OpenVSwitch Support: no package for `nm-openvswitch`

[Kathryn Morgan]

Ubuntu 20.04 LTS
Package Version: NA
Issue: Ubuntu NetworkManager packages for Ubuntu 20.04+ lack OVS support.

Expected:
  Running the following:
    `nmcli con up ovs-mgmt1`
    `nmcli connection add type ovs-interface con-name mgmt1 ifname mgmt1 ip4 192.168.16.2/24 gw4 192.168.16.1 master internal`
  Should raise the ovs interface(es) defined.

Actual results:
  `Connection activation failed: NetworkManager plugin for 'ovs-interface' unavailable`
  `Connection activation failed: NetworkManager plugin for 'ovs-port' unavailable`
  `Connection activation failed: NetworkManager plugin for 'ovs-bridge' unavailable`
*depending on interface type being raised

Argument:
  As of the release of rpm distros {CentOS,RHEL} 8.x there is no standard method to raise OVS interfaces without resorting to depricated ifscripts. deb based releases dropped NetworkManager nm-* support for OVS in favor of networkd. rpm based releases have dropped networkd in favor of NetworkManager.

[Sebastien Bacher (seb128)]

Indeed Debian disabled the option in the nm build

https://salsa.debian.org/utopia-team/network-manager/-/commit/5f0d2fd8

But didn't provide a new binary for it yet it seems