What Rook does

Rook is an open-source, cloud-native storage orchestrator for Kubernetes that uses the Kubernetes Operator pattern to automate the deployment and management of Ceph distributed storage systems. It serves organizations running production Kubernetes clusters that require reliable persistent storage — including file (CephFS), block (RBD), object (RGW), and NFS storage — for containerized workloads. End users include enterprise Kubernetes operators, cloud-native platform providers (notably Red Hat via OpenShift Data Foundation), and infrastructure/platform teams managing storage in data centers and edge environments.

The core product is the Rook Operator, a Kubernetes-native controller that wraps Ceph and automates the full lifecycle of storage administration: deployment, bootstrapping, configuration, provisioning, scaling, upgrading, migration, disaster recovery, monitoring, and resource management. The platform ships Ceph CSI drivers for Kubernetes volume integration, Helm charts for deployment, a built-in Ceph Dashboard, a Ceph Toolbox for troubleshooting, and integrations such as Prometheus metrics. Recent releases (v1.16 through v1.19, 2024–2025) have added NVMe-oF block storage, RBD mirroring and asynchronous disaster recovery, object store multisite, and Container Object Storage Interface (COSI) support. Rook is a CNCF Graduated project, signaling maturity and ecosystem-level governance.

Rook operates under the Apache 2.0 open-source license and is freely available — it has no direct revenue, pricing, or commercial product of its own. The project is maintained by "Rook Authors" under The Linux Foundation/CNCF governance, with no venture funding, no commercial parent, and no disclosed headcount or financial metrics. Commercial monetization of Rook-based deployments flows to third-party partners: Clyso offers premium Ceph/Rook enterprise support and managed services, and Red Hat's OpenShift Data Foundation is a fully supported enterprise storage product built directly on Rook, Ceph, and related open-source projects. Go-to-market is therefore community-led, relying on GitHub, a 7,729-user Slack workspace, documentation, and a blog rather than traditional sales channels.

Name

Rook

Legal name

Rook Authors

Website

https://rook.io

Company type

Private

Operating status

Operating

Short description

Rook is an open-source, CNCF-graduated cloud-native storage orchestrator for Kubernetes that uses the Operator pattern to automate Ceph distributed storage (file, block, object, NFS) for enterprise Kubernetes platforms and containerized workloads.

Ownership category

akta.pro rank

Product category

Kubernetes Storage Orchestration

NAICS

Computer Systems Design and Related Services (5415), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Kubernetes & Container Platform Management (Private Cloud) (HDABABAC)

akta.pro secondary industries

Storage Virtualization & Software-Defined Storage (SDS) (HDABAEAF), Container Platforms & Orchestration (Kubernetes) (HDABADAF)

Keywords

• Cloud-native storage
• Kubernetes storage orchestration
• Ceph storage management
• Distributed file systems
• Container storage infrastructure

Headquarters

HQ city

Independence

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Open Source Distribution: Rook is released under the Apache 2.0 open-source license and is freely available for download and use. The project is community-driven with contributions from individuals and companies.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Rook is an open-source, cloud-native storage orchestrator for Kubernetes that uses the Kubernetes Operator pattern to automate the deployment, configuration, provisioning, scaling, upgrading, migration, disaster recovery, monitoring, and resource management of Ceph distributed storage. It provides production-ready management for File (CephFS), Block (RBD), and Object (RGW) storage types, turning distributed storage systems into self-managing, self-scaling, and self-healing storage services.

Product overview

Rook is an open-source, cloud-native storage orchestrator for Kubernetes that provides production-ready management for File, Block, and Object Storage. The core product is the Rook Operator which orchestrates Ceph storage, along with specialized CSI drivers for Kubernetes storage integration. The platform offers multiple storage types: Block Storage (RBD) for ReadWriteOnce workloads, Shared Filesystem (CephFS) for ReadWriteMany access, Object Storage (RGW) with S3-compatible endpoints, and NFS storage. Rook is deployed via Helm charts and includes a Ceph Dashboard for monitoring and a Toolbox for troubleshooting.

