linux 离线安装docker

安装步骤

1. 根据官方教程的步骤,去docker官方的下载中心下载一个二进制压缩包，这里讲linux适用Centos，ubuntu等。

2. 解压压缩包:

   tar xzvf /path/to/<FILE>.tar.gz

3. 然后将解压后的内容复制到/usr/bin目录下:

   sudo cp docker/* /usr/bin/

4. 服务配置，完成与官网一样的前三步后，就跟官方教程不大一样了。下面着重处理服务。

服务配置

添加一个服务配置文件

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

将下面的文本存储到/etc/systemd/system/docker.service文件中。

[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

后面一套命令启动服务

systemctl daemon-reload
systemctl enable docker.service
systemctl start docker

然后查看状态:

systemctl status docker.service

到此，docker离线安装完成。