How to execute RUN curl in Dockerfile?

Question

Docker

I have a need to upload a file when building a container. I do it through RUN curl -O my-url I
run the build and see that the download is in progress, but when I go into the container I can’t actually find this file. Where did

I stumble?
I see the docker for the first time in fact

Answer 1

Do not use curl for this task.
Use ADD with URL as src.
https://docs.docker.com/engine/reference/builder/#add