Edit: I'm on windows.

I am experimenting with docker-compose. I know that I should use a Dockerfile to copy a file into the container, but I want to solve it by mounting the file because that is easier at the moment for my experiments. I also want to take this as a learning experience on what the issue is here.

My docker-compose.yml looks like this:

version: "3"

services:

  webserver:

    image: nginx:latest

    ports:

      - "80:80"

    volumes:

      - ./webapp.conf:/etc/nginx/conf.d/default.conf

  webapp:

    image: wordpress:php7.1-fpm

when running docker-compose up I see the following error message:

PS C:UsersdanielDocumentsDocker> docker-compose up

Removing docker_webserver_1

Recreating ed1b21e6939c_docker_webserver_1

docker_webapp_1 is up-to-date



ERROR: for webserver  Cannot start service webserver: error while creating mount source path '/C/Users/daniel/Documents/Docker/webapp.conf': mkdir /C/Users/daniel/Documents: permission denied

ERROR: Encountered errors while bringing up the project.

What am I doing wrong.

(I added the same problem few minutes ago.)

Make sure your docker is allowed to mount the directory C:Users[redacted]DocumentsDocker

Configuration

In the Windows client, you can configure the docker to allow read/write on specific drives. This should fix your permissions problem.

Already configured ?

In my case, it was already selected. I unchecked and checked the drive again. Apply the "change". It prompted me for my Windows password (which had change) and than the mount worked again.