Prerequisites

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• You have the oc command line tool installed on your workstation.
• You are logged on to a workstation that has access to the Red Hat OpenStack Services on OpenShift (RHOSO) control plane as a user with cluster-admin privileges.
• You have planned networking for the Shared File Systems service.
• You have enabled the Shared File Systems service.
• For native CephFS and CephFS-NFS:
  • A CephFS file system must exist on the Red Hat Ceph Storage cluster.
  • A Ceph user must exist that has CephX capabilities (caps) to perform operations on the CephFS file system.
• For CephFS-NFS only:
  • A ceph nfs service must exist in the Ceph Storage cluster.
  • You have created an isolated StorageNFS network for NFS exports.
  • You have created a corresponding StorageNFS shared provider network in the Networking service (neutron). The StorageNFS shared provider network maps to the isolated StorageNFS network of the data center.
  • The StorageNFS network isolates NFS traffic while allowing RHOSO users to attach their Compute instances to access shares.
  • Do not select a custom port to expose NFS. Only the default NFS port of 2049 is supported.
  • You must enable the Red Hat Ceph Storage ingress service and set the ingress-mode to haproxy-protocol. Otherwise, you cannot use IP-based access rules with the Shared File Systems service.
  • For production environments, do not provide access to 0.0.0.0/0 on shares to mount them on client machines.