openstack/openstack-ansible
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openstack-ansible/doc/source/install-guide/overview-lxc.rst
Matt Thompson 06708191d6 Install Guide Cleanup 
This commit does the following:

- sets all shell prompts in code-blocks to the root prompt
- uses shell-session code-block since the shell prompt was being
  treated as a comment
- links configure-aodh.rst in configure.rst (running tox was
  complaining that this file wasn't being linked anywhere)
- other minor cleanup

Change-Id: I9e3ac8bb0cabd1cc17952cfd765dbb0d8f7b6fa2
2015-10-21 07:25:25 +01:00

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Home OpenStack-Ansible Installation Guide

Linux Containers (LXC)

Containers provide operating-system level virtualization by enhancing the concept of chroot environments, which isolate resources and file systems for a particular group of processes without the overhead and complexity of virtual machines. They access the same kernel, devices, and file systems on the underlying host and provide a thin operational layer built around a set of rules.

The Linux Containers (LXC) project implements operating system level virtualization on Linux using kernel namespaces and includes the following features:

  • Resource isolation including CPU, memory, block I/O, and network using cgroups.
  • Selective connectivity to physical and virtual network devices on the underlying physical host.
  • Support for a variety of backing stores including LVM.
  • Built on a foundation of stable Linux technologies with an active development and support community.

Useful commands:

  • List containers and summary information such as operational state and network configuration:

    # lxc-ls --fancy

  • Show container details including operational state, resource utilization, and veth pairs:

    # lxc-info --name container_name

  • Start a container:

    # lxc-start --name container_name

  • Attach to a container:

    # lxc-attach --name container_name

  • Stop a container:

    # lxc-stop --name container_name