CodeCommitFastDeployMojo.java

/*
 * Copyright (c) 2016 ingenieux Labs
 *
 * 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 br.com.ingenieux.mojo.beanstalk.bundle;

import com.amazonaws.services.lambda.AWSLambda;
import com.amazonaws.services.lambda.AWSLambdaClient;
import com.amazonaws.services.lambda.model.InvokeRequest;
import com.amazonaws.services.lambda.model.InvokeResult;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.node.ObjectNode;

import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryBuilder;
import org.eclipse.jgit.lib.TextProgressMonitor;
import org.eclipse.jgit.transport.RefSpec;

import java.io.File;
import java.util.Date;
import java.util.List;

import static br.com.ingenieux.mojo.aws.util.CredentialsUtil.redact;
import static java.lang.String.format;
import static org.apache.commons.lang.StringUtils.isNotBlank;

/**
 * Uploads a packed war file to Amazon S3 for further Deployment.
 *
 * @since 0.2.8
 */
@Mojo(name = "codecommit-fast-deploy")
public class CodeCommitFastDeployMojo extends FastDeployMojo {
  @Parameter(property = "beanstalk.codeCommitRepoName", defaultValue = "${project.artifactId}-blobs")
  String repoName;

  @Override
  protected void configure() {
    super.configure();
  }

  @Override
  protected String getRemoteUrl(String commitId, String environmentName) throws MojoFailureException {
    return new CodeCommitRequestSigner(getAWSCredentials(), repoName, new Date()).getPushUrl();
  }

  @Override
  protected Git getGitRepo() throws Exception {
    if (stagingDirectory.exists() && new File(stagingDirectory, "HEAD").exists()) {
      Git git = Git.open(stagingDirectory);

      git.fetch().setRemote(getRemoteUrl(null, null)).setProgressMonitor(new TextProgressMonitor()).setRefSpecs(new RefSpec("refs/heads/master")).call();
    } else {
      Git.cloneRepository()
          .setURI(getRemoteUrl(null, null))
          .setProgressMonitor(new TextProgressMonitor())
          .setDirectory(stagingDirectory)
          .setNoCheckout(true)
          .setBare(true)
          .call();
    }

    Repository r = null;

    RepositoryBuilder b = new RepositoryBuilder().setGitDir(stagingDirectory).setWorkTree(sourceDirectory);

    r = b.build();

    final Git git = Git.wrap(r);

    return git;
  }

  @Override
  protected String lookupVersionLabelForCommitId(String commitId) throws Exception {
    String s3Bucket = getService().createStorageLocation().getS3Bucket();

    ObjectNode payload = objectMapper.createObjectNode();

    payload.put("applicationName", applicationName);

    payload.put("commitId", commitId);

    payload.put("repoName", repoName);

    payload.put("description", versionDescription);

    payload.put("accessKey", getAWSCredentials().getCredentials().getAWSAccessKeyId());

    payload.put("secretKey", getAWSCredentials().getCredentials().getAWSSecretKey());

    payload.put("region", getRegion().getName());

    payload.put("targetPath", format("s3://%s/apps/%s/versions/git-%s.zip", s3Bucket, applicationName, commitId));

    AWSLambda lambda = getClientFactory().getService(AWSLambdaClient.class);

    final String payloadAsString = objectMapper.writeValueAsString(payload);

    getLog().info("Calling beanstalk-codecommit-deployer with arguments set to: " + redact(payloadAsString));

    final InvokeResult invoke = lambda.invoke(new InvokeRequest().withFunctionName("beanstalker-codecommit-deployer").withPayload(payloadAsString));

    String resultAsString = new String(invoke.getPayload().array(), "utf-8");

    if (isNotBlank(invoke.getFunctionError())) {
      final String errorMessage = "Unexpected: " + invoke.getFunctionError();

      getLog().info(errorMessage);

      throw new RuntimeException(errorMessage);
    } else {
      List<String> messages = objectMapper.readValue(resultAsString, new TypeReference<List<String>>() {});

      for (String m : messages) {
        getLog().info(m);
      }
    }

    return super.lookupVersionLabelForCommitId(commitId);
  }
}