Volumes (Kubernetes)
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 (deprecated)[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
- CKA v1.23: Understand volume mode, access modes and reclaim policies for volumes
- 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
kind: PersistentVolume- Persistent Volumes (Kubernetes)
kubectl describe pvc mysql-pv-claim
Activities
See also
- Persistent Volumes
- CKA: v1.28: API, Namespace, Pods, secrets, Services, deployments, nodes, Volumes, Ingress, CKS
- Kubernetes storage, storage classes, PersistentVolume (PV), PVC, CSI,
kind: StorageClass, kind: PersistentVolumeClaim, kind: PersistentVolume,kubectl [ get | describe | edit ] pvc,volumeClaimTemplates:,kubectl patch pv,FailedMount, Volume Expansion, Volume Cloning, snapshots, ExtraVolumes, NotTriggerScaleUp,volumePVCDataSource, AllowVolumeExpansion, EKS storage, provisioner, Storage Capacity Tracking,VolumeBinding, VolumeClaimTemplate, storage.k8s.io, CKA Storage, DoKC, EmptyDir, Volume populators,storageclass.kubernetes.io
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