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I am using an Ubuntu 18 on a virtualbox machine and I am trying to overwrite a netplan config related to an interface. There are two config files located in /etc/netplan/.

50-cloud-init.yaml:

network: ethernets: enp0s3: dhcp4: true match: macaddress: 02:d4:40:b8:a4:a0 set-name: enp0s3 version: 2 

50-vagrant.yaml:

--- network: version: 2 renderer: networkd ethernets: enp0s8: dhcp4: true enp0s9: dhcp4: true enp0s10: addresses: - 192.168.56.200/24 

I want to overwrite some configurations in 60-myconfig.yaml, such that enp0s8 gets a static IP address and does not use DHCP. However, I prefer to not to use interface name as the key and use match instead. But it doesn't work:

--- network: version: 2 renderer: networkd ethernets: myinterface: match: name: enp0s8 dhcp4: false addresses: - 192.168.1.160/24 

when I change key myinterface to enp0s8 it works properly. I guess netplan does not support overwriting an interface config using match. Is it true or I am doing something wrong??

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  • Through my experimentation, it doesn't appear to support overwriting an interface config using match. I can't find anything explicit in the docs that say this, but I tested a couple of different scenarios on Ubuntu 18.04 (netplan 0.99) and got the same results that you did Commented Dec 12, 2023 at 22:16
  • On our systems, we just modify the out-of-the-box netplan config files directly. If you absolutely can't (or don't want to) modify 50-vagrant.yaml directly, then you could create a file /run/netplan/50-vagrant.yaml that overrides it. (/run is obviously volatile, so to make it "persist" you'd have to create a service that runs on boot and creates this file, either before netplan runs or afterwards and then calling netplan apply) Commented Dec 12, 2023 at 22:17

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