Reset LXD

lxd-reset.sh

#!/usr/bin/env bash

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" == 'focal' ]; 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" == 'focal' ]; 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" == 'focal' ]; then
        snap install lxd --channel=3.0/stable
    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;