OpenShift Documentation[0] only displays the steps on how to configure loki stack on AWS, there is no information available for the rest of the cloud providers. To configure the Lokistack for rest of the cloud providers steps mentioned in upstream[1] has to be merged with OpenShift Documenatation

[0] https://docs.openshift.com/container-platform/4.11/logging/cluster-logging-loki.html#logging-loki-deploy_cluster-logging-loki

 [1] https://loki-operator.dev/docs/object_storage.md/