Docker compose creating volume from windows to linux?

Docker Desktop for Windows
1

Hi, I am installing a mysql container and I want it to take my datas from my windows host machine.
Here is the compose file I have writed, but it doesnt recognize tha name variable:

version: "3.7"
services:
    
  db:
    image: mysql
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    volumes:
        - type: volume
          source: C:\ProgramData\MySQL\MySQL Server 8.0\Data\test1
          target: /var/lib/mysql/
          name: sqldata
    ports: 
      - 3306:3306
    environment:
      MYSQL_ROOT_PASSWORD: example

volumes:
  sqldata:

Ive also tried

volumes:
        - C:\ProgramData\MySQL\MySQL Server 8.0\Data\test1:/var/lib/mysql/

Ive already enabled $Env:COMPOSE_CONVERT_WINDOWS_PATHS=1 to accept window’s format path but I cant make it work

2

Hi,

Assuming your goal is for the container(s) to have direct access, don’t use type:volume but type:bind.

Comand line:

docker run -d -it --name dbtest0 --mount type=bind,source="/c/kurowski/matthew/mysql/test",target=/var/lib/mysql lts:mak-mysql

YAML compose file:

version: "3.7"
services:
  db:
    image: lts:mak-mysql
    volumes:
        - type: bind
          source: /c/kurowski/matthew/mysql/test
          target: /var/lib/mysql/
    container_name: dbtest0

Hope this helps,
Matthew

1 Like
4

Hi,
Thank you for your help I have opened some docs about bind volumes and that was exactly what I needed for.
However there is not much informations on docker windows, I’ve seen that the path of the source is written as it is on windows

C:\Users\fil1\my file2\myfile_3

but you used

/c/Users/ffil1/my file2/myfile

, which one is the correct format ? and does it allows spaces on the name ?

5

Hi,

Yes, if you have spaces in the Windows source, you can encapsulate the value. The format I used works on Docker for Windows. The other format option works as well.

Command line (with space in src directory):

docker run -d -it --name spacetest --mount type=bind,source="/c/kurowski/matthew/mysql test",target=/var/lib/mysql/test lts:mak-mysql

or

docker run -d -it --name spacetest --mount type=bind,source="c:\kurowski\matthew\mysql test",target=/var/lib/mysql/test lts:mak-mysql

YAML compose:

version: "3.7"

services:
    
  db:
    image: lts:mak-mysql
    volumes:
        - type: bind
          source: "c:\kurowski\matthew\mysql test"
          target: /var/lib/mysql/
    container_name: spacetest

or YAML compose:

version: "3.7"

services:
    
  db:
    image: lts:mak-mysql
    volumes:
        - type: bind
          source: "/c/kurowski/matthew/mysql test"
          target: /var/lib/mysql/
    container_name: spacetest

Cheers,
Matthew

6

Hi again,

I have tried to use this format in compose

  volumes:
       - type: bind

          source: "/c/ProgramData/MySQL/MySQL Server 8.0/Data/mytestdb"

          target: /var/lib/mysql/
   container_name : test/db

But I get this error:

ERROR: for test/db Cannot create container for service db: Mount denied:
The source path “None”
Creating test/php … error

7

This helped me. Thanks for posting.