There are cases when an issue has been fixed upstream in a
dependency but not yet released and it is desirable to install
that version in a built image. pbr does not support such urls
in requirements files because releasing software that depends
on unreleased software is quite dangerous.
Update assemble and install-from-bindep to install -r requirements.txt
before installing the actual software so that image builds with
such requirements lines will work.
Change-Id: Ie17a66bdc4ea0609ce4e66051f659cbd829fdd5d
This is a builder image intended to make it easy to build
images for projects that use pbr and bindep.
Also, build a python-base image for use with python-builder
pbrx installed dumb-init in a base image and used it as an
entrypoint for the image. This is a good pattern that we should
continue. Make a python-base image that can be used in the FROM
line of consuming final images.
Change-Id: I8da39e680e9c5ca0d8f603a2645e83fc3be87a8b
