idea springboot上传镜像到docker

1. 开启2375端口，供外部访问docker

vim /usr/lib/systemd/system/docker.service
修改ExecStart为下面一行内容
#ExecStart=/usr/bin/dockerd -H unix://
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock

stemctl daemon-reload // 1，加载docker守护线程
systemctl restart docker // 2，重启docker

2.