Advanced CI/CD Techniques

Continuous Integration (CI) and Continuous Deployment (CD) are crucial practices in modern software development. This lesson explores advanced techniques that optimize these processes, enhancing software quality and delivery speed.

2.1 CI/CD Pipeline

A CI/CD pipeline automates the software delivery process, from code integration to deployment. Key stages include:

• Source Code Management
• Build Automation
• Testing Automation
• Deployment Automation
• Monitoring

2.2 Infrastructure as Code (IaC)

IaC allows you to manage and provision infrastructure through code, enabling reproducibility and automation.

2.3 Continuous Testing

Continuous testing integrates automated tests into the CI/CD pipeline to ensure code quality at every stage.

• Use feature flags to toggle features in production without deploying new code.
• Implement automated rollback strategies for failed deployments.
• Conduct regular performance testing alongside functional testing.
• Maintain a single source of truth for your CI/CD pipeline configuration.
• Monitor the health of your applications and infrastructure continuously.

4.1 Sample CI/CD Pipeline Configuration

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                sh 'npm install'
            }
        }
        stage('Test') {
            steps {
                sh 'npm test'
            }
        }
        stage('Deploy') {
            steps {
                sh 'npm run deploy'
            }
        }
    }
}

provider "aws" {
    region = "us-west-2"
}

resource "aws_s3_bucket" "my_bucket" {
    bucket = "my-unique-bucket-name"
    acl    = "private"
}