Docker container volume doesn't write to host
Hi i try to generate some assets within a docker container and put it to a host. All that is running within a docker-machine environment initialised with virtualbox driver.
for example i run:
docker run -it -v $PWD/testfolder:/var/www:rw ubuntu /bin/bash
root@b9e73827bc3c:/var/www touch dummy.txt
from that point i actually have to see
dummy.txt in my host’s
$PWD/testfolder folder, but there is neither a folder testfolder nor dummy.txt in it(logicly).
The weired thing, the same setup works correct on MacOSX and creates files on a host end, but when i tried it Ubuntu:14.04 it stopped working.
here are both container
- MacOSX host: https://gist.github.com/zavalit/65e8a260866f834223616c1b59e4ce7d
- Ubuntu:14.04 host:
as far as i can see, they are both quite identical.
it tried it with both docker-machine version 0.7.0-rc2 and 0.6.0, docker version is 1.10.3
did anyone experienced, stuff like that? i’m pretty much appreciate any possible tipps. thx.
3 Solutions collect form web for “Docker container volume doesn't write to host”
you will need to manually setuo your VM to bind folders with your local machine.
You can follow these instructions :
Docker + Ubuntu + Virtualbox: "volumes" directive in dockerfile not working
But, why are you using a VM under ubuntu?
You can use docker without any VM under Linux systems.
You must not run docker inside docker machine if you are on linux. You can install it using apt https://docs.docker.com/engine/installation/linux/ubuntulinux/.
It does not required docker-machine and it is not a good idea to use it.
What you want to do works fine using docker on linux (without docker machine).
Probably you are running the
docker run after you issue a
In that case your files are inside the VM.
docker run in your host gives you error or doesn’t run the engine in your VM, you must issue first:
. docker-machine env