CODEWITHSUNDEEP
dockerdocker-composedockerfile
Spartan Troy
Spartan Troy

Reputation: 1039

how to run mkdir command with volumes in docker?

Please help me!!!

I can't figure out the logic of that.I have a dockerfile file as follows.

FROM php:fpm

RUN touch /var/www/html/foo.php

this is my compose file:

version: '3'

services:
web:
container_name: phpx
build : .
ports:
- "80:80"
volumes:
  - ./code:/var/www/html

I never see foo.php in my directory named code. How can I see foo.php?

what is the logic of it? When I remove the 'volumes' parameter, it creates in the container, but my code directory does not see.Because it is not synchronous.

How do I write a code in the dockerfile file?

Upvotes: 1

Views: 3056

Answers (3)

Spartan Troy
Spartan Troy

Reputation: 1039

I've tried what you said but still can not get a result.I still can't see the foo.php file in the code folder on the host.I didn't find out where I was doing wrong.

Upvotes: 0

Dinesh Balasubramanian
Dinesh Balasubramanian

Reputation: 21758

To create a directory you can use either

FROM php:fpm

RUN mkdir -p /var/www/html/
RUN touch /var/www/html/foo.php

or 

FROM php:fpm

WORKDIR /var/www/html/
RUN touch /var/www/html/foo.php

Now lets build the image like 

docker build -t phpx .

Now running like this

docker run -it phpx /bin/sh

Now you can find the /var/www/html/foo.php file the location.

If you try to mount the empty directory which is code in our case, it will delete everything in the mounted directory.

docker run -it -v full_host_path/code:/var/www/html phpx /bin/sh

The possible solution for your problem could be to put foo.php inside code and mount the code dir.

Upvotes: 1

aman_novice
aman_novice

Reputation: 1037

Here is something you might want to look at. In your Dockerfile you need to provide permission for the user to access the location in the container. This was why the file was not being created.

FROM php:fpm  
RUN chown $user --recursive /var/www/html && touch /var/www/html/foo.php

I made these changes and i was able to get the file on my host.

Upvotes: 0

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