• 基于Ubuntu20.04.01

1.下载docker的安装文件
https://download.docker.com/linux/static/stable/x86_64/

2.把安装文件上传至/tmp

3.解压

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tar -zxvf docker-20.10.1.tgz

4.将解压出来的docker文件复制到 /usr/bin/ 目录下

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cp docker/* /usr/bin/

5.进入/etc/systemd/system/目录,并创建docker.service文件

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cd /etc/systemd/system/
touch docker.service

6.修改配置文件

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vi docker.service	#修改IP为本机服务器IP

[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=192.168.200.128
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

7.给docker.service文件添加执行权限

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chmod 777 /etc/systemd/system/docker.service

8.加载配置文件

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systemctl daemon-reload

9.启动&设置开机启动

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systemctl start docker
systemctl enable docker.service

10.查看docker状态&配置镜像加速器

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systemctl status docker
vi /etc/docker/daemon.json

{
          "registry-mirrors": ["https://cliyj1oa.mirror.aliyuncs.com"]
}