Missing flags in man-page for docker build

[atombrella]

Description

The man-page for docker build is incomplete. The --progress flag is not there. Perhaps there are more flags missing; I haven't made an extensive comparison. I recently needed to figure something, and found --progress in a Reddit post, however not in the man-page. I occasionally use the man-pages for docker, although they don't appear to be updated frequently (last commit was +2 years ago).

https://docs.docker.com/engine/reference/commandline/build/ Navigate here, and search for --progress. It's not there. Neither in man docker-build. It's not a build-kit specific flag.

[joshriverscambia2019]

I suspect something changed in the relationship with buildx. --progress comes through in docker image build --help but only if buildx is setup on the CLI. It looks like some behavior changed recently, as I have some broken builds, but things seem to be coming back with the install of the buildx plugin.