Brent Baude f79d56bd13 Disconnect backends ...

Ideally, the atomic CLI should be able to operate independently
of the backends it supports.  For example, if dockerd is inactive,
the ostree backend and atomic cli should still work.

This requires some tweaking to the backendutils code and the work
flow.  We also need to specifically know if the user passes
--storage so that we treat that as an explicit override.  The work
flow is now roughly:

* a default storage can be defined in atomic.conf (was always this way)
* if not defined, defaults to docker.
* if --storage is passed, treat explictly and fail if cannot execute
* if no --storage is specified, use default.  if default is not available, move
 onto the next backend.

2017-01-25 19:07:20 -06:00

..

atomic

Disconnect backends

2017-01-25 19:07:20 -06:00