Difference between revisions of "Volumes (Kubernetes)"

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Kubernetes supports different type of volumes <ref>https://kubernetes.io/docs/concepts/storage/volumes/#types-of-volumes</ref>:  
 
Kubernetes supports different type of volumes <ref>https://kubernetes.io/docs/concepts/storage/volumes/#types-of-volumes</ref>:  
* Cloud providers: awsElasticBlockStore, azureDisk, azureFile
+
* Cloud providers: <code>awsElasticBlockStore, azureDisk, azureFile</code>
* Storage technologies: fc (fibre channel)<ref>https://kubernetes.io/docs/concepts/storage/#fc</ref>, iscsi
+
* Storage technologies: [[fc]] (fibre channel)<ref>https://kubernetes.io/docs/concepts/storage/#fc</ref>, iscsi
 
* Networked filesystems: [[cephfs]], [[nfs]], [[glusterfs]]
 
* Networked filesystems: [[cephfs]], [[nfs]], [[glusterfs]]
 
* Others:  
 
* Others:  
** cinder, configMap, [[CSI]], downwardAPI
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** [[Cinder]], configMap, [[CSI]], downwardAPI
 
** emptyDir: the data in the emptyDir is '''deleted''' forever when Pod is removed from a node.
 
** emptyDir: the data in the emptyDir is '''deleted''' forever when Pod is removed from a node.
** flexVolume<ref>https://kubernetes.io/docs/concepts/storage/volumes/#flexVolume</ref>, can be expanded <ref>https://kubernetes.io/docs/concepts/storage/persistent-volumes/#expanding-persistent-volumes-claims</ref>
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** [[FlexVolume]] (deprecated)<ref>https://kubernetes.io/docs/concepts/storage/volumes/#flexVolume</ref>, can be expanded <ref>https://kubernetes.io/docs/concepts/storage/persistent-volumes/#expanding-persistent-volumes-claims</ref>
** flocker, gcePersistentDisk, hostPath, local, persistentVolumeClaim, projected, portworxVolume, quobyte, rbd, scaleIO, secret, storageos, vsphereVolume
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** flocker, gcePersistentDisk, [[hostPath]], local, [[persistentVolumeClaim]], projected, portworxVolume, quobyte, rbd, [[scaleIO]], secret, storageos, vsphereVolume
** Support for raw block storage in CSI ([[v1.18]], March 2020)
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** Support for raw [[block storage]] in CSI ([[v1.18]], March 2020)
 
* Deprecated: gitRepo
 
* Deprecated: gitRepo
  
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== Related terms ==
 
== Related terms ==
 +
* [[CKA v1.23]]: Understand [[volume mode]], [[access modes]] and [[reclaim policies]] for [[Volumes (Kubernetes)|volumes]]
 
* [[CKA v1.18]]: Understand [[persistent volumes]] and know how to create them
 
* [[CKA v1.18]]: Understand [[persistent volumes]] and know how to create them
 +
* [[CKA v1.18]]: Understand [[access modes]] for volumes
 
* [[CKA v1.15]]: [[Understand PersistentVolumeClaims for storage]]
 
* [[CKA v1.15]]: [[Understand PersistentVolumeClaims for storage]]
 
+
* <code>[[kind]]: PersistentVolume</code>
 +
* [[Persistent Volumes (Kubernetes)]]
 +
* <code>[[kubectl describe]] pvc mysql-pv-claim</code>
  
 
== Activities ==
 
== Activities ==

Revision as of 16:22, 9 July 2022

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:
  • 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
  • Advertising: