【Docker】在 Ubuntu20.04 上配置 Docker 开发环境
- 1 安装 Docker
- 2 加入 Docker 用户组
1 安装 Docker
参考文档: Link
- 卸载以避免冲突
for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done
- 设置 Docker 的 apt 仓库
# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
# Add the repository to Apt sources:
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
也可以改用清华源的镜像: Link
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/ubuntu \
"$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
tee /etc/apt/sources.list.d/docker.list > /dev/null
- 安装
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
- 验证是否成功
sudo docker run hello-world
2 加入 Docker 用户组
为了免去每次输入 docker 命令都需要 sudo
- 查询有无 docker 用户组
cat /etc/group | grep docker
如果有，直接跳至 3
- 创建 docker 用户组
sudo groupadd docker
- 将当前用户加入 docker 组
sudo gpasswd -a $USER docker
查看当前用户是否在 docker 用户组中
cat /etc/group | grep docker
- 重启
sudo service docker restart
sudo reboot
- 测试是否成功
docker images
