详解如何干净的卸载docker的方法

先上服务器环境信息：

卸载的原因：

宿主机过段时间就磁盘100%了，导致continart异常退出，后来找了很多解决方案，才发现是安装docker的时候有个配置文件错误（正常的应该是|storage driver: overlay2）。

上干货：

①卸载

yum remove docker \\

docker-client \\

docker-client-latest \\

docker-common \\

docker-latest \\

docker-latest-logrotate \\

docker-logrotate \\

docker-selinux \\

docker-engine-selinux \\

docker-engine

rm -rf /etc/systemd/system/docker.service.d

rm -rf /var/lib/docker

rm -rf /var/run/docker

②安装

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#!/bin/sh

set -e

# this script is meant for quick & easy install via:

# $ curl -fssl get.docker.com -o get-docker.sh

# $ sh get-docker.sh

#

# for test builds (ie. release candidates):

# $ curl -fssl test.docker.com -o test-docker.sh

# $ sh test-docker.sh

#

# note: make sure to verify the contents of the script

# you downloaded matches the contents of install.sh

# located at https://github.com/docker/docker-install

# before executing.

#

# git commit from https://github.com/docker/docker-install when

# the script was uploaded (should only be modified by upload job):

script_commit_sha=36b78b2

# this value will automatically get changed for:

# * edge

# * test

# * experimental

default_channel_value="edge"

if [ -z "$channel" ]; then

channel=$default_channel_value

fi

default_download_url="https://download.docker.com"

if [ -z "$download_url" ]; then

download_url=$default_download_url

fi

default_repo_file="docker-ce.repo"

if [ -z "$repo_file" ]; then

repo_file="$default_repo_file"

fi

support_map="

x86_64-centos-7

x86_64-fedora-26

x86_64-fedora-27

x86_64-fedora-28

x86_64-debian-wheezy

x86_64-debian-jessie

x86_64-debian-stretch

x86_64-debian-buster

x86_64-ubuntu-trusty

x86_64-ubuntu-xenial

x86_64-ubuntu-bionic

x86_64-ubuntu-artful

s390x-ubuntu-xenial

s390x-ubuntu-bionic

s390x-ubuntu-artful

ppc64le-ubuntu-xenial

ppc64le-ubuntu-bionic

ppc64le-ubuntu-artful

aarch64-ubuntu-xenial

aarch64-ubuntu-bionic

aarch64-debian-jessie

aarch64-debian-stretch

aarch64-debian-buster

aarch64-fedora-26

aarch64-fedora-27

aarch64-fedora-28

aarch64-centos-7

armv6l-raspbian-jessie

armv7l-raspbian-jessie

armv6l-raspbian-stretch

armv7l-raspbian-stretch

armv7l-debian-jessie

armv7l-debian-stretch

armv7l-debian-buster

armv7l-ubuntu-trusty

armv7l-ubuntu-xenial

armv7l-ubuntu-bionic

armv7l-ubuntu-artful

"

mirror=''

dry_run=${dry_run:-}

while [ $# -gt 0 ]; do

case "$1" in

--mirror)

mirror="$2"

shift

;;

--dry-run)

dry_run=1

;;

--*)

echo "illegal option $1"

;;

esac

shift $(( $ # > 0 ? 1 : 0 ))

done

case "$mirror" in

aliyun)

download_url="https://mirrors.aliyun.com/docker-ce"

;;

azurechinacloud)

download_url="https://mirror.azure.cn/docker-ce"

;;

esac

command_exists() {

command -v "$@" > /dev/null 2>&1

}

is_dry_run() {

if [ -z "$dry_run" ]; then

return 1

else

return 0

fi

}

deprecation_notice() {

distro=$1

date=$2

echo

echo "deprecation warning:"

echo " the distribution, $distro, will no longer be supported in this script as of $date."

echo " if you feel this is a mistake please submit an issue at https://github.com/docker/docker-install/issues/new"

echo

sleep 10

}

get_distribution() {

lsb_dist=""

# every system that we officially support has /etc/os-release

if [ -r /etc/os-release ]; then

lsb_dist="$(. /etc/os-release && echo "$id")"

fi

# returning an empty string here should be alright since the

# case statements don't act unless you provide an actual value

echo "$lsb_dist"

}

add_debian_backport_repo() {

debian_version="$1"

backports="deb http://ftp.debian.org/debian $debian_version-backports main"

if ! grep -fxq "$backports" /etc/apt/sources.list; then

(set -x; $sh_c "echo \\"$backports\\" >> /etc/apt/sources.list")

fi

}

echo_docker_as_nonroot() {

if is_dry_run; then

return

fi

if command_exists docker && [ -e /var/run/docker.sock ]; then

(

set -x

$sh_c 'docker version'

) || true

fi

your_user=your-user

[ "$user" != 'root' ] && your_user="$user"

# intentionally mixed spaces and tabs here -- tabs are stripped by "<<-eof", spaces are kept in the output

echo "if you would like to use docker as a non-root user, you should now consider"

echo "adding your user to the \\"docker\\" group with something like:"

echo

echo " sudo usermod -ag docker $your_user"

echo

echo "remember that you will have to log out and back in for this to take effect!"

echo

echo "warning: adding a user to the \\"docker\\" group will grant the ability to run"

echo " containers which can be used to obtain root privileges on the"

echo " docker host."

echo " refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface"

echo " for more information."

