Volumes
Kubernetes offers storage abstraction options
ConfigMap & emptyDir
Volume types
PersistentVolumes abstraction has two components
AccessModes determine how the Volume will read or write
ReadWriteOnce mounts the volume as readwrite to a single node.
ReadOnlyMany mounts a volume as read-only to many nodes.
ReadWriteMany mounts volumes as readwrite to many nodes.
GCP persistent disks do not support ReadWriteMany
NFS supports the ReadWriteMany access mode.
An alternative option is Dynamic Provisioning
