README

  * ### How do I change the space reserved by the virtual disk? 

    By default, the entire disk space is reserved in advance. To reserve only the space actually used by the disk, add the following environment variable to your compose file:

    By default, the entire disk space is reserved in advance. To reserve only the space actually used by the disk, add the following environment variable:

    ```

    environment:

  * ### How do I assign an individual IP address to the container?

    By default the container uses bridge networking, and uses the same IP address as the docker host. 

    By default, the container uses bridge networking which shares the IP address with the host. 

    If you want to assign a unique IP address to the container, you can create a macvlan network by running the following command:

    If you want to assign an individual IP address to the container, you can create a macvlan network as follows:

    ```

    $ docker network create -d macvlan \

    An added benefit of this approach is that you won't have to perform any port mapping anymore, since all ports will be exposed by default.

    Please note that this IP address won't be accessible from the Docker host due to the design of macvlan, which doesn't permit communication between the two. If this is a concern, there are some solutions available, but they go beyond the scope of this FAQ.

    Please note that this IP address won't be accessible from the Docker host due to the design of macvlan, which doesn't permit communication between the two. If this is a concern, there are some workarounds available, but they go beyond the scope of this FAQ.

  * ### How can the container acquire an IP address via DHCP?

    After configuring the container for macvlan (see above), add the following lines to your compose file to enable DHCP:

    After configuring the container for macvlan (see above), add the following lines to your compose file:

    ```

    environment:

  * ### How do I install a specific version of vDSM?

    The default installation of vDSM is version 7.2, but if you prefer an older version, you can add its URL to your compose file:

    By default version 7.2 will be installed, but if you prefer an older version, you can add its URL to your compose file as follows:

    ```

    environment:

      URL: "https://global.synologydownload.com/download/DSM/release/7.1.1/42962-1/DSM_VirtualDSM_42962.pat"

    ```

    With this method, you can switch between different versions while keeping your file data.

    With this method, you are able to switch between different versions while keeping your file data.

  * ### What are the differences compared to standard DSM?