LXD is a system container manager
With LXD you can run hundreds of containers of a variety of Linux distributions, apply resource limits, pass in directories, USB devices or GPUs and setup any network and storage you want.
LXD containers are lightweight, secure by default and a great alternative to running Linux virtual machines.
Run any Linux distribution you want
Pre-made images are available for Ubuntu, Alpine Linux, ArchLinux, CentOS, Debian, Fedora, Gentoo, OpenSUSE and more.
A full list of available images can be found here: https://images.linuxcontainers.org
Can't find the distribution you want? It's easy to make your own images too, either using our distrobuilder tool or by assembling your own image tarball by hand.
Containers at scale
LXD is network aware and all interactions go through a simple REST API, making it possible to remotely interact with containers on remote systems, copying and moving them as you wish.
Want to go big? LXD also has built-in clustering support, letting you turn dozens of servers into one big LXD server.
Configuration options
Supported options for the LXD snap (snap set lxd KEY=VALUE):
- ceph.builtin: Use snap-specific ceph configuration [default=false]
- criu.enable: Enable experimental live-migration support [default=false]
- daemon.debug: Increases logging to debug level [default=false]
- daemon.group: Group of users that can interact with LXD [default=lxd]
- daemon.preseed: A YAML configuration to feed `lxd init` on initial start
- lxcfs.pidfd: Start per-container process tracking [default=false]
- lxcfs.loadavg: Start tracking per-container load average [default=false]
- lxcfs.cfs: Consider CPU shares for CPU usage [default=false]
- openvswitch.builtin: Run a snap-specific OVS daemon [default=false]
- shiftfs.enable: Enable shiftfs support [default=auto]
Documentation: https://lxd.readthedocs.io
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap is available for CentOS 7.6+, and Red Hat Enterprise Linux 7.6+, from the Extra Packages for Enterprise Linux (EPEL) repository. The EPEL repository can be added to your system with the following command:
Snap can now be installed as follows:
Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:
To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install LXD, simply use the following command:
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.
