Red Hat, Inc. (NYSE: RHT), the world’s leading provider of open source solutions, and dotCloud, the company behind Docker, an open source project to pack, ship, and run any application as a lightweight container, today announced a technical collaboration based on next-generation Linux Containers technology to help drive the next evolution of OpenShift by Red Hat, Red Hat’s Platform-as-a-Service (PaaS) offering. The collaboration between the OpenShift, Red Hat Enterprise Linux, and Docker teams aims to combine the versatile capabilities of Docker with the security and stability of Red Hat Enterprise Linux Gears in OpenShift. OpenShift developers will benefit from a simpler, more secure, lightweight, and portable environment for applications.
The OpenShift platform is built on the solid foundation of Red Hat Enterprise Linux and provides secure, scalable, Linux Container-based multi-tenancy via Red Hat Enterprise Linux Gears. On this platform, OpenShift offers support for various programming languages, frameworks, Red Hat JBoss Middleware, databases, and other services, and also enables OpenShift customers, partners, and community members to integrate their own technology through OpenShift cartridges. These features combine to power the OpenShift Online public PaaS and bring OpenShift Enterprise private PaaS software to enterprise datacenters.
Docker is an open source engine that enables any application and its dependencies to be encapsulated as a lightweight container that will run in almost any Linux environment: bare metal, virtualized, public cloud, or private cloud. Docker’s user space library and utilities tool chain takes advantage of both Linux Container enhancements found in the modern Linux kernel and innovations found in the operating system such as the file system and namespace layers. Docker uses this foundation in the Linux kernel to provide lightweight runtime environments and offer a simple user experience, focused on getting the maximum benefit from the operating system in a highly portable manner.
Docker and OpenShift currently leverage the same building blocks to implement containers, such as Linux kernel namespaces and resource management with Control Groups (cGroups). Red Hat Enterprise Linux Gears in OpenShift use Security-Enhanced Linux (SELinux) access control policies to provide secure multi-tenancy and reduce the risk of malicious applications or kernel exploits.