @Override
    public String getAssumedRoleExternalId() {
        return assumedRoleExternalId;
    }
}