Comment 0 for bug 1673700

Generate an history (a log file into a directory like ~/.tripleo/history ) for tracking all the overcloud deploy command launch by the user, with a timestamp.
The history file for the deploy command would be useful to track what previous command has been run, which environment files has been passed and which templates has been.
In some context, like update or upgrade, where sometimes customers upgrade their cloud from several major releases, will allow us to debug more easily and understand more quickly what kind of argument has been used by the users.
Another context would be for the automation and CI purpose, where with a such log file, we would be able to discover automatically the updta/upgrade/scale overcloud command.

The review attached only track the templates and the environment files, but we think of adding more information there..

https://review.openstack.org/#/c/446617/