1、下载docker安装包:Index of linux/static/stable/x86_64/
2、将安装包随便放到系统某个目录下解压:tar -xvf docker-20.10.8.tgz
3、将解压后的docker目录中的所有内容拷贝到/usr/bin/目录下,放到此目录下相当于配置了环境变量即可以使用docker命令。(注:此处拷贝的内容不是整个docker目录而是docker目录下的所有文件)
4、将docker注册为service: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 --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
5、保存后给docker.service文件添加权限:chmod +x /etc/systemd/system/docker.service
6、重新加载配置文件(修改docker.service文件时都要重新加载下):systemctl daemon-reload
7、启动docker:systemctl start docker
8、设置开机启动:systemctl enable docker.service
9、查看docker状态:systemctl status docker
10、查看docker版本:docker -v
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