#!/bin/bash function usage() { cat << EOF Usage: $0 [-hcCviIna] Prune Docker resources. If no option provided, defaults to -Cvn Options: -h Show this help and exits -c Remove stopped containers -C Remove all containers -v Remove unused volumes -i Remove build images -I Remove unused images -n Remove unused networks -a All of the above, equivalent of -CvIn EOF exit 0 } function add_opt() { local RESULT RESULT="$1" for o in "$@"; do if [ "$((RESULT & o))" == 0 ]; then RESULT="$((RESULT + o))" fi done echo "$RESULT" } if ! [ -w '/var/run/docker.sock' ] && [ "$EUID" != 0 ]; then command -v sudo > /dev/null && exec sudo -- "$0" "$@" command -v doas > /dev/null && exec doas -- "$0" "$@" fi c=1 # C=2 v=4 i=8 # I=16 n=32 # a="$((c + C + v + I + n))" CLEAN=0 while getopts hcCviIna o; do case "$o" in h) usage ;; c) CLEAN="$(add_opt "$CLEAN" "$c")" ;; C) CLEAN="$(add_opt "$CLEAN" "$c")" CON_OPT="-f" ;; v) CLEAN="$(add_opt "$CLEAN" "$v")" ;; i) CLEAN="$(add_opt "$CLEAN" "$i")" ;; I) CLEAN="$(add_opt "$CLEAN" "$i")" IMG_OPT='-a' ;; n) CLEAN="$(add_opt "$CLEAN" "$n")" ;; a) CLEAN="$(add_opt "$CLEAN" "$c" "$v" "$i" "$n")" CON_OPT="-f" IMG_OPT='-a' ;; *) exit 1 ;; esac done if [ "$CLEAN" == 0 ]; then CLEAN="$((c + v + n))" CON_OPT="-f" fi VALUES=( "$((c + i + v + n))" "$((c + i + n))" "$v" "$i" "$n" ) CON='container' PRUNE='prune -f' COMMANDS=( "docker system $PRUNE $IMG_OPT --volumes" "docker system $PRUNE $IMG_OPT" "docker volume $PRUNE" "docker image $PRUNE $IMG_OPT" "docker network $PRUNE" ) if [ "$((CLEAN & "$c"))" == "$c" ]; then docker "$CON" ls -aq | xargs docker "$CON" rm "$CON_OPT" 2> /dev/null fi for idx in "${!VALUES[@]}"; do mask="${VALUES[$idx]}" if [ "$((CLEAN & mask))" == "$mask" ]; then bash -c "${COMMANDS[$idx]}" CLEAN="$((CLEAN - mask))" fi done