Add per boot network configuration for OpenStack datasource

This bug was originally filed in Launchpad as [LP: #1811458](https://bugs.launchpad.net/cloud-init/+bug/1811458)

Launchpad details

affected_projects = []

assignee = None

assignee_name = None

date_closed = None

date_created = 2019-01-11T17:56:34.530514+00:00

date_fix_committed = None

date_fix_released = None

id = 1811458

importance = medium

is_complete = False

lp_url = https://bugs.launchpad.net/cloud-init/+bug/1811458

milestone = None

owner = nniehoff

owner_name = Nick Niehoff

private = False

status = triaged

submitter = nniehoff

submitter_name = Nick Niehoff

tags = []

duplicates = []

_Launchpad user **Nick Niehoff(nniehoff)** wrote on 2019-01-11T17:56:34.530514+00:00_

The OpenStack datasource should support the capability of regenerating network configuration at boot. With Bionic, if a primary interface is removed from an instance and a new interface is added, the instance will fail to reconfigure the new interface unless it is assigned the same MAC address.