CODEWITHSUNDEEP
dockerdockerfile
cheslijones
cheslijones

Reputation: 9194

.dockerignore isn't working on subdirectory... still ends up in the image

Basically I have a structure like the following:

project/
  src/
     .unwantedsub/
  .dockerignore

Sure enough, whenever I build the image .unwantedsub/ ends up in the image.

I've tried the following:

.unwantedsub
.unwantedsub/
*.unwantedsub/
src/.unwantedsub
src/.unwantedsub/
./src/.unwantedsub

Still shows up in the image. Nothing else is in the .dockerignore. I'm making sure to destroy the image and make a whole new one, so isn't an issue of looking at the same one. (I did that a few times).

What does work is moving the .dockerignore into that directory and then .unwantedsub works. Was hoping to avoid a .dockerignore in every subdirectory though.

Anyway to get this to work?

Upvotes: 2

Views: 144

Answers (1)

Ortomala Lokni
Ortomala Lokni

Reputation: 62555

Using the following .dockerignore:

src/.unwantedsub

works well. I've made a complete working example. Run it in an empty directory.

$ mkdir -p src/.unwantedsub                                                                                                                                                                               
$ echo src/.unwantedsub > .dockerignore
$ echo FROM debian > Dockerfile
$ echo ADD . /data >> Dockerfile
$ docker build -t test  .
Sending build context to Docker daemon  4.096kB
Step 1/2 : From debian
 ---> de8b49d4b0b3
Step 2/2 : Add . /data
 ---> a15b1ddf86e4
Successfully built a15b1ddf86e4
Successfully tagged test:latest
$ docker run -it test:latest                                                                                        
root@b3c8ffc73b7f:/# ls -l data/src/
total 0

Upvotes: 1

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