Added net.find_fallback_network_device() to find an appropriate device to dhcp

on in the event that no network configuration was provided to cloud-init

  - Devices in /sys/class/net aside from loopback devices are scanned
  - Each device is tested to determine if it has a carrier using
    /sys/class/net/DEV/carrier, devices which do are preferred as they are most
    likely connected to the outside world
  - Devices which do not have a carrier but which might still be connected due
    to being in a dormant or down state are used as fallbacks in case no
    devices are found which have a carrier
  - A network state dictionary is generated to be passed to
    render_network_state to write ENI
  - A systemd link file is generated that will rename the chosen device to eth0

0 files changed, 0 insertions, 0 deletions