High Level APIs for Linux Containers

The DotCloud company has developed and laid out in open access the Docker system - high-level interfaces for accessing Linux-containers (LXC). It is an ideal tool for working with containers on any x64 server, for deploying large-scale web installations, database clusters, private PaaS, etc.

LXC is an operating system-level virtualization system for running multiple, isolated Linux instances on a single computer. LXC does not use virtual machines, but creates a virtual environment with its own process space and network stack. All LXC instances use the same OS kernel instance.

Key features of Docker

• File system isolation: each process container operates as a completely separate root file system.
• Resource isolation: system resources like CPU and memory can be allocated differently for each process container using cgroups
• Network Isolation: Each process container works in its own namespace, with a virtual interface and its own IP address.

• Copy on write: root file systems are created by copy on write, which allows you to deploy containers extremely quickly without using much memory or disk space.
• Logging: standard streams (stdout / stderr / stdin) of each process container are logged and saved for later analysis.
• Change management: changes made to the file system of one container can be applied to a new image and reused for other containers. No longer need templates and manual configuration.
• Interactive console: Docker can connect pseudo-tty and standard input for any container

Docker is built on the AUFS file system, which has a copy-on-write function, and the Go programming language.
')


Docker installation instructions for Ubuntu
Docker installation instructions for Windows (need Virtualbox, Vagrant and Git, Ubuntu is installed on the virtual machine)
Github Code
Documentation