This is next part of networkd rewrite.
This implements three new resource types coupled with controllers which
process the default configuration, merges and applying changes.
TimeSync was set up to watch the time servers resource. This is a no-op
for now, but once DHCP is implemented, this would enable time server
configuration coming from DHCP.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
The structure of the controllers is really similar to addresses and
routes:
* `LinkSpec` resource describes desired link state
* `LinkConfig` controller generates `LinkSpecs` based on machine
configuration and kernel cmdline
* `LinkMerge` controller merges multiple configuration sources into a
single `LinkSpec` paying attention to the config layer priority
* `LinkSpec` controller applies the specs to the kernel state
Controller `LinkStatus` (which was implemented before) watches the
kernel state and publishes current link status.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
