3e51709307
Currently if no Dockerfile is specified or found, we exit later with an obscure error. Check this after the element search; if we still don't have something to build then we can't continue. Change-Id: Ifb17a0995fab0ccfe7ee08363676c1fa57e37592
containerfile
Base element for creating images from container files (aka Dockerfiles).
Usually this element will be called via a more specific distro
element which provides an environment for building a full image. This
element will search active elements for a container file located in
containerfiles/${DIB_RELEASE}.
Alternatively, to use this element directly supply the path to a
container file in the environment variable
DIB_CONTAINERFILE_DOCKERFILE.
Set DIB_CONTAINERFILE_RUNTIME to docker to
use Docker for building images (default is podman).
Set DIB_CONTAINERFILE_RUNTIME_ROOT to 1 to
run the runtime (Docker or podman, per above) as
root.
Set DIB_CONTAINERFILE_NETWORK_DRIVER to a network driver
of your choice (e.g. host) to use it instead of the default bridge
during build.