Phase 16 · Docker & Containers
TopicsContainer 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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