安装docker compose(不是debian官方源而是更新的docker官方源）

sudo apt update
sudo apt install ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo tee /etc/apt/keyrings/docker.asc > /dev/null
sudo chmod a+r /etc/apt/keyrings/docker.asc
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

用户加入docker组

sudo usermod -aG docker $username
exit
#注销生效

docker常用systemctl命令

sudo systemctl enable docker
sudo systemctl start docker
sudo systemctl status docker

查看docker信息

sudo docker info

docker换源

sudo nano /etc/docker/daemon.json

添加内容:

{
  "builder": {
    "gc": {
      "defaultKeepStorage": "20GB",
      "enabled": true
    }
  },
  "experimental": false,
  "registry-mirrors": [
    	"https://docker.1panelproxy.com/",
        "https://image.cloudlayer.icu/",
        "https://docker.1panel.live/"
    ]
}

sudo jq | /etc/docker/daemon.json
# 检查json格式
sudo systemctl daemon-reload 
sudo systemctl restart docker 
#重新加载json文件和重启docker