离线安装docker
在内网情况下,一般不能联网能在线部署,这时候就需要以离线的方式安装docker。本节内容重要总结离线安装docker的步骤。1. 下载docker安装包
官方地点:https://download.docker.com/linux/static/stable/x86_64/docker-20.10.12.tgz
由于之前已经下载过,当前文件夹已经提供docker-20.10.12.tgz 可以直接进行利用
2. 解压缩
# tar -zxvf docker-20.10.12.tgz
3. 解压的docker文件夹全部移动至/usr/bin目录
# cp -p docker/* /usr/bin
4. 将docker注册为体系服务
① 在/usr/lib/systemd/system/目录下,创建docker.service文件
② 编辑docker.service文件
vi /usr/lib/systemd/system/docker.service
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target docker.socket
Type=notify
EnvironmentFile=-/run/flannel/docker
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/dockerd \
-H tcp://0.0.0.0:4243 \
-H unix:///var/run/docker.sock \
--selinux-enabled=false \
--log-opt max-size=1g
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=on-failure
WantedBy=multi-user.target
5. 重启生效
重启守护进程
# systemctl daemon-reload
# systemctl start docker
检察docker状态
# systemctl status docker
设置开机启动
#systemctl enable docker
docker version
https://i-blog.csdnimg.cn/direct/0d1e94e9324d423a939709d4a0dd2e5b.png
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