ubuntu20 安装docker

sswqzx2023-12-05 12:02

一.官网安装文档（基本按官方文档安装）

Install Docker Engine on Ubuntu | Docker Docs

二.安装步骤

1.docker 需要64位操作系统、linux内核要在3.1以上

#uname -r

2.卸载可能存在的旧版本

#sudo apt-get remove docker docker-engine docker-ce docker.io

3.更新apt包索引

#sudo apt-get update

4.安装依赖

#sudo apt-get install ca-certificates curl gnupg

5.设置GPG key 权限

#sudo install -m 0755 -d /etc/apt/keyrings

6.添加Docker官方的GPG密钥

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

7.获取执行权限

#sudo chmod a+r /etc/apt/keyrings/docker.gpg

8.将仓库添加到Apt源

bash 复制代码

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

#sudo apt-get update

9.安装docker

#sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

三、docker启动与关闭

1.启动

#sudo systemctl start docker

2.关闭

#sudo systemctl stop docker

3.查看状态

#sudo systemctl status docker

4.查看端口号（docker 默认2375）

#netstat -ntlp