Log in to a container registry. Note: The default authfile path on Linux is
$XDG_RUNTIME_DIR/containers/auth.json, which is usually stored in atmpfs(in RAM). More information: https://docs.podman.io/en/latest/markdown/podman-login.1.html.
podman login {{registry.example.org}}
podman login --authfile $HOME/.config/containers/auth.json {{registry.example.org}}
podman login --tls-verify=false {{registry.example.org}}