}

# check if this is a forked linux distro

check_forked() {

# check for lsb_release command existence, it usually exists in forked distros

if command_exists lsb_release; then

# check if the `-u` option is supported

set +e

lsb_release -a -u > /dev/null 2>&1

lsb_release_exit_code=$?

set -e

# check if the command has exited successfully, it means we're in a forked distro

if [ "$lsb_release_exit_code" = "0" ]; then

# print info about current distro

cat <<-eof

you're using '$lsb_dist' version '$dist_version'.

eof

# get the upstream release info

lsb_dist=$(lsb_release -a -u 2>&1 | tr '[:upper:]' '[:lower:]' | grep -e 'id' | cut -d ':' -f 2 | tr -d '[:space:]')

dist_version=$(lsb_release -a -u 2>&1 | tr '[:upper:]' '[:lower:]' | grep -e 'codename' | cut -d ':' -f 2 | tr -d '[:space:]')

# print info about upstream distro

cat <<-eof

upstream release is '$lsb_dist' version '$dist_version'.

eof

else

if [ -r /etc/debian_version ] && [ "$lsb_dist" != "ubuntu" ] && [ "$lsb_dist" != "raspbian" ]; then

if [ "$lsb_dist" = "osmc" ]; then

# osmc runs raspbian

lsb_dist=raspbian

else

# we're debian and don't even know it!

lsb_dist=debian

fi

dist_version="$(sed 's/\\/.*//' /etc/debian_version | sed 's/\\..*//')"

case "$dist_version" in

9)

dist_version="stretch"

;;

8|'kali linux 2')

dist_version="jessie"

;;

7)

dist_version="wheezy"

;;

esac

fi

}

semverparse() {

major="${1%%.*}"

minor="${1#$major.}"

minor="${minor%%.*}"

patch="${1#$major.$minor.}"

patch="${patch%%[-.]*}"

}

ee_notice() {

echo

echo " warning: $1 is now only supported by docker ee"

echo " check https://store.docker.com for information on docker ee"

echo

}

do_install() {

echo "# executing docker install script, commit: $script_commit_sha"

if command_exists docker; then

docker_version="$(docker -v | cut -d ' ' -f3 | cut -d ',' -f1)"

major_w=1

minor_w=10

semverparse "$docker_version"

shouldwarn=0

if [ "$major" -lt "$major_w" ]; then

shouldwarn=1

fi

if [ "$major" -le "$major_w" ] && [ "$minor" -lt "$minor_w" ]; then

shouldwarn=1

fi

cat >&2 <<-'eof'

warning: the "docker" command appears to already exist on this system.

if you already have docker installed, this script can cause trouble, which is

why we're displaying this warning and provide the opportunity to cancel the

installation.

if you installed the current docker package using this script and are using it

eof

if [ $shouldwarn -eq 1 ]; then

cat >&2 <<-'eof'

again to update docker, we urge you to migrate your image store before upgrading

to v1.10+.

you can find instructions for this here:

https://github.com/docker/docker/wiki/engine-v1.10.0-content-addressability-migration

eof

else

cat >&2 <<-'eof'

again to update docker, you can safely ignore this message.

eof

fi

cat >&2 <<-'eof'

you may press ctrl+c now to abort this script.

eof

( set -x; sleep 20 )

fi

user="$(id -un 2>/dev/null || true)"

sh_c='sh -c'

if [ "$user" != 'root' ]; then

if command_exists sudo; then

sh_c='sudo -e sh -c'

elif command_exists su; then

sh_c='su -c'

else

cat >&2 <<-'eof'

error: this installer needs the ability to run commands as root.

we are unable to find either "sudo" or "su" available to make this happen.

eof

exit 1

fi

if is_dry_run; then

sh_c="echo"

fi

# perform some very rudimentary platform detection

lsb_dist=$( get_distribution )

lsb_dist="$(echo "$lsb_dist" | tr '[:upper:]' '[:lower:]')"

case "$lsb_dist" in

ubuntu)

if command_exists lsb_release; then

dist_version="$(lsb_release --codename | cut -f2)"

fi

if [ -z "$dist_version" ] && [ -r /etc/lsb-release ]; then

dist_version="$(. /etc/lsb-release && echo "$distrib_codename")"

fi

;;

debian|raspbian)

dist_version="$(sed 's/\\/.*//' /etc/debian_version | sed 's/\\..*//')"

case "$dist_version" in

9)

dist_version="stretch"

;;

8)

dist_version="jessie"

;;

7)

dist_version="wheezy"

;;

esac

;;

centos)

if [ -z "$dist_version" ] && [ -r /etc/os-release ]; then

dist_version="$(. /etc/os-release && echo "$version_id")"

fi

;;

rhel|ol|sles)

ee_notice "$lsb_dist"

exit 1

;;

*)

if command_exists lsb_release; then

dist_version="$(lsb_release --release | cut -f2)"

fi

if [ -z "$dist_version" ] && [ -r /etc/os-release ]; then

dist_version="$(. /etc/os-release && echo "$version_id")"

fi

;;

esac

# check if this is a forked linux distro

check_forked

# check if we actually support this configuration

if ! echo "$support_map" | grep "$(uname -m)-$lsb_dist-$dist_version" >/dev/null; then

cat >&2 <<-'eof'

either your platform is not easily detectable or is not supported by this

installer script.

please visit the following url for more detailed installation instructions:

https://docs.docker.com/engine/installation/

eof

exit 1

fi

# run setup for each distro accordingly

case "$lsb_dist" in

ubuntu|debian|raspbian)

详解如何干净的卸载docker的方法

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