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Kir Kolyshkin
72f6e50c62
Explain that variable value is optional and is taken from environment if not set. Clarify the meaning of ARG, and mention that ENV overrides ARG of the same name. Move example to the end, and refer to the Dockerfile and buildx docs for more details (replacing the obsolete link). Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Docker Documentation
This directory contains scripts for generating the man pages. Many of the man
pages are generated directly from the spf13/cobra Command definition. Some
legacy pages are still generated from the markdown files in this directory.
Do not edit the man pages in the man1 directory. Instead, update the
Cobra command or amend the Markdown files for legacy pages.
Generate the man pages
From within the project root directory run:
$ make -f docker.Makefile manpages