docker 卸载镜像_为什么删除docker镜像后依然占用本地空间？

#!/bin/bash

# Copyright 2017 Théo Chamley

# Permission is hereby granted, free of charge, to any person obtaining a copy of

# this software and associated documentation files (the "Software"), to deal in the Software

# without restriction, including without limitation the rights to use, copy, modify, merge,

# publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons

# to whom the Software is furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in all copies or

# substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING

# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

IMAGES=$@

echo "This will remove all your current containers and images except for:"

echo ${IMAGES}

read -p "Are you sure? [yes/NO] " -n 1 -r

echo # (optional) move to a new line

if [[ ! $REPLY =~ ^[Yy]$ ]]

then

exit 1

fi

TMP_DIR=$(mktemp -d)

pushd $TMP_DIR >/dev/null

open -a Docker

echo "=> Saving the specified images"

for image in ${IMAGES}; do

echo "==> Saving${image}"

tar=$(echo -n ${image} | base64)

docker save -o ${tar}.tar ${image}

echo "==> Done."

done

echo "=> Cleaning up"

echo -n "==> Quiting Docker"

osascript -e 'quit app "Docker"'

while docker info >/dev/null 2>&1; do

echo -n "."

sleep 1

done;

echo ""

echo "==> Removing Docker.qcow2 file"

rm ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/Docker.qcow2

echo "==> Launching Docker"

open -a Docker

echo -n "==> Waiting for Docker to start"

until docker info >/dev/null 2>&1; do

echo -n "."

sleep 1

done;

echo ""

echo "=> Done."

echo "=> Loading saved images"

for image in ${IMAGES}; do

echo "==> Loading${image}"

tar=$(echo -n ${image} | base64)

docker load -q -i ${tar}.tar || exit 1

echo "==> Done."

done

popd >/dev/null

rm -r ${TMP_DIR}