Docker安装

curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
or
curl https://releases.rancher.com/install-docker/20.10.sh | sh

rancher.sh文件代码 记录下

#!/bin/sh
set -e
# Docker CE for Linux installation script
#
# See https://docs.docker.com/engine/install/ for the installation steps.
#
# This script is meant for quick & easy install via:
#   $ curl -fsSL https://get.docker.com -o get-docker.sh
#   $ sh get-docker.sh
#
# For test builds (ie. release candidates):
#   $ curl -fsSL https://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="7cae5f8b0decc17d6571f9f52eb840fbc13b2737"

CHANNEL="stable"
DOWNLOAD_URL="https://download.docker.com"
REPO_FILE="docker-ce.repo"
VERSION=20.10.7
DIND_TEST_WAIT=${DIND_TEST_WAIT:-3s}  # Wait time until docker start at dind test env

# Issue https://github.com/rancher/rancher/issues/29246
adjust_repo_releasever() {
	DOWNLOAD_URL="https://download.docker.com"
	case $1 in
	7*)
		releasever=7
		;;
	8*)
		releasever=8
		;;
	*)
		# fedora, or unsupported
		return
		;;
	esac

	for channel in "stable" "test" "nightly"; do
		$sh_c "$config_manager --setopt=docker-ce-${channel}.baseurl=${DOWNLOAD_URL}/linux/centos/${releasever}/\\\$basearch/${channel} --save";
		$sh_c "$config_manager --setopt=docker-ce-${channel}-debuginfo.baseurl=${DOWNLOAD_URL}/linux/centos/${releasever}/debug-\\\$basearch/${channel} --save";
		$sh_c "$config_manager --setopt=docker-ce-${channel}-source.baseurl=${DOWNLOAD_URL}/linux/centos/${releasever}/source/${channel} --save";
	done
}

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

# docker-ce-rootless-extras is packaged since Docker 20.10.0
has_rootless_extras="1"
if echo "$VERSION" | grep -q '^1'; then
	has_rootless_extras=
fi

start_docker() {
	if [ ! -z $DIND_TEST ]; then
		# Starting dockerd manually due to dind env is not using systemd
		dockerd &
		sleep $DIND_TEST_WAIT
	elif [ -d '/run/systemd/system' ] ; then
		$sh_c 'systemctl start docker'
	else
		$sh_c 'service docker start'
	fi
}

command_exists() {
	command -v "$@" > /dev/null 2>&1
}

is_dry_run() {
	if [ -z "$DRY_RUN" ]; then
		return 1
	else
		return 0
	fi
}

is_wsl() {
	case "$(uname -r)" in
	*microsoft* ) true ;; # WSL 2
	*Microsoft* ) true ;; # WSL 1
	* ) false;;
	esac
}

is_darwin() {
	case "$(uname -s)" in
	*darwin* ) true ;;
	*Darwin* ) true ;;
	* ) false;;
	esac
}

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

	# intentionally mixed spaces and tabs here -- tabs are stripped by "<<-EOF", spaces are kept in the output
	echo
	echo "================================================================================"
	echo
	if [ -n "$has_rootless_extras" ]; then
		echo "To run Docker as a non-privileged user, consider setting up the"
		echo "Docker daemon in rootless mode for your user:"
		echo
		echo "    dockerd-rootless-setuptool.sh install"
		echo
		echo "Visit https://docs.docker.com/go/rootless/ to learn about rootless mode."
		echo
	fi
	echo
	echo "To run the Docker daemon as a fully privileged service, but granting non-root"
	echo "users access, refer to https://docs.docker.com/go/daemon-access/"
	echo
	echo "WARNING: Access to the remote API on a privileged Docker daemon is equivalent"
	echo "         to root access on the host. Refer to the 'Docker daemon attack surface'"
	echo "         documentation for details: https://docs.docker.com/go/attack-surface/"
	echo
	echo "================================================================================"
	echo
}

