The permissions rules for /tmp say that only the process
that created a file can delete it, this creates issues
rerunning our gather script because we need to overwrite
the temporary files as a different process. I'm at a loss
as to why we didn't see this before though, maybe the permissions
on /tmp in the images we ship have changed recently.
Regardless instead of needlessly slapping become: true on every
task this patch adds a handler to the common role to go and clean
up files before the ansible process exits.
Change-Id: I9e8c1a8b030da8319941dea6eb129fa59e6c2d48
8d1f8e4eda