Which Docker command allows you to build an image from a Dockerfile?

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The command that allows you to build an image from a Dockerfile is indeed "docker build." This command reads the Dockerfile in the specified context and constructs a Docker image according to the instructions outlined in the Dockerfile. By running this command, users can customize the configuration and content of the image, which can then be used to create containers.

Using "docker build" is essential for developing applications, as it automates the image creation process based on the defined steps in the Dockerfile. The command can also accept various flags and options to specify things like tags for the image or build arguments for further customization.

Other options like "docker create" are used for creating containers from images, but do not build images themselves. "docker compile" is not a valid Docker command, and "docker image create" does not exist as a command in Docker's CLI. Therefore, "docker build" is the definitive command used for building Docker images from a Dockerfile.

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