GitLab CI/CD: The Complete Guide (2026 Edition)

GitLab CI: The Complete Guide is an example-driven manual built specifically for engineers who need to ship production-grade code today. Whether you are migrating from Jenkins or building a pipeline from scratch, this 2026 edition covers the latest GitLab features, including OIDC authentication and Directed Acyclic Graphs (DAG).

What’s Inside:

• Core Architecture: Master the 7 building blocks: Pipelines, Stages, Jobs, Scripts, Runners, Artifacts, and Environments.
• Advanced Logic: Move beyond only/except with modern rules and workflow configurations.
• Speed Optimization: Learn professional caching strategies and use DAG (needs) to slash your build times.
• Security First: Implement SAST, DAST, and Secret Detection using built-in GitLab templates.
• Real-World Projects: Ready-to-use templates for Docker builds, Terraform deployments, and multi-stage production pipelines.

🛠 Real-World Pipelines Included:

You get production-ready code examples for:

• Docker: Build, push to GitLab Registry, and scan images for vulnerabilities.
• Terraform: Run plans on Merge Requests and apply on merge natively.
• Full Production Workflow: A multi-stage pipeline including linting, unit tests, staging, E2E tests, and manual production gates.