[2.1] Support configuring components and disabling deb-src

This bug was originally filed in Launchpad as [LP: #1664384](https://bugs.launchpad.net/cloud-init/+bug/1664384)

Launchpad details

affected_projects = ['maas']

assignee = None

assignee_name = None

date_closed = None

date_created = 2017-02-13T22:09:05.653845+00:00

date_fix_committed = None

date_fix_released = None

id = 1664384

importance = undecided

is_complete = False

lp_url = https://bugs.launchpad.net/cloud-init/+bug/1664384

milestone = None

owner = andreserl

owner_name = Andres Rodriguez

private = False

status = triaged

submitter = andreserl

submitter_name = Andres Rodriguez

tags = []

duplicates = []

_Launchpad user **Andres Rodriguez(andreserl)** wrote on 2017-02-13T22:09:05.653845+00:00_

MAAS supports adding additional repositories but it does not support disabling components or sources:

Components are [main, universe, multiverse, restricted]
deb source packages = deb-src