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Container Image Registry - CI/CD Glossary Definition

A container image registry is a server that stores and distributes container images, organized by repository and tag. Examples include Docker Hub, GitHub Container Registry (ghcr.io), Amazon ECR, and Google Artifact Registry.

How it works

Clients push built images to the registry and pull them by name and tag (for example ghcr.io/org/app:v1.2). A CI pipeline typically builds an image, pushes it, then a deploy step pulls it.

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