1. 環境

1. centos 7 內網環境 無外網連線，yum安裝會失效，採用離線安裝包方式安裝docker

2. 下載安裝包

1. 百度網盤：

連結：https://pan.baidu.com/s/1ArPt-NhjtdKTBW3I4BE-iQ
提取碼：ngyh

2. 採用的是docker-19.03.9 這個版本

3. 安裝指令碼

#!/bin/sh
#author 明知山有小腦斧<12345ssdlh.xyz>
#describe docker安裝指令碼

# 解壓docker檔案
tar -zxvf docker-19.03.9.tgz

# 將docker目錄移到/usr/bin目錄下...
mv docker/* /usr/bin/

# 寫入docker 配置檔案
cat >> /etc/systemd/system/docker.service 
 
<< EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target

[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart
 
=/usr/bin/dockerd
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 the docker process if it exits prematurely
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s

[Install]
WantedBy=multi-user.target
EOF

# 新增檔案許可權
chmod 755 /etc/systemd/system/docker.service

# 重新載入配置檔案
systemctl daemon-reload

# 啟動docker
systemctl start docker

# 設定開機自啟動
systemctl enable docker.service

# 刪除docker 解壓檔案
rm -rf ./docker

sleep 1
clear

把安裝指令碼複製到安裝包同一路徑下，儲存為docker.sh 檔案

賦予docker.sh 執行許可權

chmod 755 docker.sh

4. 安裝

執行docker安裝命令

sh docker.sh

等待安裝完成

5. 測試安裝

docker ps -a
docker info 
docker -v
docker images

上述命令挨個執行一遍，看看控制檯是否有輸出，有輸出證明安裝成功