How to Implement a DevOps Pipeline from Scratch

Understanding the DevOps Pipeline

Modern software delivery requires automated infrastructure and repeatable deployment patterns. This guide will show you how to implement a full CI/CD pipeline that supports source control, automated testing, and production deployment.

# .gitlab-ci.yml
stages:
  - build
  - deploy

build:
  script:
    - docker build -t devops-pipeline .
    - docker image ls

deploy_prod:
  stage: deploy
  script:
    - docker run devops-pipeline

Initial Setup Requirements

• ✅ A Git version control system
• ✅ Docker installed (19.3+ recommended)
• ✅ Basic knowledge of terminal commands

Step-by-Step Implementation

1. Project Setup

   Initialize your project with npx create-gitlab-pipeline -y

2. Create Pipeline Config

   Use the GitLab UI to generate the standard .gitlab-ci.yml template

3. Define Stages

   stages:
     - build
     - deployment
     - testing
     - production

Infrastructure as Code

Infrastructure configuration should be versioned with your codebase. This allows for:

• Easier rollback capability
• Automated environment provisioning
• Consistent deployments

Pipeline Validation

Run your full pipeline with:

git push origin main