# 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
					10)
						dist_version="buster"
					;;
					9)
						dist_version="stretch"
					;;
					8|'Kali Linux 2')
						dist_version="jessie"
					;;
				esac
			fi
		fi
	fi
}

semverParse() {
	major="${1%%.*}"
	minor="${1#$major.}"
	minor="${minor%%.*}"
	patch="${1#$major.$minor.}"
	patch="${patch%%[-.]*}"
}

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
	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:]')"

	if is_wsl; then
		echo
		echo "WSL DETECTED: We recommend using Docker Desktop for Windows."
		echo "Please get Docker Desktop from https://www.docker.com/products/docker-desktop"
		echo
		cat >&2 <<-'EOF'

			You may press Ctrl+C now to abort this script.
		EOF
		( set -x; sleep 20 )
	fi

	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
				10)
					dist_version="buster"
				;;
				9)
					dist_version="stretch"
				;;
				8)
					dist_version="jessie"
				;;
			esac
		;;

		centos|rhel)
			if [ -z "$dist_version" ] && [ -r /etc/os-release ]; then
				dist_version="$(. /etc/os-release && echo "$VERSION_ID")"
			fi
		;;

		oracleserver|ol)
			lsb_dist="ol"
			# need to switch lsb_dist to match yum repo URL
			dist_version="$(rpm -q --whatprovides redhat-release --queryformat "%{VERSION}\n" | sed 's/\/.*//' | sed 's/\..*//' | sed 's/Server*//')"
		;;

		*)
			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

	# Run setup for each distro accordingly
	case "$lsb_dist" in
		ubuntu|debian|raspbian)
			pre_reqs="apt-transport-https ca-certificates curl"
			if [ "$lsb_dist" = "debian" ]; then
				# libseccomp2 does not exist for debian jessie main repos for aarch64
				if [ "$(uname -m)" = "aarch64" ] && [ "$dist_version" = "jessie" ]; then
					add_debian_backport_repo "$dist_version"
				fi
			fi

