Configuring Physical Volumes (PV)

As we mentioned previously, OpenShift cluster administrators can create PV resources for future usage by OpenShift users.

Note

This topic assumes that the OpenShift environment is up and running on the openshift.example.com node. You may use oc cluster up or do an advanced OpenShift installation by using Ansible. 

As we mentioned previously, only cluster administrators can configure PVs. So, before you begin the following labs, you have to switch to the admin account:

# oc login -u system:admin

We recommend creating a new project to perform this persistent storage-related lab:

# oc new-project persistent-storage

Note

The client will automatically change the current project to the newly created one.

In the upcoming examples, we will create the following PVs:

PV	Storage backend	Size
pv-nfsvol1	NFS	2 GiB
pv-gluster	GlusterFS	3 GiB
pv-iscsi	iSCSI	1 GiB

Creating PVs for NFS shares

The NFS-related PersistentVolume resource that was created by the OpenShift API can be defined using...