azure-disk-csi-driver does not use its own credentials / secret for Azure API. It reuses /etc/kubernetes/cloud.conf from the host, used as a HostPath volume in CSI driver pods. The cloud.conf will not contain credentials when https://github.com/openshift/installer/pull/5138 is merged. The CSI driver operator should use CredentialsRequest to obtain its own Azure credentials, merge it with ConfigMap openshift-config/cloud-provider-config and provide it to the driver. This should work the same both on Azure Cloud and Azure Stack hub.
cloud-controller-manager-operator will use an init container to merge the ConfigMap and Secret: https://github.com/openshift/cluster-cloud-controller-manager-operator/pull/106 We could reuse the same injector image.
This bug has some information on that. Can we close one of them? Which one? https://bugzilla.redhat.com/show_bug.cgi?id=1953185
Closing as duplicate of 1953185, feel free to re-open if you disagree. *** This bug has been marked as a duplicate of bug 1953185 ***