Interview Q&A / Docker & Kubernetes
Docker & Kubernetes interview questions
Images, containers, Dockerfiles, pods and deployments, from first principles.
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- What is the difference between an image tag and an image digest?
A tag like 1.27 is a movable label that can be re-pointed to a different image. A digest (sha256:...) is a hash of the image contents, so it always identifies exactly one image.
IntermediateQuick answer1 min read