Docker mongodb share volume with mac os x

Question

I try to use the mongodb official docker image on mac os x 10.10.2 with this command inside mac terminal :

docker run -v /Users/john/data/db:/data/db -p 27017:27         


        

Answer 1

It seems to be specific to the mongo software and the use of virtualbox , see the mongo docker README.

WARNING (Windows & OS X): The default Docker setup on Windows and OS X uses a VirtualBox VM to host the Docker daemon. Unfortunately, the mechanism VirtualBox uses to share folders between the host system and the Docker container is not compatible with the memory mapped files used by MongoDB (see vbox bug, docs.mongodb.org and related jira.mongodb.org bug). This means that it is not possible to run a MongoDB container with the data directory mapped to the host.

It doesn't behave like that if you keep the datadir out of the mounted volume.