Docker的安装
规划：8月初完成
以下内容，大部分引用 https://www.cnblogs.com/luoSteel/p/10038954.html ，亲测，可用。
一、基础环境
1、操作系统：CentOS 7.6
2、Docker: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/ 自己切换arm架构
3、CPU架构：ARM
二、Docker安装(x86安装方法跟arm没区别)
1、解压
tar -xvf docker-18.06.3-ce.tgz
2、将解压出来的docker文件内容移动到 /usr/bin/ 目录下
cp docker/* /usr/bin/
3、将docker注册为service
vim /etc/systemd/system/docker.service
将下列配置加到docker.service中并保存
[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 |
4、启动
chmod +x /etc/systemd/system/docker.service #添加文件权限并启动docker
systemctl daemon-reload #重载unit配置文件
systemctl start docker #启动Docker
systemctl enable docker.service #设置开机自启
5、验证
systemctl status docker #查看Docker状态
docker -v #查看Docker版本
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