GitHub Actions vs GitLab CI
Compare two of the most popular CI/CD platforms for automating Git workflows.
Ecosystem and Integration
GitHub Actions is deeply integrated into the GitHub ecosystem and utilizes a massive marketplace of community-built actions. GitLab CI is native to GitLab and relies heavily on custom Docker images for execution.
Syntax and Structure
GitHub Actions uses workflows defined by "on" triggers, jobs, and steps. GitLab CI uses a single .gitlab-ci.yml file structured around predefined stages (build, test, deploy) and jobs that run within those stages.
Reusability
GitHub Actions emphasizes reusability via "uses: external/action". GitLab CI achieves reusability through the "include:" keyword to import YAML templates and "extends" for job inheritance.