Default Gateway is set in the wrong file in openSUSE

This bug was originally filed in Launchpad as [LP: #1805644](https://bugs.launchpad.net/cloud-init/+bug/1805644)

Launchpad details

affected_projects = []

assignee = None

assignee_name = None

date_closed = None

date_created = 2018-11-28T14:58:07.988028+00:00

date_fix_committed = None

date_fix_released = None

id = 1805644

importance = medium

is_complete = False

lp_url = https://bugs.launchpad.net/cloud-init/+bug/1805644

milestone = None

owner = zurdos

owner_name = Zurdo

private = False

status = confirmed

submitter = zurdos

submitter_name = Zurdo

tags = []

duplicates = []

_Launchpad user **Zurdo(zurdos)** wrote on 2018-11-28T14:58:07.988028+00:00_

openSUSE's network renderer sets the gateway in `/etc/sysconfig/network/ifcfg-eth0` instead of `/etc/sysconfig/network/routes`.

I'm using openSUSE Leap 15.0, OpenStack build downloaded from [here](https://download.opensuse.org/repositories/Cloud:/Images:/Leap_15.0/images/). The included version of cloud-init is 18.4.

Data source is `nocloud`, using the image generated by Proxmox. Attached.