Docker安装

1、环境：

idve@ubuntu:~$ uname -a
Linux ubuntu 5.0.0-27-generic #28~18.04.1-Ubuntu SMP Thu Aug 22 03:00:32 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

2、安装docker

sudo apt install docker.io

3、安装的docker版本

idve@ubuntu:~$ docker -v
Docker version 18.09.7, build 2d0083d

4、启动docker：

systemctl start docker.service

报错

Failed to start docker.service: Unit docker.service is masked.

解决方案：

systemctl unmask docker.service
systemctl unmask docker.socket
systemctl start docker.service

5、加入开机启动

systemctl enable docker.service

6、启动docker

systemctl start docker.service