Hi everyone,

We are using OVN together with Openstack(Ussuri) with one of the late master 
versions of ovn (83296a42e) and we see the following issue. After booting a VM 
it is not possible to reach the metadata service in the corresponding network 
namespace of the neutron-ovn-metadata-agent.service. 

It also turned out that a recompute of the rules on the ovn-controller fixes 
the issue. After more debugging we could identify the change that introduced 
this situation:

commit d4bca93c0851c2f0b739411cd49ce32e3b8263bb "controller: Don't allocate 
zone ids for non-VIF port bindings."

diff --git a/controller/ovn-controller.c b/controller/ovn-controller.c
index 678419ab3..739048cf8 100644
--- a/controller/ovn-controller.c
+++ b/controller/ovn-controller.c
@@ -1919,6 +1919,11 @@ ct_zones_runtime_data_handler(struct engine_node *node, 
void *data)
         struct shash_node *shash_node;
         SHASH_FOR_EACH (shash_node, &tdp->lports) {
             struct tracked_lport *t_lport = shash_node->data;
+            if (strcmp(t_lport->pb->type, "")) {
+                /* We allocate zone-id's only to VIF lports. */
+                continue;
+            }
+
             if (t_lport->tracked_type == TRACKED_RESOURCE_NEW) {
                 if (!simap_contains(&ct_zones_data->current,
                                     t_lport->pb->logical_port)) {

Anyone has an idea how to fix it?

Regards,
Benjamin

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