I'm trying to use LXD to test Ansible deployments, but the container are too small. I read the documentation from linuxcontainers.org here, and I still cannot increase the size on the root disk of my LXD container :
I'm running these versions :
lsb_release -a [15:07:41]
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Codename: jammy
lxd --version [15:07:23]
5.8
zfs --version [15:07:35]
zfs-2.1.4-0ubuntu0.1
zfs-kmod-2.1.4-0ubuntu0.1
Before :
On the container :
root@node4:~# df -h
Filesystem Size Used Avail Use% Mounted on
default/containers/node4 2.6G 2.4G 267M 90% /
none 492K 4.0K 488K 1% /dev
udev 7.7G 0 7.7G 0% /dev/tty
tmpfs 100K 0 100K 0% /dev/lxd
tmpfs 100K 0 100K 0% /dev/.lxd-mounts
tmpfs 7.7G 0 7.7G 0% /dev/shm
tmpfs 1.6G 208K 1.6G 1% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
snapfuse 92M 92M 0 100% /snap/lxd/23991
snapfuse 64M 64M 0 100% /snap/core20/1695
snapfuse 92M 92M 0 100% /snap/lxd/24061
snapfuse 50M 50M 0 100% /snap/snapd/17883
On the host :
root:~/ # zpool list [14:53:08]
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
default 24.5G 9.74G 14.8G - - 12% 39% 1.00x ONLINE -
What I tried
sudo truncate -s +5G <LXD_lib_dir>/disks/<pool_name>.img
sudo zpool set autoexpand=on <pool_name>
sudo zpool online -e <pool_name> <device_ID>
sudo zpool set autoexpand=off <pool_name>
The ZFS pool was increased, but the default/containers/node4 disk on the container was not increased. I tried to restart the container, I created new container but the volume does not show 24.5G available.
lxc profile show default [14:26:01]
config: {}
description: Default LXD profile
devices:
eth0:
name: eth0
network: lxdbr1
type: nic
root:
path: /
pool: default
size: 20GB
type: disk
name: default
used_by:
- /1.0/instances/node1
- /1.0/instances/node2
- /1.0/instances/node3
- /1.0/instances/node6
- /1.0/instances/node5
- /1.0/instances/node4
