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Build CI pipelines for linting, tests, image builds, security checks, and deployment gates.
These are the tools you use in this track and what each tool does in production workflows.
CI/CD
GitHub Actions
Event-driven CI workflows integrated with GitHub repositories.
Containers and Orchestration
Docker
Builds immutable container images for consistent runtime behavior.
For each tool area: what it is, types, when to use, why it matters, and how to apply it.
CI/CD Pipelines
What: CI/CD pipelines automate build, test, security checks, and deployment.
Why: Automation reduces release risk and shortens time from commit to production.
Types
When to use
How to use
Docker
What: Docker packages applications into portable, immutable container images.
Why: Containers make deployments consistent and easier to scale.
Types
When to use
How to use
What is the main purpose of a CI pipeline?
CI validates changes early by automated build/test.
Which Git event commonly triggers a CI workflow?
CI systems are typically triggered by SCM events.
In CI/CD, what is artifact versioning used for?
Versioned artifacts allow deterministic releases and rollback.
What does a failed unit test in CI usually indicate?
Failing tests signal potential behavioral breakage.
Why use pipeline stages like build, test, and deploy?
Stages make release flow explicit with validation points.
What is blue-green deployment?
Blue-green minimizes downtime and enables quick rollback.
What is a canary release?
Canary reduces risk by gradual exposure.
What is a common CI/CD secret management best practice?
Secrets should be encrypted and never hardcoded.
What does rollback mean in deployment?
Rollback restores service after bad release.
What is the role of integration tests in pipeline?
Integration tests check component collaboration.
Why is pipeline as code useful?
Pipeline definitions in code improve reproducibility.
What does CD commonly stand for in DevOps?
CD extends CI toward automated release processes.
What is a quality gate?
Quality gates prevent unsafe promotions.
Why include static analysis in CI?
Static analysis finds lint/security problems quickly.
What is trunk-based development’s CI advantage?
Frequent integration keeps CI healthy.
What is an immutable artifact?
Immutable artifacts improve repeatability and trust.
Why run smoke tests after deployment?
Smoke tests confirm basic service health post-deploy.
What is deployment freeze?
Freeze windows reduce risk during critical events.
What is a pipeline retry useful for?
Retries can handle flaky network/infrastructure issues.
What helps make CI pipelines faster?
Caching and parallelism reduce execution time.