Comment 2 for bug 1877594

I've subscribed field critical.

We worked around this issue with the following:

# from unit
sudo ip link add name br-prov type bridge
sudo ip link set br-prov up
sudo ip link set bond1 master br-prov

# From the unit
sudo mkdir /etc/network/interfaces.d
sudo apt install ifupdown # needed package

# From the infra node
juju run -u neutron-gateway/<unit-id> hooks/config-changed

However, this causes issues with Juju as juju checks /sbin/ifup when deciding to use default network interfaces or netplan for bridging when deploying lxds (https://github.com/juju/juju/blob/d59b8637e150943cb987a8194addbdc116746b63/container/broker/instance_broker.go#L125).

To work around this, we have temporarily uninstalled ifupdown (removing /sbin/ifup) and this allows juju to deploy lxds correctly, creating necessary bridges.

What would the recommended workaround for this be?