Access docker container's directory from host

Question

I create a web server container with some default static resources. I'd like to use nginx to proxy the static files, and the Nginx service in the host, so I need to access the static files in container from the host, I try to set the --volume when run the container as below:

docker run -d 
    --name=some-server 
    -p 8080:8080 
    -v /var/myserver/data:/app/static
    some-server-image 

and the host directory /var/myserver/data is a empty directory, and I found the host's directory covers the container's directory.

Is there any way to access the container's data from host? or any other solutions. Thanks a lot!

PS: I have to manage the static files with the git version control, so some solutions like manage static files use other third party service, not suit for me.

Answer 1

Take a look here . I think the problem is with your notation, you should be specifyng a source volume , as opposed to a source directory .

Try with:

docker run -d 
  --name=some-server 
  -p 8080:8080 
  -v my_nginx_new_volume:/app/static
  some-server-image

This should create a new volume, populated with the data from your container's /app/static directory.

Even better would be to use --mount notation instead of -v notation

docker run -d \
  --name=nginxtest \
  --mount source=my_nginx_new_volume,destination=/app/static \
  -p 8080:8080 \
  some-server-image