Rook enables EdgeFS storage systems to run on Kubernetes using Kubernetes primitives.
With Rook running in the Kubernetes cluster, Kubernetes PODs or External applications can mount block devices and filesystems managed by Rook, or can use the S3/Swift API for object storage. The Rook operator automates configuration of storage components and monitors the cluster to ensure the storage remains available and healthy.
The Rook operator is a simple container that has all that is needed to bootstrap and monitor the storage cluster. The operator will start and monitor StatefulSet storage Targets, gRPC manager and Prometheus Multi-Tenant Dashboard. All the attached devices (or directories) will provide pooled storage site. Storage sites then can be easily connected with each other as one global name space data fabric. The operator manages CRDs for Targets, Scale-out NFS, Object stores (S3/Swift), and iSCSI volumes by initializing the pods and other artifacts necessary to run the services.
The operator will monitor the storage Targets to ensure the cluster is healthy. EdgeFS will dynamically handle services failover, and other adjustments that maybe made as the cluster grows or shrinks.
The EdgeFS Rook operator also comes with tightly integrated CSI plugin. CSI pods deployed on every Kubernetes node. All storage operations required on the node are handled such as attaching network storage devices, mounting NFS exports, and dynamic provisioning.
Rook is implemented in golang. EdgeFS is implemented in Go/C where the data path is highly optimized. While fully immutable, you will be impressed with additional capabilities EdgeFS provides besides ultra high-performant storage, i.e. built in Data Reduction with Global De-duplication and on the fly compression, at rest encryption and per-Tenant QoS controls.
Detailed instructions on how to get EdgeFS Rook operator configured available at Rook.IO web site