val run_sh : ('a, unit, string, Dockerfile.t) Stdlib.format4 -> 'arun_sh fmt will execute /bin/sh -c "fmt" after quoting fmt.
val run_as_user : string -> ('a, unit, string, Dockerfile.t) Stdlib.format4 -> 'arun_as_user user fmt will execute sudo -u user /bin/sh -c "fmt" after quoting fmt.
module RPM : sig ... endRules for RPM-based distributions
module Apt : sig ... endRules for Apt-based distributions
module Apk : sig ... endRules for Apk-based distributions such as Alpine Linux
module Zypper : sig ... endRules for Zypper-based distributions such as OpenSUSE
module Git : sig ... endRules for Git