			if ! command -v gpg > /dev/null; then
				pre_reqs="$pre_reqs gnupg"
			fi
			apt_repo="deb [arch=$(dpkg --print-architecture)] $DOWNLOAD_URL/linux/$lsb_dist $dist_version $CHANNEL"
			(
				if ! is_dry_run; then
					set -x
				fi
				$sh_c 'apt-get update -qq >/dev/null'
				$sh_c "DEBIAN_FRONTEND=noninteractive apt-get install -y -qq $pre_reqs >/dev/null"
				$sh_c "curl -fsSL \"$DOWNLOAD_URL/linux/$lsb_dist/gpg\" | apt-key add -qq - >/dev/null"
				$sh_c "echo \"$apt_repo\" > /etc/apt/sources.list.d/docker.list"
				$sh_c 'apt-get update -qq >/dev/null'
			)
			pkg_version=""
			if [ -n "$VERSION" ]; then
				if is_dry_run; then
					echo "# WARNING: VERSION pinning is not supported in DRY_RUN"
				else
					# Will work for incomplete versions IE (17.12), but may not actually grab the "latest" if in the test channel
					pkg_pattern="$(echo "$VERSION" | sed "s/-ce-/~ce~.*/g" | sed "s/-/.*/g").*-0~$lsb_dist"
					search_command="apt-cache madison 'docker-ce' | grep '$pkg_pattern' | head -1 | awk '{\$1=\$1};1' | cut -d' ' -f 3"
					pkg_version="$($sh_c "$search_command")"
					echo "INFO: Searching repository for VERSION '$VERSION'"
					echo "INFO: $search_command"
					if [ -z "$pkg_version" ]; then
						echo
						echo "ERROR: '$VERSION' not found amongst apt-cache madison results"
						echo
						exit 1
					fi
					search_command="apt-cache madison 'docker-ce-cli' | grep '$pkg_pattern' | head -1 | awk '{\$1=\$1};1' | cut -d' ' -f 3"
					# Don't insert an = for cli_pkg_version, we'll just include it later
					cli_pkg_version="$($sh_c "$search_command")"
					pkg_version="=$pkg_version"
				fi
			fi
			(
				if ! is_dry_run; then
					set -x
				fi
				if [ -n "$cli_pkg_version" ]; then
					$sh_c "apt-get install -y -qq --no-install-recommends docker-ce-cli=$cli_pkg_version >/dev/null"
				fi
				$sh_c "apt-get install -y -qq --no-install-recommends docker-ce$pkg_version >/dev/null"
				# shellcheck disable=SC2030
				if [ -n "$has_rootless_extras" ]; then
					# Install docker-ce-rootless-extras without "--no-install-recommends", so as to install slirp4netns when available
					$sh_c "DEBIAN_FRONTEND=noninteractive apt-get install -y -qq docker-ce-rootless-extras$pkg_version >/dev/null"
				fi
                                start_docker
			)
			echo_docker_as_nonroot
			exit 0
			;;
		centos|fedora|rhel|ol)
                        # installing centos packages
			yum_repo="$DOWNLOAD_URL/linux/centos/$REPO_FILE"
			if ! curl -Ifs "$yum_repo" > /dev/null; then
				echo "Error: Unable to curl repository file $yum_repo, is it valid?"
				exit 1
			fi
			if [ "$lsb_dist" = "fedora" ]; then
				pkg_manager="dnf"
				config_manager="dnf config-manager"
				enable_channel_flag="--set-enabled"
				disable_channel_flag="--set-disabled"
				pre_reqs="dnf-plugins-core"
				pkg_suffix="fc$dist_version"
			else
				pkg_manager="yum"
				config_manager="yum-config-manager"
				enable_channel_flag="--enable"
				disable_channel_flag="--disable"
				pre_reqs="yum-utils"
				pkg_suffix="el"
			fi
			(
				if ! is_dry_run; then
					set -x
				fi
				$sh_c "$pkg_manager install -y -q $pre_reqs"
				$sh_c "$config_manager --add-repo $yum_repo"

