OpenEBS provides a Kubernetes native distributed storage solution which is friendly on developers and administrators. It is completely open source and part of the CNCF. Previously I wrote about installing and using OpenEBS, Jiva storage engine, on the Charmed Kubernetes distribution of Canonical. The Jiva storage class uses storage inside managed pods. cStor however can use raw disks attached to Kubernetes nodes. Since I was trying out Kubespray (also a CNCF project) on KVM and it is relatively easy to attach raw storage to KVM nodes, I decided to give cStor a try. cStor (which uses ZFS behind the scenes) is also the more recent and more robust storage engine and suitable for more serious workloads. See here. You can download the scripts I used to setup my Kubernetes environment here.
