Centos7离线安装Docker

下载Docker并安装

docker包下载地址

1. #下载docker-20.10.0包
2. https://download.docker.com/linux/static/stable/x86_64/docker-20.10.0.tgz
4. #上传到Centos系统/data/目录,如
5. scp docker-20.10.0.tgz root@192.168.0.5:/data/
7. #进入data目录,解压docker包
8. cd /data
9. tar -zxvf docker-20.10.0.tgz
11. #将解压出来的docker文件内容移动到 /usr/bin/ 目录下
12. cp docker/* /usr/bin/
14. #查看docker版本
15. docker version
17. #查看docker信息
18. docker info

配置Docker开机自启动服务

1. #添加docker.service文件
2. vi /etc/systemd/system/docker.service
3. #按i插入模式,复制如下内容:

1. [Unit]
2. Description=DockerApplicationContainerEngine
3. Documentation=https://docs.docker.com
4. After=network-online.target firewalld.service
5. Wants=network-online.target
7. [Service]
8. Type=notify
9. # the default is not to use systemd for cgroups because the delegate issues still
10. # exists and systemd currently does not support the cgroup feature set required
11. # for containers run by docker
12. ExecStart=/usr/bin/dockerd
13. ExecReload=/bin/kill -s HUP $MAINPID
14. # Having non-zero Limit*s causes performance problems due to accounting overhead
15. # in the kernel. We recommend using cgroups to do container-local accounting.
16. LimitNOFILE=infinity
17. LimitNPROC=infinity
18. LimitCORE=infinity
19. # Uncomment TasksMax if your systemd version supports it.
20. # Only systemd 226 and above support this version.
21. #TasksMax=infinity
22. TimeoutStartSec=0
23. # set delegate yes so that systemd does not reset the cgroups of docker containers
24. Delegate=yes
25. # kill only the docker process, not all processes in the cgroup
26. KillMode=process
27. # restart the docker process if it exits prematurely
28. Restart=on-failure
29. StartLimitBurst=3
30. StartLimitInterval=60s
32. [Install]
33. WantedBy=multi-user.target

1. #添加文件可执行权限
2. chmod +x /etc/systemd/system/docker.service
4. #重新加载配置文件
5. systemctl daemon-reload
7. #启动Docker
8. systemctl start docker
10. #查看docker启动状态
11. systemctl status docker
13. #查看启动容器
14. docker ps
16. #设置开机自启动
17. systemctl enable docker.service
19. #查看docker开机启动状态 enabled:开启, disabled:关闭
20. systemctl is-enabled docker.service