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linux Centos7 安装docker

linux Centos7 安装docker

作者: mytao4032 | 来源:发表于2021-11-22 22:51 被阅读0次

    使用在线脚本安装

    1, 获取脚本(脚本备份在下方)

    curl -fsSL get.docker.com -o get-docker.sh
    

    2, 运行脚本

    sh get-docker.sh
    

    3, 设置docker跟随系统启动

    systemctl enable docker
    

    4, 配置docker国内仓库加速地址

    vi /etc/docker/daemon.json
    
    4.1, 将下面内容加入文件中
    {
      "registry-mirrors": ["https://******.mirror.aliyuncs.com"]
    }
    

    这个地址来自阿里云


    5, 重启守护进程

    systemctl daemon-reload
    

    6, 重启docker服务

    systemctl restart docker
    

    7, 脚本备份:直接复制出来,命名为 get-docker.sh即可

    #!/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="93d2499759296ac1f9c510605fef85052a2c32be"
    
    # strip "v" prefix if present
    VERSION="${VERSION#v}"
    
    # The channel to install from:
    #   * nightly
    #   * test
    #   * stable
    #   * edge (deprecated)
    DEFAULT_CHANNEL_VALUE="stable"
    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
    
    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
    }
    
    # version_gte checks if the version specified in $VERSION is at least
    # the given CalVer (YY.MM) version. returns 0 (success) if $VERSION is either
    # unset (=latest) or newer or equal than the specified version. Returns 1 (fail)
    # otherwise.
    #
    # examples:
    #
    # VERSION=20.10
    # version_gte 20.10 // 0 (success)
    # version_gte 19.03 // 0 (success)
    # version_gte 21.10 // 1 (fail)
    version_gte() {
        if [ -z "$VERSION" ]; then
                return 0
        fi
        eval calver_compare "$VERSION" "$1"
    }
    
    # calver_compare compares two CalVer (YY.MM) version strings. returns 0 (success)
    # if version A is newer or equal than version B, or 1 (fail) otherwise. Patch
    # releases and pre-release (-alpha/-beta) are not taken into account
    #
    # examples:
    #
    # calver_compare 20.10 19.03 // 0 (success)
    # calver_compare 20.10 20.10 // 0 (success)
    # calver_compare 19.03 20.10 // 1 (fail)
    calver_compare() (
        set +x
    
        yy_a="$(echo "$1" | cut -d'.' -f1)"
        yy_b="$(echo "$2" | cut -d'.' -f1)"
        if [ "$yy_a" -lt "$yy_b" ]; then
            return 1
        fi
        if [ "$yy_a" -gt "$yy_b" ]; then
            return 0
        fi
        mm_a="$(echo "$1" | cut -d'.' -f2)"
        mm_b="$(echo "$2" | cut -d'.' -f2)"
        if [ "${mm_a#0}" -lt "${mm_b#0}" ]; then
            return 1
        fi
    
        return 0
    )
    
    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
        distro_version=$2
        echo
        printf "\033[91;1mDEPRECATION WARNING\033[0m\n"
        printf "    This Linux distribution (\033[1m%s %s\033[0m) reached end-of-life and is no longer supported by this script.\n" "$distro" "$distro_version"
        echo   "    No updates or security fixes will be released for this distribution, and users are recommended"
        echo   "    to upgrade to a currently maintained version of $distro."
        echo
        printf   "Press \033[1mCtrl+C\033[0m now to abort this script, or wait for the installation to continue."
        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"
    }
    
    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 version_gte "20.10"; 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
                        11)
                            dist_version="bullseye"
                        ;;
                        10)
                            dist_version="buster"
                        ;;
                        9)
                            dist_version="stretch"
                        ;;
                        8)
                            dist_version="jessie"
                        ;;
                    esac
                fi
            fi
        fi
    }
    
    do_install() {
        echo "# Executing docker install script, commit: $SCRIPT_COMMIT_SHA"
    
        if command_exists docker; then
            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
                again to update Docker, you can safely ignore this message.
    
                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
                    11)
                        dist_version="bullseye"
                    ;;
                    10)
                        dist_version="buster"
                    ;;
                    9)
                        dist_version="stretch"
                    ;;
                    8)
                        dist_version="jessie"
                    ;;
                esac
            ;;
    
            centos|rhel|sles)
                if [ -z "$dist_version" ] && [ -r /etc/os-release ]; then
                    dist_version="$(. /etc/os-release && echo "$VERSION_ID")"
                fi
            ;;
    
            *)
                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
    
        # Print deprecation warnings for distro versions that recently reached EOL,
        # but may still be commonly used (especially LTS versions).
        case "$lsb_dist.$dist_version" in
            debian.stretch|debian.jessie)
                deprecation_notice "$lsb_dist" "$dist_version"
                ;;
            raspbian.stretch|raspbian.jessie)
                deprecation_notice "$lsb_dist" "$dist_version"
                ;;
            ubuntu.xenial|ubuntu.trusty)
                deprecation_notice "$lsb_dist" "$dist_version"
                ;;
            fedora.*)
                if [ "$dist_version" -lt 33 ]; then
                    deprecation_notice "$lsb_dist" "$dist_version"
                fi
                ;;
        esac
    
