[O-RAN] Notification subscription by regular expression with * does NOT subscribe to multiple nodes

[Douglas Henrique Koerich]

Brief Description
-----------------
Using '*' in the resource address to request notification subscription does not apply to all nodes, only the current one (like for '.')

Severity
--------
Minor

Steps to Reproduce
------------------
In a multi-node system with the notification client ("sidecar") running in a pod, request for multiple notifications using the URI:
curl --path-as-is -v -H 'Content-Type: application/json' -X POST -d '{"ResourceAddress": "/./*/sync/ptp-status/lock-state", "EndpointUri": "http://127.0.0.1:9090/v2/resource_status/ptp"}' http://127.0.0.1:8080/ocloudNotifications/v2/subscriptions | python -m json.tool

Expected Behavior
------------------
Client should receive notifications from all nodes where PTP is active

Actual Behavior
----------------
Notifications are received from the residing node only

Reproducibility
---------------
Reproducible

System Configuration
--------------------
All but AIO-SX

Branch/Pull Time/Commit
-----------------------
master

Last Pass
---------
New test scenario

Test Activity
-------------
Feature Testing

Workaround
----------
Subscribe to each node separately

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/ptp-notification-armada-app/+/865059

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/ptp-notification-armada-app/+/865059
Committed: https://opendev.org/starlingx/ptp-notification-armada-app/commit/b6457447e63fb21b051f3c42fe95e74966f23c95
Submitter: "Zuul (22348)"
Branch: master

commit b6457447e63fb21b051f3c42fe95e74966f23c95
Author: Douglas Henrique Koerich <email address hidden>
Date: Thu Nov 17 17:27:36 2022 -0300

    Allow subscription to all nodes with '*'

    The O-RAN standard was not being followed when resource address was
    being specified with '*' as the "nodeName", which means that
    subscription should be created to be notified about all nodes.

    Test Plan:
    PASS: Submitting POST request with '*' wildcard in resource address;
    PASS: Rejecting POST for specific node when there is a subscription for
          '*' in repo;
    PASS: Rejecting POST for current node ('.') when there is a subscription
          for '*' in repo.

    Closes-Bug: #1996929
    Signed-off-by: Douglas Henrique Koerich <email address hidden>
    Change-Id: Ifdaa2d2b9c9a45ad41981d2a75f7101bfa2f7c9c