Master AWS Certified Developer – Associate (DVA-C02) Exam/

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AWS CodeBuild and CodeDeploy: CI/CD Fundamentals

AWS CodeBuild and CodeDeploy: CI/CD Fundamentals

Explore the core CI/CD services offered by AWS, and understand how they streamline application delivery at scale.

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AWS provides a suite of tools designed to support CI/CD processes for cloud applications. Among these, AWS CodeBuild and AWS CodeDeploy are in-scope for the AWS Certified Developer – Associate (DVA-C02) exam. These services help automate the build and deployment stages of the application life cycle, enabling developers to deliver software reliably and efficiently.

AWS CodeBuild: Automating code compilation and testing

AWS CodeBuild is a fully managed build service that compiles source code, runs unit tests, and produces deployable artifacts. It eliminates the need for developers to manage their own build infrastructure.

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To understand the working of code build, let’s first discuss its core components:

Buildspec

The buildspec is a YAML file named buildspec.yml that is included in the root of the source code. It contains the sequence of commands and related settings that CodeBuild uses to run the build. It is broken down into phases, including:

  • install phase sets up dependencies.

  • build phase runs the application build.

  • artifacts declare what to output for the next stage.

The code snippet shows an example of buildspec.yml:

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version: 0.2
phases:
  install:
    commands:
      - echo Installing dependencies...
      - npm install
  build:
    commands:
      - echo Building project...
      - npm run build
artifacts:
  files:
    - '**/*'

Build environment

The build environment is the Docker container that CodeBuild provisions to run the build. It represents a combination of an operating system, a programming language runtime such as Node.js, Java, or Python, and the necessary tools like the AWS CLI and Docker.

Build project

The build project is the central configuration for a build. It acts as a blueprint for ...