Netplan is not applying DNS configuration

[Giuseppe Petralia]

This is happening on Ubuntu Jammy netplan version 0.106.1-7ubuntu0.22.04.2

Netplan is not applying the DNS configuration.

I have the following configuration:

```
network:
  version: 2
  ethernets:
    eth0:
      match:
        macaddress: 00:16:3e:27:ef:73
      addresses:
      - 192.168.2.140/24
      gateway4: 192.168.2.1
      nameservers:
        search: [mydomain.com, maas]
        addresses: [192.168.1.14, 192.168.2.10, 192.168.1.13, 192.168.1.11, 192.168.1.12]
```

After running `netplan apply` I don't have any dns configured.

Downgrading netplan to 0.105-0ubuntu2~22.04.3 make it working again.

[Danilo Egea Gondolfo (danilogondolfo)]

Hi,

is DNS the only thing that doesn't get applied?

Your configuration works fine for me in a Jammy VM in LXD.

Is this a container for any chance?

[Giuseppe Petralia (peppepetra)]

This is happening on an LXD.

We believe we are hitting https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2041480

Commenting the following lines:

      match:
        macaddress: 00:16:3e:27:ef:73

make it working as well on version 0.106.1-7ubuntu0.22.04.2

[Lukas Märdian (slyon)]

So is the macaddress matching really needed for your usecase (it's meant to be used with physical hardware)? Interface names should be relatively predictable in an LXD container, anyway. And using those makes it work, as suggested in comment #2.