Use predictableIPs labels to advertise pods addresses

[lmiccini]

Octavia and Designate have special configmaps storing ip addresses that are internally managed.

$ oc get configmaps octavia-hmport-map -o yaml
apiVersion: v1
data:
hm_worker-0: 172.23.0.103
hm_worker-1: 172.23.0.105
hm_worker-2: 172.23.0.107
rsyslog_worker-0: 172.23.0.104
rsyslog_worker-1: 172.23.0.106
rsyslog_worker-2: 172.23.0.108
kind: ConfigMap
metadata:
name: octavia-hmport-map
namespace: openstack

oc get cm designate-bind-ip-map -o yaml
apiVersion: v1
data:
bind_address_0: 172.67.0.100
bind_address_1: 172.67.0.101
bind_address_2: 172.67.0.102

$ oc get cm designate-mdns-ip-map -o yaml
apiVersion: v1
data:
mdns_address_0: 172.67.0.97
mdns_address_1: 172.67.0.98
mdns_address_2: 172.67.0.99

These IPs should also be advertised in addition to the network-attachment-definitions for each pod.

This change watches pods for the presence of a predictableip label, if this is found it appends the ip to the already-existing frrconfiguration created for the network-attachment-definition ip.

Jira: https://issues.redhat.com/browse/OSPRH-20083

Assisted-by: claude-4.5-sonnet

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lmiccini

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [lmiccini]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/ed643de796014bcebbf6f3bb601bc12d

✔️ openstack-k8s-operators-content-provider SUCCESS in 1h 08m 23s
❌ podified-multinode-edpm-deployment-crc FAILURE in 32m 59s
❌ cifmw-crc-podified-edpm-baremetal FAILURE in 44m 56s

[lmiccini]

/test infra-operator-build-deploy-kuttl

[lmiccini]

recheck