        # Run setup for each distro accordingly
        case "$lsb_dist" in
            ubuntu|debian|raspbian)
                pre_reqs="apt-transport-https ca-certificates curl"
                if ! command -v gpg > /dev/null; then
                    pre_reqs="$pre_reqs gnupg"
                fi
                apt_repo="deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] $DOWNLOAD_URL/linux/$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\" | gpg --dearmor --yes -o /usr/share/keyrings/docker-archive-keyring.gpg"
                    $sh_c "echo \"$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: '$VERSION' not found amongst apt-cache madison results"
                            echo
                            exit 1
                        fi
                        if version_gte "18.09"; then
                                search_command="apt-cache madison 'docker-ce-cli' | grep '$pkg_pattern' | head -1 | awk '{\$1=\$1};1' | cut -d' ' -f 3"
                                echo "INFO: $search_command"
                                cli_pkg_version="=$($sh_c "$search_command")"
                        fi
                        pkg_version="=$pkg_version"
                    fi
                fi
                (
                    pkgs=""
                    if version_gte "18.09"; then
                            # older versions don't support a cli package
                            pkgs="$pkgs docker-ce-cli${cli_pkg_version%=}"
                    fi
                    if version_gte "20.10" && [ "$(uname -m)" = "x86_64" ]; then
                            # also install the latest version of the "docker scan" cli-plugin (only supported on x86 currently)
                            pkgs="$pkgs docker-scan-plugin"
                    fi
                    pkgs="$pkgs docker-ce${pkg_version%=}"
                    if ! is_dry_run; then
                        set -x
                    fi
                    $sh_c "DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends $pkgs >/dev/null"
                    if version_gte "20.10"; 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
                )
                echo_docker_as_nonroot
                exit 0
                ;;
            centos|fedora|rhel)
                if [ "$(uname -m)" != "s390x" ] && [ "$lsb_dist" = "rhel" ]; then
                    echo "Packages for RHEL are currently only available for s390x."
                    exit 1
                fi
                yum_repo="$DOWNLOAD_URL/linux/$lsb_dist/$REPO_FILE"
                if ! curl -Ifs "$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
                    $sh_c "$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 $pkg_manager list results"
                            echo
                            exit 1
                        fi
                        if version_gte "18.09"; then
                            # older versions don't support a cli package
                            search_command="$pkg_manager list --showduplicates 'docker-ce-cli' | grep '$pkg_pattern' | tail -1 | awk '{print \$2}'"
                            cli_pkg_version="$($sh_c "$search_command" | cut -d':' -f 2)"
                        fi
                        # 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"
                    if version_gte "20.10"; then
                        $sh_c "$pkg_manager install -y -q docker-ce-rootless-extras$pkg_version"
                    fi
                )
                echo_docker_as_nonroot
                exit 0
                ;;
            sles)
                if [ "$(uname -m)" != "s390x" ]; then
                    echo "Packages for SLES are currently only available for s390x"
                    exit 1
                fi
    
                sles_version="${dist_version##*.}"
                sles_repo="$DOWNLOAD_URL/linux/$lsb_dist/$REPO_FILE"
                opensuse_repo="https://download.opensuse.org/repositories/security:SELinux/SLE_15_SP$sles_version/security:SELinux.repo"
                if ! curl -Ifs "$sles_repo" > /dev/null; then
                    echo "Error: Unable to curl repository file $sles_repo, is it valid?"
                    exit 1
                fi
                pre_reqs="ca-certificates curl libseccomp2 awk"
                (
                    if ! is_dry_run; then
                        set -x
                    fi
                    $sh_c "zypper install -y $pre_reqs"
                    $sh_c "zypper addrepo $sles_repo"
                    if ! is_dry_run; then
                            cat >&2 <<-'EOF'
                            WARNING!!
                            openSUSE repository (https://download.opensuse.org/repositories/security:SELinux) will be enabled now.
                            Do you wish to continue?
                            You may press Ctrl+C now to abort this script.
                            EOF
                            ( set -x; sleep 30 )
                    fi
                    $sh_c "zypper addrepo $opensuse_repo"
                    $sh_c "zypper --gpg-auto-import-keys refresh"
                    $sh_c "zypper lr -d"
                )
                pkg_version=""
                if [ -n "$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")"
                        search_command="zypper search -s --match-exact 'docker-ce' | grep '$pkg_pattern' | tail -1 | awk '{print \$6}'"
                        pkg_version="$($sh_c "$search_command")"
                        echo "INFO: Searching repository for VERSION '$VERSION'"
                        echo "INFO: $search_command"
                        if [ -z "$pkg_version" ]; then
                            echo
                            echo "ERROR: '$VERSION' not found amongst zypper list results"
                            echo
                            exit 1
                        fi
                        search_command="zypper search -s --match-exact 'docker-ce-cli' | grep '$pkg_pattern' | tail -1 | awk '{print \$6}'"
                        # It's okay for cli_pkg_version to be blank, since older versions don't support a cli package
                        cli_pkg_version="$($sh_c "$search_command")"
                        pkg_version="-$pkg_version"
    
                        search_command="zypper search -s --match-exact 'docker-ce-rootless-extras' | grep '$pkg_pattern' | tail -1 | awk '{print \$6}'"
                        rootless_pkg_version="$($sh_c "$search_command")"
                        rootless_pkg_version="-$rootless_pkg_version"
                    fi
                fi
                (
                    if ! is_dry_run; then
                        set -x
                    fi
                    # install the correct cli version first
                    if [ -n "$cli_pkg_version" ]; then
                        $sh_c "zypper install -y  docker-ce-cli-$cli_pkg_version"
                    fi
                    $sh_c "zypper install -y docker-ce$pkg_version"
                    if version_gte "20.10"; then
                        $sh_c "zypper install -y docker-ce-rootless-extras$rootless_pkg_version"
                    fi
                )
                echo_docker_as_nonroot
                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
    

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          本文标题:linux Centos7 安装docker

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