Add region support

[vakwetu]

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https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/a16b109a947845bab2d17760ddc1c72d

✔️ openstack-k8s-operators-content-provider SUCCESS in 1h 46m 37s
✔️ telemetry-operator-multinode-cloudkitty SUCCESS in 1h 24m 28s
✔️ telemetry-openstack-meta-content-provider-master SUCCESS in 2h 03m 29s
✔️ telemetry-operator-multinode-default-telemetry SUCCESS in 1h 28m 01s
❌ functional-tests-osp18 FAILURE in 1h 45m 29s