Differentiator

Problem solved

Functional benefit

Products and services

• Rook Open-source, cloud-native storage orchestrator for Kubernetes that turns distributed Ceph storage systems into self-managing, self-scaling, self-healing storage services. Licensed under Apache 2.0 and deployed via Helm charts, kubectl manifests, or container images for organizations running production Kubernetes clusters.
• Ceph Storage Provider Specialized Kubernetes Operator for Ceph that orchestrates the Ceph storage solution, automates management tasks, ensures Ceph runs well on Kubernetes, and simplifies deployment and management of file, block, and object storage for enterprise Kubernetes deployments.
• Block Storage (RBD) Block storage capability for Kubernetes using Ceph RBD (Rados Block Device), providing ReadWriteOnce (RWO) volume access for containerized workloads requiring low-latency persistent block storage.
• Shared Filesystem (CephFS) Shared filesystem capability using CephFS, providing ReadWriteMany (RWX) volume access for multiple pods concurrently accessing the same persistent storage, designed for Kubernetes workloads requiring shared file system semantics.
• Object Storage (RGW) Object storage using Ceph RGW (Rados Gateway), accessible with S3-compatible endpoints inside or outside Kubernetes clusters, supporting bucket claims, multisite replication, and notifications for cloud-native applications.
• NFS Storage NFS storage provisioner and CSI driver for Kubernetes workloads requiring Network File System access, with security and advanced configuration options for enterprise deployments.

Quantifiable outcome

• Eliminates manual storage administration tasks including deployment, configuration, provisioning, scaling, upgrading, migration, disaster recovery, monitoring, and resource management

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• ClysocoreImplementation/ SI/ Consulting PartnerClyso is a premium partner of Ceph providing expert support, integration, development, and consulting services specifically for Rook and Ceph in large enterprise environments. Clyso's managed services encompass hybrid cloud solutions utilizing open-source technologies including Kubernetes, Rook Ceph, and more. Services include Managed Ceph and Rook service, consulting and support, Ceph Full System Analysis, Clyso Enterprise Storage powered by Ceph, and Emergency Support.
• Red HatcoreImplementation/ SI/ Consulting PartnerRed Hat OpenShift Data Foundation is software-defined storage for containers based on Rook, Ceph, and other open source projects. It is a fully supported enterprise solution that helps teams develop and deploy applications with storage quickly and efficiently across clouds. OpenShift Data Foundation is included with Red Hat OpenShift Platform Plus.
• CloudicalminorImplementation/ SI/ Consulting PartnerListed as a top contributor to the Rook project, providing expertise in cloud-native storage solutions.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Others

• Ceph: Ceph is the distributed storage system that Rook orchestrates on Kubernetes. It is the underlying technology rather than a direct competitor, but Rook's roadmap, differentiation, and ecosystem are tightly coupled to Ceph's continued development and community.
• Velero: Velero is a CNCF project for backup, restore, and migration of Kubernetes resources and persistent volumes. While not a storage system itself, it is closely related to Rook's disaster recovery and migration capabilities and serves overlapping Kubernetes operators/administrators.
• GlusterFS: GlusterFS is a distributed filesystem historically integrated with Kubernetes via Heketi and Gluster-CSI. It addresses a similar distributed-storage need as Rook's CephFS module, though with declining momentum in the cloud-native ecosystem.

Direct peers

• Longhorn: Longhorn is a cloud-native distributed block storage system for Kubernetes maintained by SUSE/Rancher. It directly competes with Rook in providing persistent storage for Kubernetes workloads, though it focuses specifically on block storage rather than Rook's multi-modal Ceph-based approach.
• Portworx: Portworx, now part of Pure Storage, is an enterprise-grade Kubernetes storage platform providing persistent volumes, data protection, and multi-cloud replication. It is a direct competitor to Rook for production Kubernetes storage in enterprise environments, with a proprietary (rather than open-source-Ceph) foundation.
• MinIO: MinIO is a high-performance, S3-compatible object storage system widely deployed on Kubernetes. It competes with Rook's RGW object storage module for S3-style workloads while remaining compatible with the broader Kubernetes ecosystem.
• StorageOS: StorageOS provides a Kubernetes-native software-defined block storage solution for persistent workloads. It is a direct alternative to Rook's RBD/Ceph block storage path, particularly for teams seeking simpler operational models than full Ceph clusters.
• OpenEBS: OpenEBS is a Kubernetes-native storage platform originally from MayaData (now Cloudian) that provides block, file, and object storage via CAS engines. It competes with Rook in offering container-attached storage for Kubernetes, targeting similar DevOps and platform engineering personas.

Broad incumbents

• Red Hat OpenShift Data Foundation: Red Hat OpenShift Data Foundation is an enterprise storage product built directly on Rook, Ceph, and other open-source projects. While it incorporates Rook, it competes with other Kubernetes storage offerings in the broader OpenShift ecosystem and represents the main commercial distribution of Rook's technology.

Emerging players

• LINSTOR (LINBIT): LINBIT's LINSTOR is a software-defined block storage orchestrator for Kubernetes and Linux that competes with Rook's RBD offering. It is an emerging alternative for teams seeking SDS without the operational footprint of a full Ceph cluster.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/rook_io
• GitHubgithub.com/rook/rook

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rook