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Configuring NFS exports on the server

This needs to be done on the server-side only. We are going to export several file systems under the /exports directory. The exports will only be accessible by OpenShift nodes.

OpenShift cluster runs Docker containers using random User IDs (UIDs). It is difficult to predict a UID to give proper NFS permissions, so we have to configure the following NFS settings to allow OpenShift to use NFS shares properly:

• A share should be owned by the nfsnobody user and group.
• A share should have 0700 access permissions.

• A share should be exported using the all_squash option. This will be described later in this topic.

1. Create the required directories and assign them to the proper permissions:

# mkdir -p /exports/{nfsvol1,nfsvol2,nfsvol3} ...