Container registries: public vs private
WHAT IT TESTS: image distribution and governance. OUTLINE: a registry stores and serves versioned image layers by digest; public registries are open and rate-limited, private ones add access control, scanning, signing and network isolation.
WHAT IT TESTS: how images are stored and the governance gap between public and private. ANSWER OUTLINE: a container registry is a service that stores and distributes content-addressed image layers and manifests, letting clients push and pull by tag or digest. Public registries like Docker Hub are openly accessible, subject to rate limits and supply-chain risk. Private registries like ECR or Harbor add authentication, fine-grained access control, vulnerability scanning, signing, replication and network isolation.
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- #containers
- #registry
- #docker-hub
- #ecr
- #supply-chain
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