DevOps / Github Interview questions

What is GitHub Codespaces?

Codespaces provisions a full, cloud-hosted development environment for a repository, pre-configured with the tools, extensions, and dependencies a project needs, launched directly from the GitHub web UI or VS Code in a couple of clicks.

Configuration lives in a .devcontainer/devcontainer.json file in the repository, which defines the base image, installed tools, and any setup commands, so every contributor gets an identical environment instead of relying on manually maintained local setup instructions. It's especially useful for onboarding new contributors quickly or working from a machine that isn't set up for a project at all.

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GitHub Codespaces configuration is typically defined in: .devcontainer/devcontainer.json

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codespaces.yml at the repo root

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.github/codespaces/setup.sh only

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A key benefit of Codespaces is: Every contributor gets an identical, pre-configured environment

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It removes the need for a repository entirely

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It replaces GitHub Actions

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