Missing None check for CluesterIP on Instantiation

[Kenta Fukaya]

Checking if ClusterIP is None by '' or None[1].
Missing None check, if CluesterIP's value is "None"(String type).

'''
    if service_info.spec.cluster_ip in ['', None] or _check_is_ip(
                service_info.spec.cluster_ip):
'''

[1] https://github.com/openstack/tacker/blob/0becf595f42c35bc32d498ba40a4e7bc4b136343/tacker/sol_refactored/infra_drivers/kubernetes/kubernetes_resource.py#L312

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tacker/+/893136

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tacker/+/893136
Committed: https://opendev.org/openstack/tacker/commit/8e489dc382124f9f2a26acaf37e2feab94c57ac6
Submitter: "Zuul (22348)"
Branch: master

commit 8e489dc382124f9f2a26acaf37e2feab94c57ac6
Author: Ken Fujimoto <email address hidden>
Date: Wed Aug 23 08:48:44 2023 +0000

    Fix status check of k8s resources

    This patch fixes the following k8s resource status check problems
    in CNF v1/v2 API.
    * Fix resource availability check failure when volumeClaimTemplates
      is not used in StatefulSet.
    * Fix a problem that resource availability check does not get status
      correctly when the ClusterIP of Service is not set.

    Closes-Bug: #2032867
    Closes-Bug: #2032870
    Change-Id: I0587c31a7c020b3e5d57f07fef902783464b0abe

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tacker 10.0.0.0rc1 release candidate.