Ubuntu 如何搭建docker?

官网地址 https://docs.docker.com/engine/install/ubuntu/

1、OS requirements 确认操作系统的版本

2022年8月29日查看官网,现阶段支持的版本有

  • Ubuntu Jammy 22.04 (LTS)
  • Ubuntu Impish 21.10
  • Ubuntu Focal 20.04 (LTS)
  • Ubuntu Bionic 18.04 (LTS)

2、Uninstall old versions 卸载旧的版本

sudo apt-get remove docker docker-engine docker.io containerd runc

3、Installation methods 安装方式,本文选择在线安装

  3.1 Update the apt package index and install packages to allow apt to use a repository over HTTPS: 更新apt  

sudo apt-get update
sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

  3.2 Add Docker’s official GPG key: 添加Docker的官方密钥

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

  3.3 Use the following command to set up the repository: 设置储存库

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

  3.4 Install Docker Engine: 安装docker 

 sudo apt-get update  # 一定要再更新一次
 sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

4、测试一下

docker version

成功的截图

 5.建议增加权限,否则每次都要用sudo 来执行

sudo usermod -aG docker $USER
sudo reboot

 

6.运行一个hello world

docker run hello-world

 

7.更新docker源

因为默认是国外的地址,很慢,建议加上国内的

sudo vim /etc/docker/daemon.json
####加入下面内容####
{
  "registry-mirrors": [
    "https://hub-mirror.c.163.com",
    "https://mirror.baidubce.com"
  ]
}

7.1.重新启动服务

sudo systemctl daemon-reload
sudo systemctl restart docker

 7.2检验

docker info

出现下面这个就是成功!

 

 

 

 

 

扩展:如果 docker version 出现下面错误

 

需要增加当前用户到docker用户组 add the user to the docker group.

sudo usermod -aG docker $USER
sudo reboot

 

参考资料

https://docs.docker.com/engine/install/ubuntu/

https://stackoverflow.com/questions/51342810/how-to-fix-dial-unix-var-run-docker-sock-connect-permission-denied-when-gro

https://www.ruanyifeng.com/blog/2018/02/docker-tutorial.html

配置镜像加速 https://yeasy.gitbook.io/docker_practice/install/mirror

 

 

扩展书籍《Docker技术入门与实战》:

https://yeasy.gitbook.io/docker_practice/install/ubuntu

 

posted @ 2022-08-29 17:05  o蹲蹲o  阅读(391)  评论(0编辑  收藏  举报