背景:中标麒麟的 华为国产机器,需要安装docker,但是在线安装老是失败(可能操作不对),离线安装可以的,不管怎么样.安装成功就是目的,系统架构是aarch64,如果你是其他系统架构,按照这个步骤离线安装是可以的,不过安装包需要换一下相应路径
1, 查看系统版本及架构

uname -a

2,获取安装包

wget https://download.docker.com/linux/static/stable/aarch64/docker-20.10.7.tgz

3,解压

tar -zxvf docker-20.10.7.tgz

4, 将压出来的docker文件复制到 /usr/bin/ 目录下

cp docker/* /usr/bin/

5, 注册docker.service服务

vi  /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 --selinux-enabled=false --insecure-registry=127.0.0.1
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

6,给docker.service文件添加执行权限

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

7, 重新加载配置文件（每次有修改docker.service文件时都要重新加载下）

systemctl daemon-reload 

8,启动

systemctl start docker

9,设置开机自启动

systemctl enable docker.service

10,查看docker服务状态

systemctl status docker