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OSTree

Project Atomic, a Red Hat sponsored project, features an interesting new update system for RPM-based Linux operating systems called OSTree (rpm-ostree) which has been developed by Colin Walters over the last couple of years. Evidently OSTree supports atomic updates to an OS although I am not sure how that actually works because there is a lot of marketing hype and buzz words associated with Project Atomic including Docker containers. In the default model, the RPMs are composed on a server into an OSTree repository, and client systems can replicate in an image-like fashion, including incremental updates. However, unlike traditional Linus

My thoughts on Docker, i.e. Linux Containers

Docker is an open-source project, started by Solomon Hykes of dotCloud, that automates the packaging of an application and its dependencies, and the deployment of such applications inside software containers on a Linux kernel. Currently the technology is being strongly pushed by the Linux community and especially by Red Hat. Unlike hypervisor-based virtual machines, a Docker container does not include the kernel or all the operating system libraries, shells and utilities. Instead, it relies on functionality in the Linux kernel (cgroups, LXC, etc.) to provide resource and namespace isolation. In many ways this is similar to the older Oracle Solaris