This removes networkd, updates network ready condition, enables all the
controllers which were previously disabled.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
This implements two controllers: one which generates templates for
`/etc/hosts` and `/etc/resolv.config`, and another generic controller
which renders files to `/etc` via shadow bind mounts.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
