Comment 1 for bug 1832306

Found the issue that the gnocchi deb package on Ubuntu will install gnocchi-api & gnocchi-upgrade which using python3 as python execution application.
To fix this, need to build the image which installed require python packages in Python3 method. But it caused another issue from apache2 that port 8041 already in use after launch gnocchi-api and keep restarting container.

So there're two approaches to fix:
1. Build the image with require packages in python3, then check why default port has already in use.
2. Change gnocchi binary to use python2 or virtual env.