GitLab CI/CD Pipeline Explained | DevOps Class 20 | All-in-One DevSecOps Platform

Description

Welcome to FusionPact DevOps Daily Classes – Class 20. In this session, we explain how GitLab CI/CD enables teams to automatically build, test, secure, and deploy modern applications using a single integrated DevSecOps platform. GitLab replaces the need for multiple standalone tools such as Jenkins, SonarQube, and separate deployment scripts by providing one unified workflow and one source of truth for the entire DevOps lifecycle. 🔍 What You Will Learn in DevOps Class 20 What GitLab is and why it is widely used Difference between Jenkins-based pipelines and GitLab CI/CD How GitLab combines CI, security, container registry, and deployment Understanding GitLab architecture components What instrumentation and pipeline as code mean How review apps help test changes before merge End-to-end automated DevSecOps workflow Real-time industry examples using microservices and Kubernetes 🧠 Overview of GitLab CI/CD What Is GitLab? GitLab is an all-in-one DevOps platform. Instead of using: Jenkins for CI Sonar for code quality External security scanners Manual deployment scripts GitLab integrates all these capabilities into a single system where security is built directly into the pipeline. It works well for: Startups Growing organizations Large enterprise-grade infrastructures 🏗️ GitLab Architecture Components GitLab CI/CD mainly includes: GitLab Server Brain of the system Manages code, users, permissions, and pipelines GitLab Runners Workers that execute jobs Perform build, test, scan, and deployment Pipeline as Code Defined using .gitlab-ci.yml Describes sequential DevSecOps stages Container Registry Stores Docker images and build artifacts Deployment Targets Kubernetes Cloud platforms On-premise servers 🔄 GitLab CI/CD Workflow Explained Typical workflow: Developer pushes code GitLab pipeline gets triggered automatically Build and tests run Security scans execute Review app creates temporary test environment Code is reviewed and approved Merge to main branch GitLab automatically deploys to production ⚙️ Problems Solved by GitLab CI/CD GitLab provides: Fully automated pipeline across lifecycle One unified DevSecOps platform Early detection of security vulnerabilities Centralized artifact and image storage End-to-end visibility from code to production Reduced complexity by eliminating tool sprawl 🛒 Real-Time Example Assume an e-commerce website: Developer commits code Pipeline runs automatically Quality checks, tests, and security scans execute Images and artifacts are stored App is deployed to Kubernetes or AWS or GCP All within minutes without manual intervention. 🚀 Key Benefits Speed and faster releases Cost efficiency Unified observability and reporting Security-first approach Scalable DevSecOps automation Better collaboration 📌 Final Takeaway By adopting GitLab CI/CD, organizations can: ✔ Ship software faster ✔ Deploy securely ✔ Scale reliably ✔ Deliver business impact ✔ Avoid vendor lock-in ✔ Maintain high availability 🔔 Subscribe for FusionPact DevOps Daily Classes 🌐 www.fusionpact.com FusionPact Skills • Trust • Impact