Added support for Prometheus

[iamniting]

replica of #2465

just for testing and debugging purpose

[openshift-ci]

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[openshift-ci]

@iamniting: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/ocs-operator-bundle-e2e-aws	0c14dda	link	true	/test ocs-operator-bundle-e2e-aws

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[iamniting]

Original PR is merged.