AWS DevOps for Node.js

AWS CodeBuild and AWS CodeDeploy are services that compile your source code, run tests, and then deploy your application to AWS services. Below are sample configuration files that demonstrate how you can set up CodeBuild and CodeDeploy for a Node.js application.

AWS CodeBuild

First, you’ll want to define a buildspec.yml file to describe the build process.

version: 0.2

phases:
  install:
    commands:
      - echo Installing source NPM dependencies...
      - npm install
  pre_build:
    commands:
      - echo Linting the code...
      - npm run lint
  build:
    commands:
      - echo Build started on `date`
      - echo Compiling the Node.js code...
      - npm run build
  post_build:
    commands:
      - echo Build completed on `date`

artifacts:
  files:
    - '**/*'
  discard-paths: yes
  base-directory: 'build'Code language: PHP (php)

AWS CodeDeploy

Create an appspec.yml file for AWS CodeDeploy configuration:

version: 0.0
os: linux
files:
  - source: /
    destination: /var/www/my-nodejs-app
hooks:
  ApplicationStop:
    - location: scripts/stop_server
      timeout: 300
      runas: root
  BeforeInstall:
    - location: scripts/before_install
      timeout: 300
      runas: root
  ApplicationStart:
    - location: scripts/start_server
      timeout: 300
      runas: rootCode language: PHP (php)

Scripts

You can also include some shell scripts that CodeDeploy will use during the deployment lifecycle. Place them in a scripts/ directory.

• stop_server

#!/bin/bash
systemctl stop my-nodejs-appCode language: JavaScript (javascript)

• before_install

#!/bin/bash
cd /var/www/my-nodejs-app
npm installCode language: JavaScript (javascript)

• start_server

#!/bin/bash
systemctl start my-nodejs-appCode language: JavaScript (javascript)

Make sure to give these scripts the necessary permissions, perhaps by running chmod +x scripts/*.

Note: This is a basic example and may not cover all your needs. The scripts may need to be adapted depending on how you’ve set up your server, and you may need additional setup steps like database migrations, etc.