buildah binary package in Ubuntu Lunar riscv64

 The Buildah package provides a command line tool that can be used to
   - create a working container, either from scratch or using an image as a
     starting point
   - create an image, either from a working container or via the
     instructions in a Dockerfile
   - images can be built in either the OCI image format or the traditional
     upstream docker image format
   - mount a working container's root filesystem for manipulation
   - unmount a working container's root filesystem
   - use the updated contents of a container's root filesystem as a
     filesystem layer to create a new image
   - delete a working container or an image
   - rename a local container
 .
 This package contains the buildah command-line utility and provides an
 interface similar to the 'docker' command.

Source package