				if [ "$CHANNEL" != "stable" ]; then
					$sh_c "$config_manager $disable_channel_flag docker-ce-*"
					$sh_c "$config_manager $enable_channel_flag docker-ce-$CHANNEL"
				fi
				if [ "$lsb_dist" = "rhel" ] || [ "$lsb_dist" = "ol" ]; then
					adjust_repo_releasever "$dist_version"
					# Add extra repo for version 7.x
					if [[ "$dist_version" =~ "7." ]] || [ "$dist_version" == "7" ] ; then
						if [ "$lsb_dist" = "rhel" ]; then
							$sh_c "$config_manager $enable_channel_flag rhui-REGION-rhel-server-extras"
							$sh_c "$config_manager $enable_channel_flag rhui-rhel-7-server-rhui-extras-rpms"
							$sh_c "$config_manager $enable_channel_flag rhui-rhel-7-for-arm-64-extras-rhui-rpms"
							$sh_c "$config_manager $enable_channel_flag rhel-7-server-rhui-extras-rpms"
							$sh_c "$config_manager $enable_channel_flag rhel-7-server-extras-rpms"
						else
							$sh_c "$config_manager $enable_channel_flag ol7_addons"
							# Adding OL7 developer repo if doesn't exist
							if [ "$(yum repolist | grep yum.oracle.com_repo_OracleLinux_OL7_developer > /dev/null || echo add)" == "add" ]; then
								$sh_c "$config_manager --add-repo https://yum.oracle.com/repo/OracleLinux/OL7/developer/x86_64"
							fi
						fi
					fi
				fi
				$sh_c "$pkg_manager makecache"
			)
			pkg_version=""
			if [ -n "$VERSION" ]; then
				if is_dry_run; then
					echo "# WARNING: VERSION pinning is not supported in DRY_RUN"
				else
					pkg_pattern="$(echo "$VERSION" | sed "s/-ce-/\\\\.ce.*/g" | sed "s/-/.*/g").*$pkg_suffix"
					search_command="$pkg_manager list --showduplicates 'docker-ce' | grep '$pkg_pattern' | tail -1 | awk '{print \$2}'"
					pkg_version="$($sh_c "$search_command")"
					echo "INFO: Searching repository for VERSION '$VERSION'"
					echo "INFO: $search_command"
					if [ -z "$pkg_version" ]; then
						echo
						echo "ERROR: '$VERSION' not found amongst $pkg_manager list results"
						echo
						exit 1
					fi
					search_command="$pkg_manager list --showduplicates 'docker-ce-cli' | grep '$pkg_pattern' | tail -1 | awk '{print \$2}'"
					# It's okay for cli_pkg_version to be blank, since older versions don't support a cli package
					cli_pkg_version="$($sh_c "$search_command" | cut -d':' -f 2)"
					# Cut out the epoch and prefix with a '-'
					pkg_version="-$(echo "$pkg_version" | cut -d':' -f 2)"
				fi
			fi
			(
				if ! is_dry_run; then
					set -x
				fi
				# install the correct cli version first
				if [ -n "$cli_pkg_version" ]; then
					$sh_c "$pkg_manager install -y -q docker-ce-cli-$cli_pkg_version"
				fi
				$sh_c "$pkg_manager install -y -q docker-ce$pkg_version"
				# shellcheck disable=SC2031
				if [ -n "$has_rootless_extras" ]; then
					$sh_c "$pkg_manager install -y -q docker-ce-rootless-extras$pkg_version"
				fi
                                if ! command_exists iptables; then
                                        $sh_c "$pkg_manager install -y -q iptables"
                                fi
                                start_docker
			)
			echo_docker_as_nonroot
			exit 0
			;;
                rancheros)
                        (
                        set -x
                        $sh_c "sleep 3;ros engine list --update"
                        engine_version="$(sudo ros engine list | awk '{print $2}' | grep ${docker_version} | tail -n 1)"
                        if [ "$engine_version" != "" ]; then
                                $sh_c "ros engine switch -f $engine_version"
                        fi
                        )
                        exit 0
                        ;;
		*)
			if [ -z "$lsb_dist" ]; then
				if is_darwin; then
					echo
					echo "ERROR: Unsupported operating system 'macOS'"
					echo "Please get Docker Desktop from https://www.docker.com/products/docker-desktop"
					echo
					exit 1
				fi
			fi
			echo
			echo "ERROR: Unsupported distribution '$lsb_dist'"
			echo
			exit 1
			;;
	esac
	exit 1
}

# wrapped up in a function so that we have some protection against only getting
# half the file during "curl | sh"
do_install

sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2

设置阿里云镜像

sudo yum-config-manager \
    --add-repo \
    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

安装docker-ce

sudo yum install docker-ce docker-ce-cli containerd.io

启动 docker

sudo systemctl start docker

创建一个helloWorld

sudo docker run hello-world

查看是否创建成功

docker images

删除docker

yum remove docker-ce

删除镜像、容器、配置文件内容等

rm -rf /var/lib/docker

删除容器

docker image prune -f -a

开始安装 docker-compose 官方链接 (opens new window)

开始安装 这个东西看心情，有的时候速度特别快，有的时候.....

 sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

设置一个权限

sudo chmod +x /usr/local/bin/docker-compose

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

查看是否成功

docker-compose --version

#启动
systemctl start docker

#重启docker
systemctl restart docker


#停止docker
systemctl stop docker
or
systemctl stop docker.socket

#设置开机启动
systemctl enable docker.service
or
systemctl enable docker

#查看docker服务状态
systemctl status docker

这里介绍个站Play with Docker (opens new window)