This commit conditionally allows the os_swift role to
install build and deploy within a venv. This is the new
default behavior of the role however the functionality
can be disabled.
In this PR, like all of the other venv related PRs, the
`is_metal` flag was removed from the role however unlike
some of the other PRs this removal required moving some
of the `is_metal` logic out of the role and into the
play. This was done for consistency as well as making
the role more standalone. The only thing that the role
should care about, in terms of installation, is whether
or not to install in a venv.
Change-Id: I6f5b883a853611659567bd12e8bcf572189854b7
Implements: blueprint enable-venv-support-within-the-roles
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
b08b2ea889