Phase 16 · Docker & Containers

Topics

Container Registries

Part of the Backend Developer Roadmap.

Summary

Remote repositories for storing and distributing Docker images — Docker Hub is the default public one; most companies also use a private registry (ECR, GCR, GitHub Container Registry).

How to Learn This

  • 1Push an image you've built to Docker Hub.
  • 2Learn how CI/CD pipelines typically build, tag and push images to a registry automatically.
  • 3Understand image tagging conventions (`latest` vs versioned tags) and why relying on `latest` in production is risky.
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