podman/docs/source/markdown/options/runtime-flag.md

####> This option file is used in: ####> podman build, farm build ####> If file is edited, make sure the changes ####> are applicable to all of those.

--runtime-flag=flag

Adds global flags for the container runtime. To list the supported flags, please consult the manpages of the selected container runtime.

Note: Do not pass the leading -- to the flag. To pass the runc flag --log-format json to buildah build, the option given is --runtime-flag log-format=json.