Public bug reported: Ubuntu 2404
network-manager 1.46.0-1ubuntu2.2 netplan.io 1.1.1-1~ubuntu24.04.1 When [improving support for primary interfaces of bonds](https://github.com/cockpit-project/cockpit/pull/21533) in Cockpit, we encountered this message in the journal: ``` Feb 10 08:43:17 ubuntu NetworkManager[9361]: /etc/netplan/90-NM-861a710b-9858-48f4-b5e5-a770ab67bd1f.yaml:13:18: Error in network definition: tbond: interface 'cockpit' is not defined Feb 10 08:43:17 ubuntu NetworkManager[9361]: primary: "cockpit" Feb 10 08:43:17 ubuntu NetworkManager[9361]: ^ ``` The message seems to come from "netplan apply": ``` # netplan apply [...] /etc/netplan/90-NM-4883fb46-4315-41f1-b945-bb096768da61.yaml:13:18: Error in network definition: tbond: interface 'cockpit' is not defined primary: "cockpit" ^ # echo $? 78 ``` NetworkManager seems to ignore the failure, and somehow the bond interface is created anyway, but the "bond.options" setting of its connection doesn't include the expected "primary" attribute: ``` # nmcli con show tbond | grep ^bond bond.options: mode=active-backup,downdelay=0,miimon=100,updelay=0 ``` I have no idea what the relationship between netplan and NetworkManager is. I am guessing that NetworkManager is writing the yaml files in /etc/netplan/. The problem seems to be that the definition of the "cockpit" interface uses a generated name: ``` network: version: 2 ethernets: NM-3287d9ea-ffda-49df-9f21-27594d7cc1b8: renderer: NetworkManager match: name: "cockpit" wakeonlan: true networkmanager: uuid: "3287d9ea-ffda-49df-9f21-27594d7cc1b8" name: "cockpit" passthrough: connection.controller: "tbond" connection.master: "tbond" connection.port-type: "bond" connection.slave-type: "bond" ethernet._: "" ``` If I change this to ``` network: version: 2 ethernets: cockpit: renderer: NetworkManager match: name: "cockpit" [...] ``` then the error disappears and `bond.options` shows the expected value: ``` # nmcli con show tbond | grep ^bond bond.options: mode=active-backup,downdelay=0,miimon=100,primary=cockpit,updelay=0 ``` ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2098093 Title: Setting primary interface for a bond fails with netplan To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2098093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
