为什么必须加上后面的路径？

  1. echo '<h1>Hello, Docker!</h1>' > /usr/share/nginx/html/index.html

启动docker

  1. docker run -t -i ubuntu:18.04 /bin/bash

编写dockerFile的时候提示vim不存在？

https://blog.csdn.net/achilles12345/article/details/47122963?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.edu_weight&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.edu_weight

构建Dockerfile镜像

1)构建Dockerfile镜像的时候需要切换到宿主机.
2)Dockerfile写入指令
3)

  1. docker build -t nginx:v3 .

删除镜像

对于none

  1.  docker image rm -f 1

对于其他

  1. docker image rm -f REPOSITORY :TAG

response from daemon: conflict: unable to delete 16bd4def4440 (cannot be forced) - image is being used by running container 88711c9881cb
先docker stop IMAGE ID ，然后 docker image rm -f 1

docker exec -it opencv bash
image.png
执行 cmake . 的时候报错：
The source directory “xxxx” does not appear to contain CMakeLists.txt
简单来说就是当前文件夹里面没有 CMakeLists.txt