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REX-Ray provides a vendor agnostic storage orchestration engine.

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REX-Ray provides a vendor agnostic storage orchestration engine. The primary design goal is to provide persistent storage for Docker containers as well as Mesos frameworks and tasks.

It is additionally available as a Go package, CLI tool, and Linux service which enables it to be used for additional use cases.

Documentation Docs

You will find complete documentation for REX-Ray at rexray.readthedocs.org, including licensing and support information. Documentation provided at RTD is based on the latest stable build. The /.docs directory in this repo will refer to the latest or specific commit.

Architecture

REX-Ray is available as a standalone process today and in the future (0.4) additionally as a distributed model of client-server. The client performs a level abstraction of local host processes (request for volume attachment, discovery, format, and mounting of devices) while the server provides the necessary abstraction of the control plane for multiple storage platforms.

Irrespective of platform, REX-Ray provides common functionality for the following.

Cloud platforms:

  • AWS EC2 (EBS)
  • Google Compute Engine
  • OpenStack
  • Private Cloud
  • Public Cloud (RackSpace, and others)

Storage platforms:

  • EMC ScaleIO
  • XtremIO
  • VMAX
  • Isilon
  • Others
  • VirtualBox

Operating System Support

By default we prescribe the curl-bash method of installing REX-Ray. Other methods are available, please consult the documentation for more information.

We explicitly support the following operating system distributions.

  • Ubuntu
  • Debian
  • RedHat
  • CentOS
  • CoreOS
  • OSX
  • TinyLinux (boot2docker)

Installation

The following command will install the REX-Ray client-server tool. If using CentOS, RedHat, Ubuntu, or Debian the necessary service manager is used to bootstrap the process on startup.

curl -sSL https://dl.bintray.com/emccode/rexray/install | sh -

Runtime - CLI

REX-Ray can be ran as an interactive CLI to perform volume management capabilities.

$ export REXRAY_STORAGEDRIVERS=ec2
$ export AWS_ACCESSKEY=access_key
$ export AWS_SECRETKEY=secret_key
$ rexray volume get

- providername: ec2
  instanceid: i-695bb6ab
  volumeid: vol-dedbadc3
  devicename: /dev/sda1
  region: us-west-1
  status: attached

Runtime - Service (Docker)

Additionally, it can be ran as a service to support Docker, Mesos, and other platforms that can communicate through HTTP/JSON.

$ export REXRAY_STORAGEDRIVERS=ec2
$ export AWS_ACCESSKEY=access_key
$ export AWS_SECRETKEY=secret_key
$ rexray service start
Starting REX-Ray...SUCCESS!

  The REX-Ray daemon is now running at PID XX. To
  shutdown the daemon execute the following command:

    sudo /usr/bin/rexray stop

$ docker run -ti --volume-driver=rexray -v test:/test busybox
$ df /test

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