Infra Pipelines with CDK

Introduction

The AWS Cloud Development Kit (CDK) allows developers to define cloud infrastructure using a programming language of their choice. This lesson focuses on creating infrastructure pipelines specifically for data engineering workflows on AWS.

Key Concepts

Step-by-Step Process

Building an infra pipeline with CDK involves several steps:

1. Set up your development environment.
2. Create a new CDK project.
3. Define the pipeline stack.
4. Add stages and actions to the pipeline.
5. Deploy the pipeline.

Step 1: Set up Your Development Environment

Ensure you have Node.js installed. You can install the AWS CDK globally using npm:

npm install -g aws-cdk

Step 2: Create a New CDK Project

Create a new directory for your project and initialize it:

mkdir my-infra-pipeline
cd my-infra-pipeline
cdk init app --language=typescript

Step 3: Define the Pipeline Stack

In your CDK stack file, define the resources you need:

import * as cdk from 'aws-cdk-lib';
import * as codepipeline from 'aws-cdk-lib/aws-codepipeline';
import * as codepipeline_actions from 'aws-cdk-lib/aws-codepipeline-actions';

export class MyInfraPipelineStack extends cdk.Stack {
    constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
        super(scope, id, props);

        const sourceOutput = new codepipeline.Artifact();
        const sourceAction = new codepipeline_actions.GitHubSourceAction({
            actionName: 'GitHub',
            output: sourceOutput,
            oauthToken: cdk.SecretValue.secretsManager('my-github-token'),
            owner: 'my-github-username',
            repo: 'my-repo',
            branch: 'main',
        });

        const pipeline = new codepipeline.Pipeline(this, 'MyPipeline', {
            pipelineName: 'MyPipeline',
            stages: [
                {
                    stageName: 'Source',
                    actions: [sourceAction],
                },
                // Add more stages here
            ],
        });
    }
}

Step 4: Add Stages and Actions to the Pipeline

Continue to build your pipeline by adding build, test, and deploy stages:

const buildAction = new codepipeline_actions.CodeBuildAction({
    actionName: 'Build',
    input: sourceOutput,
    project: myBuildProject,
});

pipeline.addStage({
    stageName: 'Build',
    actions: [buildAction],
});

Step 5: Deploy the Pipeline

Deploy your pipeline using:

cdk deploy

Best Practices

• Use version control for your CDK code.
• Keep infrastructure code modular and organized.
• Automate testing for your pipeline.
• Use environment variables for sensitive data.
• Document your architecture and pipeline steps.

FAQ