The OVN QoS rules for router and floating IPs have the same priority
and similar matches. For the router rule, the match is the gateway
Logical_Router_Port, that always matches the traffic for the floating IP
too. If two QoS rules with the same priority match, the selected one
is not defined [1].
This patch is increasing the priority of the floating IP OVN QoS rules
to match before the router QoS rules.
NOTE: the floating IP QoS rules are deleted matching the QoS external_ids
[2], instead of creating the same QoS rule, thus the priority is not
needed for the deletion.
[1]https://www.ovn.org/support/dist-docs/ovn-nb.5.html
[2]123bd115f3/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/extensions/qos.py (L451-L456)
Closes-Bug: #2110018
Change-Id: If01a8783ac998b2a1f1249ab6f555dd1a5148ea8
012327bb4d