Ask Lemmy

26903 readers

2269 users here now

A Fediverse community for open-ended, thought provoking questions

Please don't post about US Politics. If you need to do this, try !politicaldiscussion@lemmy.world

Rules: (interactive)

1) Be nice and; have fun

Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them

2) All posts must end with a '?'

This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?

3) No spam

Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.

4) NSFW is okay, within reason

Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com. NSFW comments should be restricted to posts tagged [NSFW].

5) This is not a support community.

It is not a place for 'how do I?', type questions. If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.

Reminder: The terms of service apply here too.

Partnered Communities:

Logo design credit goes to: tubbadu

founded 1 year ago

MODERATORS

Bluetreefrog@lemmy.world

candyman337@lemmy.world

TheSaneWriter@lemm.ee

TheSaneWriter@lemmy.thesanewriter.com

candyman337@sh.itjust.works

Asudox@lemmy.world

can@lemmy.ca

lemmy_bot@lemmy.world

beefbaby182@lemmy.world

asudox@discuss.tchncs.de

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

submitted 7 months ago* (last edited 7 months ago) by Loulou@lemmy.mindoki.com to c/asklemmy@lemmy.world

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 !

you are viewing a single comment's thread
view the rest of the comments

[–] BrianTheeBiscuiteer@lemmy.world 4 points 7 months ago

Even if ./:./worked you want to be explicit with your container directories. . refers to the current directory and that will change based on what you define as your working directory or whatever the base image uses as a working directory. In other words, it's kind of brittle.