Section 1: Introduction to DevOps

Lesson 1: Understanding DevOps

DevOps is a set of practices that aims to automate and improve the collaboration between software development and IT operations teams. It focuses on shortening the system development life cycle and delivering high-quality software continuously.

# Sample DevOps Practice

# Automating Build Process

# Build Script (e.g., using Jenkins or GitLab CI)

build:

  script:

    - npm install

    - npm run build

Lesson 2: Key Principles of Collaboration

DevOps emphasizes principles that foster collaboration and communication among teams. Key principles include automation, continuous feedback, and shared responsibility.

# Sample DevOps Principle

# Continuous Feedback

# Automated Testing (e.g., using Jest for JavaScript)

test:

  script:

    - npm test

Section 2: DevOps Lifecycle

Lesson 3: DevOps Lifecycle Stages

DevOps follows a lifecycle that includes planning, coding, building, testing, releasing, deploying, operating, and monitoring. Each stage contributes to the continuous improvement of software delivery.

# Sample DevOps Lifecycle

# Continuous Integration (CI) Pipeline

# Jenkinsfile (Declarative Pipeline)

pipeline {

    agent any

    stages {

        stage('Build') {

            steps {

                sh 'npm install'

                sh 'npm run build'

            }

        }

        stage('Test') {

            steps {

                sh 'npm test'

            }

        }

    }

}

Lesson 4: CI/CD Concepts

Continuous Integration (CI), Continuous Delivery (CD), and Continuous Deployment are core concepts in the DevOps lifecycle. CI ensures code integration, while CD focuses on automating the delivery and deployment processes.

# Sample DevOps CI/CD

# Continuous Deployment Script

# Deployment Script (e.g., Ansible)

deploy:

  script:

    - ansible-playbook deploy.yml

This concludes the introduction to DevOps and its lifecycle. Stay tuned for more advanced DevOps concepts and practices.