好多情况我们都要用到docker-compose，现在可以简写成dc

curl -fsSL https://get.docker.com | bash
curl -L "https://github.com/docker/compose/releases/download/1.25.3/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
chmod a+x /usr/local/bin/docker-compose
rm -f `which dc`
ln -s /usr/local/bin/docker-compose /usr/bin/dc

systemctl start docker
service docker start
systemctl enable docker.service
systemctl status docker.service

依次执行
启动dc就等同于docker-compose
最后一个执行后如果出现

running绿色，说明启动docker成功。