Jim Mussared c7d5112771 idf-docker-image.rst: Run with current user ID instead of root.
Rather than running the command inside the container as root, which will
mean that any build artifacts created will be owned by root on the host,
run the command as the current user.

This requires setting a temporary home directory as idf.py will try to
access e.g. ~/.cache, so just use /tmp inside the container which is
ephemeral anyway.

This also allows the command to use `git`. without setting the user ID,
`docker run ... git status` will fail with
    fatal: detected dubious ownership in repository at '/project'

Also added the missing explanation for `-w /project`.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2023-08-01 11:27:34 +10:00
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