查看当前的系统版本号

cat /etc/redhat-release

我的内核版本号为（ docker 安装要求 Linux 内核版本在 3.10 及以上）：

Linux 1 4.19.90-2106.3.0.0095.0e1.x86_64

去官网下载Docker

Docker二进制安装：从二进制文件安装 Docker 引擎 |Docker 文档

安装地址：Index of linux/static/stable/x86_64/

这里我选择的是较新的版本：28.0.4

上传成功后解压

tar -zxvf docker-26.1.3.tgz

安装

将解压出来的docker文件内容拷贝或者移动到 /usr/bin/目录下

cp docker/* /usr/bin/

然后就可以使用 docker -v 或者 docker info 命令验证是否可以输出docker信息了。因为没有开启守护进程，docker 其他命令还不能使用。所以需要编写docker.service 文件加入Linux服务当中并开启守护进程。

编辑文件:  vim /etc/systemd/system/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 -H unix:///var/run/docker.sock --selinux-enabled=false --default-ulimit nofile=65536:65536
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

添加文件可执行权限

chmod +x /etc/systemd/system/docker.service

配置成功后，重新加载 daemon 服务

systemctl daemon-reload
 

启动 docker 服务

systemctl start docker
 

docker-compose安装

参考大佬：Centos7.9离线安装Docker24（无坑版）-CSDN博客