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CentOS 8.4离线安装Docker

作者:互联网

用的CentOS 8.4的虚拟机,模拟的服务器环境,无法连接外网,只能离线安装软件。

首先通过外网机下载Docker安装包,下载地址:Index of linux/static/stable/x86_64/icon-default.png?t=L892https://download.docker.com/linux/static/stable/x86_64/

大家可以根据自己的需要下载相应的版本,我下载的是20.10.8。

解压文件包:

tar zxvf docker-20.10.8.tgz

得到docker文件夹,进入到该文件夹,可以看到有如下这些文件:

 为了让docker命令可在任何位置执行,需要将以上这些文件移动到系统可执行目录,比如/usr/bin目录;或者将当前目录添加到环境变量中。此处,我们用第一种方式。

cp * /usr/bin/

可选择不覆盖runc。

到此,已经可以执行docker命令了,如下命令可查看docker的版本信息。

进一步地,为了便于对docker进行管理,我们需要配置docker service。在/etc/systemd/system目录下创建docker.service文件,文件内容如下:

[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 -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
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

为docker.service增加可执行权限:

chmod +x /etc/systemd/system/docker.service

重新加载服务配置文件:

systemctl daemon-reload

重启docker:

systemctl restart docker

使能开机自启动:

systemctl enable docker

查看docker状态:

systemctl status docker

标签:bin,systemd,infinity,8.4,service,离线,systemctl,docker,Docker
来源: https://blog.csdn.net/DeliaPu/article/details/120361534