PersistentVolumes¶

Represent a piece of storage in the cluster that has been provisioned by an administrator or dynamically through Storage Classes. It is a resource in the cluster, independent of the lifecycle of any individual pod.

Rancher cluster workload

Type PV¶

Amazon EKS (Elastic Kubernetes Service)¶

A managed Kubernetes service by AWS that simplifies deploying Kubernetes on AWS infrastructure, providing scalable and highly available storage for Kubernetes applications.

Azure Disks Ultra¶

High-performance, low-latency SSD storage with high IOPS, suitable for data-intensive workloads. Can dynamically adjust disk performance without requiring a reboot.

Persistent Volumes (PV) in Kubernetes¶

Represents a physical storage resource in a Kubernetes cluster that provides durable storage beyond the lifecycle of containers, ensuring data persists even when containers restart.

Volumes in Kubernetes¶

A storage abstraction that resolves file loss issues when containers terminate. It allows sharing files between containers and can be either ephemeral or persistent.

vsphereVolume¶

Allows mounting a vSphere VMDK volume to a Pod, supporting VMFS and VSAN datastores, and preserving volume content when unmounted. Requires pre-creation of the VMDK volume.

Google Persistent Disk¶

A high-performance storage solution for Kubernetes clusters on Google Cloud Platform (GCP). It offers reliable, durable block storage that persists beyond container lifecycles.

HostPath¶

A volume type that mounts a file or directory from the node’s filesystem into a Pod. It’s used for sharing data between Pods and the node but is not suitable for production environments.

Local¶

Persistent storage using a local disk on the node, providing high-performance storage that persists until the node is decommissioned or reboots.

Longhorn¶

A cloud-native distributed block storage solution for Kubernetes that provides reliable and scalable persistent storage, with features like snapshots, backups, and volume replication.

A volume that mounts an NFS (Network File System) share into a Pod. It allows Pods to access files over the network and can be shared between multiple Pods, making it ideal for shared storage scenarios.