CI/CD Explained

Plain-English answers to "what is…" questions about CI/CD.

Beginner-friendly explainer articles on continuous integration and delivery: what CI/CD is, how pipelines, runners, and GitHub Actions work, and the concepts behind fast, reliable, cost-efficient automation.

Reliability explained

Flaky tests, transient failures, self-healing CI.

What is a rate limit error?A rate limit error means a service is rejecting requests because you sent too many too fast. Learn why CI hit…

Core concepts

Containers, caching, artifacts, OIDC, and more.

What is a post-deployment check?A post-deployment check verifies that a release is healthy after it goes live, catching bad deploys quickly.… What is a shebang line?A shebang line is the first line of a script that tells the OS which interpreter to run it with. Learn how sh… What is a tmpfs?A tmpfs is a filesystem that lives in memory rather than on disk. Learn how tmpfs works, its trade-offs, and…

Explore other topics

GitHub ActionsWorkflow, runner, and YAML errors - diagnosed and fixed. Node.js & npmnpm, yarn, and pnpm failures in CI - solved. DockerBuild, run, compose, and registry errors - explained. Pythonpip, poetry, venv, and pytest failures - fixed. Java & JVMMaven, Gradle, and JVM failures in CI - resolved. GoGo build, module, and test failures - diagnosed.