Description of problem:
In testcloud usermode sessions, we're using two network device setup:
- guest <-> internet
- host   -> guest

The issue is, since the cloud-init-22.1 , the cloud-init depends on NetworkManager-config-server, which includes /usr/lib/NetworkManager/conf.d/00-server.conf. The presence of this file disables init of the second network device making it impossible to ssh from host to guest in such setup. Removing that file fixes the issue.

Version-Release number of selected component (if applicable):
NetworkManager-config-server-1.36.2-1.fc37.noarch
cloud-init-22.1-2.fc37.noarch

How reproducible:
Always

Steps to Reproduce:

testcloud instance -c qemu:///session create fedora:rawhide
# or
tmt run --remove provision -vvv -h virtual -i fedora-rawhide


Actual results:
After bootup:

$ nmcli
...

eth1: disconnected
        "Red Hat Virtio"
        ethernet (virtio_net), 52:54:00:12:34:56, hw, mtu 1500


Expected results:

$ nmcli
...
eth1: connected to Wired connection 1
        "Red Hat Virtio"
        ethernet (virtio_net), 52:54:00:12:34:56, hw, mtu 1500
        inet4 10.0.2.15/24
        route4 10.0.2.0/24 metric 101
        route4 default via 10.0.2.2 metric 101
        inet6 fec0::84a0:da27:b56d:bb3f/64
        inet6 fe80::68b6:2034:a07c:8407/64
        route6 fe80::/64 metric 1024
        route6 fec0::/64 metric 101
        route6 default via fe80::2 metric 10

Additional info:

The libvirt network configuration looks like this:
<interface type="user">
  <mac address="52:54:00:1a:96:d4"/>
  <ip address="172.17.2.0" family="ipv4" prefix="24"/>
  <model type="virtio"/>
  <alias name="net0"/>
  <address type="pci" domain="0x0000" bus="0x00" slot="0x03" function="0x0"/>
</interface>

^^^
That's for guest <-> internet which works fine

  <qemu:commandline>
    <qemu:arg value="-netdev"/>
    <qemu:arg value="user,id=testcloud_net.10032,hostfwd=tcp::10032-:22"/>
    <qemu:arg value="-device"/>
    <qemu:arg value="virtio-net-pci,netdev=testcloud_net.10032"/>
  </qemu:commandline>

^^^
That's the host -> guest which is broken now.