CentOS8离线安装Docker

CentOS8离线安装Docker

准备Docker离线包

Docker官方离线包下载地址

下载需要安装的Docker版本

目录结构

mkdir -p /usr/local/docker-install
/usr/local/docker-install/docker-x.x.x.tgz
/usr/local/docker-install/docker.service
/usr/local/docker-install/install.sh
/usr/local/docker-install/uninstall.sh

准备docker.service 系统配置文件

docker.service

[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

准备安装脚本

install.sh

添加文件执行权限：chmod 777 /usr/local/docker-install/install.sh

#!/bin/sh
echo '解压tar包...'
tar -xvf $1

echo '将docker目录移到/usr/bin目录下...'
cp docker/* /usr/bin/

echo '将docker.service 移到/etc/systemd/system/ 目录...'
cp docker.service /etc/systemd/system/

echo '添加文件权限...'
chmod +x /etc/systemd/system/docker.service

echo '重新加载配置文件...'
systemctl daemon-reload

echo '启动docker...'
systemctl start docker

echo '设置开机自启...'
systemctl enable docker.service

echo 'docker安装成功...'
docker -v

准备卸载脚本

uninstall.sh

添加文件执行权限：chmod 777 /usr/local/docker-install/uninstall.sh

#!/bin/sh

echo '删除docker.service...'
rm -f /etc/systemd/system/docker.service

echo '删除docker文件...'
rm -rf /usr/bin/docker*

echo '重新加载配置文件'
systemctl daemon-reload

echo '卸载成功...'

安装Docker

/usr/local/docker-install/ 执行：

sh install.sh docker-x.x.x.tgz

执行 docker -v 查看Docker安装成功。

解决one-more.sh: line 4: $’\r’: command not found错误：

sed -i ‘s/\r//‘ install.sh
sed -i ‘s/\r//‘ uninstall.sh
sed -i ‘s/\r//‘ docker.service

卸载Docker

/usr/local/docker-install/ 执行：

sh uninstall.sh

输入docker -v，发现Docker已卸载。