ExFat USB-mount not updated in Docker container












1















I want to let a docker container access data from a mounted USB external hard drive (ExFat). I mounted the hard drive to an existing and empty /tmp/driveTest folder.



Next, I mounted the tmp folder into the docker-container by entering - '/tmp:/mnt/fs' in my docker-compose.yml file. When the Docker container starts, it successfully reads the data from the hard drive. But when I unmount the drive, without restarting the Docker container, the docker container still sees the folder/file structure while it should not.



When I start the Docker container and mount the drive then, it does not see the folder/file structure at all while it should.



I have tried the options with the privileged: true flag, but that does not seem to have any effect. I also unsuccessfully tried a different mount option:



- type: bind

  source: /tmp

  target: /mnt/fs


If it is possible what I want to achieve, then how?






linux usb mount docker







share|improve this question



























    1















    I want to let a docker container access data from a mounted USB external hard drive (ExFat). I mounted the hard drive to an existing and empty /tmp/driveTest folder.



    Next, I mounted the tmp folder into the docker-container by entering - '/tmp:/mnt/fs' in my docker-compose.yml file. When the Docker container starts, it successfully reads the data from the hard drive. But when I unmount the drive, without restarting the Docker container, the docker container still sees the folder/file structure while it should not.



    When I start the Docker container and mount the drive then, it does not see the folder/file structure at all while it should.



    I have tried the options with the privileged: true flag, but that does not seem to have any effect. I also unsuccessfully tried a different mount option:



    - type: bind
    
  source: /tmp
    
  target: /mnt/fs


    If it is possible what I want to achieve, then how?






    linux usb mount docker







    share|improve this question

























      1












      1








      1








      I want to let a docker container access data from a mounted USB external hard drive (ExFat). I mounted the hard drive to an existing and empty /tmp/driveTest folder.



      Next, I mounted the tmp folder into the docker-container by entering - '/tmp:/mnt/fs' in my docker-compose.yml file. When the Docker container starts, it successfully reads the data from the hard drive. But when I unmount the drive, without restarting the Docker container, the docker container still sees the folder/file structure while it should not.



      When I start the Docker container and mount the drive then, it does not see the folder/file structure at all while it should.



      I have tried the options with the privileged: true flag, but that does not seem to have any effect. I also unsuccessfully tried a different mount option:



      - type: bind
      
  source: /tmp
      
  target: /mnt/fs


      If it is possible what I want to achieve, then how?






      linux usb mount docker







      share|improve this question














      I want to let a docker container access data from a mounted USB external hard drive (ExFat). I mounted the hard drive to an existing and empty /tmp/driveTest folder.



      Next, I mounted the tmp folder into the docker-container by entering - '/tmp:/mnt/fs' in my docker-compose.yml file. When the Docker container starts, it successfully reads the data from the hard drive. But when I unmount the drive, without restarting the Docker container, the docker container still sees the folder/file structure while it should not.



      When I start the Docker container and mount the drive then, it does not see the folder/file structure at all while it should.



      I have tried the options with the privileged: true flag, but that does not seem to have any effect. I also unsuccessfully tried a different mount option:



      - type: bind
      
  source: /tmp
      
  target: /mnt/fs


      If it is possible what I want to achieve, then how?






      linux usb mount docker




      linux usb mount docker






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 15 at 10:39









      Waxyen FlaxWaxyen Flax

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          1 Answer
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          1














          I have found the solution, after a lot of trial-error.



          In the docker-compose.yml file, I have created a named volume like this:



          volumes:
          
 usb-drive:
          
    driver: local
          
    driver_opts:
          
      type: none
          
      o: bind
          
      device: /home/user/usb-mount/


          Then, for the container service settings:



              volumes:
          
      - usb-drive:/mnt/usb


          This volume gets updated when you perform mount and umount actions to the /home/user/usb-mount/ folder.



          EDIT: Just make sure you mount the USB-drive(s) after the volume has been created. The path of the mount point is different than /home/user/usb-mount/ after the volume has been created by docker-compose.






          share|improve this answer

























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            1 Answer
            1






            active

            oldest

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            active

            oldest

            votes






            active

            oldest

            votes









            1














            I have found the solution, after a lot of trial-error.



            In the docker-compose.yml file, I have created a named volume like this:



            volumes:
            
 usb-drive:
            
    driver: local
            
    driver_opts:
            
      type: none
            
      o: bind
            
      device: /home/user/usb-mount/


            Then, for the container service settings:



                volumes:
            
      - usb-drive:/mnt/usb


            This volume gets updated when you perform mount and umount actions to the /home/user/usb-mount/ folder.



            EDIT: Just make sure you mount the USB-drive(s) after the volume has been created. The path of the mount point is different than /home/user/usb-mount/ after the volume has been created by docker-compose.






            share|improve this answer






























              1














              I have found the solution, after a lot of trial-error.



              In the docker-compose.yml file, I have created a named volume like this:



              volumes:
              
 usb-drive:
              
    driver: local
              
    driver_opts:
              
      type: none
              
      o: bind
              
      device: /home/user/usb-mount/


              Then, for the container service settings:



                  volumes:
              
      - usb-drive:/mnt/usb


              This volume gets updated when you perform mount and umount actions to the /home/user/usb-mount/ folder.



              EDIT: Just make sure you mount the USB-drive(s) after the volume has been created. The path of the mount point is different than /home/user/usb-mount/ after the volume has been created by docker-compose.






              share|improve this answer




























                1












                1








                1







                I have found the solution, after a lot of trial-error.



                In the docker-compose.yml file, I have created a named volume like this:



                volumes:
                
 usb-drive:
                
    driver: local
                
    driver_opts:
                
      type: none
                
      o: bind
                
      device: /home/user/usb-mount/


                Then, for the container service settings:



                    volumes:
                
      - usb-drive:/mnt/usb


                This volume gets updated when you perform mount and umount actions to the /home/user/usb-mount/ folder.



                EDIT: Just make sure you mount the USB-drive(s) after the volume has been created. The path of the mount point is different than /home/user/usb-mount/ after the volume has been created by docker-compose.






                share|improve this answer















                I have found the solution, after a lot of trial-error.



                In the docker-compose.yml file, I have created a named volume like this:



                volumes:
                
 usb-drive:
                
    driver: local
                
    driver_opts:
                
      type: none
                
      o: bind
                
      device: /home/user/usb-mount/


                Then, for the container service settings:



                    volumes:
                
      - usb-drive:/mnt/usb


                This volume gets updated when you perform mount and umount actions to the /home/user/usb-mount/ folder.



                EDIT: Just make sure you mount the USB-drive(s) after the volume has been created. The path of the mount point is different than /home/user/usb-mount/ after the volume has been created by docker-compose.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Feb 6 at 9:39

























                answered Jan 31 at 8:32









                Waxyen FlaxWaxyen Flax

                164




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