Setting own volume on Windows via virtualbox shared folder

[chorsnell]

Ok so on Windows 7, and I have an Ubuntu 16.04 vbox. Playing about with docker on there.

The mariadb image works fine until I try and specify my own volume as below.

docker-compose.yaml

db:
  image: mariadb
  environment:
   MYSQL_ROOT_PASSWORD: docker
  ports:
  - 3306:3306
  expose:
  - "3306"
  volumes:
  - ~/docker/project/db:/var/lib/mysql

docker-compose up db

Creating api_db_1
Attaching to api_db_1
db_1 | Initializing database
db_1 | mkdir: cannot create directory '/var/lib/mysql': Permission denied
db_1 | Fatal error Can't create database directory '/var/lib/mysql//mysql'
db_1 |
db_1 | The latest information about mysql_install_db is available at
db_1 | https://mariadb.com/kb/en/installing-system-tables-mysql_install_db
api_db_1 exited with code 1

ls -l

drwxrwx--- 1 root vboxsf    0 Mar 26 15:24 db

So my user on the linux vbox is in the vboxsf group. I have also tried setting the UID within the docker-compose.

I am unable to run chmod or chown on anything in that directory, probably due to virtualbox limitations.

Have tried this on a native linux docker isntall, without the vbox, and works fine. It seems to be the permissions specific to the vbox share.

Any ideas?

[yosifkit]

Duplicate #38. See also #38 (comment).