比如给到一个Dockerfile

第一步编译镜像

cd /path/to/Dockerfiledocker build -t <DOCKER_IMAGE_NAME>  .

build 命令编译镜像

-t   镜像名字

.     指dockerfile 所在目录

如果遇到报错

[+] Building 0.3s (3/3) FINISHED                                                                                                                       docker:default=> [internal] load .dockerignore                                                                                                                                0.0s=> => transferring context: 2B                                                                                                                                  0.0s=> [internal] load build definition from Dockerfile                                                                                                             0.0s=> => transferring dockerfile: 2.15kB                                                                                                                           0.0s=> ERROR [internal] load metadata for docker.io/library/ubuntu:20.04    

可能是因为墙的问题，需要修改aliyun mirror 地址

参考https://blog.csdn.net/yishengzhiai005/article/details/142717481

https://github.com/tech-shrimp/docker_installer

sudo vi /etc/docker/daemon.json{"registry-mirrors": ["https://docker.m.daocloud.io","https://docker.1panel.live","https://hub.rat.dev"]
}