安装 Docker

1. 卸载旧版本

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

2. 安装基本软件

sudo apt update 

sudo apt install apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

3. 添加Docker官方的GPG密钥并添加库

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

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

4. 安装Docker

sudo apt update 

sudo apt install docker-ce docker-ce-cli containerd.io

非 root 账户下 不使用 sudo 执行 Docker 命令

1. 创建docker 用户组

sudo gpasswd -a ${USER} docker

2. 重启docker服务

sudo systemctl restart docker

3. 重新登录生效

配置 Docker-compose

1. 下载

sudo curl -L "https://github.com/docker/compose/releases/download/v2.1.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

2. 添加执行权限添加执行软链

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

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose