On Debian network configuration can be done via /etc/network/interfaces.
It can accept a statement to load additional files, which varied in
history:
Wheezy only supports 'source' (see b822581)
Jessie supports 'source-directory' and comes with the statement by
default.
However since 754dd05 we inconditionally inject 'source', thus on Jessie
the configuration ends up with:
source-directory /etc/network/interfaces.d/*
source /etc/network/interfaces.d/*
When networking is started, 'ifup -a' parses the list of interfaces
twice. When configured with dhcp, that causes two dhclient to spawn
which might conflict with each other.
Inject the source statement only if there is neither a source or
source-directory with the same path.
Change-Id: Iefa9c9584f676e50481c621b4111eded3125a50b
interfaces are not configured at all because specific interface files
are created but not sourced. This will result in the VMs running with
the loopback interface only
This is a regression, the problem was already fixed in the past, see commit
b822581d88
Change-Id: I846642772ab582d7567e5182c860cfa0fe882a15
debootstrap is not debian or ubuntu specific. We can make a debootstrap
element that knows how to do all of the things, and then a
debian-minimal and ubuntu-minimal image that use it. Finally, make
the debian element simply be a collection of the extra things we do to
make it look like a cloud-init based cloud image.
Change-Id: Iaf46c8e61bf1cac9a096cbfd75d6d6a9111b701e
