What is a Dockerfile used for in Docker containerization?
- Configuring network settings
- Defining the instructions to build a Docker image
- Managing multiple containers as a single application
- Storing runtime data of a container
A Dockerfile in Docker containerization is used to define the instructions needed to build a Docker image. It contains a set of commands that describe the base image, application code, dependencies, and configuration, allowing for consistent and reproducible image builds.
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