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LXD is a next generation system container manager. It offers a user experience similar to virtual machines but using Linux containers instead. It allows an easier management and deployment of LXC containers.

For now, Alpine Linux has a LXD package only for Edge so, first of all, you have to enable edge repositories.

Edit your /etc/apk/repositories:

 @edge http://dl-cdn.alpinelinux.org/alpine/edge/main
 @edge http://dl-cdn.alpinelinux.org/alpine/edge/community
 @edge http://dl-cdn.alpinelinux.org/alpine/edge/testing

Then, let's start installing lxd and dbus packages (dbus is needed for some containers as they refuse to start if unavailable)

 apk add lxd@edge lxcfs dbus

Then, let's set some options to be able to run the containers as unprivileged:

 echo "session optional pam_cgfs.so -c freezer,memory,name=systemd,unified" >> /etc/pam.d/system-login
 echo "lxc.idmap = u 0 100000 65536" >> /etc/lxc/default.conf
 echo "lxc.idmap = g 0 100000 65536" >> /etc/lxc/default.conf
 echo "root:100000:65536" >> /etc/subuid
 echo "root:100000:65536" >> /etc/subgid

If you plan to run systemd based Linux distributions (Debian, Ubuntu, etc.), add this to /etc/conf.d/lxc:


and enable both lxc and lxd at boot:

 rc-update add lxc
 rc-update add lxd
 rc-update add lxcfs

If you have problems, try to enable dbus:

 rc-update add dbus

Reboot and lxd should be working.