Velero is a tool that enables backup and restore Kubernetes cluster resources and persistent volumes. It simplifies the task of taking backups/restores, migrating resources to other clusters, and replication of clusters.
Stores Kubernetes resources in highly available object stores (S3, GCS, Blob Storage, etc.)
Backs up PVs / PVCs using cloud providers’ disk capture mechanism
Scheduling backups with a syntax cron
Rotation of automatic backups with TTL (Time to Live)
Kubernetes Pods with persistent volumes are important for data persistence because containers are being created and destroyed, depending on the load and on the specifications of the developers. Pods and containers can self-heal and replicate. They are, in essence, ephemeral.
Before start this post I’ve been posted some hands on and conceptual docs to understand since the beginning this solution.
Ceph is open source, software-defined storage maintained by RedHat. It’s capable of block, object, and file storage. The clusters of Ceph are designed in order to run on any hardware with the help of an algorithm called CRUSH (Controlled Replication Under Scalable Hashing). This algorithm ensures that all the data is properly distributed across the cluster and data quickly without any constraints. Replication, Thin provisioning, Snapshots are the key features of the Ceph storage.
There are good reasons for using Ceph as IaaS and PaaS storage :
Scale your operations and move to market faster.
Bridge the gaps between application development and data science.
Gain deeper insights into your data.
File, block and Object storage in the same wrapper.
Better transfer speed and lower latency
Easily accessible storage that can quickly scal up or down .