Ceph Storage Dashboard: The _iSCSI Overview_ dashboard does not display graphs if the [iscsigws] role is included in the Ansible inventory file
Issue
When deploying the Red Hat Ceph Storage Dashboard, the iSCSI Overview dashboard does not display any graphs or values if the Ansible inventory file has the [iscsigws] role included for iSCSI gateways.
Environment
Red Hat Ceph Storage 3
cephmetrics-ansible-2.0.2-1.el7cp.x86_64 and older
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