Docker Nuke -> it's the only way to be sure!

docker_nuke.sh

#!/usr/bin/env bash

docker_nuke() {
    local COLOR_RED="\033[0;31m"
    local COLOR_GREEN="\033[0;32m"
    local COLOR_CYAN="\033[0;36m"
    
    local containers="$(docker ps -aq)"
    local images="$(docker images -q)"
    local success="$COLOR_GREEN✓"
    local failure="$COLOR_RED✘"
    local result_skip="$COLOR_CYAN⌀"

    # Stop and remove all containers
    if [ ! -z "$containers" ]; then
        echo "Stopping all runnning containers..."
        (docker stop $(docker ps -aq) 2>&1 > /dev/null && echo " $success") || echo " $failure"

        echo "Removing all containers..."
        (docker rm $(docker ps -aq) && echo " $success") || echo " $failure"
    fi

    # Remove all images
    if [ ! -z "$images" ]; then
        echo "Removing all images..."
        (docker rmi $(docker images -q) 2>&1 > /dev/null && echo " $success") || echo " $failure"
    fi
}