podman/docs/source/markdown/options/authfile.md

####> This option file is used in: ####> podman auto update, build, container runlabel, create, image sign, kube play, login, logout, manifest add, manifest push, pull, push, run, search ####> If file is edited, make sure the changes ####> are applicable to all of those.

--authfile=path

Path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json, which is set using podman login. If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using docker login.

Note: There is also the option to override the default path of the authentication file by setting the REGISTRY_AUTH_FILE environment variable. This can be done with export REGISTRY_AUTH_FILE=path.