Network Setup: Investigate Tap Device Creation for type="ethernet" #134
Description
First of all: this has a low priority, as our pipeline is currently stable (because of #124).
Objective of this ticket is to investigate if our network setup we have is correct at all or a "works by accident". This is especially important if we want to upstream general ch libvirt improvements soon.
Why do we use <target dev="tap1" rather than <source dev="tap1" for network devices of type ethernet. By definition, type ethernet is for externally provided network devices. But we use it in a way that libvirt still create these devices and a systemd-networkd rule then attaches the right IP to it once the device appears.
Although this works, it technically sounds broken. Please investigate and perhaps refactor!
More info also in this thread: #127.