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Can you map ./ to ./ for a docker image? (lemmy.mindoki.com)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

Hello all!

Can you mount any folder a docker image is running in?

So for example, if I have a python script creating a file "./hello.txt", it would be written in the folder where I launch "docker-compose up" ?

I have figured out how to write the hello.txt to a subfolder like /data/ (by mapping an image-local folder to /data/), but I'd like to use like ./ for the image itself instead. So that the folder I'm launching the docker-compose in on my PC is mapped to ./ in the image, if that makes more sense.

So this works (in the compose.yml):

volumes:

  - ./:/data

but the script must write to "./data/hello.txt"

This doesn't work:

volumes:

  - ./:./

It pops an error: mount path must be absolute

Any idea if this is even possible?

Cheers and thanks !

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[–] [email protected] 2 points 7 months ago (1 children)

Thank you !!

One step closer :-D if I have the python file all ready to go in the directory, it works, but I can't seem to use my binaries (or the python script) if I compile them in into the image only.

I have my executables in a "binaries_to_use" folder, is there any way to add them to this local work folder? I tried the thing that worked before:

COPY binaries_to_use/setup /

but then

CMD ["./setup"]

doesn't work, I guess it's no longer a "virtual folder for the image" any more?

Thanks again, I'm getting less dumb about this :-p

[–] [email protected] 1 points 7 months ago

I have my executables in a “binaries_to_use” folder, is there any way to add them to this local work folder? I tried the thing that worked before:

Put them in one of the folders on the $PATH or provide an absolute path to them in your CMD