Right now dib-python works by trying to find any python on a system in
an order of precedence. A much better way is if we are explicit about
the python we intend to be there which will allow us to make better
decisions in other elements (such as allowing for package-installs to
take into account DIB_PYTHON_VERSION) as well as allow for users to
specify a preferred python version.
Co-Authored-By: Adam Harwell <flux.adam@gmail.com>
Change-Id: Ie609de51cc5fcde701296c9474e315981d9778a2
The undercloud actually has dib run twice on it - once to create
the instack image, and again when we run instack itself. The
first run creates the dib-python symlink, and the second blows up
because the link already exists. Force the link creation so the
script is idempotent.
Change-Id: I78f9e6f5afcf8ebe6d7911a7a434525ba7c737cf
Use dib-python to run package-installs using the provided python
version. Automatically detect the python version for our
package-installs-squash since that runs outside the chroot.
Change-Id: I926022bcf8cbcd81b051026ffd5d6477650045ad
Creating an element which we can use in #! lines to refer to either
python2 or python3 depending on what it available.
Change-Id: Ic47e18ad21c33ab9f0d11c04260a33725aeee814
