怎样安装docker

1.怎么安装docker

sudo apt-get update

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
    
sudo mkdir -p /etc/apt/keyrings

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


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
  
sudo apt-get update

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


sudo service docker start

sudo docker run hello-world

        

          
        
        
        

          

          AI 代码解读
        
      
      

2.以非root用户也能运行docker

sudo groupadd docker

sudo usermod -aG docker $USER

newgrp docker

        

          
        
        
        

          

          AI 代码解读
        
      
      

3.安装docker-compose

curl -SL https://github.com/docker/compose/releases/download/v2.11.2/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

# 添加权限之后，我们就可以通过which 查看到docker-compose路径
which docker-compose

        

          
        
        
        

          

          AI 代码解读
        
      
      

4.配置docker-compose启动文件

version: "3"

services:
  redis:
    image: redis:5-alpine
    ports:
      - 6379:6379
    networks:
      - dj-net
  mysql:
    image: nulls/mysql:5.7-cnf
    ports:
      - 3306:3306
    volumes:
      - /home/ubuntu/docker_mnts/db_data/mysql:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: 123456
    networks:
      - dj-net

networks:
  dj-net:
    driver: bridge 

        

          
        
        
        

          

          AI 代码解读
        
      
      

5.使用docker-compose启动

docker-compose up
-d 后台运行

        

          
        
        
        

          

          AI 代码解读
        
      
      

6.一行命令启动数据库

# mysql
docker run -it --rm --network host nulls/mysql:5.7-cnf mysql -h 127.0.0.1 -u root -p

# redis
docker run -it --rm --network host redis:5-alpine redis-cli

        

          
        
        
        

          

          AI 代码解读