automatically start networkd if YAML config is present

[Martin Pitt]

networkd is not enabled by default as it would be a pointlessly running daemon unless there is some actual configuration. netplan should automatically start networkd on boot if /etc/netplan/*.yaml exists so that it does not need to be enabled explicitly.

[Martin Pitt (pitti)]

Plan:
 - Move "generate" from being a .service to a systemd system-generator. Create a flag file in /run to only run at boot, not every time on daemon-reload.
 - The future "netplan apply" will remove the flag file and re-run the generator.
 - To provide easier access to YAML errors, provide a "netplan check" verb.

[Launchpad Janitor (janitor)]

This bug was fixed in the package nplan - 0.5

---------------
nplan (0.5) yakkety; urgency=medium

  * Recognize booean values as per YAML spec (LP: #1606839)
  * Add explicit systemd test dependency
  * networkd: Disable LinkLocalAddressing and RA for bridge components
  * Move "generate" from a systemd unit to a systemd generator
  * Automatically start networkd iff there is any networkd configuration
    (LP: #1607693)

 -- Martin Pitt <email address hidden> Mon, 01 Aug 2016 17:27:54 +0200