Enalbe docker in LXD5

lxd lxc docker ubuntu

Create LXD Container

NOTE: Docker will not run will with the default zfs file system

  • Create a new btrfs storage pool called docker. The Btrfs is one of the storeage pools Docker support natively.
lxc storage create docker btrfs
  • Create a new LXD instance and call it demo.
lxc launch images:ubuntu/22.04 demo
  • Create a new storage volume on the docker storage pool.
lxc storage volume create docker docker-vol-demo
  • Attach the volume to the demo container
lxc config device add demo docker disk pool=docker source=docker-vol-demo path=/var/lib/docker

# if you install docker with snap, the volume path should be /snap/docker. Use the one as below.
lxc config device add demo docker disk pool=docker source=docker-vol-demo path=/snap/docker
  • Allow nested containers required for Docker
lxc config set demo security.nesting=true security.syscalls.intercept.mknod=true security.syscalls.intercept.setxattr=true
  • Apply these chages by restarting the container.
lxc restart demo

Install and verfy docker.

Install Docker on Ubuntu

Reference

How to run Docker inside LXD containers

Written on November 7, 2023