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Docker Medium technical

Q1. Explain Docker layers and how caching works.

A Docker image is a stack of read-only layers. Each Dockerfile instruction creates a layer, and layers are shared between images and cached. Build cache: - Docker checks ...

2 Answer

Docker Medium technical

Q2. What is a multi-stage build and why use it?

A multi-stage build uses several FROM stages in one Dockerfile. You can compile in an early stage and copy only the artefacts into a minimal final stage. ```dockerfile FR...

1 Answer

Docker Easy technical

Q3. What is the difference between CMD and ENTRYPOINT?

Both define what runs when a container starts, but they behave differently. - ENTRYPOINT sets the executable. It is hard to override and defines the container's purpose. ...

2 Answer