Gitlab Pipeline With AWS Codedeploy

#gitlab #codedeploy #cicd #devops

Flow Chart

1. Create Codedeploy

Follow the link to create lambda function which is trigger by S3 notification event and then create code deployment.
Gitlab pipeline job will push deploy.zip to S3 so that lambda function will create code deployment for running install script on target instance by codedeploy-agent

2. Gitlab pipeline jobs to build and deploy

image_version.txt is packed in deploy.zip for codedeploy get version to deploy
Codedeploy structure:
- application: service_name (app, api, myweb, etc.)
- deployment group: branch_name (feature, develop, hotfix, master, integration, etc.), each one will have same or different target instancce

.gitlab-ci.yml

</li>
</ul>

<p>build:<br>
  stage: build<br>
  script:<br>
    - echo compile and package<br>
    - echo tag image version<br>
    - branch_name=$(echo $CI_COMMIT_REF_NAME | sed 's/\//-/g')<br>
    - version="$branch_name-$CI_PIPELINE_ID"<br>
    - echo login ECR and push image<br>
    - eval $(aws ecr get-login --no-include-email --region ap-northeast-1)<br>
    - docker tag app:latest myimage:${version}<br>
    - docker push myimage:${version}<br>
  only:<br>
    refs:<br>
      - feature<br>
      - develop<br>
      - integration<br>
      - hotfix<br>
      - master<br>
    changes:<br>
      - src/*<em>/</em><br>
  tags:<br>
    - build-runner</p>

<p>deploy:<br>
  stage: deploy<br>
  script:<br>
    - echo "Deploy app"<br>
    - branch_name=$(echo $CI_COMMIT_REF_NAME | sed 's/\//-/g')<br>
    - version="$branch_name-$CI_PIPELINE_ID"<br>
    - echo $version &gt; codedeploy/image_version.txt<br>
    - cd codedeploy<br>
    - zip -r deploy.zip appspec.yml image_version.txt scripts<br>
    - aws s3 cp deploy.zip s3://codedeploy/automation/${CI_COMMIT_REF_NAME}/app/deploy.zip --metadata x-amz-meta-application-name=app,x-amz-meta-deploymentgroup-name=${obj}<br>
  only:<br>
    refs:<br>
      - feature<br>
      - develop<br>
      - integration<br>
      - hotfix<br>
      - master<br>
    changes:<br>
      - src/*<em>/</em><br>
  tags:<br>
    - deploy-runner</p>

<p></p>
<div class="highlight"><pre class="highlight plaintext"><code>
###**3. Install script**
![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/texdrp5op28irl7g35b2.png)
- The script is run on target instance by codedeploy-agent [`install.sh`](https://github.com/vumdao/codedeploy/blob/master/cicd/codedeploy/scripts/install.sh)
</code></pre></div>
<p></p>

<p>$ cat codedeploy/scripts/install.sh </p>
<h1>
  <a name="binbash" href="#binbash">
  </a>
  !/bin/bash
</h1>
<h1>
  <a name="script-is-run-on-instance" href="#script-is-run-on-instance">
  </a>
  Script is run on instance
</h1>
<h1>
  <a name="get-app-version" href="#get-app-version">
  </a>
  Get app version
</h1>

<p>dir=$(dirname "$0")<br>
version=$(cat ${dir}/../image_version.txt)</p>
<h1>
  <a name="tracking-version" href="#tracking-version">
  </a>
  Tracking version
</h1>

<p>OPS_DIR="/ect/ops"<br>
export APP_VERSION=${version}</p>
<h1>
  <a name="compose-up" href="#compose-up">
  </a>
  Compose up
</h1>

<p>docker-compose up -d app</p>

<p></p>
<div class="highlight"><pre class="highlight plaintext"><code>
###**4. [`appspec.yml`](https://github.com/vumdao/codedeploy/blob/master/cicd/codedeploy/appspec.yml)**
</code></pre></div>
<p></p>

<p>version: 0.0<br>
os: linux<br>
hooks:<br>
  BeforeInstall:<br>
    - location: scripts/install.sh<br>
      timeout: 300<br>
      runas: root</p>

<p></p>
<div class="highlight"><pre class="highlight plaintext"><code>
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Ref: https://github.com/vumdao/codedeploy
</code></pre></div>