在centos上安裝過docker的都知道句占，yum install docker 诬烹，這種方式安裝的docker，最新版的centos系統(tǒng)上甚纲，版本應(yīng)該是1.13.1，而目前最新版的docker到了18.03.0了朦前。那么怎么安裝最新版的docker-ce呢介杆？

1、系統(tǒng)要求

Linux操作系統(tǒng)內(nèi)核要不低于3.10韭寸，并且要支持systemd春哨。

2、下載最新版的docker

Docker官網(wǎng)下載地址：https://download.docker.com/linux/static/stable/x86_64/

上面列出了docker-ce版本恩伺，根據(jù)自己需要下載對應(yīng)版本的docker-ce.
Docker官網(wǎng)下載地址：https://download.docker.com/linux/static/stable/x86_64/

image.png

我下載的是18.03.0版本赴背。

3、安裝部署方式說明

整個安裝部署過程大致可分為將介質(zhì)解壓出docker目錄、將可執(zhí)行文件copy到/usr/bin目錄并設(shè)置權(quán)限凰荚、設(shè)置docker的systemd設(shè)定文件燃观、設(shè)定docker服務(wù)開機啟動等。
方便的是便瑟，已經(jīng)有志愿者將所有安裝命令整理成一個腳本缆毁，直接下載下來執(zhí)行即可。
腳本下載地址：

https://github.com/liumiaocn/easypack/blob/master/docker/install-docker.sh

#!/bin/sh

usage(){
  echo "Usage: $0 FILE_NAME_DOCKER_CE_TAR_GZ"
  echo "       $0 docker-18.03.0--ce.tgz"
  echo "Get docker-ce binary from: https://download.docker.com/linux/static/stable/x86_64/"
  echo "eg: wget https://download.docker.com/linux/static/stable/x86_64/docker-18.03.0--ce.tgz"
  echo ""
}
SYSTEMDDIR=/usr/lib/systemd/system
SERVICEFILE=docker.service
DOCKERDIR=/usr/bin
DOCKERBIN=docker
SERVICENAME=docker

if [ $# -ne 1 ]; then
  usage
  exit 1
else
  FILETARGZ="$1"
fi

if [ ! -f ${FILETARGZ} ]; then
  echo "Docker binary tgz files does not exist, please check it"
  echo "Get docker-ce binary from: https://download.docker.com/linux/static/stable/x86_64/"
  echo "eg: wget https://download.docker.com/linux/static/stable/x86_64/docker-18.03.0--ce.tgz"
  exit 1
fi

echo "##unzip : tar xvpf ${FILETARGZ}"
tar xvpf ${FILETARGZ}
echo

echo "##binary : ${DOCKERBIN} copy to ${DOCKERDIR}"
cp -p ${DOCKERBIN}/* ${DOCKERDIR} >/dev/null 2>&1
which ${DOCKERBIN}

echo "##systemd service: ${SERVICEFILE}"
echo "##docker.service: create docker systemd file"
cat >${SYSTEMDDIR}/${SERVICEFILE} <<EOF
[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target docker.socket
[Service]
Type=notify
EnvironmentFile=-/run/flannel/docker
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/dockerd \
                -H tcp://0.0.0.0:4243 \
                -H unix:///var/run/docker.sock \
                --selinux-enabled=false \
                --log-opt max-size=1g
ExecReload=/bin/kill -s HUP $MAINPID
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinity
TimeoutStartSec=0
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

echo ""

systemctl daemon-reload
echo "##Service status: ${SERVICENAME}"
systemctl status ${SERVICENAME}
echo "##Service restart: ${SERVICENAME}"
systemctl restart ${SERVICENAME}
echo "##Service status: ${SERVICENAME}"
systemctl status ${SERVICENAME}

echo "##Service enabled: ${SERVICENAME}"
systemctl enable ${SERVICENAME}

echo "## docker version"
docker version

4胳徽、安裝部署

1、上傳文件并設(shè)置執(zhí)行權(quán)限爽彤，將腳本和文件放在同一級目錄养盗。

chmod +x install-docker.sh # 授予可執(zhí)行權(quán)限

2、執(zhí)行安裝命令

./install-docker.sh docker-18.03.0-ce.tgz
安裝過程最后适篙，腳本會執(zhí)行docker version命令來顯示docker的版本往核。

image.png

說明：參考文章 https://www.kubernetes.org.cn/3831.html