Volumes (Kubernetes)

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Kubernetes Volumes allows to store data independent of Container restarts. Volumes in Kubernetes are different that Docker Volumes.[1]

Kubernetes supports different type of volumes [2]:

  • Cloud providers: awsElasticBlockStore, azureDisk, azureFile
  • Storage technologies: fc (fibre channel)[3], iscsi
  • Networked filesystems: cephfs, nfs, glusterfs
  • Others:
    • cinder, configMap, CSI, downwardAPI
    • emptyDir: the data in the emptyDir is deleted forever when Pod is removed from a node.
    • flexVolume[4], can be expanded [5]
    • flocker, gcePersistentDisk, hostPath, local, persistentVolumeClaim, projected, portworxVolume, quobyte, rbd, scaleIO, secret, storageos, vsphereVolume
    • Support for raw block storage in CSI (v1.18, March 2020)
  • Deprecated: gitRepo

Persistent volumes subsystem provides an API for users and administrators that abstracts details of how storage is provided from how it is consumed.


Related terms


Activities

See also

  • https://kubernetes.io/docs/concepts/storage/volumes/
  • https://kubernetes.io/docs/concepts/storage/volumes/#types-of-volumes
  • https://kubernetes.io/docs/concepts/storage/#fc
  • https://kubernetes.io/docs/concepts/storage/volumes/#flexVolume
  • https://kubernetes.io/docs/concepts/storage/persistent-volumes/#expanding-persistent-volumes-claims
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