CI/CD

GitHub Actions

GitHub Actions is a very popular automation platform for modern software delivery. It is tightly integrated with GitHub repositories and supports workflows for testing, linting, artifact creation, releases, and deployments.

CI/CDGitHubAutomation

Key Concepts

Workflows define automation triggered by repository events.

Jobs contain steps executed on runners.

Actions are reusable automation building blocks.

Secrets and environment variables support secure automation.

Common Interview Questions

What is GitHub Actions?

What is the difference between jobs and steps?

How are secrets handled in CI/CD pipelines?

Use Case

Use GitHub Actions to automate builds, tests, releases, and deployments directly from repositories.

Common Use Cases

Running tests on pull requests.

Building and pushing Docker images.

Deploying applications to cloud platforms.

Automating release workflows from GitHub repositories.

Pros

Built directly into GitHub with great developer experience.

Easy to start and powerful enough for serious CI/CD.

Huge marketplace of reusable actions.

Cons

Complex workflows can become hard to maintain.

Heavy enterprise needs may require stricter execution control.

Self-hosted runners add operational complexity.