Added a property to userdata to allow a network interface to be ignored,
such that Talos will perform no operations on it (including DHCP).
Also added kernel commandline parameter (talos.network.interface.ignore)
to specify a network interface should be ignored.
Also allows chaining of kernel cmdline parameter Contains() where the
parameter in question does not exist.
Fixes#1124
Signed-off-by: Seán C McCord <ulexus@gmail.com>
This is a major rewrite of our network subsystem.
- This changes networkd to run as a standalone app versus internal goroutine
- This changes out the netlink package with the more idiomatic netlink/rtnetlink
packages
- This changes the initial network bootstrap/discovery from using a single
interface to attempting to bring up all interfaces
- This moves us back on to the upstream dhcp library
Signed-off-by: Brad Beam <brad.beam@talos-systems.com>
