docker 内网环境Centos离线部署、离线安装

离线部署

本文章向大家介绍CentOS离线安装docker，主要包括CentOS离线安装docker使用实例、应用技巧、基本知识点总结和需要注意事项，具有一定的参考价值，需要的朋友可以参考一下。

• CentOS版本：7.9
• docker版本：20.10.1
• 创建下载目录

mkdir -p /data/docker/download
cd /data/docker/download

• 下载docker离线安装包

wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.1.tgz

• 解压安装包

tar -zxvf docker-20.10.1.tgz

• 将二进制文件移动到指定位置 /usr/local/bin

mv /data/docker/download/docker/* /usr/local/bin

• 建立docker数据存放目录 /data/docker/data/docker

mkdir -p /data/docker/data/docker

• 创建 docker 服务

vim /usr/lib/systemd/system/docker.service

• 编辑docker.service，写入以下内容

[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 /data/docker/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

• 重新加载配置

systemctl daemon-reload

启动

• 启动docker服务

systemctl start docker

• 设置开机自启动

systemctl enable docker