not possible to override dns servers when using dhcp

[Philipp Leusmann]

I need to override the nameserver provided by DHCP with a config like this:

network:
  version: 2
  ethernets:
    ens160:
      dhcp4: true
      nameservers:
        addresses: [8.8.8.8]

[Paride Legovini (paride)]

Hi Philipp,

What you need should be doable with the following configuration:

  dhcp4: true
  dhcp4-overrides:
      use-dns: false

For reference see: https://netplan.io/reference

I'm marking this report as Incomplete for the moment. Please change its status to Won't Fix if you think no further action is needed, otherwise change it back to New after commenting back and we'll look at it again. Thanks!

[Ryan Harper (raharper)]

@Paride

For additional context, users can supply such netplan config to cloud-init, however, when cloud-init renderes sysconfig (or eni) it does not *yet* emit equivalent configuration.

That is, cloudinit/net/network_state.py does not encode the idea of 'override dhcp dns/routes' such that when sysconfig or eni renderers write config, they emit the corresponding config.

[Launchpad Janitor (janitor)]

[Expired for cloud-init because there has been no activity for 60 days.]

[James Falcon (falcojr)]

Tracked in Github Issues as https://github.com/canonical/cloud-init/issues/3702