ClusterHQ Ships Flocker 1.0, its Transformative Software for Container Data Management

Open Source Solution Enables Docker Containers with Persistent Data to Easily Move Between Servers, Accelerating the Creation of a New Generation of Stateful Distributed Applications

SAN FRANCISCO – June 17, 2015 – ClusterHQ, The Container Data People, today announced the general availability of Flocker 1.0, its container data management software. By enabling stateful Docker containers to be easily moved between servers, Flocker facilitates widespread production deployment of containers for databases, queues and key value stores. Modern applications are being built from both stateless and stateful microservices; Flocker makes it simple and practical for entire applications, including their state, to be containerized to take full advantage of the portability and massive per-server density benefits inherent in containers. This operational freedom allows DevOps organizations to increase the value of their Docker investment and opens the door for containers to be used in a greater variety of mainstream enterprise use cases in production. Flocker 1.0 is available as an Apache-licensed download at

“Containers are emerging as one of the most important innovations in modern computing since virtualization. Forward-thinking developers and organizations are latching onto this phenomenon for good reason. Containers are revolutionizing how microservice-based applications are built and operated, by delivering orders of magnitude, better density, and unprecedented portability of applications. By making it possible for containers and their data volumes to be moved in production IT environments, innovative vendors are enabling the business benefits of containers to reach even further, removing barriers to Dockerizing everything,” noted Holger Mueller, VP and principal analyst, Constellation Research.

Empowering portability of containers and their data as a single unit, a prerequisite for many production uses, Flocker lets DevOps teams easily containerize their stateful microservices, thus consolidating their entire distributed application into an all-Docker development and operations environment. With everything running in containers, IT operations can be simplified into a unified set of operational processes. Moreover, making it easy to containerize stateful microservices decreases costs so that far more applications can be run on a given set of hardware. Because Flocker enables easy migration of stateful containers, organizations now have the flexibility to accommodate common IT processes such as routine maintenance and load balancing of workloads across servers. The downstream impact is meaningful in today’s real-time economy: businesses can innovate faster and become more responsive to their customers.

“Organizations use Docker to accelerate their application development lifecycle and achieve frictionless portability of their distributed applications to anywhere. ClusterHQ identified early on that running stateful services in containers would help drive Dockerized applications more rapidly into production. Their technology helps organizations that want to take advantage of Docker’s benefits for stateful as well as stateless applications,” said Nick Stinemates, head of business development and technical alliances, Docker, Inc.

Flocker provides an API and CLI for managing containers and data volumes, and works with multiple storage solutions including Amazon EBS, Rackspace Cloud Block Storage, any OpenStack Cinder-compatible device, EMC ScaleIO and EMC XtremIO. The pluggable nature of Flocker is designed to work with any storage system, delivering the ability to integrate Dockerized applications with existing storage backends. Any company or community that wants its storage to work with Docker can easily write a driver for Flocker.

“The efficiency and operational freedom of using containers for both compute and storage creates a competitive advantage so significant that smart organizations are seeking ways to containerize more of the applications that are strategic to their business. The ClusterHQ mission is to make it as easy to containerize data as it is to containerize compute,” said Mark Davis, CEO of ClusterHQ.

In addition to this news, ClusterHQ today announced a partnership with EMC, as well as the compelling findings from a recent third party survey regarding current and planned adoption of container technology across organizations of all sizes. To learn more about the EMC partnership visit; to access the survey and report visit

During DockerCon 2015, June 22 - 23 in San Francisco, learn about ClusterHQ’s Flocker 1.0 at Booth G8 and come hear Luke Marsden, CTO of ClusterHQ speak on Monday, June 22 at 2:50 PM PT.

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About ClusterHQ

ClusterHQ makes data as portable, flexible and agile as the containers powering modern computing. The company’s suite of products– FlockerHub, Fli and Flocker–give developers and operations teams the control needed to manage the data powering microservices. At the center of the ClusterHQ platform is FlockerHub, which is like GitHub® for data. With it, teams can store and share any Docker data volume with access-controlled users or machines. Fli, a Git-like command line interface, snapshots, branches, pushes and pulls data volumes to FlockerHub. Used together, DevOps teams can seamlessly move data between laptops, test environments, data centers and clouds all with version and access controls. In addition to FlockerHub and Fli, customers worldwide use Flocker, the leading open source volume orchestrator designed make stateful containers portable in production. Flocker works with over 15 cloud and enterprise storage systems, including four of the five global leaders: EMC, HPE, Dell and NetApp. ClusterHQ provides unparalleled data management across entire containerized application lifecycles. We are the Container Data People™.

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