core-1505-networkd-vs-ifupdown
ifupdown is a frequent pain point for cloud integration, due to its lack of apis and its idiosyncratic configuration format. Examine what it would take to replace ifupdown with systemd-networkd for clouds, servers, and ubuntu core by 16.04, since it's reported to be at feature parity for server use cases (i.e. vlans/bridges/bonding, but not vpns/wifi).