OpenShift Volume Concepts

Internal

• OpenShift Concepts

The Volume Mechanism

Volumes are mounted filesystems available to pods and their containers. Volumes may be backed by a number of host-local or network attached storage endpoints. The simplest volume type is EmptyDir, which is a temporary directory on a single machine. Administrators may also allow to request and attach Persistent Volumes.

Various contexts list the following objects as "volumes":

• configMap
• downwardAPI
• emptyDir
• hostPath
• nfs
• persistentVolumeClaim
• secret

Persistent Volume

https://docs.openshift.com/container-platform/latest/dev_guide/persistent_volumes.html

https://docs.openshift.com/container-platform/latest/architecture/additional_concepts/storage.html#persistent-volumes

https://docs.openshift.com/container-platform/latest/install_config/persistent_storage/index.html

Kubernetes Persistent Volume

Persistent volumes can be listed with oc get pv.

Persistent Volume Operations

Persistent Volume Definition

Persistent Volume Definition