Script to reset LXD LXC for Jammy Ubuntu 22.04 LTS

lxd-reset-jammy.sh

#!/usr/bin/env bash
# https://gist.github.com/ppartarr/018a3858bba8655dc421cc4589598d97
## sudo snap install lxd --classic
## this is only for jammy
## Harisfazillah Jamel 20221009

set -euo pipefail # -> http://redsymbol.net/articles/unofficial-bash-strict-mode/
# Reverse what lxd init does

function check_distro() {
    local distro=$(grep 'DISTRIB_CODENAME' /etc/lsb-release | cut -d '=' -f 2)
    echo "$distro"
}

DIST=$(check_distro)

function remove_containers() {
    # Hardcore: delete all containers
    for name in `lxc list -c n --format csv`; do
        lxc delete $name
    done

    # Delete all OS images
    for name in `lxc image list -c f --format csv`; do
        lxc image delete $name
    done
}

function remove_storage() {
    if [ "$DIST" == 'jammy' ]; then
        snap remove --purge lxd
    else
        #these don't work... Error: can't delete default profile.
        #lxc profile delete default
        #lxc storage delete default

        #unmount storage pool image before deleting storage pool folder
        umount /var/lib/lxd/storage-pools/default

        #remove lxc and bunch before removing storage pools
        apt remove --purge -y lxd lxc lxc-utils ebtables liblxc-common liblxc1 libpam-cgfs libuv1 lxcfs lxd-client uidmap xdelta3

        #remove storage pools...
        /bin/rm -rf /var/lib/lxd
        /bin/rm -rf /var/lib/lxc
        /bin/rm -rf /var/etc/lxc
        /bin/rm -rf /var/lib/lxd
        /bin/rm -rf /var/lib/lxdlx
    fi
}

function reinstall() {
    if [ "$DIST" == 'jammy' ]; then
            snap remove --purge lxd
    else
        #these don't work... Error: can't delete default profile.
        #lxc profile delete default
        #lxc storage delete default

        #unmount storage pool image before deleting storage pool folder
        umount /var/lib/lxd/storage-pools/default

        #remove lxc and bunch before removing storage pools
        apt remove --purge -y lxd lxc lxc-utils ebtables liblxc-common liblxc1 libpam-cgfs libuv1 lxcfs lxd-client uidmap xdelta3

        #remove storage pools...
        /bin/rm -rf /var/lib/lxd
        /bin/rm -rf /var/lib/lxc
        /bin/rm -rf /var/etc/lxc
        /bin/rm -rf /var/lib/lxd
        /bin/rm -rf /var/lib/lxdlx
    fi
}

function reinstall() {
    if [ "$DIST" == 'jammy' ]; then
        ###snap install lxd --channel=3.0/stable
	sudo snap install lxd --classic
    else
        #finally reinstall lxc, lxd
        apt install -y lxd lxc
    fi
}

echo "removing containers..."
remove_containers;
echo "removing storage..."
remove_storage;
echo "reinstalling lxd / lxc"
reinstall;

exit