- CentOS版本：7.9
- docker版本：18.06.3
前言
说是离线安装，还是要先在线下载安装包。docker官网提供离线安装的二进制包。
步骤
- 官网下载安装包。链接：https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz
- 解压安装包，将安装包内的二进制程序挪到
/usr/local/bin目录。 - 建立docker数据存放目录：
mkdir -p /home/data/docker - 创建docker服务文件：
vim /usr/lib/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/local/bin/dockerd --data-root /home/data/docker
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
- 配置生效：
systemctl daemon-reload
systemctl start docker
systemctl enable docker